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• Can't open any of my drives/devices(not USB drive)

  - by Anontu

  I can't open any of my computer drives (:c/,:d/.....) Every time i tried to open the drives, the following notice appeared: (i'm new in Ask Ubuntu,so,i can't upload the snapshot,i need 10 reputations to do that) **Unable to access "__ Volume"** error mounting/dev/sda7at/media/MyPC/__Volume:Command-Line 'mount-t "ntfs"-o "uhelper=udisk2,nodev,nosuid,uid=1000,gid=1000,dmask=0077,fmask=0177""/ dev/sda7""/media/MyPC/__Volume"' exited with non-zero exit status 14:The disk contains an unclean file system (0,0).| Metadata Kept in Windows cache,refused to mount. Failed to mount '/dev/sda7':Operation not permitted The NTFS partition is in an unsafe state.Please,resume and shutdown Windows fully(no hibernation or fast restarting),or mount the volume read-only with the 'ro' mount option. I have Windows side by side Ubuntu 13.04 in my computer and i have done (like-Shutting down Windows properly...) things as these in the notice. But it's not working.

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• HP DL 380G7 Raid swap drives

  - by dean

  disks 0 and 1 are raid redundant (OS) and the remaining 6 drives are in raid 5 I believe. i would like to pull out disks 0 and 1 and install new drives to build a new OS. I need to be able to reinsert the old drives and reboot back to the original OS. (swap) I had a serious problem in the past attempting this. does the raid require (look for) the drives based on a serial number or something? just dont want to lose data. thanks

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• Optimal disk partitions for database setup (15 Drives)

  - by Jason

  We are setting up a new database system and have 15 drives to play with (+2 on-board for the OS). With a total of 15 drives would it be better to setup all 14 as one RAID-10 block (+1 hot spare) OR split into two RAID-10 sets one for Data (8 disks) and one for logs/backups (6 disks). My question boils down to the following: is there a specific point where having more drives in a RAID-10 setup will out preform having the drives broken into smaller RAID-10 sets.

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• downsides to running RAID on unmatched drives?

  - by NoCarrier

  I've got some generic RAID controller built into my motherboard and I want to build either a RAID 5 or RAID 0+1 array. What are the disadvantages of running unmatched drives? Like 4 different brand 7200rpm 500gb drives? This would determine whether I look around for whatever used drives I could get my hands on vs. paying extra for a set of matched identical drives.

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• GRUB-2 Bootloader fails to load for lack of floppy drive. Ubuntu 10.4 & Windows XP

  - by kammer

  2010.07.21 while trying to install Ubuntu 10.4 Hello all, I've been trying to install Ubuntu 10.04 on my Dell workstation and am unable to get the Grub-2 bootloader to load properly. It seems to be failing for lack of a floppy drive on the system resulting in an error message that reads : error: fd0 cannot get C/H/S values. I've gone through the Grub-2 page at https://help.ubuntu.com/community/Grub2 to no avail and other sources having similar problems have likewise turned up no solutions. I would certainly appreciate any insight, here's the background: A while back I was trying to install a different version of Linux and had the same problems, then had to set the project aside for a bit. I don't think this has anything to do with Linux or Ubuntu per se, but rather Grub. The system is an old (4-5 years) Dell workstation that has one drive (128 GB) set up for Windows XP and a second new drive (500GB) which I installed for Linux. There is a DVD/CD drive and the system contains no floppy drive at all. In one attempt to get this working I tried modifying the BIOS to indicate there was a floppy drive - this created a failure earlier in the chain with the BIOS failing to load properly, not unexpected, just a shot in the dark at that point. At the moment I am considering just running out to buy and install a cheap floppy drive to see if that helps. I'll never use the thing though so I'd rather find a solution that doesn't require me to spend money on useless hardware. In any case, here's the /boot/grub/grub.cfg contents: # # DO NOT EDIT THIS FILE # # It is automatically generated by /usr/sbin/grub-mkconfig using templates # from /etc/grub.d and settings from /etc/default/grub # ### BEGIN /etc/grub.d/00_header ### if [ -s $prefix/grubenv ]; then load_env fi set default="0" if [ ${prev_saved_entry} ]; then set saved_entry=${prev_saved_entry} save_env saved_entry set prev_saved_entry= save_env prev_saved_entry set boot_once=true fi function savedefault { if [ -z ${boot_once} ]; then saved_entry=${chosen} save_env saved_entry fi } function recordfail { set recordfail=1 if [ -n ${have_grubenv} ]; then if [ -z ${boot_once} ]; then save_env recordfail; fi; fi } insmod ext2 set root='(hd1,1)' search --no-floppy --fs-uuid --set fbebde47-f488-41b0-9480-337802ecb988 if loadfont /usr/share/grub/unicode.pf2 ; then set gfxmode=640x480 insmod gfxterm insmod vbe if terminal_output gfxterm ; then true ; else # For backward compatibility with versions of terminal.mod that don't # understand terminal_output terminal gfxterm fi fi insmod ext2 set root='(hd1,1)' search --no-floppy --fs-uuid --set fbebde47-f488-41b0-9480-337802ecb988 set locale_dir=($root)/boot/grub/locale set lang=en insmod gettext if [ ${recordfail} = 1 ]; then set timeout=-1 else set timeout=10 fi insmod play play 480 440 1 ### END /etc/grub.d/00_header ### ### BEGIN /etc/grub.d/05_debian_theme ### set menu_color_normal=white/black set menu_color_highlight=black/light-gray ### END /etc/grub.d/05_debian_theme ### ### BEGIN /etc/grub.d/10_linux ### menuentry 'Ubuntu, with Linux 2.6.32-21-generic' --class ubuntu --class gnu-linux --class gnu --class os { recordfail insmod ext2 set root='(hd1,1)' search --no-floppy --fs-uuid --set fbebde47-f488-41b0-9480-337802ecb988 linux /boot/vmlinuz-2.6.32-21-generic root=UUID=fbebde47-f488-41b0-9480-337802ecb988 ro quiet splash initrd /boot/initrd.img-2.6.32-21-generic } menuentry 'Ubuntu, with Linux 2.6.32-21-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os { recordfail insmod ext2 set root='(hd1,1)' search --no-floppy --fs-uuid --set fbebde47-f488-41b0-9480-337802ecb988 echo 'Loading Linux 2.6.32-21-generic ...' linux /boot/vmlinuz-2.6.32-21-generic root=UUID=fbebde47-f488-41b0-9480-337802ecb988 ro single echo 'Loading initial ramdisk ...' initrd /boot/initrd.img-2.6.32-21-generic } ### END /etc/grub.d/10_linux ### ### BEGIN /etc/grub.d/20_memtest86+ ### menuentry "Memory test (memtest86+)" { insmod ext2 set root='(hd1,1)' search --no-floppy --fs-uuid --set fbebde47-f488-41b0-9480-337802ecb988 linux16 /boot/memtest86+.bin } menuentry "Memory test (memtest86+, serial console 115200)" { insmod ext2 set root='(hd1,1)' search --no-floppy --fs-uuid --set fbebde47-f488-41b0-9480-337802ecb988 linux16 /boot/memtest86+.bin console=ttyS0,115200n8 } ### END /etc/grub.d/20_memtest86+ ### ### BEGIN /etc/grub.d/30_os-prober ### menuentry "Microsoft Windows XP Home Edition (on /dev/sda1)" { insmod ntfs set root='(hd0,1)' search --no-floppy --fs-uuid --set 6ef0d4b4f0d4842d drivemap -s (hd0) ${root} chainloader +1 } ### END /etc/grub.d/30_os-prober ### ### BEGIN /etc/grub.d/40_custom ### # This file provides an easy way to add custom menu entries. Simply type the # menu entries you want to add after this comment. Be careful not to change # the 'exec tail' line above. ### END /etc/grub.d/40_custom ### Thoughts anyone? Thanks in advance.

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• ubuntu automount: only mounting drives as root?

  - by glisignoli

  I'm sharing the /mount dir with smb so users on my network can access use drives added to my linux box. Users are able to read files but not write, modify or delete files or directories. I'm using ubuntu 10.04 server edition with halevt installed for usb auto mounting. Afaik halevt is automounting the drives to /media/ but the drives are showing up as: drwxrwxr-x 1 root root 20480 2010-12-29 20:40 disk drwxrwxr-x 1 root root 24576 2010-12-21 17:20 Sparta mount gives me: /dev/sda1 on /boot type ext2 (rw) /dev/sdb1 on /media/disk type fuseblk (rw,nosuid,nodev,sync,allow_other,blksize=4096,default_permissions) /dev/sdc1 on /media/Sparta type fuseblk (rw,nosuid,nodev,sync,allow_other,blksize=4096,default_permissions) When I umount the drives, the folders /media/disk and /media/Sparta are both removed. I tried changing the permissions with chown to nobody:nogroup but it doesn't work (which I assume is because they are ntfs drives).

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• SQL Server: One 12-drive RAID-10 array or 2 arrays of 8-drives and 4-drives

  - by ben

  Setting up a box for SQL Server 2008, which would give the best performance (heavy OLTP)? The more drives in a RAID-10 array the better performance, but will losing 4 drives to dedicate them to the transaction logs give us more performance. 12-drives in RAID-10 plus one hot spare. OR 8-drives in RAID-10 for database and 4-drives RAID-10 for transaction logs plus 2 hot spares (one for each array). We have 14-drive slots to work with and it's an older PowerVault that doesn't support global hot spares.

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• How to show disconnect network drives

  - by Jake

  Windows 7 and Vista laptops in my company domain has network drives set up by Win2k8 Server GPO. Normally, when the laptops has ethernet cable plugged in before boot, the network drives connect and appear as expected at the end of startup sequence. However, when the laptop has ethernet cable unplugged, the network drives are not connected, which is fine, but the disconnected icons disappear as well. i.e. the drives are not set up. At the end of the startup sequence, upon reaching desktop, the wireless adapters will connect to the network and the laptop will be able to find the network drive. Hence I want the drives to be setup nonetheless, so that the next attempt to connect, say, via a desktop shortcut, will reestablish the network drive connection. How can this be done?

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• How to set default permissions for automounted FAT drives in Ubuntu

  - by piman

  I've got many FAT32 drives that I'd like to mount in Ubuntu such that they have permission mode 700 for directories and 600 for all other files. By default, they have 755 for all files, which is not particularly useful since almost no non-directories should be executable, and it screws up version control repos hosted on the drives. "Back in the day" I would have had the drives listed in /etc/fstab with the umask/dmask I want and there was no such thing as a default. These days, drives automount under their volume names. Which is great, except now I have no idea how to set the default. I have tried changing the /system/storage/default_options/vfat/mount_options gconf key with no apparently effect. It was 077 initially but the mounted drive reflected a default of 022; changing it and re-inserting the drives resulted in the files still having permission bits of 755.

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• Transfer Raid Drives to External Enclosure

  - by dubbeat

  I have 2 raid disks (a grand total of 360GB) in my laptop. I'm fast running out of space and want to install new drives. I've a pretty good idea how to do this. My question is what can I do with the drives that I remove? I've got lots of media files on these drives that I'd like to keep and maybe transfer back onto my laptop once I have the new drives installed. Bearing in mind that I know next to nothing about hardware how do you suggegst I go about reusing the removed drives somehow? Thanks,

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• Certain drives in RAID 5 set intermittently are not recognized

  - by hydroparadise

  I have a curious problem in that 1 (sometimes 2) drives do not get recognized in a RAID 5 set. The server is getting rather old at 5 to 6 years, but still seems to function well once the machine sees all drives. So that leaves me with three areas to consider: the motherboard, the SATA RAID card, or the individual hard drives themselves. I am leaning toward the RAID card, but have not had much dealings with RAID cards. What would cause individual drives not to be recognized in the set? If it was the card, I would think that it would be all or nothing. If it were a single drive, is it possible that it would only work sometimes? The only other thing to consider is that that they are different drives (Seagate and Western Digital) but all around 80 GB. SATA RAID controller is 3ware Escalade 8506-4LP Motherboard is a SuperMicro P4SPA+ Am open and available for more details if needed...

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• Server drives: 2.5" SCSI less reliable than 3.5" ?

  - by Bill

  Just had an HP 2.5" SAS 10k drive fail on a RAID5 array after about 2.5 years. It made me wonder if this was a fluke or an indication that 2.5" drives are less reliable than 3.5" SAS drives. I've had many 3.5" SAS drives running for many years without any issues (knock on wood). I would think that smaller drives would generate less heat and therefore be more reliable, but couldn't find any evidence of this. I realize all drives will eventually fail and that it's a crap shoot with any particular model, but was hoping someone could point out some related studies or comment on the SCSI drive sizes they've found to be most reliable in servers. Thanks.

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• mirroing hard drives of different sizes

  - by user30472

  I have a dell server with two 18 gig drives in a Raid 1 config. I want to replace the drives with 400 gig drives. If I break the mirror and then remove one of the 18g drives, insert a 400g and create the mirror, then do the same process again with the other 400g drive, what will I have? I would like to think I would have a new 400g raid 1 drive. But I seem to remember that this process might result in only 18g of useable space on the 400g drives. Anyone know for sure? Thank

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• Am I running out of memory or do I have two logical drives instead of one

  - by user30904

  I did a complete reinstall of Ubuntu 13.04 a couple of months ago. Since then, I have switched out my motherboard with another. I kept the same hard drive. I just did an upgrade to 13.10. Recently, after this install, I keep getting the message that I'm running out of memory. I just checked my system usage and was surprised by what I found. I believed that I installed Ubuntu as a fresh install but when I check the system usage, it seems like there are two logical drives. I just did the basic install, so I was only expecting to see one partition but instead I see two. One is a small 300mb partition, the other is a 300gb partition I was expecting. Can anyone tell me if I have two partitions and/or logical drives and if so how I can fix this? I seem to have been running on the smaller drive and now I'm obviously out of space. I want to be able to use the bigger one at least.

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• Lost all non-linux hard drives

  - by Rick

  I've somehow lost access to all my non-linux drives. I'm not sure how. I have two other hard drives set up (a windows boot and an external usb I was using under windowsxp). A few days ago I could access both under linux with no problem. Now, I see them listed under media, but when I click on them, nothing is there (same thing happens when I go there in a term window). Now, the computer (under linux) sees them, but I can't see anything in them. (in nautilus it shows "(Empty)") Any ideas what happened or how to get access to them again? My guesses as to what might have caused it: -I was trying to set up AdobeAIR (unsuccessfully) and had to make and remove a couple of symbolic links. Never got that to work but maybe links I made or removed did something? -I was also trying to set up nautilus so that I could enter it with sudo permission. I also didn't figure out how to do that successfully, but maybe something I did while trying messed it up? (I think I installed and uninstalled nautilus-actions configuration tool). Note: I'm working on a relatively new install of 12.04

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• SATA drives or chipset throwing DRDY ERR and ICRC ABRT

  - by Matt

  I have an SD-VIA-1A2S PCI card with 2 sata ports (and one ATA-133 that isn't used). Two new Western Digital Caviar Green drives (WD10EARS 1TB) throw repeated errors in kern.log (removed date/time/host info for brevity): [ 7.376475] ata2.00: exception Emask 0x12 SAct 0x0 SErr 0x1000500 action 0x6 [ 7.376480] ata2.00: BMDMA stat 0x5 [ 7.376483] ata2: SError: { UnrecovData Proto TrStaTrns } [ 7.376489] ata2.00: cmd c8/00:40:20:00:00/00:00:00:00:00/e0 tag 0 dma 32768 in [ 7.376490] res 51/84:2f:20:00:00/00:00:00:00:00/e0 Emask 0x12 (ATA bus error) [ 7.376493] ata2.00: status: { DRDY ERR } [ 7.376495] ata2.00: error: { ICRC ABRT } [ 7.376504] ata2: hard resetting link I'm using Ubuntu 9.04 - 2.6.28-18-generic, though I have tried live cds of Ubuntu 9.10, Fedora 12 and OpenSUSE 11.2 - all running various 2.6.31 kernels - and all received the same error. Based on testing these drives and this card in two other machines and combos of connecting the drives directly to the motherboard or the add-in card, I'm relatively convinced that it's the VIA chipset that is the problem. Another computer that also has an onboard VIA SATA chipset (like the add-in card) produces the same errors when the drives are directly on that motherboard. I have been able to verify that the drives are perfectly good, and I tried everything I can think of in terms of swapping cables, psu isn't overloaded, etc. The error happens on boot once or twice, after using fdisk on the drive once or twice, and constantly when attempting to sync a new mdadm raid 1 array created on the two drives. Any thoughts on where to go from here - driver/kernel wise? I'm completely open to buying a new PCI add-in card if someone can recommend one with 2 internal sata ports that works well in Debian/Ubuntu. Thanks!

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• How to configure SCSI hard drives and RAID for Poweredge 2850 web server

  - by Saul

  I'm trying to set up a Poweredge 2850 as a web server, but as a server novice it's causing me some confusion. Its a virgin install so no data to be lost as yet, so I'd like to get the best arrangement for setting up Windows Server 2008. The box will run IIS, a mail and FTP server. The current physical arrangement of the hot swap drives is 1 73GB 3 146GB 5 blank 0 73GB 2 146GB 4 146GB (but flashes green, amber off) When I enter the PERC config screens on boot up I've got Raid Ch- 0 ID 0 ONLIN A00-00 1 ONLIN A00-01 2 ONLIN A01-00 3 ONLIN A01-01 4 HOTSP I think that drives 0 and 1 are set to RAID 1 and drives 2 and 3 are also set to RAID 1, certainly I can see 2 logical drives, both raid 1 of 69880MB and 139900MB Now what I think I am getting here is that the 2 73GB drives mirror each other and the 2 146GB drives mirror 2? so by my noob thinking if a drive fails I can pull it, insert and new one and it will reduplicate from its matching pair? I think the flashing amber probably indicates a failing drive in slot 4, should that just be binned? What confuses me coming from a home user XP background is that when I load up Windows Server 2008 OS under my computer I only see a C drive of about 70GB capacity. i.e wheres the 146GB drive? Any advice appreciated

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• how to initialize two logical drives on a HP P400i controller without reboot

  - by John

  What I am trying to do is initialize two logical drives on a HP P400i embedded controller without a reboot of the system here my current Array config: array A (SAS, Unused Space: 0 MB) logicaldrive 1 (17.9 GB, RAID 5, OK) logicaldrive 2 (17.9 GB, RAID 5, OK) logicaldrive 3 (75.9 GB, RAID 5, OK) logicaldrive 4 (25.0 GB, RAID 5, OK) physicaldrive 1I:1:1 (port 1I:box 1:bay 1, SAS, 72 GB, OK) physicaldrive 1I:1:2 (port 1I:box 1:bay 2, SAS, 72 GB, OK) physicaldrive 1I:1:3 (port 1I:box 1:bay 3, SAS, 72 GB, OK) array B (SAS, Unused Space: 0 MB) logicaldrive 5 (99 MB, RAID 0, OK) logicaldrive 6 (68.2 GB, RAID 0, OK) physicaldrive 1I:1:4 (port 1I:box 1:bay 4, SAS, 72 GB, OK) windows 2003 machine running the HpCISs2.sys driver version 6.20.0.32 . I have the ACU and ACU CLI tools installed version 8.28.13.0, P400i firmware version 2.74 . Now what I'd like to do is removes the physical drive 1I:1:4 and delete the two logical drives in array B. then insert a new drive in to bay 4 that contains two new logical drives and have them show up in array B again. So far after I remove the drive and delete the failed logical drives, I insert the new drive and run HPacucli rescan. I get the new drive to show up as unassinged physical drive but I cant figure out now to "for lack of a better word" mount the 2 logical drives on the new unassinged disk. If I reboot the system the array controller picks up the new fourth drive and creates Array B with the drives without problem but I'd really like to not have to reboot the server. Any ideas?

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• Broadcom HT1100 SATA controller not working properly with 1TB drives

  - by Jeff C

  I've been using RHEL distro's for several years and always managed to find the answers until now. I know this is more of a hardware issue, but I've been working on this for over a week and trust Linux and the IT community to help more then HP. I have CentOS 6.3 installed on an HP ProLiant DL145 G3 server with the BroadCom HT1100 IO controller and ServerWorks SATA Controller MMIO BIOS v3.0.0015.6 Firmware. This controller does not support large drives fully. Here's what I've tried and the results; Stock setup - Freezes on the ServerWorks POST screen. Can't even enter CMOS without disconnecting the drives. If I simply disconnect the SATA cables before it gets to the ServerWorks screen and reconnect afterwards I can boot from a CD, USB, PXE fine. However fiddling with cables at ever boot isn't practical. If I enter the BIOS config I can set it to not try booting the drives but leave the controller enabled. This lets me boot normally but the drives are not visible in the OS (live CDs or USB installed). I used method #2 to install and update CentOS. I have the /boot partition on a USB drive (everything else is on the SATA drives in software RAID1) hoping that would work around the issue but I get this Kernel panic - not syncing:Attempted to kill init! Pid: 1, comm: init Not tainted 2.6.32-279.9.1.el6.x86_6 #1 Call Trace: [<ffffffff814fd6ba>] ? panic+0xa0/0x168 [<ffffffff81070c22>] ? do_exit+0x862/0x870 [<ffffffff8117cdb5>] ? fput+0x25/0x30 [<ffffffff81070c88>] ? do_group_exit+0x58/0xd0 [<ffffffff81070d17>] ? sys_exit_group+0x17/0x20 [<ffffffff8100b0f2>] ? system_call_fastpath+0x16/0x1b panic occured, switching back to text console I'm sure it should be possible to talk to the drives without the BIOS boot check since the BIOS doesn't see them in method #2 either, their disconnected when it checks, but Linux sees them fine. If anyone could help figure out how I would greatly appreciate it! The other possible option I've come across is a complex firmware update. Tyan has a few boards on their website with the HT1100 and a ServerWorks v3.0.0015.7 update which says "adds support for TB drives" in the release notes. If someone could help me get the Tyan SATA firmware into the HP ROM file so I could just reflash that would also be very much appreciated. Thanks for any help you guys can offer!

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• How To Disconnect Non-Mapped UNC Path “Drives” in Windows

  - by The Geek

  Have you ever browsed over to another PC on your network using “network neighborhood”, and then connected to one of the file shares? Without a drive letter, how do you disconnect yourself once you’ve done so? Really confused as to what I’m talking about? Let’s walk through the process. First, imagine that you browse through and connect to a share, entering your username and password to gain access. The problem is that you stay connected, and there’s no visible way to disconnect yourself. If you try and shut down the other PC, you’ll receive a message that users are still connected. So let’s disconnect! Open up a command prompt, and then type in the following: net use This will give you a list of the connected drives, including the ones that aren’t actually mapped to a drive letter. To disconnect one of the connections, you can use the following command: net use /delete \\server\sharename For example, in this instance we’d disconnect like so: net use /delete \\192.168.1.205\root$ Now when you run the “net use” command again, you’ll see that you’ve been properly disconnected. If you wanted to actually connect to a share without mapping a drive letter, you can do the following: net use /user:Username \\server\sharename Password You could then just pop \\server\sharename into a Windows Explorer window and browse the files that way. Note that this technique should work exactly the same in any version of windows. Similar Articles Productive Geek Tips Remove "Map Network Drive" Menu Item from Windows Vista or XPDisable the Annoying "This page has an unspecified potential security risk" When Using Files on a Network ShareCopy Path of a File to the Clipboard in Windows 7 or VistaMap a Network Drive from XP to Windows 7Defrag Multiple Hard Drives At Once In Windows TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips DVDFab 6 Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 Enable DreamScene in Windows 7 Microsoft’s “How Do I ?” Videos Home Networks – How do they look like & the problems they cause Check Your IMAP Mail Offline In Thunderbird Follow Finder Finds You Twitter Users To Follow Combine MP3 Files Easily

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• Why Solid-State Drives Slow Down As You Fill Them Up

  - by Chris Hoffman

  The benchmarks are clear: Solid-state drives slow down as you fill them up. Fill your solid-state drive to near-capacity and its write performance will decrease dramatically. The reason why lies in the way SSDs and NAND Flash storage work. Filling the drive to capacity is one of the things you should never do with a solid-state drive. A nearly full solid-state drive will have much slower write operations, slowing down your computer.    

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• Using smartctl to get SMART status information on your hard drives

  <b>Tech Republic:</b> "Vincent Danen has some tips for using the smartmontools package to obtain important information about the health of your hard drives that could provide early warning signs of problems."

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• unable to mount hard drives

  - by mixtyplix

  I am currently trying to backup data from my computer's hard drive to an external one while live-booting to Ubuntu from a USB, and I've encountered a bit of a problem. You see, I cannot mount my hard drives. Whenever I try, I always get one of two errors: fuse: failed to access mountpoint [file I'm trying to mount to]: No such file or directory or Error mounting: mount exited with exit code 21: mount: according to mtab, [drive] is already mounted on [file I'm trying to mount to] How can I fix this?

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• Using Solid State Drives for Enterprise Storage

  SSDs can improve database and file system performance, but there are a number of issues that need to be addressed to make the most of the pricey drives.

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• Why can't 12.04 installer see one of my hard drives

  - by imparatore

  I'm trying to install Ubuntu 12.04 32-bit from a USB pen drive. I have two drives, a WD Caviar Black and a Samsung SPC250. At the "installation type" stage, it only sees my Samsung and the USB pen drive, not the WD. I checked the drive with gparted and everything seems fine. I tried the alternate installer but that doesn't work either I tried changing from IDE to AHCI in the BIOS and back What can I do now?

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