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• Munin 2 data not showing up on graph

  - by letronje

  I have a fresh installation of Munin 2.0.1 on my Ubuntu 12.04 and the first time I tried to view graphs, it showed them properly(After installation, I had to follow http://munin-monitoring.org/wiki/CgiHowto2 to set it up) After that, the graphs show up, but with with just one data point(single vertical line) as if no data is being collected after I tried it for the first time. In Munin 1.4, there was munin-cron which was run every 5 minutes and I saw new data being plotted in the graph atleast every 5 minutes. But If there is no cron job in v2, How does data collection work with Munin2 ? Is the data collected when the graphs are requested ? The file timestamps in /var/lib/munin have not changed after the first time I tried the graphs. But i do see munin-node process running(restarted in several times). I also see no errors in the munin node log files or apache2 log files. Any idea what could be wrong ? Screenshot : http://i.imgur.com/uzuAK.png Also, is there a way to pre-create graphs instead of doing it dynamically, on the fly ?

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• Free or Open Solution for Storing and Charting CSV data

  - by rrrfusco

  I'm presently storing CSV files, combining them, opening them in open office, creating pivot tables and then generating charts from the spreadsheet. I've looked at OOBase, but appending csv files to base is clunky for some reason. SQLite seems like a good database solution, but I've haven't found a good charting program that connects to it with ease. Although open office (or libreoffice) maintains the references and allows you to update the information, this process is far from efficient. There are too many steps and it seems one program should handle all of these tasks. A better program would be more intuitive, allow you to simply add inserts into a database, and include an interface for standard charting settings. EDIT Simplest Automated Analysis and Chart Generation Tool? The above answer references Spotfire and Tableau, each of which has a free 14 and 30 day trial. Each program is nicely streamlined and designed. I'm looking for a program between this quality and LibreOffice. Can you recommend a better open or free desktop solution for windows?

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• Can't find disk usage in one directory

  - by Xster

  Similar questions are asked frequently but no suggested answers solved my issue. I have some disk space usage that I can't find as well. In df Filesystem 1K-blocks Used Available Use% Mounted on /dev/sda1 144183992 136857180 2652 100% / udev 2013316 4 2013312 1% /dev tmpfs 808848 876 807972 1% /run none 5120 0 5120 0% /run/lock none 2022116 76 2022040 1% /run/shm overflow 1024 0 1024 0% /tmp I checked the inodes, I checked lsof for +L1 or deleted files, I rebooted, I checked for files hidden behind mounts but none of them were the issue. It grows periodically and I'm running out of things to delete to feed the beast. It's all in the home directory of the only user I have. In du in ~ du -h --max-depth=1 192K ./.nv 2.1M ./.gconf 12K ./Pictures 1.6M ./.launchpadlib 12K ./Public 24K ./.TemporaryItems 8.9M ./.cache 12K ./Network Trash Folder 28K ./.vnc 11M ./.AppleDB 48K ./.subversion 1.9G ./.xbmc 8.0K ./.AppleDesktop 12K ./.dbus 81M ./.mozilla 12K ./Music 160K ./.gnome2 44K ./Downloads 692K ./.zsh 236K ./.AppleDouble 64K ./.pulse 4.0K ./.gvfs 1.4M ./.adobe 44K ./.pki 44K ./.compiz-1 168K ./.config 1.4M ./.thumbnails 12K ./Templates 912K ./.gstreamer-0.10 8.0K ./.emacs.d 92K ./Desktop 1.3M ./.local 12K ./Ubuntu One 12K ./Documents 296K ./.fontconfig 12K ./.qt 12K ./.gnome2_private 20K ./.ssh 20K ./.mission-control 12K ./Videos 12K ./Temporary Items 640K ./.macromedia 124G . I can't find a way to figure out how it got to that 124G in that directory. There are no mount points in home.

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• Postgresql base backup script

  - by Terry Lorber

  I'm using the following script to do a file-level backup of Postgresql. I sometimes see that the last part, to do cleanup after "pgs_backup_stop" is called, hangs while it waits for the last WAL to be created. The REF_FILE to search for is sometimes wrong. I'm also shipping these files to a different machine, every 5 minutes via rsync. What do other people do to safely remove old WAL files? #!/bin/bash PGDATA=/usr/local/pgsql/data WAL_ARCHIVE=/usr/local/pgsql/archives PGBACKUP=/usr/local/pgsqlbackup PSQL=/usr/local/pgsql/bin/psql today=`date +%Y%m%d-%H%M%S` label=base_backup_${today} echo "Executing pg_start_backup with label $label in server ... " CP=`$PSQL -q -Upostgres -d template1 -c "SELECT pg_start_backup('$label');" -P tuples_only -P format=unaligned` RVAL=$? echo "Begin CheckPoint is $CP" if [ ${RVAL} -ne 0 ] then echo "PSQL pg_start_backup failed" exit 1; fi echo "pg_start_backup executed successfully" echo "TAR begins ... " pushd $PGBACKUP tar -cjf pgdata-$today.tar.bz2 --exclude='pg_xlog' $PGDATA/* popd echo "TAR completed" echo "Executing pg_stop_backup in server ... " $PSQL -Upostgres template1 -c "SELECT pg_stop_backup();" if [ $? -ne 0 ] then echo "PSQL pg_stop_backup failed" exit 1; fi echo "pg_stop_backup done successfully" TO_SEARCH="*${CP:0:2}000000${CP:3:2}.00${CP:5}" echo "Check for ${WAL_ARCHIVE}/${TO_SEARCH}.backup" while [ ! -e ${WAL_ARCHIVE}/${TO_SEARCH}.backup ]; do echo "Waiting for ${WAL_ARCHIVE}/${TO_SEARCH}.backup" sleep 1 done REF_FILE="`echo ${WAL_ARCHIVE}/*${CP:0:2}000000${CP:3:2}`" echo "Reference file ${REF_FILE}" # "-not -newer" or "\! -newer" will also return REF_FILE # so you have to grep it out and use xargs; otherwise you # could also use the -delete action find ${WAL_ARCHIVE} -not -newer ${REF_FILE} -type f | grep -v "^${REF_FILE}$" | xargs rm -f REF_FILE="`echo ${PGBACKUP}/pgdata-$today.tar.bz2`" echo "Reference file ${REF_FILE}" find $PGBACKUP -not -newer ${REF_FILE} -type f -name pgdata* | grep -v "^${REF_FILE}$" | xargs rm -f

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• How to utilize 4TB HDD, which is showing up as 2.72TB

  - by mason

  I have two internal HDD's. They're both 4TB capacity. They're both formatted with the GPT partitioning scheme, and they're Basic Discs (not dynamic). I'm on Windows 8 64bit. I have UEFI, not BIOS. When I view the discs in Computer Management MMC with Disk Management, they show that each partition is formatted as NTFS and takes up the entire drive. And it shows that each drive has a capacity of 3725.90GB in the bottom section of Disk Management, but 2.794.39GB in the top section. When I view the discs in "My Computer"/"This PC" they only show up as 2.72TB, which matches the amount capacity I'm getting from some other 3TB HDD's I have. Why are they showing up as only 2.72GB? Will I be able to use the full 4TB capacity? Also of note, although I'm not sure it's relevant: I often get corrupted files on these two HDD's. None of my other HDD's give me corrupted files. Usually the problem is fixed by running chkdsk /f on the drives, but it's extremely annoying. In the picture below, it's the X: and Y: drives. Steps I've tried Flashed latest BIOS (MSI J.90 to K.30)

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• deploy LAMP config to new boxes with low/no effort

  - by user1444233

  I'm spending a lot of time setting up new Centos 6 instances. I use a VCS (Subversion) for most of the config files and all of the webapp source files (Github), but even with excellent package managers (like yum, npm, easy_install, etc.) it still takes time. I'd like to get to the point where I could try out a new potential web host by just signing up for an account, logging in and automatically sucking my standardised config onto the box. I know there are a set of tools that can help: Puppet Chef Vagrant and a set of services that sell solutions: [Jumpbox] http://www.jumpbox.com/ [BitNami Cloud] http://bitnami.org/cloud I don't mind investing time in learning a new tool, but as a no-budget start-up, I'm keen to keep monthly costs down. My biggest concern is that time spent on the server config is time away from the codebase, and that's where I think my team and I should be investing our energy, at least until we get funded and scale up a bit. I'd be grateful of some recommendations for which way to jump on config: stick with SSH and manual deploys, at least until you get big. bite the bullet and learn [say] puppet. You may only use it 8-10 times, but it pays to have such an easy tunable server bootstrap. don't bother, just pay the $100/month for a standard config service. It'll cost you $1000/year, but you should focus on the code. Other questions in this domain I use quite a complex stack (Drupal, Zend Server, MySQL, PHP, MongoDB, Python, django), but are there standard(ish) setups that include these or that I could build upon more quickly? Are the configs optimised for small, medium, large VPS (1GB, 4GB, 16GB)? How secure are they?

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• Change XRDP keyboard layout to en-gb Ubuntu 12.04

  - by Earl Sven

  Does anybody know how to change the keyboard layout to en-gb in an XRDP session on Ubuntu 12.04? I am using mstsc.exe to connect to an XRDP server hosting an XVNC session, however I cannot work out how to apply the UK keyboard layout. A bit of googling has yeilded these instructions which allow me to change the keymap, however using the keymap file I downloaded from here I loose the ability to use the arrow keys, home/end etc. Comparing the file with the standard one there are substantially more differences than I would expect considering the similarity between the layouts. I only have RDP access to the box so i don't seem to be able to actually generate a new layout per the instructions above, maybe it's a local console thing? Also I can't change either the RDP client used or the RDP server as they are my only access to the system, I don't have local console access. I do have root priveleges on the OS however. Any thoughts? Edit: I have found http:// xrdp.sourceforge.net/documents/keymap/newkeymap.html (apologies for not typing the link properly but the antispam filter won't let me post more than 2 links) this documentation on the XRDP sourceforge page which describes keymap file format. It indicates the values in the keymap files are unicode 0x64 etc, however the files I have already on my system seem to use a different format 0:0 or 65307:27 etc, does anybody know what the difference is?

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• Browser sends http request with RANGE

  - by nute

  I have a local testing environment in a Fedora virtual machine. Strangely, resources (css and js files) don't seem to work. Looking at Firebug, I see that the browser sends the HTTP request with "Range bytes=0-". The server responds with either an empty 200OK or an empty 206 Partial Content. Here is an example: Response Headers Date Mon, 23 Nov 2009 23:33:26 GMT Server Apache/2.2.13 (Fedora) Last-Modified Thu, 19 Nov 2009 22:58:55 GMT Etag "18-3aec-478c14dbee138" Accept-Ranges bytes Content-Length 15084 Content-Range bytes 0-15083/15084 Connection close Content-Type text/css Request Headers Host fedora.test User-Agent Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.5) Gecko/20091105 Fedora/3.5.5-1.fc11 Firefox/3.5.5 Accept text/css,*/*;q=0.1 Accept-Language en-us,en;q=0.5 Accept-Encoding gzip,deflate Accept-Charset ISO-8859-1,utf-8;q=0.7,*;q=0.7 Keep-Alive 300 Connection keep-alive Referer http://fedora.test/pictures/ Cookie __utma=26341546.1613992749.1258504422.1258569125.1258752550.4; __utmz=26341546.1258504422.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); PHPSESSID=tqf8jfmc77qihe97rl4tmhq685 Range bytes=0- If-Range "18-3aec-478c14dbee138" I don't know if the browser is sending the wrong request, or if it's the server that is doing this. Request made to the outside (such as google analytics) are working fine. This is running in Fedora 11 in VirtualBox. Apache. PHP. The files are being served through the "shared folders" feature of VirtualBox (could it be related?). No error logs could help me.

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• Why does RoboCopy create a hidden system folder?

  - by Svish

  I thought I would try out RoboCopy for mirroring the contents of a folder to another harddrive. And seems like it worked. But, for some reason, to see the destination folder I have to both enable Show hidden files, folders and drives and disable Hide protected operating system files. Why is this? Both the source and destination folder was initially both visible and normal directories. When I open up the properties for that destination folder, the Hidden attribute is even disabled. What is going on here? Is it because I ran it in an administrator command prompt? Or is it an issue with my choice of modifiers? Or does robocopy really just work this way? robocopy E: I:\E /COPYALL /E /R:0 /MIR /B /ETA Update: Tried to copy another drive to another folder, and I got the same thing happening there. But when I try to just copy a folder to a different folder, then the destination folder stays normal. Could it be because I copy a drive? If so, how can I prevent this from happening? Cause I really do want to copy the whole drive...

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• Removing old kernel entries in Grub

  - by To Do

  I regularly delete old kernels leaving only the latest two entries using Synaptic. I'm using Precise. However in my Grub "previous Linux version" menu there are quite a few entries labelled 2.6.8. I cannot find these linux-images in Synaptic. dpkg -l | grep linux-image Gives: rc linux-image-3.0.0-17-generic 3.0.0-17.30 Linux kernel image for version 3.0.0 on x86/x86_64 ii linux-image-3.2.0-27-generic 3.2.0-27.43 Linux kernel image for version 3.2.0 on 32 bit x86 SMP ii linux-image-3.2.0-29-generic 3.2.0-29.46 Linux kernel image for version 3.2.0 on 32 bit x86 SMP ii linux-image-3.4.0-030400-generic 3.4.0-030400.201205210521 Linux kernel image for version 3.4.0 on 32 bit x86 SMP ii linux-image-generic 3.2.0.29.31 Generic Linux kernel image Sudo update-grub gives: Generating grub.cfg ... Found linux image: /boot/vmlinuz-3.4.0-030400-generic Found initrd image: /boot/initrd.img-3.4.0-030400-generic Found linux image: /boot/vmlinuz-3.2.0-29-generic Found initrd image: /boot/initrd.img-3.2.0-29-generic Found linux image: /boot/vmlinuz-3.2.0-27-generic Found initrd image: /boot/initrd.img-3.2.0-27-generic Found linux image: /boot/vmlinuz-2.6.38-11-generic Found initrd image: /boot/initrd.img-2.6.38-11-generic Found linux image: /boot/vmlinuz-2.6.38-10-generic Found initrd image: /boot/initrd.img-2.6.38-10-generic Found linux image: /boot/vmlinuz-2.6.38-8-generic Found initrd image: /boot/initrd.img-2.6.38-8-generic Found memtest86+ image: /boot/memtest86+.bin Found Windows Vista (loader) on /dev/sda1 sudo apt-get remove linux-image-2.6.8-8-generic gives: E: Unable to locate package linux-image-2.6.8-8-generic E: Couldn't find any package by regex 'linux-image-2.6.8-8-generic' My boot folder contains the following: abi-2.6.38-10-generic initrd.img-3.4.0-030400-generic abi-2.6.38-11-generic memtest86+.bin abi-2.6.38-8-generic memtest86+_multiboot.bin abi-3.2.0-27-generic System.map-2.6.38-10-generic abi-3.2.0-29-generic System.map-2.6.38-11-generic abi-3.4.0-030400-generic System.map-2.6.38-8-generic config-2.6.38-10-generic System.map-3.2.0-27-generic config-2.6.38-11-generic System.map-3.2.0-29-generic config-2.6.38-8-generic System.map-3.4.0-030400-generic config-3.2.0-27-generic vmcoreinfo-2.6.38-10-generic config-3.2.0-29-generic vmcoreinfo-2.6.38-11-generic config-3.4.0-030400-generic vmcoreinfo-2.6.38-8-generic extlinux vmlinuz-2.6.38-10-generic grub vmlinuz-2.6.38-11-generic initrd.img-2.6.38-10-generic vmlinuz-2.6.38-8-generic initrd.img-2.6.38-11-generic vmlinuz-3.2.0-27-generic initrd.img-2.6.38-8-generic vmlinuz-3.2.0-29-generic initrd.img-3.2.0-27-generic vmlinuz-3.4.0-030400-generic initrd.img-3.2.0-29-generic and ls -l /etc/grub.d yields: total 56 -rwxr-xr-x 1 root root 6715 Apr 17 20:16 00_header -rwxr-xr-x 1 root root 5522 Oct 1 2011 05_debian_theme -rwxr-xr-x 1 root root 7407 May 17 09:22 10_linux -rwxr-xr-x 1 root root 6335 Apr 17 20:16 20_linux_xen -rwxr-xr-x 1 root root 1588 May 3 2011 20_memtest86+ -rwxr-xr-x 1 root root 7603 Apr 17 20:16 30_os-prober -rwxr-xr-x 1 root root 214 Oct 1 2011 40_custom -rwxr-xr-x 1 root root 95 Oct 1 2011 41_custom -rw-r--r-- 1 root root 483 Oct 1 2011 README gdisk -l /dev/sda yields: Partition table scan: MBR: MBR only BSD: not present APM: not present GPT: not present *************************************************************** Found invalid GPT and valid MBR; converting MBR to GPT format. *************************************************************** Disk /dev/sda: 312581808 sectors, 149.1 GiB Logical sector size: 512 bytes Disk identifier (GUID): F832A498-05E1-4615-B5B1-757ACB4A757A Partition table holds up to 128 entries First usable sector is 34, last usable sector is 312581774 Partitions will be aligned on 2048-sector boundaries Total free space is 4183661 sectors (2.0 GiB) Number Start (sector) End (sector) Size Code Name 1 2048 61442047 29.3 GiB 0700 Microsoft basic data 3 163842048 169986047 2.9 GiB 8200 Linux swap 4 169986048 312578047 68.0 GiB 0700 Microsoft basic data 5 61444096 159666175 46.8 GiB 8300 Linux filesystem Please help with removing the old and inexistent kernels from Grub.

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• VMware virtual machine network devices malfunctioning

  - by sheepz

  I'm running Ubuntu 10.04 LTS and VMvware workstation 7.0.1 build-227600. The virtual machine i'm running in VMware is a custom distribution built on Debian Linux version 3.1. I'm still pretty much a beginner with UNIX administration. After having messed around with the vmware (changed only the name of the folder, the vmx and and other .v* files accordingly in which the .vmx was situated, and the configuration in the vmx file accordingly), the network devices on the virtual machine do not work anymore. The virtual machine is used for securely sending messages. The virtual machine: As far as I know, this perl file called proxy-gen-ifalias eth0 is responsible for properly setting up the two virtual network devices eth0 and eth1. The Virtual machine comes with a GUI interface in which I have set up two ethernet network devices, one internal, the other external. Now, after having messed around with this, the UI gives me this error message: perl proxy-gen-ifalias eth0 /etc/modprobe.d/alias-eth0 /sbin/update-modules perl proxy-gen-ifalias eth1 /etc/modprobe.d/alias-eth1 /sbin/update-modules ifdown eth0 ifdown: interface eth0 not configured ifdown eth1 ifdown: interface eth1 not configured perl proxy-gen-netcfg /etc/network/interfaces ifup eth0 SICCSIFADDR: No such device eth0: ERROR while getting interface flags: No such device SIOCSIFNETMASK: No such device eth0: ERROR while getting interface flags: No such device Failed to bring up eth0. ifconfig eth0 eth0: error fetching interface information: Device not found make: *** [/etc/network/interfaces] Error 1 ~ Here are the contents of the two perl files referred to in the message: paste.pocoo.org/show/2AMzAYhoCRZqlGY7wUFk/ proxy-gen-netcfg

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• Windows 7 - "A disk read error occured. Press Ctrl + Alt + Del to restart"

  - by Senthil

  Problem: When I switch on my PC, after BIOS POST, a cursor is blinking for about 5 seconds and then I am getting this error message: A disk read error occurred. Press Ctrl + Alt + Del to restart. I am able to go into BIOS. But Windows loader doesn't even start. This message is shown after my motherboard logo comes and goes. Symptoms: I DID notice my system freezing for minutes at a time for past two days. Also, in the past two days, it stopped half way through the Window booting process. I had to do hard reset couple of times to get it working. But since today morning, I only get this error message. Configuration: Operating System: Windows 7 Ultimate 32-bit only. Hard disk: 1 Physical Disk - 80GB SATA Partitions: Two (2) - C: and D: File System: NTFS No drive encryption or compression is turned on. After I searched on the net, I have found people mentioning these possible causes: Hard Disk is physically failing Corrupt MBR Bad Sector I am planning to buy a new hard disk, install Windows on it and continue. But I need data from the old hard disk. The data I want is in D: drive, outside any Windows user folder, is not encrypted or compressed or protected in anyway. I think if someone/something can get the disk working again and knows NTFS, the data can be hopefully read. What steps should I follow to recover files from the defective disk? Update: I bought a new disk, installed windows on it and added the defective one as a slave. Then I was able to read the data from the defective hard disk. Though chkdsk found lots of errors, the files I wanted were not affected and I got them back :) I am not using that hard disk anymore though it seems to be working at the moment.

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• Wordpress hacked. Disabled hacked site but bad traffic continues [closed]

  - by tetranz

  Possible Duplicate: My server's been hacked EMERGENCY My Ubuntu 10.04 LTS VPS has been hacked, probably via a WordPress site. I was alerted to it when I noticed the incoming traffic was unusually high. A WordPress site was littered with eval(base64_decode(...)) code in lots of files. My fault, I had some files writeable by www-data which shouldn't have been. I've disabled that site (a2dissite ... and restart Apache). This has reduced it but I am still getting some malware type traffic. My server runs several WordPress and Drupal sites and a home grown PHP site. I have captured traffic with tcpdump and looked at it Wireshark. It's reaching out to the login page of some Joomla sites, trying multiple logins. The traffic stops when I stop Apache. If I a2dissite every site and reload (not restart) Apache the traffic continues. At that point I have no virtual hosts running and no DocumentRoot in my apache2.conf so I don't know how Apache is still running something. I have searched the other sites with grep for likely looking php code with no success. I may have missed it but I haven't found anything suspicious in the Apache logs. I have mod-status running. I haven't really seen anything much there except that someone is still trying to do a POST to the theme page on the disabled WordPress site but they now get a 404. What should I be looking for? Are there any tools or whatever which would give me more info about how Apache is generating that traffic? Thanks

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• win8: access denied to external USB disk; update access rights fails

  - by Gerard

  I use to work with 2 laptops (vista and win7), my work being files on an external usb disk. My oldest laptop broke down, so I bought a new one. I had no option other than take win8. 1/ I suspect something changed with access rights, as my external disk suffered some "access denied" problem on win8. I was prompted (by win8) somehow to fix the access rights, which I tried to do, getting to the properties - security. This process was very slow and ended up saying "disk is not ready". Additonnally, the usb somehow was not recognized anymore. 2/ Back to win7, I was warned that my disk needed to be verified, which I did. In this process, some files were lost (most of them i could recover from the folder found00x, but I have some backup anyway). Also, I don't know why, but under win7, all the folder showed with a lock. 3/ Then back again to win8. Same problem : access denied to my disk + no way to change access rights as it gets stuck "disk is not ready". Now I am pretty sure there is some kind of bug or inconsistence in win8 / win7. I did 2/ and 3/ a few times. At some point, I also got an access denied in win7. I could restore access rigths to the disk to "system" (properties - security - EDIT for full control to group "system" ...). But then I still get the same access right pb on win8, and getting stuck in the process to restore full control to "system" -- and "admin" groups. Now, after I tried for more than 3 days, I am losing my patience with that bloody win8 which I did not want to buy but had no choice. I upgraded win8 with the windows updates available. Does not help. Anybody can help me ?

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• Setting up a Pagefile and Partition in Server 2008

  - by Brett Powell

  I am setting up 18 new machines for our company, and I have instructions from my new boss on setting up a Pagefile and Partition. I have looked at their existing machines to base the new setups off of, but there is no consistency between any 2 machines, which has left me extremely frustrated to say the least. My instructions are... 1) Set a static pagefile (use recommended value as max/min), set it on SSD if SSD available. 2) Make 3 partitions: C: is used for OS and install files D: is used for backups on machines with a SSD. On machines without SSD create a D: partition for pagefile (2*installed RAM for partition size) E: must be the partition hosting user files I have never messed with Pagefiles before, and looking at their existing machines is offering no help. My questions are... 1) As the machines I am setting up have no SSD (just 2 SATA drives) does it sound like the Pagefile should be setup on the C: (primary) drive or the D:? The instructions are vague so I have no idea. 2) As C: and D: are both Physical drives, does it sound like C: should be partitioned out to create the E: drive or D:? Thanks for any help I can get. I am extremely stressed out under a massive workload right now, and these vague instructions are quite infuriating.

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• Is my HDD dead forever?

  - by Roberto

  Yesterday I turned on my computer and it couldn't boot. I found out the hd (320GB SATA Seagate Momentus 7200.3 for notebook) was broken and it couldn't be recognized by the BIOS. I have another of the same hard drive, so I exchanged the boards. I found out that there is a problem on its board since my good hard drive didn't work. But the broken hard drive doesn't work with the good board as well: it can be recognized but when I insert a Windows Instalation DVD it says the hard drive is 0GB. I put it in a case and use it in another computer via USB, and but it doesn't show up in the "My Computer". I used a software to recover files called "GetDataBack for NTFS", it recognized the hard drive but with the wrong size (2TB). I try to make it read the hard drive but it got an I/O error reading sector. It tries to read, the hard drive spins up. So, since I'm using a good board on it, the problem seems to be internal. Is there anything someone could do to recover the files from it?

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• Unix Permissions issue with users belonging to the same group accessing a folder

  - by TK Kocheran

  I have a folder I'd really like to allow another user on this machine access to. I'm using mt-daapd to serve music to the network, so I'd like to enable the mt-daapd user to access my Music directory, /home/rfkrocktk/Music. The master user is rfkrocktk obviously. I've tried to set all of my permissions properly on the directory, but the mt-daapd user can't acces the files. I created a group called media-users and added both rfkrocktk and mt-daapd to it in order to give mt-daapd permission to simply read all of the files in that directory and subdirectories. If I run id on each of my users, here's what's displayed: $ id rfkrocktk > uid=1000(rfkrocktk) gid=1000(rfkrocktk) groups=1000(rfkrocktk),4(adm),20(dialout),24(cdrom),29(audio),46(plugdev),104(lpadmin),115(admin),120(sambashare),124(vboxusers),1001(jupiter),2002(media-users) $ id mt-daapd > uid=123(mt-daapd) gid=65534(nogroup) groups=65534(nogroup),2002(media-users) It definitely seems that both users are a part of the media-users group, so what could be going wrong? If I run ls -l on the actual Music directory to see its permissions, here's the output: drwxr-Sr-- 201 rfkrocktk media-users 12288 2011-01-13 12:26 Music If I run ls -l on the Music directory to get its children, here's the output: drwxr-Sr-- 3 rfkrocktk media-users 4096 2010-12-20 15:31 2DBoy drwxr-Sr-- 3 rfkrocktk media-users 4096 2010-05-25 12:50 ABBA drwxr-Sr-- 3 rfkrocktk media-users 4096 2009-12-28 15:19 Access Denied drwxr-Sr-- 10 rfkrocktk media-users 4096 2009-12-28 15:19 AC-DC drwxr-Sr-- 3 rfkrocktk media-users 4096 2009-12-28 15:19 Aerosmith drwxr-Sr-- 3 rfkrocktk media-users 4096 2010-06-04 10:45 A Flock of Seagulls drwxr-Sr-- 4 rfkrocktk media-users 4096 2010-05-28 18:13 Alestorm drwxr-Sr-- 3 rfkrocktk media-users 4096 2010-06-22 23:29 Amon Amarth drwxr-Sr-- 5 rfkrocktk media-users 4096 2009-12-28 15:19 Anberlin ... From this, it would seem that I should be able to access the folders from mt-daapd, but I can't. Running sudo -i -u mt-daapd ls -l /home/rfkrocktk/Music displays nothing, indicating to me that for whatever reason, mt-daapd doesn't have access to read the folder. What am I doing wrong?

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• Plesk + Apache + PHP (FastCGI): Constant session permissions problems, conflicts between HTTP / HTTPS

  - by Hans Engel

  I've just moved a collection of sites over to a brand-new server, running Apache 2.2.3, PHP 5.3, and Plesk 10.1.1. I am having problems with file permissions on PHP sessions, which are being stored in /var/lib/php/session. I originally set the permissions like so for this folder: drwxrwx--- 2 apache psacln 8192 Mar 22 23:25 session This worked fine, for HTTP sessions. Files were being saved in that folder with these permissions: -rw------- 1 client1 psacln 0 Mar 22 23:24 sess_507... -rw------- 1 client2 psacln 0 Mar 22 23:25 sess_8o1... The problem, however, is that PHP scripts accessed via HTTPS do not seem to be run by the same client1 or client2 user. I deleted files in the session directory and accessed a login page via HTTPS to see how sessions were being saved when initiated via this protocol: -rw------- 1 apache apache 0 Mar 22 23:25 sess_507... So, for whatever reason, sessions initiated by clients browsing with HTTPS were being saved by apache:apache, while sessions from HTTP clients were saved with someclient:psacln. What I'd like to ask: How can I avoid this problem with session permissions? When sessions are created via unencrypted HTTP and a client visits an HTTPS portion of the site, permission errors are shown, since apache:apache tries to access the session save created by someclient:psacln. The converse is also true. Can I change the user which runs the Apache HTTPS server, via Plesk or the command line? If not, can I have PHP sessions save with rw-rw---- permissions, and then add apache to the psacln group? Any other suggestions on how to fix this issue?

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• Introducing Oracle System Assistant

  - by B.Koch

  by Josh Rosen One of the challenges with today's servers is getting the server up and running and understanding what all of the steps are once you plug the server in for the first time. So many different pieces come into play: installing drivers, updating firmware, configuring RAID, and provisioning the operating system. All of these steps must be done before you can even start using the server. Finding the latest firmware and drivers, making sure you have the right versions, and knowing that all the different software and firmware components work together properly can be a real challenge. If not done correctly, such as if you separately downloading disk firmware or controller firmware that doesn't match the existing OS drivers, you could experience bugs, performance problems, and incompatibilities. Gone are the days of having to locate the tools and drivers media that shipped with the server only to find out that newer versions of software and firmware are available on the web. Oracle has solved these challenges in the new X3-2 family of servers by introducing Oracle System Assistant. Oracle System Assistant is an innovative tool that is built-in to every new x86 server. It provides step-by-step assistance with configuring the server, updating firmware and drivers, and provisioning the operating system. Once you have completed all of the steps in the Oracle System Assistant tool, the server is ready to use. Oracle System Assistant was designed to be easy and straightforward. Starting it is as simple as pressing F9 when the server is booting. You'll need a keyboard, monitor, and mouse or you can use the remote console feature of Oracle ILOM (Integrated Lights Out Manager) to access a virtual KVM to the server from any machine. From there Oracle System Assistant will walk you through each of the steps necessary to set up your server. After configuring the network settings for Oracle System Assistant, the next step is to check for any new software or firmware for the server. Oracle System Assistant connects back to Oracle using your My Oracle Support account and downloads any updates that were made available to you for this specific server. This is where you really start to see the innovation that went into Oracle System Assistant. Firmware for Oracle ILOM and BIOS, operating system drivers, and other system firmware (including for option cards and disk drivers) come as a single bundle, downloading as a single unit, that has been engineered and tested to work together by Oracle. Oracle System Assistant figures out the right combination for your server, so you don't have to. Now that the server has the latest firmware, Oracle System Assistant will next walk you through configuring the hardware. From Oracle System Assistant, you can configure many Oracle ILOM settings, including the network settings and initial user accounts. This ensures that ILOM is accessible and ready to use. Oracle System Assistant is where all parts of the server come together. In addition to communicating with Oracle ILOM and interacting with BIOS, Oracle System Assistant understands and can configure the storage subsystem. Before installing the operating system, Oracle System Assistant can detect the storage configuration and configure RAID for all disks in the system. At this point, the server is ready to be provisioned with the host operating system. You can use Oracle System Assistant to provision a supported OS, including Oracle Linux, Oracle VM, RHEL, SuSe Linux, and Windows. And by using Oracle System Assistant, you can be sure that the proper OS drivers are installed for each of the installed hardware components. With Oracle System Assistant, initial setup of the server has never been easier. If we can innovate around problems and find solutions to make our servers easier to manage, this reduces IT costs and makes managing servers simpler. I think with Oracle System Assistant we have done just that. Josh Rosen is a Principal Product Manager at Oracle and previously spent more than a decade as a developer and architect of system management software. Josh has worked on system management for many of Oracle's hardware products ranging from the earliest blade systems to the latest Oracle x86 servers.

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• CouchDB crashes at startup when path to config file has space(s)

  - by Barry Wark

  I'm hoping to run CouchDB as a per-user Launch Agent on OS X. I'm using the coucdbx-core folder from the CouchDB Server.app as the base of my CouchDB deployment. I'd like each user to have their own couch instance (on a different port), necessitating separate config files for each instance. The logical place to put these files is in ~/Library/Application Support/ for each user. I can put the entire distribution in ~/Library/Application Support/my-app/coucdbx, and put the .ini at ~/Library/Application Support/my-app/local.ini. Starting couchdb as bin/couchdb -a ../local.ini (from ~/Library/Application Support/my-app/coucdbx) works great. But I'd like to save every user the ~50MB couchdbx and install the couchdbx-core in a shared location (e.g. within my app's .app bundle). When I do this, the path to the per-user config file contains a space, and I get the following error when starting CouchDB: $ bin/couchdb -n -a ~/Library/Application\ Support/us.physion.ovation/default.ini {"init terminating in do_boot",{{badmatch,{error,{bad_return,{{couch_app,start,[normal,["/Users/hs/prj/build-couchdb/build/etc/couchdb/default.ini","/Users/hs/prj/build-couchdb/build/etc/couchdb/local.ini"]]},{'EXIT',{{badmatch,{error,{error,enoent}}},[{couch_server_sup,start_server,1,[{file,"/Users/hs/prj/build-couchdb/dependencies/couchdb/src/couchdb/couch_server_sup.erl"},{line,56}]},{application_master,start_it_old,4,[{file,"application_master.erl"},{line,274}]}]}}}}}},[{couch,start,0,[{file,"/Users/hs/prj/build-couchdb/dependencies/couchdb/src/couchdb/couch.erl"},{line,18}]},{init,start_it,1,[]},{init,start_em,1,[]}]}} Is there any way to provide a config file at the command line, if that config file's path includes space(s)? Despite my best efforts in the mailing list archives, wiki and google, I haven't been able to find a solution or a definitive "it can't work". Any help greatly appreciated.

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• virtualbox snapshot size

  - by intuited

  I've started using Windows 7 under VirtualBox on an Ubuntu 10.10 host. I took about 6 snapshots over the course of setting up the VM from the Windows restore image that came with the computer. My installations were more or less limited to windows updates, antivirus, and the VB Guest Additions. I uninstalled much more than I installed. The VM was running for about 24 hours total. The snapshots increased in size at a worrisome rate, even when the machine was idle: the snapshot .vdi file for the period between 11:22 PM and 9:02 AM is 6 gigs in size; during that time very little happened. The other .vdi files are between 0.5 and 3 GB, most between 1 and 2 GB. The corresponding .sav files are between 0.5 and 1 GB. The Internet connection where I was doing this is limited to 30KB/s download, which, constantly saturated, works out to less than 3 GB per 24 hour period. Is this normal? Is there something that can be done to make snapshots more practical? update On starting up the VM again, I've noticed that mscorsvw is using significant processing time. Apparently this process [precompiles .NET assemblies]. This may have been going on during the period when I was taking snapshots, which might explain some of the snapshot size increase. I would be somewhat surprised to learn that this could be responsible for over 10 GB of additional disk usage, or that it would run for roughly 24 hours. Is this possible?

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• How can I explain to dspam that the user "brandon" is the same as "brandon@mydomain"

  - by Brandon Craig Rhodes

  I am using dspam for spam filtering by running the "dspamd" daemon under Ubuntu 9.10 and then setting up a Postfix rule that says: smtpd_recipient_restrictions = ... check_client_access pcre:/etc/postfix/dspam_everything ... where that PCRE map looks like this: /./ FILTER lmtp:[127.0.0.1]:11124 This works well, and means that all users on my system get all of their email, whether "dspam" thinks it is innocent or not, and have the option of filtering on its decisions or ignoring them. The problem comes when I want to train dspam using my email archives. After reading about the "dspam" command, I tried this on the files in my Inbox and spam boxes (which date from when I was using another filtering solution): for file in Mail/Inbox/*; do cat $file | dspam --class=innocent --source=corpus; done for file in Mail/spam/*; do cat $file | dspam --class=spam --source=corpus; done The symptom I noticed after doing all of this was that dspam was horrible at classifying spam — it couldn't find any! The problem, when I tracked it down, was that I was training the user "brandon" with the above commands, but the incoming email was instead compared against the username "brandon@mydomain", so it was running against a completely empty training database! So, what can I do to make the above commands actually train my fully-qualified email address rather than my bare username? I would like to avoid having to run "dspam" as root with a "--user" option. I would have expected that the "dspam" configuration files would have had an "append_domain" attribute or something with which to decorate local usernames with an appropriate email domain, but I can't find any such thing. When I used to use the Berkeley DB backend to "dspam", I solved this problem by creating a symlink from one of the databases to the other. :-) But that solution eventually died because the BDB backend is not thread-safe, so now I have moved to the PostgreSQL back-end and need a way to solve the problem there. And, no, the table where it keeps usernames has a UNIQUE constraint that prevents me from listing both usernames as mapping to the same ID. :-)

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• Mplayer no sound when playing some movies

  - by Ivan Peevski

  Ok, that's a bit of a strange problem, that somehow crept into my system. It used to work fine. Here is the problem as far as I can identify it. When I try to play certain video files with mplayer, there is no sound. As far as I can tell, it is only an issue with ac3 and dts sound tracks (using the ffmpeg decoder). Mplayer says: ========================================================================== Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders AUDIO: 48000 Hz, 6 ch, s16le, 1536.0 kbit/33.33% (ratio: 192000->576000) Selected audio codec: [ffdca] afm: ffmpeg (FFmpeg DTS) ========================================================================== [AO_ALSA] Playback open error: Device or resource busy Failed to initialize audio driver 'alsa' Could not open/initialize audio device -> no sound. Audio: no sound (similar with ac3 sound, but using the ffac3 audio codec). Trying different audio output (-ao oss/pcm/sdl) doesn't fix the problem. The strange thing is that if I play these files directly with ffplay, they work fine. mplayer sound with mp3/ogg is fine My alsa configuration is standard (no /etc/asound.conf or ~/.asound*) OS: Linux Gentoo Mplayer: 1.0_rc4_p20100213 (SVN-r30554-4.3.4) FFMpeg: 0.5_p20601-r1 (SVN-r20601) Any other information I can provide?

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• Problem configuring php-fpm with nginx

  - by Nisanio

  First of all: I'm not an expert in configuring things. This is very new for me, so, my apologies in advance. At work we have a Centos server. The guy who worked here before installed nginx. We need to made a php site, so, obviously, I need to set up php and make it work with nginx. Making short a very long tale, I had to replace the nginx binary with a new one (because the older was compile without fast-cgi), and I had to recompile and install php (because the new version has fpm). Then I struggle with the config files, making this nginx.conf (not all the file) user php; location ~ \.php$ { fastcgi_pass 127.0.0.1:9000; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name; include fastcgi_params; } and uncomment some parameters in php-fpm (to much to detail here, but the important is that group and user are "php") I never could start the php-fpm with the instructions of the book sudo /usr/sbin/php-fpm start But after look at the net, I found this sudo /usr/local/sbin/php-fpm --fpm-config=/usr/local/etc/php-fpm.conf This worked (I think) I restarted nginx. But... nothings happens with php... My calls to php files (via firefox) doesn't even appear in the log (/opt/nginx/logs/error.log) I'm really, really exhausted and lost... Could anyone help me, pleaaase.... :( Thanks in advance

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• Start daemon after specific samba share is mounted

  - by getack

  I axed this question on AskUbuntu, but it's not getting any traction from there... So I'll try here as well: I have a homebrew headless NAS running 12.04. In it I have a bunch of disks that are presented as a samba share thanks to Greyhole. If I want to do anything to the files within this share, I must do it through greyhole so that everything is updated properly. Thus, the share must be mounted locally and then accessed from there if I want to work on the files from the local machine. I do this mounting automatically thanks to these instructions. I also have Deluge installed that takes care of all my torrenting needs. Deluge's default download location is in this share, so that all the downloads are immediately available to the rest of the network. Obviously for everything to work, the share must be mounted, otherwise Deluge is going to have a problem downloading to it. The problem is, it seems like Deluge is starting before the shares are mounted when the system boots. So downloading/seeding does not continue automatically after boot. I have to log in and force a manual rescan and start on each torrent otherwise all the torrents just hangs on the error. Is there a way I can make deluge start after the shares got properly mounted? I looked into Upstart's emits functionality but I cannot seem to get it to work properly. Any advice?

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