#356119 - 06/11/2012 22:21
Read XFS in Windows?
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carpal tunnel
Registered: 08/03/2000
Posts: 12338
Loc: Sterling, VA
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My Western Digital NAS didn't survive the recent move intact. It seems the controller board has died, though the drive still spins fine. I have it hooked up to my desktop now, running Windows 7.
The problem is that it's using an XFS file system.
Is there an easy way to read this from Windows? I've found about five different XFS file recovery programs, but they all range from around $30 to $100, but I'm not going to pay that for a one-time need.
What do I do?
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Matt
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#356121 - 06/11/2012 23:04
Re: Read XFS in Windows?
[Re: Dignan]
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pooh-bah
Registered: 12/01/2002
Posts: 2009
Loc: Brisbane, Australia
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VM running linux mapping the drive directly to the VM?
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Christian
#40104192 120Gb (no longer in my E36 M3, won't fit the E46 M3)
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#356125 - 07/11/2012 01:18
Re: Read XFS in Windows?
[Re: Shonky]
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carpal tunnel
Registered: 29/08/2000
Posts: 14493
Loc: Canada
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Boot a live Linux CD, mount the XFS volume read-only, mount the Windows drive (ntfs-3g) R/W, and copy your files over.
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#356132 - 07/11/2012 11:53
Re: Read XFS in Windows?
[Re: Shonky]
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carpal tunnel
Registered: 08/03/2000
Posts: 12338
Loc: Sterling, VA
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Boot a live Linux CD, mount the XFS volume read-only, mount the Windows drive (ntfs-3g) R/W, and copy your files over.
Okay, here's the annoying thing...my optical drives aren't working and my machine seems to be having issues booting to USB. So... VM running linux mapping the drive directly to the VM? This is what I'd been trying, but it doesn't seem to be working. After my original post, I went virtual. I mounted the Ubuntu install as a virtual CD, then installed it into a VirtualBox VM. It's up and running great, and will be a great way for me to get more familiar with Ubuntu. But at the moment I can't seem to get it to mount the partition. I'm pretty sure I'm doing it right, but I won't be surprised if I'm not. I created a directory for the mount, then I entered the following: mount -t xfs /dev/sda2 /mnt/windows But this returns: mount: wrong fs type, bad option, bad superblock on /dev/sda2,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so This has led me down a troubleshooting rabbit hole that's taken me nowhere. What do I do?
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Matt
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#356133 - 07/11/2012 12:14
Re: Read XFS in Windows?
[Re: Dignan]
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carpal tunnel
Registered: 29/08/2000
Posts: 14493
Loc: Canada
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If this was from a dedicated "NAS" box, then how many drives can the NAS hold? More than one, right?
In which case it probably always overlays a RAID of some kind onto the drive(s) before making filesystems. And doubly so if it used some kind of special hardware controller board for the drives.
What do these commands show you (run as "root" from within Ubuntu):
fdisk -l
cat /proc/partitions
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#356138 - 07/11/2012 12:50
Re: Read XFS in Windows?
[Re: mlord]
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carpal tunnel
Registered: 08/03/2000
Posts: 12338
Loc: Sterling, VA
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Nope, it was a single-drive NAS. This model, I'm pretty sure, but it could be the one before it. After fdisk -l: Disk /dev/sda: 8589 MB, 8589934592 bytes
255 heads, 63 sectors/track, 1044 cylinders, total 16777216 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000c2ec5
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 15728639 7863296 83 Linux
/dev/sda2 15730686 16775167 522241 5 Extended
/dev/sda5 15730688 16775167 522240 82 Linux swap / Solaris After cat /proc/partitions: major minor #blocks name
8 0 8388608 sda
8 1 7863296 sda1
8 2 1 sda2
8 5 522240 sda5
11 0 1048575 sr0
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Matt
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#356139 - 07/11/2012 12:54
Re: Read XFS in Windows?
[Re: Dignan]
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carpal tunnel
Registered: 08/03/2000
Posts: 12338
Loc: Sterling, VA
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Oh...now that I look at what you had me post, I'm assuming I'm having trouble because the VM has created a virtual disk with the assignment of sda? How do I give it access to the disk that's showing up in Windows as the actual sda? Or should I be trying to get my optical drives working now?  I've attached a shot of what I have in Disk Management. 
Edited by Dignan (07/11/2012 12:55)
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Matt
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#356141 - 07/11/2012 13:11
Re: Read XFS in Windows?
[Re: Dignan]
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carpal tunnel
Registered: 13/07/2000
Posts: 4180
Loc: Cambridge, England
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The mount command you show attempts /dev/sda2, but your fdisk listing shows that the filesystem is on /dev/sda1...
Peter
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#356142 - 07/11/2012 13:14
Re: Read XFS in Windows?
[Re: peter]
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carpal tunnel
Registered: 08/03/2000
Posts: 12338
Loc: Sterling, VA
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The mount command you show attempts /dev/sda2, but your fdisk listing shows that the filesystem is on /dev/sda1... Yeah, I'm not sure how to address the difference between the virtual machine and the host desktop's hard drives... I assume that as far as the VM knows there are no other hard drives other than the virtual one that gets mounted at boot...
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Matt
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#356143 - 07/11/2012 13:25
Re: Read XFS in Windows?
[Re: Dignan]
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carpal tunnel
Registered: 13/07/2000
Posts: 4180
Loc: Cambridge, England
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Oh right, sorry, yes, /dev/sda isn't even your drive. And the fact that yours isn't in /proc/partitions means that yes, it doesn't have a standard partition table. I assume that if you type dmesg, it does mention that it's found the physical drive? perhaps as /dev/sdb?
Peter
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#356144 - 07/11/2012 13:43
Re: Read XFS in Windows?
[Re: peter]
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carpal tunnel
Registered: 29/08/2000
Posts: 14493
Loc: Canada
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Oh right, sorry, yes, /dev/sda isn't even your drive. And the fact that yours isn't in /proc/partitions means that yes, it doesn't have a standard partition table. I assume that if you type dmesg, it does mention that it's found the physical drive? perhaps as /dev/sdb? Probably not. I expected to see /dev/sdb (with or without subpartitions) in /proc/partitions
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#356145 - 07/11/2012 13:52
Re: Read XFS in Windows?
[Re: mlord]
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carpal tunnel
Registered: 08/03/2000
Posts: 12338
Loc: Sterling, VA
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I've attached the huge list of stuff that dmesg returned.
Attachments
dmesg.txt (262 downloads)
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Matt
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#356146 - 07/11/2012 14:05
Re: Read XFS in Windows?
[Re: Dignan]
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carpal tunnel
Registered: 29/08/2000
Posts: 14493
Loc: Canada
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Nothing new there. Your VM doesn't have access to the drive yet.
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#356147 - 07/11/2012 14:44
Re: Read XFS in Windows?
[Re: mlord]
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carpal tunnel
Registered: 13/02/2002
Posts: 3212
Loc: Portland, OR
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Has the USB controller in the virtual machine been enabled? VirtualBox doesn't, IIRC, enable that by default.
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#356148 - 07/11/2012 15:52
Re: Read XFS in Windows?
[Re: canuckInOR]
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carpal tunnel
Registered: 13/07/2000
Posts: 4180
Loc: Cambridge, England
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Which of the drives in your Disk Manager picture is the one we're talking about? How is it attached to your PC -- USB? eSATA?
Peter
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#356155 - 08/11/2012 02:30
Re: Read XFS in Windows?
[Re: peter]
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carpal tunnel
Registered: 08/03/2000
Posts: 12338
Loc: Sterling, VA
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Nothing new there. Your VM doesn't have access to the drive yet. Yeah, I guess I'm trying to figure out how to do that. Has the USB controller in the virtual machine been enabled? VirtualBox doesn't, IIRC, enable that by default. I'll look for that setting, but... Which of the drives in your Disk Manager picture is the one we're talking about? How is it attached to your PC -- USB? eSATA? D'oh! Sorry. Yeah, we're looking at the first drive, the one that's all chopped up into multiple partitions, and we're looking at the last partition of that drive. I found some instructions online that said the fourth partition on the first SATA drive would be sda2, but I don't know how you get "2" for the fourth partition. Wouldn't it be "3?" And the drive is connected to SATA just like the others.
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Matt
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#356156 - 08/11/2012 02:54
Re: Read XFS in Windows?
[Re: Dignan]
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carpal tunnel
Registered: 08/06/1999
Posts: 7868
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sda is the first SCSI/SATA attached drive in the virtual machine, which should be the virtual disk the VM created. The external drive formatted XFS will be something else, such as sdb once it's properly passed into the VM. Since it's attached via SATA, you need to pass it in as a raw disk: http://www.virtualbox.org/manual/ch09.html#rawdisk
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#356157 - 08/11/2012 07:52
Re: Read XFS in Windows?
[Re: Dignan]
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carpal tunnel
Registered: 13/07/2000
Posts: 4180
Loc: Cambridge, England
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I found some instructions online that said the fourth partition on the first SATA drive would be sda2, but I don't know how you get "2" for the fourth partition. Wouldn't it be "3?" Your internet has been deceiving you. The four primary partitions are sda1 to sda4 (or sdb1 to sdb4, etc.), though they're numbered in the order they're defined in the partition table, not in the order they appear on the disk -- it'd be legit but decidedly odd for sda1 to be the one at the end, for instance. Peter
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#356179 - 08/11/2012 20:16
Re: Read XFS in Windows?
[Re: mlord]
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carpal tunnel
Registered: 08/03/2000
Posts: 12338
Loc: Sterling, VA
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Boot a live Linux CD, mount the XFS volume read-only, mount the Windows drive (ntfs-3g) R/W, and copy your files over.
Okay, so I rummaged through my pile of boxes, finally found a DVD burner, and made an Ubuntu live disc and booted to it. I didn't need to mount the existing drives because they came up automatically, and I was easily able to mount the NAS drive with no troubles whatsoever. I copied all the data off and now I'll wipe the drive for use as a regular NTFS disc. Thanks for the help, folks. I'm still interested in trying out the Ubuntu VM, so I'll play around with that.
Edited by Dignan (08/11/2012 20:17)
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Matt
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#356183 - 09/11/2012 01:16
Re: Read XFS in Windows?
[Re: Dignan]
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carpal tunnel
Registered: 19/01/2002
Posts: 3584
Loc: Columbus, OH
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Well done!
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~ John
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#356186 - 09/11/2012 10:29
Re: Read XFS in Windows?
[Re: JBjorgen]
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carpal tunnel
Registered: 08/03/2000
Posts: 12338
Loc: Sterling, VA
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Thank you! But as usual I'm glad I got the help here, and I learned a good deal as well.
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Matt
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