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• Google Drive terminates without error on startup

  - by Iszi

  I've used Google Drive for awhile now, but it won't start up after installing on my latest system re-build. I'm still using the same OS, hardware, and basic software load (antivirus, firewall, etc.) that I have for years during which I had not previously had problems with Drive. OS: Windows 7 Ultimate x64 Google Drive Version: 1.12.5329.1887 Now, whenever I try to run Google Drive, it just spawns two instances of the executable which die shortly after. No error messages are posted to the desktop, and nothing indicating any problem is written to the Event Log. After some research, I've yet to find anyone having the same problem who's found an answer. I did find out how to run Google Drive in diagnostic mode, using the --vv parameter at the command line. After that, I opened up the sync log and got this: 2013-10-31 17:11:24,039 INFO pid=3664 1892:MainThread logging:1600 OS: Windows/6.1.7601-SP1 2013-10-31 17:11:24,039 INFO pid=3664 1892:MainThread logging:1600 Google Drive (build 1.12.5329.1887) 2013-10-31 17:11:24,039 DEBUG pid=3664 1892:MainThread logging:1608 DEBUGGING DUMP is ON. 2013-10-31 17:11:24,051 ERROR pid=3664 1892:MainThread logging:1575 ERROR, UNEXPECTED EXCEPTION 2013-10-31 17:11:24,051 ERROR pid=3664 1892:MainThread logging:1575 [Error 5] Access is denied Traceback (most recent call last): File "<string>", line 232, in Main File "<string>", line 118, in RegisterCustomFileTypes File "P:\p\agents\hpal4.eem\recipes\353983091\base\b\drb\googleclient\apps\webdrive_sync\windows\build\pyi.win32\main\outPYZ1.pyz/windows.registry", line 62, in GetValue WindowsError: [Error 5] Access is denied 2013-10-31 17:11:24,052 INFO pid=3664 1892:MainThread logging:1600 Crash reporting disabled. Ignoring report. 2013-10-31 17:11:24,052 INFO pid=3664 1892:MainThread logging:1600 Exiting with error code: 0 I'm running on an account with Administrator-level permissions, and have even tried using "Run As Administrator" on the EXE. I'm not sure why it's looking for a P:\ drive, as no such volume has ever been mounted on this system. What should I do to try to further troubleshoot, and resolve, this issue?

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• Webcam security camera software that runs as a service

  - by hurfdurf

  I've been looking for Windows webcam software that will run as a Windows service without any user login. The goal is to use the webcam as a cheap security camera and log the results to secure networked storage (windows share, not FTP). The requirements are: Motion detection Video capture Runs as a service (should start recording immediately after reboot) Nice to have: Round-robin storage, e.g. 10Gb limit, oldest files overwritten/deleted when space gets low I've read the other webcam questions but still haven't stumbled across anything suitable. Evaluations thus far: Title MotionDetect Service Snapshots Video SpaceLimit License Yawcam Yes Yes Yes No No GPL WebCam ZoneTrigger Yes No Yes Yes No Commercial Dorgem Yes No Yes Yes No GPL AbelCam Yes No Yes Yes No Commercial Logitech Yes No Yes Yes No Paired with camera IspyConnect Yes No Yes Yes Yes Free SecureCam (SourcefoYes No Yes Yes No GPL AbelCam Yes No Yes Yes No Commercial Active WebCam Yes Yes(?) Yes Yes Volume Free Commercial WebCam Surveyor Yes No Yes Yes No Commercial WebCamsPy NA NA NA NA NA GPL Camera: Logitech Webcam Pro 9000 Windows 7 32-bit WebCamsPy failed to initialize so couldn't be tested So far, the contenders: Active Webcam comes the closest, and claims to run as a service, but i haven't been able to get it to record after a cold boot even though a service is running. Yawcam can be set up as a service but doesn't record video. IspyConnect has exactly the type of space limit I want and looks great, but doesn't run as a service (seems also to be a bit of a cpu hog) Any other suggestions? I'm locked into Windows so can't use linux Motion, which looks almost perfect. Any pointers to rich Windows webcam/motion detection libraries out there that could easily be turned into a command line program would also be appreciated.

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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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• Ubuntu 13.10 - How to disable LVM and cryptsetup? cryptsetup: evms_activate is not available

  - by NeverEndingQueue

  I am trying to remove whole drive encryption from my Ubuntu installation. I've run Ubuntu from Live CD, mounted crypt partition and copied it to another partition /dev/sda3. sudo cryptsetup luksOpen /dev/sda5 crypt1 sudo dd if=/dev/ubuntu-vg/root of=/dev/sda3 bs=1M After that I've run boot-repair: https://help.ubuntu.com/community/Boot-Repair Added entry to /etc/fstab: UUID=<uuid> / ext4 errors=remount-ro 0 1 Of course I've replaced with blkid result of my /dev/sda3. I've also deleted overlayfs and tmpfs lines from /etc/fstab. (I've just compared it to content of /etc/fstab in non-encrypted Ubuntu installation and could not find overlayfs and tmpfs). I've chrooted from LiveCD into my system and rebuilt initramfs: http://blog.leenix.co.uk/2012/07/evmsactivate-is-not-available-on-boot.html I've also removed cryptsetup using apt-get remove. Basically I can easily mount my system partition from Live CD (without setting up the encryption and LVM stuff), but can not boot from it. Instead I see: cryptsetup: evms_activate is not available When I've chosen the Recovery mode I've seen this: Begin: Mounting root file system ... Begin: Running /script/local-top ... Reading all physical volumes. This may take a while ... No volume groups found cryptsetup: evms_activate is not available Begin: Waiting for encrytpted source device ... My /etc/crypttab is empty. I am pretty sure that system tries to find encrypted partition, search for LVMs etc. Do you have ideas what could be the problem or how can I fix it? Thanks

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• ownership of hard drive recoveery of files Windows 7

  - by Jeff

  Here is the issue. I have an old laptop that died that was running xp. I now have a win 7 laptop. I need to get the files off the old drive. Win 7 will not let me take ownership of the drive. I can runn the comand prompt in regular mode and do a dir on the drive that shows up as Q: drive in regular mode. I gives me the volume as c and the serial number. I can not take ownership in regular mode with the comand prompt or other means. Microsoft site says use safe mode with networking. So I go to safe mode the drive shows up as G: in safe mode. I use the comand prompt Takeown /f G: and get the device is not ready error. I am at a loss. All I want is to retrieve my files from this drive. Any ideas or sugestions. I don't see how you can dir and get some info in one mode and not acces it in another. I have to get ownership and permissions fixed to get in the drive to get my files. Thanks in advance. I might add that I am using a usb3.0 to ide/sata cable adapter. Software came with the device but I can't make heads or tails out of the manual to know if any of the software can help me. The soft ware is PCClone Ex lite, and Clone Drive Soft ware

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• External HDD incorrectly detected as internal - how change to enable hot swap/eject?

  - by Sam

  I have win 7 x64 Home Prem. The HDD is a seagate barracuda, 7200.7 ST3120827AS. 3.5", Serial: 3ms006n6, Firmware: 3.42 (no further updates) NexStar CX External case (drivers installed). I have three drives: WD320 with OS installed WD750 data storage (internal) seagate 120 (external) - connected via esata board connected to sata on motherboard (MSI p43 neo) Tried uninstalling HDD in device manager to no effect. Also the internal WD750 is detected as an external drive and win taskbar icon allows for it to be ejected (unlike the seagate). All drives are configured - Online, Simple, Basic, NTFS, Active, Primary Partition (except c drive). The seagate was previously used as a primary disk with XP operating system so I deleted the volume and created/reformatted (not quick). HDD is no longer "Active". But did not fix problem. Background Originally, I installed win 7 with the bios set to IDE and forgot to install the chipset drivers. Then I changed win 7 to install the AHCI drivers, changed the bios to AHCI and rebooted. Win 7 loaded drivers but WD HDD gave problems/crashed. I installed chipset drivers and latest intell storage matrix software thingie (in safe mode). Everything worked fine after that except for the problem of not corrrectly detecting the external drive] I have noticed that under the driver properties (and similarly in the registry) the two drives are configured differently (e.g. in driver details property capabilities for the WD the value is set to 0000006, CM_DEVCAP_REMOVABLE & EJECTSUPPORTED - whereas the seagate shows 0000080 & CM_DEVCAP_SURPRISEREMOVALOK). Any easy way to configure things? I tried physically swapping the sata connections on the mainboard without success So far I have found that a solution to my problem might be to perform some reg changes: How do I remove the option to eject SATA drives from the Windows 7 tray icon?

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• how do you view / access the contents of a mounted dmg drive through TERMINAL hdiutil diskmount

  - by A. O.

  My external USB drive failed. I made a .dmg image file of the drive using disk utility. Later I was not able to mount the .dmg image. I used terminal hdiutil attach -noverify -nomount name.dmg diskutil list diskutil mountDisk /dev/disk4 then received the following message: Volume(s) mounted successfully However, I cant see the drive or access its contents through Finder. DUtility shows the drive as ghost but I still cant mount it using diskutility. Terminal tells me that the drive is mounted and constantly shows it in the diskutil list. pwd is not the mounted .dmg image. I dont know how to enter into the mounted image drive to see its contents. So in case what I said sounds like I see the files in the mounted image no this is not the case. I do not know how to access or even change the pwd within Terminal. I was hoping to see the mounted drive tru finder but I do not see that. So I need help as to how to find a way to access the mounted image drive if it was really mounted. Terminal says that it was and it shows it under diskutil list as a /dev/disk4. Can someone please help me access the files on this drive?

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• Disk doesn't contain a valid partition table

  - by Jeevan Dongre

  I was running a m1.small instance ec2 ubuntu instance. I was running out of disk space, so I upgraded my instance to medium. When I upgraded I actually got 429.5 GB of space and after that I added 10 gb of volume too. When I run the "sudo fdisk -l" command I got this results. Disk /dev/sda1: 8589 MB, 8589934592 bytes 255 heads, 63 sectors/track, 1044 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/sda1 doesn't contain a valid partition table Disk /dev/sda2: 429.5 GB, 429461078016 bytes 255 heads, 63 sectors/track, 52212 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/sda2 doesn't contain a valid partition table Disk /dev/sdf: 10.7 GB, 10737418240 bytes 255 heads, 63 sectors/track, 1305 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 sda1 is the primary parition and sda2 is what I got added upgrading my system to medium. But the problem persists, I am not able to pull the code from git, it is giving me this error. remote: Counting objects: 409, done. remote: Compressing objects: 100% (236/236), done. fatal: write error: No space left on device fatal: index-pack failed

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• how can i move ext3 partition to the beginning of drive without losing data?

  - by Felipe Alvarez

  I have a 500GB external drive. It had two partitions, each around 250GB. I removed the first partition. I'd like to move the 2nd to the left, so it consumes 100% of the drive. How can this be accomplished without any GUI tools (CLI only)? fdisk Disk /dev/sdd: 500.1 GB, 500107862016 bytes 255 heads, 63 sectors/track, 60801 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk identifier: 0xc80b1f3d Device Boot Start End Blocks Id System /dev/sdd2 29374 60801 252445410 83 Linux parted Model: ST350032 0AS (scsi) Disk /dev/sdd: 500GB Sector size (logical/physical): 512B/512B Partition Table: msdos Number Start End Size Type File system Flags 2 242GB 500GB 259GB primary ext3 type=83 dumpe2fs Filesystem volume name: extstar Last mounted on: <not available> Filesystem UUID: f0b1d2bc-08b8-4f6e-b1c6-c529024a777d Filesystem magic number: 0xEF53 Filesystem revision #: 1 (dynamic) Filesystem features: has_journal dir_index filetype needs_recovery sparse_super large_file Filesystem flags: signed_directory_hash Default mount options: (none) Filesystem state: clean Errors behavior: Continue Filesystem OS type: Linux Inode count: 15808608 Block count: 63111168 Reserved block count: 0 Free blocks: 2449985 Free inodes: 15799302 First block: 0 Block size: 4096 Fragment size: 4096 Blocks per group: 32768 Fragments per group: 32768 Inodes per group: 8208 Inode blocks per group: 513 Filesystem created: Mon Feb 15 08:07:01 2010 Last mount time: Fri May 21 19:31:30 2010 Last write time: Fri May 21 19:31:30 2010 Mount count: 5 Maximum mount count: 29 Last checked: Mon May 17 14:52:47 2010 Check interval: 15552000 (6 months) Next check after: Sat Nov 13 14:52:47 2010 Reserved blocks uid: 0 (user root) Reserved blocks gid: 0 (group root) First inode: 11 Inode size: 256 Required extra isize: 28 Desired extra isize: 28 Journal inode: 8 Default directory hash: half_md4 Directory Hash Seed: d0363517-c095-4f53-baa7-7428c02fbfc6 Journal backup: inode blocks Journal size: 128M

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• New PC: win7 install issues with 2x3TB in RAID1

  - by goober

  Background / Components Not sure what I've done wrong. Built one PC before successfully in a similar way but this one seems to be struggling. I have the following components: ASUS P8Z68-V/Pro Gen 3 (updated to latest firmware) 16GB (2x8GB) RAM corsair hx850 power supply 2x3TB drives on the intel z68 controller 1x128GB SSD on the Marvel controller sapphire 7950 The problem I set up my 3 TB disks in RAID1 controller appears to recognize them fine during boot as one 2.7TB raid1 volume windows setup sees two disks, both 746 GB, but will only let me install to one and appears to work fine. windows appears to install fine after installer reboots, I receive "windows failed to start" error referencing code 0xc000000e and "\Windows\system32\winload.exe every time I do an install, a new additional "win7" entry is added to the boot menu; all lead to this error. What I've tried: updated the BIOS to the latest firmware attempted to repair the install tried clearing / removing raid / re-raiding drives tried formatting the drives during install attempted to clear the menu Of entries (can't figure out how to do that) No matter how many times I destroy the raid array, format the disks, etc. the boot entries keep piling up. Any idea where I'm going wrong?

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• Why doesn't NFS recognize a new UID?

  - by user76177

  I have two servers running RHEL6. I have root access to both. The main server, which I will refer to as server, is a database server. The application server, which I will refer to as client, mounts a directory from server via NFS. There is a user, appuser, on both client and server. However, appuser's UID on client is 502. appuser's UID on server is 506. Both users need read and write capability on the NFS share. To facilitate this, I made the share owned by appuser on server. Running id appuser on each yields: uid=506(appuser). Of course, client does not recognize that ownership, since appuser has a different id on client. So I did the following: Changed UID of user in /etc/passwd on client to be 506. Changed ownership of appuser's $HOME on client to be appuser again so that I could log in. Now, when I go to look at the NFS share from the client side, I see that it is owned by 502. 502 is the OLD id for appuser on client. I can't change ownership of the NFS share from client, since that is a volume that physically resides on server. I need to make sure that the NFS share shows ownership of appuser from both server and client. What step have I missed since changing the appuser id on client? NOTE: I have not rebooted client (or anything else.)

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• Sending e-mail on behalf of our customer(s), with Postfix

  - by NathanE

  We send e-mail on behalf of our customers, via our own SMTP services. It's always been a problem for us because usually our "spoofing" of their source address results in the mails being caught in spam traps. This hasn't been a problem in the past due to the small volume and low importance of these mails that we sent. However this requirement has recently changed and we need to fix this issue. We realise that fundamentally our application is sending e-mail incorrectly, as per this post: Send email on behalf of clients However, we would like to resolve the problem at the SMTP server level. We have deployed a server running Postfix. Is it possible to have Postfix automatically adjust the mail headers so that we get this "Sent on behalf of" behaviour? I figure it should just be a case of Postfix noticing that the FROM address is the spoofed (i.e. a domain that is not mentioned in its config anywhere) and therefore inject/replace the appropriate headers to get the desired effect. Thanks.

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• Using Truecrypt to secure mySQL database, any pitfalls?

  - by Saul

  The objective is to secure my database data from server theft, i.e. the server is at a business office location with normal premises lock and burglar alarm, but because the data is personal healthcare data I want to ensure that if the server was stolen the data would be unavailable as encrypted. I'm exploring installing mySQL on a mounted Truecrypt encrypted volume. It all works fine, and when I power off, or just cruelly pull the plug the encrypted drive disappears. This seems a load easier than encrypting data to the database, and I understand that if there is a security hole in the web app , or a user gets physical access to a plugged in server the data is compromised, but as a sanity check , is there any good reason not to do this? @James I'm thinking in a theft scenario, its not going to be powered down nicely and so is likely to crash any DB transactions running. But then if someone steals the server I'm going to need to rely on my off site backup anyway. @tomjedrz, its kind of all sensitive, individual personal and address details linked to medical referrals/records. Would be as bad in our field as losing credit card data, but means that almost everything in the database would need encryption... so figured better to run the whole DB in an encrypted partition. If encrypt data in the tables there's got to be a key somewhere on the server I'm presuming, which seems more of a risk if the box walks. At the moment the app is configured to drop a dump of data (weekly full and then deltas only hourly using rdiff) into a directory also on the Truecrypt disk. I have an off site box running WS_FTP Pro scheduled to connect by FTPs and synch down the backup, again into a Truecrypt mounted partition.

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• Can ZFS ACL's be used over NFSv3 on host without /etc/group?

  - by Sandra

  Question at the bottom. Background My server setup is shown below, where I have an LDAP host which have a group called group1 that contains user1, user2. The NAS is FreeBSD 8.3 with ZFS with one zpool and a volume. serv1 gets /etc/passwd and /etc/group from the LDAP host. serv2 gets /etc/passwd from the LDAP host and /etc/group is local and read only. Hence it doesn't not know anything about which groups the LDAP have. Both servers connect to the NAS with NFS 3. What I would like to achieve I would like to be able to create/modify groups in LDAP to allow/deny users read/write access to NFS 3 shared directories on the NAS. Example: group1 should have read/write to /zfs/vol1/project1 and nothing more. Question The problem is that serv2 doesn't have a LDAP controlled /etc/group file. So the only way I can think of to solve this is to use ZFS permissions with inheritance, but I can't figure out how and what the permissions I shall set. Does someone know if this can be solved at all, and if so, any suggestions? +----------------------+ | LDAP | | group1: user1, user2 | +----------------------+ | | | |ldap |ldap |ldap | v | | +-----------+ | | | NAS | | | | /zfs/vol1 | | | +-----------+ | | ^ ^ | | |nfs3 |nfs3| v | | v +-----------------------+ +----------------------------+ | serv1 | | serv2 | | /etc/passwd from LDAP | | /etc/passwd from LDAP | | /etc/group from LDAP | | /etc/group local/read only | +-----------------------+ +----------------------------+

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• Looking for a software / something to automate some simple audio processing

  - by Daniel Magliola

  I'm looking for a way to take a 1-hour podcast MP3 file and split it into several several 2-minute MP3s. Along the way, I'd like to also do a few things like Amplify the volume. The problem I'm solving is that I have a crappy MP3 player that won't let me seek forward or backward, nor will it remember where I left it when I turn it off, plus, I listen to these in a seriously high-noise situation. Thus, I need to be able to skip forward in large chunks (2-5 minutes) to the point where I left it. Is there any decent way to do this? Audacity doesn't seem to have command-line capabilities. I'm willing to write some code, for example, to call something over the command line and get how long the MP3 file is, to later know how many pieces i'll have, and then say "create an MP3 with 0:00 to 2:00", "create an MP3 with 2:00 to 4:00", etc. I'm also willing to pay for the right tools if necessary. I also don't care how slow this runs, as long as I can automate it :-) I'm doing this on Windows. Any pointers / ideas? Thanks!

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• Dead Linux server - need help and options

  - by Choi S.

  All, I have a Dell PE 1950 w/ 2 SATA drives in a software RAID1. OS is CentOS 5.5 (2.6.18.x). Starting this afternoon we received HW errors (something on the bus is bad, E171F) and the machine became unresponsive. We hard booted and it came back up for about 5 hours but then it happened again. I'm trying to figure out our options. Unfortunately we do not have similar hardware but I have a small desktop that I can use. I was contemplating putting one of the drives into the desktop and then starting it up. My goal was to then P2V it using Vmware converter but apparently the free v5.x doesn't support hot cloning/converting on a RAID volume, only the Enterprise 4.x version of Converter does. My questions are: 1.) Is putting a single drive out of a RAID1 pair into another piece of HW is safe? Based on my research and understanding it appears to be but would like confirmation. 2.) Is there any work around to the Vmware Converter not supporting RAID volumes during a hot clone/convert session? 3.) Are there other options I'm overlooking? Thanks in advance for reading and responding. --Choi S.

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• No partition on USB Flash Drive?

  - by Skytunnel

  A friend gave me a corrupted USB memory stick to try recovery data from. But I've had some unusual results, so thought I'd share to see if anyone is familiar with this problem... First off I just tried opening from my own PC. Windows prompted to Format the drive, which I of course declined Downloaded TestDisk to anaylsis the drive. And right away I noticed something strange, on the listed drives it comes up as Disk /dev/sdc - 6144 B - USB Flash Drive That's right, the first USB flash drive smaller than a floppy disk!? Moving on anyway... first anaylsis comes up with: Partition sector doesn't have the endmark 0xAA55 TestDisk's Quick Search gave no results, moved on to Deeper Search: No partition found or selected for recovery This left me stumped. I tired a couple of other programs with no success I did manage to get a backup image, but it was just as small as TestDisk indicated, so nothing of use on it After a few hours trying various suggestions from other sources, I gave in and just tried formatting the drive. But returned the message: Windows was unable to complete the format. From googling that, the suggestion was to delete the partition. But there is no partition to delete in this case. most recently I've tried formatting from cmd, and got this result: Format D: /FS:FAT32 The type of the file system is RAW The new file system is FAT32 Verifying 0M 11 bad sectors were encountered during the format. These sectors cannot be guaranteed to have been cleaned The volume is too small for FAT32 Anyone got any suggestions? UPDATE: As per suggestion from @Karen, I tried running a CLEAN from DISKPART, results as follows DiskPart has encountered an error: The request could not be preformed because of an I/O device error.

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• Reusing Raid 5 Drive?

  - by User125

  We have two servers (ML530 G2 and DL380G2) w/ identical HP 10K RPM SCSI drives w/ a raid 5. One is decommissioned and the other will be decommissioned shortly. However, one of the drives on the production server had a drive failure. My hope was to take one of the drives from the decommissioned server and pop it into the production server. Both are running RAID 5. I broke the array on the decomm. server. To my knowledge, that should have wiped out all the volume and partition information. However, I do not know if it is safe to then take a drive from the decomm'ed server and replace the failed drive. Will the existing array see it as a replacement drive, wipe it and rebuild? Or will it fail because it was used in an array before. Are there any remnant data that resides on the drives after deleting a raid 5 array? These servers are 10-15 years old, so we're just trying to keep them alive until we decommission it. I'm not looking to pay a premium to find a vendor that still sells replacement drives for this system.

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• Why is my rsync so slow?

  - by iblue

  My Laptop and my workstation are both connected to a Gigabit Switch. Both are running Linux. But when I copy files with rsync, it performs badly. I get about 22 MB/s. Shouldn't I theoretically get about 125 MB/s? What is the limiting factor here? EDIT: I conducted some experiments. Write performance on the laptop The laptop has a xfs filesystem with full disk encryption. It uses aes-cbc-essiv:sha256 cipher mode with 256 bits key length. Disk write performance is 58.8 MB/s. iblue@nerdpol:~$ LANG=C dd if=/dev/zero of=test.img bs=1M count=1024 1073741824 Bytes (1.1 GB) copied, 18.2735 s, 58.8 MB/s Read performance on the workstation The files I copied are on a software RAID-5 over 5 HDDs. On top of the raid is a lvm. The volume itself is encrypted with the same cipher. The workstation has a FX-8150 cpu that has a native AES-NI instruction set which speeds up encryption. Disk read performance is 256 MB/s (cache was cold). iblue@raven:/mnt/bytemachine/imgs$ dd if=backup-1333796266.tar.bz2 of=/dev/null bs=1M 10213172008 bytes (10 GB) copied, 39.8882 s, 256 MB/s Network performance I ran iperf between the two clients. Network performance is 939 Mbit/s iblue@raven $ iperf -c 94.135.XXX ------------------------------------------------------------ Client connecting to 94.135.XXX, TCP port 5001 TCP window size: 23.2 KByte (default) ------------------------------------------------------------ [ 3] local 94.135.XXX port 59385 connected with 94.135.YYY port 5001 [ ID] Interval Transfer Bandwidth [ 3] 0.0-10.0 sec 1.09 GBytes 939 Mbits/sec

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• I (stupidly) converted a TrueCrypt encrypted disk to GPT in Disk Management: now TrueCrypt won't mount it

  - by asilentfire

  Backstory: After moving a Macrium Reflect disk image from my TrueCrypt external drive (with whole disk encryption) onto a unencrypted drive and using Windows PE with Macrium Reflect to restore my internal disk to the recovery image on the external unencrypted drive, my Windows 8 failed to boot. I then went back and also recovered the System Partition (looking now, it is currently EFI), but I still couldn't boot into my backup.. I was in a hurry to get online for something so I just did a clean install of Windows 8, without the backup.. After I installed Windows 8, I went into Disk Management out of curiosity to see if there were other partitions with Windows 8 that Macruim might have missed, and there is (by default) a Recovery Partition of 100MB. My memory of this is hazy, as I was trying to get up and running for an exam at 4 AM: Something in Disk Management prompted me to convert my encrypted external drive to GPT.. I have no idea why I did this, but I went ahead and allowed it to convert my TrueCrypt drive to GPT. Now, I can't mount the drive in TrueCrypt.. Disk Management sees it as Disk 1, Basic, and Unallocated. I tried converting it back to MBR with Disk Management, but no dice with TrueCrypt :( If I try to mount the disk in TrueCrypt I get the message: Incorrect password or not a TrueCrypt volume I should never have messed with a Truecrypt drive in Disk Management, but I did. I have important college work in that drive, and fear I have lost it forever. PLEASE HELP

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• Netbook thinks it is a desktop

  - by Narcolapser

  Question: Are, and if so what, there packages for download that I can get netbook to understand it is not a desktop and that it is a netbook. Info: I'm running an Acer Aspire One with ubuntu desktop 9.10. I tried Ubuntu Netbook Remix first but it has graphics issues with the aspire one. So I changed to Ubuntu Desktop. It was the only distro (after debian, centOS, Fedora, and Knoppix all failed me) that I managed to get working. The only thing is that it is having issues doing things that a netbook/laptop should be doing. most notably is that it will run it's battery dead if I close the screen and throw it into my back pack. It seems to just stay fully on and runs it's self to death. also it will lock up some times if I close the screen and come back to it 10 or 20 minutes later. It also won't retain volume settings when I reboot, as well as screen brightness. and just a couple of other things that I can't quite put my finger on, but just seem amiss. like I said, Essentially my netbook thinks it is a desktop, how can I fix this? ~N

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• Microphone doesn't work

  - by mandy

  I'm having a trouble with my built in microphone. Even if I use headphone with mic, it doesn't really work. The weird thing is, if I clap the green lines of the speaker icon jumps, but if I speak it doesn't. I have also tried some recordings, but I can not hear myself and adjusting the volume didn't help at all. I tried to restore it, still no change. I have updated it in the device manager, but it said there that it's up to date and the devices are working properly. Until I decided to recover the whole system (wherein I pressed zero and switch on button) to my surprise, the settings became different, most programs were deleted, even my files. It's like it was formatted and I'm so sad that the mic was not fixed. I really don't know what to do now. My laptop model is Toshiba satellite m840. I want to it return to its settings/set up just before I Recover the system and bring back all the programs that we're installed and of course, most of all, to fix my microphone so I can use Skype again and other video calling application.. I hope someone could help me. Thanks a lot!

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• How to fix a damaged/corrupted NTFS filesystem/partition without losing the data on it?

  - by Gareth

  I was going to install Fedora 15 along side my Windows 7 Starter on my Acer Apire One D255E and at some point during the resizing of the NTFS partition (the one with Windows on it) the setup failed. Now I cannot access this partition from any OS. When I tried to access it from a Fedora install running on a USB flashdrive I get this error: Error mounting: mount exited with exit code 12: Failed to read last sector (452534271): Invalid argument HINTS: Either the volume is a RAID/LDM but it wasn't setup yet, or it was not setup correctly (e.g. by not using mdadm --build ...), or a wrong device is tried to be mounted, or the partition table is corrupt (partition is smaller than NTFS), or the NTFS boot sector is corrupt (NTFS size is not valid). Failed to mount '/dev/sda5': Invalid argument The device '/dev/sda5' doesn't seem to have a valid NTFS. Maybe the wrong device is used? Or the whole disk instead of a partition (e.g. /dev/sda, not /dev/sda1)? Or the other way around? It doesn't make a lot of sense to me but I was really hoping it would to someone and they can give me a way to restore the partition without losing everything on it (I have a lot of important notes from various classes on there)? Cheers.

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• Assembling Software RAID in Live CD for data recovery

  - by Maletor

  I need help recovering some data that's on my RAID which is on a LVM on my server running Ubuntu. What happened was I deleted the logical volume that controlled my swap space which was on a partition on drives sda2, sdb2, sdc2, and sdd2 in RAID1. This foobared my whole system for one reason or another. Booting leave me with grub rescue and an error saying that it is an unknown filesystem. When I boot to a live cd I can see my RAID arrays and I can even start them up. However, it doesn't appear to mount them anywhere so I can't see the data. I am in the live cd now and I have done sudo apt-get install mdadm lvm2 so it should be mounting them correctly. I just can't see why it wouldn't. Please any help is appreciated here. Here is some output. By the way, there are 3 RAIDs, 1) /boot 100mb RAID1, 2) swap 10gb RAID1, 3) root 990GB RAID5 ubuntu@ubuntu:~$ df -h Filesystem Size Used Avail Use% Mounted on aufs 124M 101M 18M 86% / none 2.0G 324K 2.0G 1% /dev /dev/sde1 2.0G 826M 1.2G 42% /cdrom /dev/loop0 667M 667M 0 100% /rofs none 2.0G 164K 2.0G 1% /dev/shm tmpfs 2.0G 28K 2.0G 1% /tmp none 2.0G 92K 2.0G 1% /var/run none 2.0G 0 2.0G 0% /var/lock none 2.0G 0 2.0G 0% /lib/init/rw /dev/md1 91M 73M 15M 84% /media/5ac3dbf1-a6c5-409c-96ae-edc6e27992c7 ubuntu@ubuntu:~$ cat /etc/fstab aufs / aufs rw 0 0 tmpfs /tmp tmpfs nosuid,nodev 0 0 /dev/sda2 swap swap defaults 0 0 /dev/sdb2 swap swap defaults 0 0 /dev/sdc2 swap swap defaults 0 0 /dev/sdd2 swap swap defaults 0 0

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• Windows Home Server 2011, No disks "suitable for a backup destination"

  - by Scott Beeson

  I recently installed Windows Home Server 2011 and love it. However, when I try to set up server backups, it says no suitable disks are available. Initially, before I set up my RAID, it found one of my twin drives and said it would work. Once I set up the mirroring, that one is no longer available (obviously). However, I have an internal SATA 1TB drive and an external USB2.0 1TB drive hooked up. Both are recognized by Disk Management. WHS11 still says nothing suitable for backups. The two drives details are as follows: Edit to clarify: The system partition is on Disk 0, not listed below. The two below are the two that SHOULD be available for system backups. Disk 1: Dynamic "Data" (D:) 931.51 GB NTFS, Healthy Disk 3: Basic 200 MB Healthy (EFI System Partition) "Backup" 930.66 GB NTFS, Healthy (Primary Partition) What's a bit odd is that in Disk Management the "Backup" volume does not show a drive letter, even though I assigned Z: (which is reflected in "My Computer". I also cannot make this a dynamic disk as it says it's unsupported by the device.

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