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• SD card mounted as bootable image instead of FAT 32

  - by Benny Wong

  I have an SD card that I recently used to take photos on vacation. It have taken a lot of photos using it and worked fine on the camera. However, I had forgotten that a few months before this trip, I tried to make the SD card a bootable Xubuntu USB drive. So when I plugged my SD card in to copy the photos, the card mounts as the Xubuntu image, rather than mounting as the FAT32 drive with the images on it. The files must still be on the drive. Any ideas on how to fix this? (I'm using Mac OS X) Thanks!

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• Disk / system configuration for log collection / syslog server

  - by Konrads

  I am looking into building a syslog / logging infrastructure and am pondering about some architecture best practices. Essentially, I see that a syslog system needs to support two conflicting workloads: log collection. Potentially massive streams of data need to be written quickly to disks and indexed. log querying. logs will be queried by both fixed fields such as date and source as well as text search. What is the best disk/system setup assuming I'd like to keep it to a single server for now? Should I use SSDs or ramdisk to off-load some processing? some disks in stripe and some in raid5? I am particularly eyeing Graylog2 with ElasticSearch/MongoDB

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• Proxmox - Uploading disk image

  - by davids

  I've got a KVM Virtual Machine in my local PC, and I'd like to copy it to a Proxmox server. According to the docs, I just have to create a new VM on Proxmox and add the existing disk image to it, but how do I upload the image to the server? In the admin panel, if I click in MyStorage - Content - Upload, it just give me options to upload ISOs, VZDump backup files or OpenVZ templates. Would it be enough with a copy using scp? In that case, in which folder?

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• Does the advanced format tool bundled by manufacturers actually do anything which mkntfs doesn't?

  - by neurolysis

  I recently bought a new drive (specifically, a 2TB Samsung Spinpoint) that says on the label that it supports advanced format, and that I should download the tool from their site. Unless I'm missing something, mkntfs has always had its maximum sector size at 4096b: -s, --sector-size BYTES Specify the size of sectors in bytes. Valid sector size values are 256, 512, 1024, 2048 and 4096 bytes per sector. If omitted, mkntfs attempts to determine the sector-size automatically and if that fails a default of 512 bytes per sector is used. Will this tool on Samsung's site do anything other than format the drive in the same way doing mkntfs -s 4K /dev/sdb1 would do? To be specific, I'm intending to use this drive on a machine that will primarily run Windows XP, but I'd rather boot into Linux/BSD and format the disk manually than have bloated software. I do want to have the new AF style sectors though -- that's essential. So if I did the command above, would it have exactly the same effect as using the advanced format tool?

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• Calculate disk space occupied by many .png files

  - by Alexander Farber

  I have 357 .png files located in different sub dirs of the current dir: settings# find . -name \*.png |wc -l 357 settings# find . -name \*.png | head ./assets/authenticationIcons/audio.png ./assets/authenticationIcons/bbid.png ./assets/authenticationIcons/camera.png ./bin/icons/ca_video_chat.png ./bin/icons/ca_voice_control.png ./bin/icons/ca_vpn.png ./bin/icons/ca_wifi.png Is there a oneliner to calculate the total disk space occupied by them (before I pngcrush them)? I've tried (unsuccessfully): settings# find . -name \*.png | xargs du -s 4 ./assets/support/wifi_locked_icon_white.png 1 ./assets/support/wifi_vpn_icon_connected.png 1 ./assets/support/wi_fi.png 1 ./assets/support/wi_fi_conected.png 8 ./bin/blackberry-tablet-icon.png 2 ./bin/icons/ca_about.png 2 ./bin/icons/ca_accessibility.png 2 ./bin/icons/ca_accounts.png 2 ./bin/icons/ca_airplane_mode.png 2 ./bin/icons/ca_application_permissions.png 1 ./bin/icons/ca_balance.png

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• No free disk space ;[

  - by skomak

  Hi I have weird situation because Linux df command says that there is no free disk space [root@backup cache]# df -h Filesystem Size Used Avail Use% Mounted on /dev/sda3 72G 70G 0 100% / /dev/sda1 190M 11M 170M 7% /boot tmpfs 248M 0 248M 0% /dev/shm but du -sh /* says [root@backup cache]# du -sh /* 4.0K /bacula-restores 7.4M /bin 5.4M /boot 3.6T /data 116K /dev 55M /etc 204K /home 76M /lib 16K /lost+found 12K /media 0 /misc 16K /mnt 8.0K /mount 0 /net 8.0K /opt 0 /proc 2.3G /root 32M /sbin 8.0K /selinux 168K /share 8.0K /srv 0 /sys 361M /test 20K /tmp 3.2G /usr 1.5G /var Could you tell me where is a problem? Where is my space? I can't figure it out :(

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• Startup Disk Creator tool for Debian

  - by user61954

  I was trying to create a USB bootable in Debian to install my new system. I couldnt find any easy to use tool in Debian. I tried downloading the hybrid iso image from the Debian site and copied it to the USB using the dd command as said in Debian site. But it didnt boot. Next I used the Startup Disk Creator tool in Ubuntu and it worked like a charm. Is there any similar tool in Debian? I know that there is Unetbootin but its difficult to install

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• S.M.A.R.T - Predictive Failure Count

  - by Bastien974

  I'm monitoring my IBM ServeRAID M5015 controller for RAID status with MegaCLI, I have this on one of the disk : Enclosure Device ID: 252 Slot Number: 6 Enclosure position: 0 Device Id: 14 Sequence Number: 2 Media Error Count: 32 Other Error Count: 0 Predictive Failure Count: 18 Last Predictive Failure Event Seq Number: 8119 PD Type: SAS Raw Size: 279.396 GB [0x22ecb25c Sectors] Non Coerced Size: 278.896 GB [0x22dcb25c Sectors] Coerced Size: 278.464 GB [0x22cee000 Sectors] Firmware state: Online, Spun Up SAS Address(0): 0x5000c50042c319c9 SAS Address(1): 0x0 Connected Port Number: 5(path0) Inquiry Data: IBM-ESXSST9300653SS B6336XN04HC10525B633 IBM FRU/CRU: 81Y9671 FDE Capable: Not Capable FDE Enable: Disable Secured: Unsecured Locked: Unlocked Needs EKM Attention: No Foreign State: None Device Speed: 6.0Gb/s Link Speed: 6.0Gb/s Media Type: Hard Disk Device Drive: Not Certified Drive Temperature :33 Celsius What does this mean exactly ? I can't find an exact description, is there a way to have more details ? The RAID array has the Optimal state. Media Error Count: 32 Predictive Failure Count: 18 Is there a way through the CLI to power-on the front LED so I physically know which disk I need to replace ?

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• How to get partition information from non-booting server?

  - by gravyface

  Need to manually rebuild a mirrored array on a server and am in the process of reinstalling SBS 2003 on it. However, it's a Dell server, and know that there's the Dell FAT32 diagnostics partition, a system partition, and a data partition, but do not know the size of each. Planning on reinstalling SBS 2003, all applications on the server, and then doing a System State restore, but figured that not having the correct partitions will cause some grief: am I right? Almost thinking that the size of the partitions shouldn't matter, but not positive. Question: should I care about the size of the partition? If so, how can I get this partition information from a non-booting drive? We have an Acronis image of the one working disk and the partitions are mounted/viewable in Explorer on a workstation, but I'm not sure where the Logical Disk Manager/Disk Management data is stored and/or if there's a way to retrieve it without having a working Windows installation.

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• Harddrive in the freezer ever work for you?

  - by Stefan Thyberg

  Once upon a time, my little 10 GB drive in my webserver failed and of course I had no backup, teaching me to immediately set up an automatic backup job afterwards. Anyhow, this drive refused to start and as a last-ditch effort I put it in a plastic bag and put it in the freezer overnight, since I had heard somewhere that it might work and I really didn't have any other options. The next day I take it out, immediately plug it in outside the case and lo and behold, the drive works long enough for me to copy my data off it. Have you ever had a similar experience with this method?

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• Suggestion for boot manager in external hard disk

  - by Korrupzion

  Hi, I just bought an 1TB External Hard drive with eSATA, USB, FW400/800 (LaCie if you are interested). I already put the windows 7 installation in a FAT32 active partition so i can plug the HDD via USB, since my notebook or other computers doesn't support boot via eSATA commonly, and it works. Now i want to do more partitions so i'm looking for a way to have a boot manager as active partitions that allows me to boot from different partitions in my HDD (win7, ubuntu installations for example) I want to know if you know any software to do this or you already have this system. Thanks and sorry i have too many grammar errors because english is not my native language :)

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• Best filesystem choices for NFS storing VMware disk images

  - by mlambie

  Currently we use an iSCSI SAN as storage for several VMware ESXi servers. I am investigating the use of an NFS target on a Linux server for additional virtual machines. I am also open to the idea of using an alternative operating system (like OpenSolaris) if it will provide significant advantages. What Linux-based filesystem favours very large contiguous files (like VMware's disk images)? Alternatively, how have people found ZFS on OpenSolaris for this kind of workload? (This question was originally asked on SuperUser; feel free to migrate answers here if you know how).

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• Trouble accessing network drives in Windows 7

  - by Warlax

  Hi, Recently purchased a LaCiE network drive. Connected it to my router, configured it, added a user for myself. Installed the "Network Assistant" that came with it - no problem. Went to My Computer Network, found the network drive - was prompted for a login/password to see the contents, types \user and password (leading slash to get rid of DOMAIN) and accesses contents. There is one open share that I can access/mount without problem and there's another share with my user name as set-up via the network drive's web-based config. Double-clicked on that, prompted again. user/password doesn't work! It says I have no permissions but the user/pass combination is PERFECT. Some Windows Vista posts talk about a Local Security Policy menu - but that's nowhere to be found. Any ideas? (Windows 7 Professional BTW).

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• Disk space mismatch on OS X Server (Leopard)

  - by John Gardeniers

  My Nagios system sent me an alert to inform me that the disk space on one of the drives on our OS X server is very low. When I run df /Volumes/Apps/ I get /dev/disk0s3 117209520 114932472 2277048 99% /Volumes/Apps When I run du -c /Volumes/Apps it reports 11489944 total Why might there be such a vast difference? Even more importantly, how do I find the problem and what can I do about it? I'm essentially just a Windows admin, so am well out of my comfort zone here. I use a Mac but I'm not a Mac admin in any real sense of the word.

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• After repairing permissions, Mac OS X won't boot

  - by Power-coder

  This morning I ran the Repair Permissions command from inside the Disk Utility. Ever since then my MacBook wont move past the splash screen when booting. I've revolted in verbose mode and I see that it is trying to repair the disk but then terminates with 'Unable to repair the volume'. Since then I have tried running the Disk Repair from the Snow Leopard install DVD and it quits with the same error. Is there a way I can repair this thing without reformatting and installing over again? How does something so simple as a permissions repair make the system unbootable like this?

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• Looking for a free or open-source burner emulator [closed]

  - by Jared Harley

  Possible Duplicate: Virtual CDR driver I am looking for a free or open-source virtual CD/DVD emulator to run in a Windows environment. What I want is similar to what SlySoft's Virtual Clone Drive or Daemon Tools provides, but the emulated drive needs to be a burner of some type. The burner should be able to save disc images (.iso, .ccd, etc) to my harddrive - basically, the same as if I burned the files to a CD-R, and then ripped them back to a disc image. I have already looked around some and come across 2 - DVD neXt COPY iTurns and NoteBurner M4P. Both of these programs create a virtual CD-RW drive, but they are integrated into their product (for burning from iTunes to create mp3 files) and cannot create disc images. I am currently writing a piece of software that will have the capability to burn disc images onto CDs/DVDs, and I don't want to end up with a 100 coasters while I'm testing my software. Anyone have any ideas? Related ServerFault queston: Create netbook recovery image without DVD burner (virtual burner?)

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• Disable disk caches in AWS EBS for PostgreSQL?

  - by Alexandr Kurilin

  It's my understanding that, without correctly disabling OS-level and drive-level caching, there is a chance that in case of system failure the Write-Ahead Log might not be saved correctly and in fact might get corrupted, possibly preventing data recovery. I've already made sure that wal_sync_method=fdatasync however I was unable to make any configuration changes with hdparm since I get the following: $ sudo htparm -I /dev/xvdf /dev/xvdf: HDIO_DRIVE_CMD(identify) failed: Invalid argument Looks like that option is not available in the kind of setup you get in EC2. Am I missing anything here? Are there any other obvious caches I have to disable to ensure the WAL's safety?

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• How to recover data from software RAID 5 disk partition

  - by Ali n

  I have CentOS 5.8 on my computer, with 5x 1TB hard drives. I used software RAID. (RAID 1 as a boot partition md0, RAID 0 as a root partition md1 and RAID 5 as /home partition md3). Unfortunately one of these hard drives failed lately and I want to replace it with a new one. I want to know that is it possible to change this hard drive without data loss? The important partition is RAID 5 so in theory if one of hard drives failed I should be able to recover its data without any problem. But in practice how can I do that?

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• Backup Exec backup-to-disk folder creation - Access denied

  - by ewwhite

  I'm having a difficult time creating a backup-to-disk folder in Symantec Backup Exec 12.5 and Backup Exec 2010. The backend storage is a Nexenta/ZFS-based NAS filer sharing the volume via CIFS. I've also seen the issue on other *nix-based NAS devices. I've attempted mapping the drive, providing the full paths to the folder, etc. I can browse to the share just fine from within Windows, but Backup Exec fails to create the B2D folder with different variants of a Unable to create new backup folder. Access denied error. I've attempted creating service accounts in Backup Exec to handle the authentication, but nothing seems to work. What's the key to making this work?

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• Colored blocks on boot

  - by stackzerad

  When my laptop tries to boot right after POST I see colored blocks with flashing symbols in them. I am able to boot from windows PE cd. Tried fixboot and fixmbr with no success. I have also tried replacing boot files (ntldr, io.sys etc..) and removing video card drivers from windows\system32\drivers. The drive is seagate 2.5 ATA 160GB and has one NTFS partition on it. I have already fixed this issue by reformating the drive and reinstalling everything but after couple of weeks I get the same issue again. The diagnostics software shows no bad sectors on it and virus scan didn't find anything. Does anybody have an idea what this might be? UPDATE: tried defragmenting the hard drive just in case, but still no luck

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• How do you passthrough native SATA drives to a guest on ESXi?

  - by John

  I have ESXi 4.0 running on an Intel DX58S0 Mothboardboard with an Intel Core i7 930 processor. VT-d is also enabled. I have three drives in the system, drive 0 is used for ESXi. Drive 1 and 2 contain data from an older machine and show up under the "Storage Adapters" section in configuration. I would like to allow a guest machine to access the data on these drives (as nativly as possible). I have enabled passthrough of the motherboard's built in SATA controller (Intel/Marvell 88SE6121 ). This controller shows up in my guest OS, but the guest shows no drives aside from the normal virtual drive. I have tried a Linux guest and Windows7. I have also configured the host machine to try IDE/RAID/ACHI modes for the SATA controller. Any ideas how I can configure one of my guests to get at the raw data on these drives?

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• Losing partitions after every reboot

  - by Winston Smith

  I have an Acer laptop with one hard disk, which up until yesterday had 4 partitions: Recovery Partition (13GB) C: (140GB) D: (130GB) OEM Partition (10GB) I read that the OEM partition has all the stuff needed to restore the laptop to the factory settings, but since I'd already created restore disks and I needed the space, I wanted to get rid of it. Yesterday, I used diskpart to do that. In diskpart, I selected the OEM partition and issued the delete partition override command which removed it. Then I extended the D: partition into the unused space using windows disk management. Everything worked fine, until I rebooted my laptop, at which point the D: drive vanished. Looking in windows disk management again, I can see that there's an OEM partition of 140GB, which is obviously my D: drive. So I used EASEUS Partition Master and assigned a drive letter to the 'OEM' partition and I was able to access my files again. However, every time I reboot, it reverts back. How do I fix this permanently?

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• Delete the pendrive contents and also trash in Mac OS X?

  - by Warrior

  I am using a MacBook Pro. I copied some data from my pen drive to my Mac and deleted the content by moving it to trash. After that when I see the info of pen drive it give more value than the original value. If I cleaned the content of the trash only I am able to see the correct value of pen drive and able to copy data. Has Mac been designed like that or is there some other way to delete other than using the "move to trash" option? Thanks.

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• Recommendations for stable, reliable flash drives

  - by Josh Kelley

  We're looking to purchase some flash drives for use in some embedded devices. Most of our requirements aren't too different the generic "good, fast" flash drive: reliability is very important, speed is good, and so that the drive will fit, the case shouldn't be too large (so no OCZ Throttles). Consistency is also a major priority; we'd like to be able to buy more or less the same product a year or two from now without having to worry about the manufacturer swapping drive components with less reliable or slower parts. (We've been burned already by our previous manufacturer doing this.) Any recommendations, especially regarding consistency? I can read Ars Technica to get an overview of current models, but what are consistently good models?

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• Bitdefender rescue disk does not show my C drive

  - by Nilesh

  My machine (winXP) is infected with virus and I am unable to start my machine. Therefore I have used BitDefender rescue disk to remove the viruses. But I am not able to see my C drive. All other drivers are able to see and scan. Even after I removed all viruses, my machine is not starting. Giving the same error message. I think due to viruse it is not visible to bitdefender. Please help me out. Appreciate your help.

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