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• Methods to transfer files from Windows server to linux server

  - by Raze2dust

  Hi, I need to transfer webserver-log-like-files containing periodically from windows production servers in the US to linux servers here in India. The files are ~4 MB in size each and I get about 1 file per minute. I can take about 5 mins lag between the files getting written in windows and them being available in the linux machines. I am a bit confused between the various options here as I am quite inexperienced in such design: I am thinking of writing a service in C#.NET which will periodically archive, compress and send them over to the linux machines. These files are pretty compressible. WinRAR can convert 32 MB of these files into a 1.2 MB archive. So that should solve the network transfer speed issue. But then how exactly do I transfer files to linux? I could mount linux drive on windows server using samba, or should I create an ftp server, or send the file serialized as a POST request. Which one would be good? Also, I have to minimize the load on the windows server. Mount the windows drive on linux instead. I could use the mount command or I could use samba here (What are the pros and cons of these two?). I can then write the compressing and copying part in linux itself. I don't trust the internet connection to be very stable, so there should be a good retry mechanism and failure protection too. What are the potential gotchas in these situations, and other points that I must be worried about? Thanks, Hari

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• Imagemagick convert with resample option

  - by coneybeare

  I am creating thumbnails from much larger images and have been using this command successfully for some time: convert FILE -resize "64x" -crop "64x64+0+16" +repage -strip OUTFILE I also do some other processing that is not relevant to the question. I realized that this does not adjust the resolution at all, so if I use a 300dpi image, it ends up displaying really small on some devices. I want to resample it to 72x72 so I have been trying with this command: convert FILE -resize "64x" -crop "64x64+0+16" +repage -strip -resample 72x72 OUTFILE And expected the 64x64 image at 300dpi to be resampled to a 64x64 image at 72dpi, but instead, I am getting a very funny size and density. Here is "identify" output for the original and post-processed file WITHOUT the resample: coneybeare $ convert "aa.jpg" -crop "64x64+0+16" +repage -strip "aa.png" coneybeare $ for image in `find . -type f`; do identify $image; identify -verbose $image | egrep "^ Resolution"; done ./aa.jpg JPEG 1130x1695 1130x1695+0+0 8-bit DirectClass 1.492MiB 0.000u 0:00.000 Resolution: 300x300 ./aa.png PNG 64x64 64x64+0+0 8-bit DirectClass 7.46KiB 0.000u 0:00.000 Resolution: 118.11x118.11 And here is the "identify output for the command WITH the resample: coneybeare $ convert "aa.jpg" -crop "64x64+0+16" +repage -strip -resample 72x72 "aa.png" coneybeare $ for image in `find . -type f`; do identify $image; identify -verbose $image | egrep "^ Resolution"; done ./aa.jpg JPEG 1130x1695 1130x1695+0+0 8-bit DirectClass 1.492MiB 0.000u 0:00.000 Resolution: 300x300 ./aa.png PNG 15x15 15x15+0+0 8-bit DirectClass 901b 0.000u 0:00.000 Resolution: 28.34x28.34 So, the question is: What am I doing wrong and how can I fix it so the end result is a 64x64 cropped thumbnail image at 72dpi?

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• How can I remove all drivers and other files related to a USB Mass Storage device?

  - by Bob

  I have a flash drive here that does not work on one OS on computer - let's call it the desktop Windows 7. It works fine on another computer - laptop Windows 7. It also works fine on Windows 8 on the same desktop computer. Other flash drives work fine under desktop Windows 7. So not a hardware issue, not a generic USB Mass Storage driver issue. It's something specific to this drive. On desktop Windows 7, I can connect the drive but no volume comes up under Windows Explorer. Ditto for Disk Management. With diskpart, loading hangs until I unplug the drive, if I replug it and try list disk it hangs again. If I unplug the drive at this point, list disk prints out all attached drives - including the just removed flash drive. The drive consistently appears under Device Manager, but uninstalling the drivers, restarting and reinstalling the drivers (by inserting the drive) only works for the first insertion. After that it fails again. I get the feeling that the driver files are not actually removed, and are corrupted, meaning every reinstall it's the same corrupted drivers being installed. Is there any way to remove these drivers completely? Or perhaps some other setting Windows 7 retains? Formatting the drive through another computer/OS does not help. I've also tried a complete wipe and rebuild of the MBR and single partition. The allocation unit size makes no difference; neither does a NTFS format. This is a relatively small matter, and I would not like to reinstall the entire OS!

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• How to create a mysql database that can contain any character, also different languages

  - by Jakke

  I'm trying to create a database that has to contain articles in different languages. I'm using Mariadb as my server and I know bits of SQL. My knowledge doesn't really cover details like the differences between engines like MyISAM, InnoDB etc or character sets like utf8/16/32, latin 5/7/etc. I do know that the character set has importance, I guess what I'm looking for is an all-encompassing character set and an engine that best deals with this type of content. Also, is there an advantage in storing articles in multiple data rows (equivalent of different pages) to make things a little faster, or would you store a whole article in a single data row. Or does that depend on the size of the articles? Sorry for my noobish question, I know the information is all out on the internet but it would take me quite a long time to research and get a grip on everything. Would be cool if someone with experience could give me a little head start and point me in the right direction. This is for a intranet site, consider the content to be somewhat like a blog (and no, I don't want wordpress or something similar at this point). Not sure if it matters, but I tend to create and manipulate my tables with phpmyadmin, I use apache as web server and it all runs on Linux.

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• Could hybrid SSD + HDD be made with fixed internal partitions?

  - by Aaron

  I was pretty close to getting Seagate's Momentus XT but have been scared off by the many problems reported on forums and feedback sites, especially in Mac Book Pros. So I'm waiting for mk 2 with some extra flash and better reliablilty I'm assuming will come out this year. What would suit me better though is a 32+500 hybrid drive where I have more control over what is on the flash drive and what is on the disk drive. So there are 2 physical partitions within the one 2.5" hard drive enclosure which use different media internally (32GB for core files and 500GB for data and multimedia). The partitions would be locked so they can't be changed. - Or even better, the disk driver just makes them appear as two disks to the OS that share the same bus... Perhaps it's ok if the bios just sees the first drive until the OS is loaded. Is either of it technically possible? Obviously difficult to market outside of the enthusiast market. The SSD memory modules can be pretty small right, so they could even make them a card that plugs into a secondary connection on the enclosure. That would be good for computer builders as well as for upgrading and recoverability. Then future operating systems could recognise these system SSD drives and automatically install the OS + swap files on it. While placing document libraries on the larger data drive. While in the longer term HDD will probably disapear there will always be a trade off between speed, storage size and expense.

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• Can't start Windows 7 after cloning HDD

  - by Paul

  Brief description: cloned HDD1 - HDD2 HDD1 partition 1 boots HDD1 partition 2 boots HDD2 partition 1 boots HDD2 partition 2 doesn't boot Windows, but is bootable in general Now verbosely: In all the cases computer is the same. I have two Windows 7 installations on HDD1 - both are booting fine. I choose between them using standard Windows 7 boot loader menu. Technically there are 4 partitions: 100 MB Boot loader partition (active), Windows 7 copy 1 (25 GB), Windows 7 copy 2 (150 GB) and Working partition. All are primary. In past few days I tried to clone the whole HDD1 to HDD2 of the same size (but 2,5 inch form factor) as is using Minitool Partition wizard. Everything has been copied, all files are accessible, no faults in file system structure, even boot loader wasn't damaged and I hadn't to repair it. But I can boot only first installation of Windows 7 (it boots without issues). When I choose the second installation, I get immediately a completely black screen without any texts, cursors and other data. HDD isn't accessed after that. This black screen is sensitive to Ctrl-Alt-Delete which causes computer reboot. I did some experimenting: Installed Windows 7 to that partition - it booted fine. Then I renamed "Windows" to "Windows.old" and copied Windows directory from HDD1 as it was, using Far Manager, and got the same troubles - black screen. (Of course I performed renaming and copying from other copy of Windows). So, it seems that problems are inside this installation of Windows, somewhere in its files.

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• no A record show in the answer section in dig results

  - by eric low

  To check the record for the domain, run dig with domain name as the parameter. dig example.com any I get the below result. Why there is no A record show in the result. What did i do wrong during the setup. Please advice what suppose to look into it. Hope everyone can help me to resolve the case asap. ; <<>> DiG 9.9.3-P2 <<>> example.com any ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 44674 ;; flags: qr rd ra; QUERY: 1, ANSWER: 8, AUTHORITY: 4, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;example.com. IN ANY ;; ANSWER SECTION: example.com. 3489 IN MX 100 biz.mail.com. example.com. 3482 IN NS ns1.domain.com. example.com. 3482 IN NS ns2.domain.com. ;; AUTHORITY SECTION: example.com. 3482 IN NS ns2.domain.com. example.com. 3482 IN NS ns1.domain.com. ;; Query time: 0 msec ;; SERVER: xxx.252.xxx.xxx#53(xxx.252.xxx.xxx) ;; WHEN: Wed Oct 30 04:48:34 CDT 2013 ;; MSG SIZE rcvd: 349

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• Looking for an application that scrolls or pans netbook screens running Windows

  - by therobyouknow

  I'm looking for a Windows 7 and XP compatible Windows desktop panning/scrolling tool. This is to solve a problem where some applications for example MSN have settings/preference Windows that are not resizeable. I have a Netbook with a small maximum screen resolution e.g. 1024x600. The fixed non-resizeable windows are too large for this display screen size so I cannot see all of the items on these windows, particularly the OK button to save settings. What I would like is a desktop scrolling/panning tool where if I move my mouse pointer to any edge of the display, it pans to show the region of the too-large-fixed window that I could not see. I use a Samsung N110 and Toshiba NB100 netbooks. I'm looking for: A general program that provides desktop panning/scrolling/expanded resolution to allow all regions of a non-resizeable fixed window Preferably a non-graphics hardware specific program but will accept a solution that works with both the above machines I'm NOT looking for (i.e. unsatisfactory answers others have asked that I've already searched and found): Advice on what programs to use that DON'T have the problem of fixed windows Alternative operating system solutions Plugging in an external monitor with larger resolution - I use this option but I need a solution when one is not available, e.g. while travelling etc Advice about not using small screen netbooks - I enjoy the compact convenience of them Advice about change the dpi settings in the Control Panel Display settings Advice about guesswork with the tab key to move the focus the off-screen item I cannot see Thank you in advance.

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• Winamp has slow /skipping video playback on Windows 7

  - by Roy Rico

  Hello, I have Windows 7 x64 (7600 90-day trial version) and Winamp 5.6 installed. When I play a video in Windows Media Player, the video plays smooth, however when I play a video in winamp, the video is mostly ok when played back at the original size (but not completely), but if I play it back in fullscreen, the playback gets really slow. The video's audio track plays just fine. I have a DELL XPS 420 computer (8GB of RAM) with a Nvidia GeForce 8800 CTS 512 video card. I've updated to the latest drivers. I have the default Windows 7 codecs, and the CCCP codec pack which used to be all I needed under Windows XP to play all types of videos. Are the codecs needed for Windows Y the same? What's going on? UPDATE: As suggested, I turned off Aero and winamp ran just fine again. So I just have to wait for winamp to be rewritten to work with the way Vista/Windows 7 runs? UPDATE 2: Winamp has updated their player, and it works great with Windows 7 now.

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• How to allow users to transfer files to other users on linux

  - by Jon Bringhurst

  We have an environment of a few thousand users running applications on about 40 clusters ranging in size from 20 compute nodes to 98,000 compute nodes. Users on these systems generate massive files (sometimes 1PB) controlled by traditional unix permissions (ACLs usually aren't available or practical due to the specialized nature of the filesystem). We currently have a program called "give", which is a suid-root program that allows a user to "give" a file to another user when group permissions are insufficient. So, a user would type something like the following to give a file to another user: > give username-to-give-to filename-to-give ... The receiving user can then use a command called "take" (part of the give program) to receive the file: > take filename-to-receive The permissions of the file are then effectively transferred over to the receiving user. This program has been around for years and we'd like to revisit things from a security and functional point of view. Our current plan of action is to remove the bit rot in our current implementation of "give" and package it up as an open source app before we redeploy it into production. Does anyone have another method they use to transfer extremely large files between users when only traditional unix permissions are available?

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• Issue with InnoDB engine while enabling and [ skip-innodb ]

  - by Ahn

  How to enable InnoDB, which was previously disabled with skip-innodb option. Case 1: Disabled the innodb with skip-innodb option and show engines givens as below. Engine | Support ... | InnoDB | NO ...... Case 2: As I want to enable the innodb, I commanded the #skip-innodb option and restarted. But now the show engines even not showing the InnoDB engine in the list. ? Mysql Version : 5.1.57-community-log OS : CentOS release 5.7 (Final) Log: 120622 13:06:36 InnoDB: Initializing buffer pool, size = 8.0M 120622 13:06:36 InnoDB: Completed initialization of buffer pool InnoDB: No valid checkpoint found. InnoDB: If this error appears when you are creating an InnoDB database, InnoDB: the problem may be that during an earlier attempt you managed InnoDB: to create the InnoDB data files, but log file creation failed. InnoDB: If that is the case, please refer to InnoDB: http://dev.mysql.com/doc/refman/5.1/en/error-creating-innodb.html 120622 13:06:36 [ERROR] Plugin 'InnoDB' init function returned error. 120622 13:06:36 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed. 120622 13:06:36 [Note] Event Scheduler: Loaded 0 events 120622 13:06:36 [Note] /usr/sbin/mysqld: ready for connections. Version: '5.1.57-community-log' socket: '/data/mysqlsnd/mysql.sock1' port: 3307 MySQL Community Server (GPL)

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• SQL 2008 R2 replication error: The process could not connect to Distributor

  - by Lance Lefebure

  I have two servers running SQL 2008 R2 Standard, each with an instance named "MAIN". I have a small test database on my primary server (one table, 13 rows) that I want to replicate to a second server as a proof-of-concept for some larger databases that I want to replicate. I set up the primary server to be a publisher and distributor, and set the database to do transactional replication. I copied the data to the second server via a backup/restore, not via a snapshot (which I'll have to do with the larger databases due to database size and limited bandwidth). I followed the instructions here: http://gnawgnu.blogspot.com/2009/11/sql-2008-transactional-replication-and.html Now on the subscriber, I go under Replication / Local Subscriptions / Right click / Properties on my subscription to the DB. The status of the last synchronization shows a status of: "The process could not connect to Distributor 'PRIMARYSERVER\MAIN'." Data IS replicating from the primary to the secondary. Any record I add on the primary shows up on the secondary server within seconds. Is the Distributor part of the Snapshot system that I'm not using, or is it part of the transaction replication stuff? Thanks, Lance

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• Can I use @import to import Kod's default style sheet into my own?

  - by Thomas Upton

  I understand that Kod is being actively developed and is prone to drastic changes in any area. I would like to modify some small things (like font face and size or certain colors) while still being able to benefit from any changes or updates to the default Kod stylesheet. I thought that I would be able to @import the default stylesheet into my own to achieve this. This is what ~/.kod/custom.css would look like, @import url("file:///Applications/Kod.app/Contents/Resources/style/default.css"); /* Change the default font face and color. */ body { font-family: Menlo, monospace; color: #efefef; } This stylesheet was set with the following defaults command, per the comments at the top of Kod's default CSS file: defaults write se.hunch.kod style/url ~/.kod/custom.css Unfortunately, this didn't work. When I first tried to reload the style, Kod crashed. It opened fine again, but the @import statement wasn't working, and Kod crashed every time I saved the custom.css file. Am I doing something wrong? Did I write my @import statement wrong? Is that not how @import is supposed to work? Did I miss some sort of documentation or Kod Google Groups post that mentions that Kod explicitly disallows this?

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• College network - can I point non-domain student computers to our SUS server?

  - by Joel Coel

  Since I started here 3 months ago, one of the things that's really bothered me about the way this network is setup is something that shows up on the daily bandwidth consumption report. I get a list of top-visited sites by hits and by size, and invariably the top site (to the point that it's bigger than all the other top sites combined) is au.download.windowsupdate.com. We're pulling in ~30GB/day in windows updates. This is every day, not just after a patch Tuesday. After a patch day, it jumps closer to 40GB for a couple days. The key here is that almost none if it is by machines that I'm responsible for. My machines are for the most part fully patched, and when they're not they'll pull from a SUS server, so new updates are downloaded only once. It used to be closer to 50GB/day because most of the machines in our computer labs use DeepFreeze and weren't applying updates correctly, but that's fixed now. So the problem is definitely student-owned machines in the dorms, some of which are re-downloading the same updates in background each day, over and over. I'd love to have these machines start pulling from our SUS server. Then, if they don't ever actually install them at least they're not leeching bandwidth from our public internet connection. Any ideas on how to resolve the situation?

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• Looking to get a small server – need web, PHP, PostgreSQL.

  - by Javawag

  Hi all! I'm looking to get a cheap (low end) server to serve web pages (xHTML/PHP), but I also need to be able to set up PostGreSQL on the system too. Ideally the server would have low power consumption, run Linux (I prefer Mac OS X but a Mac Mini, although the size I'm looking for, is too much money!) and be around £100 (~$160US). EDIT: Just to make it clearer, I'm looking to purchase the server hardware myself – but I want something about Mac Mini sized. I don't want to pay for hosting! Also, quick question – if it's to serve web pages from my home (standard ISP connection, no static IP!), what do I need in place to get this working. I'm guessing I would sign up with some service like no-ip, and register a domain to point to my no-ip address (then install the no-ip software on the server to update that with the current IP). I know the idea of running a server behind a normal ISP connection isn't very elegant, but I'd prefer to have the server where I can see it then pay over the odds for a hosting service where I have little to no control over what happens. Also, I could write my own server software for apps/etc to connect to as well. Anyways I'm rambling! What do you guys think?! Javawag

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• Enterprise class storage best practices

  - by churnd

  One thing that has always perplexed me is storage best practices. Filesystems brag about how they can be petabytes or exabytes in size. Yet, I do not know many sysadmins who are willing to let a single volume grow over several terrabytes. I do know the primary reason behind this is how long it would take to rebuild the array should a drive fail. The more drives in a single LUN, the longer this takes and the greater your risk of losing another drive while the rebuild is taking place. Then there's usage reasons. Admins will carve out a LUN based on how much space they think needs to be allocated to the project. It seems more practical to me for the LUN to be one large array and to use quotas. I understand this wouldn't satisfy every requirement (iSCSI), but I see a lot of NAS systems (NFS) managed this way. I also understand that the underlying volumes can be grown/shrunk as needed quite easily, but wouldn't it be less "risky" to use quotas rather than manipulating volumes and bringing possible data loss into the equation? There may be some other reasons I'm missing, so please enlighten me. Can we not expect filesystems to ever be so large? Are we waiting for the hardware to get faster to cut down on rebuild times?

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• ixgbe driver: Limit the max number of cores

  - by Shellex Wai

  I have a Linux workstation with 48 cores and runs ixgbe driver for fiber interface. And I have to test a project name Netmap on it. NetMap is a high performance network framework for high speed interfaces, which has been ported to Linux recently. For some reasons, I must try it on the machine. So I compile it and follow the instructions to run the test problems, but it doesn't work. I check dmesg and it says: [10399.085736] 794.159015 netmap_set_ringid [486] ringid o4o1 set to all 48 HW RINGS [10399.085742] 794.282011 netmap_obj_malloc [220] netmap_if request size 816 too large I asked the author of netmap for help. He told me that I have too many cores in the machine and it should work if I tell ixgbe use less cores (2 to 4 is ok). I am not familiar to driver development and I don't know how to limit the ring numbers by passing arguments to ixgbe driver. So I check the spec from intel's website but found nothing about it. So I come here for more helps. Thank you.

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• Samba share will not connect (was working yesterday)

  - by David Gard

  I have a CentOS websver with a Samba share set up (\\webserver\websites). I was connected to this share just yesterday without issue, but today my Windows 8 PC will not connect to it. I've also tried making a connection from Windows 7 and Windows XP, all without success. I initially tried restarting my computer, but that did not work. I then tried restarting the Samba service on the webserver (service smb restart), and when that failed I restarted the webserver. All of that was to no avail, and I still cannot connect to the share. The webserver is contactable from my PC (and the others I tried), as the websites it hosts work fine and I'm able to Putty to the server. When connected to the webserver, I can see that Samba is running by using service smb status - service smb status smbd (pid 4685) is running... nmbd (pid 4688) is running... Can anyone please help me to get this share working? Here is my full Samba config (/etc/samba/smb.conf) - [global] workgroup = MYGROUP server string = Samba Server %v log file = /var/log/samba/log.%m max log size = 50 security = user encrypt passwords = yes socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192 local master = no [websites] comment = Websites browseable = yes writable = yes path=/var/www/html/ valid users = dgard

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• Exchange 2003 automatically converts text/plain emails to text/html for IMAP retrieval

  - by wfaulk

  When accessing an Exchange 2003 server via IMAP, emails that were sent as text/plain (and ones that had no MIME encoding specified at all) get automatically converted to multipart/alternative with the original text/plain body and a text/html body. This is … stupid. It doesn't even bother to specify a monospaced font. The new MIME part starts like this: Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> <HTML> <HEAD> <META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; = charset=3Diso-8859-1"> <META NAME=3D"Generator" CONTENT=3D"MS Exchange Server version = 6.5.7654.12"> <TITLE>{{subject}}</TITLE> </HEAD> <BODY> <!-- Converted from text/plain format --> <BR> <P><FONT SIZE=3D2>{{body}} (All the "3D" stuff is quoted-printable encoding for an equals sign; there's nothing wrong on that front, surprisingly.) How can I make this stop?

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• Extract sender activity from postfix logs for auditing user

  - by Aseques

  We have a mail user on our postfix server that was using the company mail to send compromising information to the competence. I've been asked to make a report of the actions for that user in the last time. There are tools like pflogsumm and others that can extract statistic data, but I haven't so far find anything useful to get all the info for a user because the data is in multiple lines. I'd like to get something like this: For the sent mail 11/11/11 00:00:00 [email protected] -> [email protected] 11/11/11 00:00:01 [email protected] -> [email protected] For the received mail 10/10/11 00:00:00 [email protected] -> [email protected] 10/10/11 00:00:01 [email protected] -> [email protected] I know I can do a script by myself, but matching the postfix ID for every mail is not something that can be made with a simple grep, and I've a lot of mail history that I have to recheck distributed among diferent files and so on. The source log is the standard postfix format, for example this one... Sep 13 16:15:57 server postfix/qmgr[18142]: B35CB5ED3D: from=<[email protected], size=10755, nrcpt=1 (queue active) Sep 13 16:15:57 server postfix/smtpd[32099]: disconnect from localhost[127.0.0.1] Sep 13 16:15:57 server postfix/smtp[32420]: 58C3E5EC9C: to=<[email protected]>, relay=127.0.0.1[127.0.0.1]:10024, delay=1.4, delays=0.01/0/0/1.4, dsn=2.0.0, status=sent (250 2.0.0 Ok, id=32697-04, from MTA([127.0.0.1]:10025): 250 2.0.0 Ok: queued as B35CB5ED3D) Sep 13 16:15:57 server postfix/qmgr[18142]: 58C3E5EC9C: removed Sep 13 16:15:57 server postfix/smtp[32379]: B35CB5ED3D: to=<[email protected]>, relay=mail.anothercompany.com[123.123.123.163]:25, delay=0.06, delays=0.03/0/0.01/0.02, dsn=2.0.0, status=sent (250 2.0.0 Ok: queued as 77D0EB6C025) Sep 13 16:15:57 server postfix/qmgr[18142]: B35CB5ED3D: removed

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• Windows media scaling/interpolation method

  - by MichaelH

  Usually in Windows, if videos or other media is upscaled from a certain resolution to a higher resolution (e.g. "monitor size"), a bilinear filtering algorithm or similar is used, such that the upscaled material doesn't look blocky. On my system however, the used interpolation algorithm changed from 'bilinear' to 'nearest neighbor' at some point, with the effect that upscaled videos (e.g. viewed in MPC or WMP, and also Skype video streams) and games (e.g. from PopCap) appear rather blocky. Not sure what the common factor between those is, could be DirectShow(?). I am not aware of having changed any setting that could have affected this state, in fact I am not even aware such a setting exists. I'm guesing that some installed software must have changed something on my computer. My computer is running Windows 7, but I had already experienced the same effect on an XP machine some while ago, where it changed back again to the more pleasing bilinear interpolation after a while, as magically as the first time. What could be wrong with this installation, and how can I change this upscaling interpolation behavior?

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• Creating a partitioned raid1 array for booting a debian squeeze system

  - by gucki

  I'd like to have the following raid1 (mirror) setup: /dev/md0 consists of /dev/sda and /dev/sdb I created this raid1 device using mdadm --create --verbose /dev/md0 --auto=yes --level=1 --raid-devices=2 /dev/sda /dev/sdb This gave a warning about metadata being 1.2 and my system might not boot. I cannot use 0.9 because it restricts the size of the raid to 2TB and I assume grub shipped with latest debian (squeeze) should be able to handle metadata 1.2. So then I created the needed partitions like this: # creating new label (partition table) parted -s /dev/md0 mklabel 'msdos' # creating partitions sfdisk -uM /dev/md0 << EOF 0,4096 ,1024,S ; EOF # making root filesystem mkfs -t ext4 -L boot -m 0 /dev/md0p1 # making swap filesystem mkswap /dev/md0p2 # making data filesystem mkfs -t ext4 -L data /dev/md0p3 Then I mounted the root partition, copied a minimal debian install inside and temporary mounted /dev /proc /sys. Afer this I chrooted to the new root folder and executed: grub-install --no-floppy --recheck /dev/md0 However this fails badly with: /usr/sbin/grub-probe: error: unknown filesystem. Auto-detection of a filesystem of /dev/md0p1 failed. Please report this together with the output of "/usr/sbin/grub-probe --device-map=/boot/grub/device.map --target=fs -v /boot/grub" to I don't think it's a bug in grub (so I didn't report it yet) but a fault of mine. So I really wonder how to properly setup my raid1, everything I tried so far failed.

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• MAMP Pro mysqld won't start on os x lion

  - by Mike

  getting a Start MySQL Failed error in the GUI.. when i attempt to start mysqld from the CLI i get the following error: ? /Applications/MAMP/Library/bin/mysqld 120623 23:12:47 [Warning] Setting lower_case_table_names=2 because file system for /Applications/MAMP/db/mysql/ is case insensitive 120623 23:12:47 [Note] Plugin 'FEDERATED' is disabled. 120623 23:12:47 InnoDB: The InnoDB memory heap is disabled 120623 23:12:47 InnoDB: Mutexes and rw_locks use GCC atomic builtins 120623 23:12:47 InnoDB: Compressed tables use zlib 1.2.3 120623 23:12:47 InnoDB: Initializing buffer pool, size = 128.0M 120623 23:12:47 InnoDB: Completed initialization of buffer pool 120623 23:12:47 InnoDB: highest supported file format is Barracuda. 120623 23:12:47 InnoDB: Waiting for the background threads to start 120623 23:12:48 InnoDB: 1.1.5 started; log sequence number 1595675 120623 23:12:48 [ERROR] /Applications/MAMP/Library/bin/mysqld: unknown option '--skip-locking' 120623 23:12:48 [ERROR] Aborting 120623 23:12:48 InnoDB: Starting shutdown... 120623 23:12:49 InnoDB: Shutdown completed; log sequence number 1595675 120623 23:12:49 [Note] /Applications/MAMP/Library/bin/mysqld: Shutdown complete i have deleted the mysql.pid file located at /application/mamp/tmp/mysql/mysql.pid and i still get the error above. I can't find where MAMP has set --skip-locking set, my.cnf doesnt have it anywhere. Activity monitor gives me a mysqld process running by me, and everytime i KILL the process both via Activity Monitor and via kill =9 pid it starts right back up.. Sampling the process points back to the MAMP mysqld.. wtf?! About to throw MAMP out the window and boot up a VM of CentOS =)

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• External Storage for 2TB of backups and 4TB of data RAID level? HW vs Software?

  - by Jerry Mayers

  I have a Mac Mini set up as a media center/file server. Currently I just have a hodgepodge mess of external drives for storage. I'm maxed out, and I have some new laptops on the way with much larger drives and I need to work out a good storage solution for backing them up, as well as storing media on the server. I need around 2 TB of storage for the time machine backups from my various systems and around 2 TB more for media. I would like to build this to handle around 6 TB total so I have some growing room. Since I'm using a Mac Mini as the server I need to use external enclosure(s) that support USB 2 or Firewire 800 (preferred) or gigabit Ethernet. Performance of the system isn't a huge concern since the majority of the access from other computers is done over 802.11N. I plan on using 2TB drives, for the final version, but initially I'll try and use my existing 2 (1TB) drives + some new 2TB drives, and swap the 1TB ones out as I fill up. As to the actual questions: Should I use hardware RAID in some enclosure? Because if the enclosure dies I have to find an identical one to get to my data right? Wouldn't a software RAID be better as I can use any method of connecting the drives to the system? Remember OS X server is my OS. What if I had to reinstall OS X, can I restore the software RAID easily? What RAID version should I use? For the 2TB used for the time machine disk I don't see why I need RAID here, just a single 2TB drive since its already the backup, but for the remaining 4TB it would be the only copy of the data so I should build some redundancy. I had a RAID 5 setup using a cheep RAID PCI card years ago running RAID 5 in a 2 TB array and when a drive died it wanted 48 hours to rebuild. Is this crazy slow for a setup of this size or is this to be expected? Any suggestions as to drive enclosures?

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• Installing Debian 7.1 on FakeRAID/Intel Z77 results in boot with no grub menu

  - by user198982

  I'm trying to install Debian 7.1 from DVD onto 2x500GB drives which are set up in a FakeRAID mirror using the on-board FakeRAID provided by the Z77 chipset. I have followed the guide here https://wiki.debian.org/DebianInstaller/SataRaid. Namely, I booted into the expert install with the 'dmraid=true' option added, installed onto the RAID mirror which the installer correctly detected, then installed grub2 onto /dev/mapper/.. raid volume. I chose to use LVM (so a boot partition + LVM volume). As per the guide, I have uncommented the "GRUB_DISABLE_LINUX_UUID=true" line in "/etc/default/grub" and ran "update-grub" then "grub-install /dev/mapper/.." (with the right RAID device in the command). However, after I rebooted the system, all I got was a grub console. It did not load the menu. I checked and it seems that it never even generated a menu file. I re-installed Debian a few times since, trying out different options and also a few workarounds people posted online, but to no avail. The best I am getting is a grub console. No menu. Some times it will generate the grub.cfg, some times it won't, depending on the workaround I try. I was wondering if anyone else has experienced this issue. There is no need to preach how I should not use FakeRAID. I have seen others trying to figure this out so I think a resolution to this issue would be of interest to more than just me. Also, I first installed the system onto a small drive for testing something else. I made a backup with Acronis and was able to restore that onto the RAID mirror by using Universal Restore. When I installed it onto a 500GB without RAID, backed up using the same method, then restored onto a RAID volume of the same size, it would not boot and I got grub errors. Weird. I can post more details, just let me know what you want to see.

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