Xen Orchestra - Permissions Issue - File level restore

DustinB3403

@Danp Do you have SSHFS installed?

DustinB3403

One sec, Fuse not installed on debian by default... FML... repo added installing fuse.

Rebooting and then recompiling..

Danp

@DustinB3403 Thought you did that yesterday. Did you rebuild from scratch?

DustinB3403

@Danp said in Xen Orchestra - Permissions Issue - File level restore:

@DustinB3403 Thought you did that yesterday. Did you rebuild from scratch?

No I added the universal repo yesterday for something else that was needed.

Anyways, now trying to mount a single backup I get

Dec 21 14:15:18 xo-test-debian-3 xo-server[416]: Wed, 21 Dec 2016 19:15:18 GMT xo:api [email protected] | backup.scanDisk(...) [1s] ==> object
Dec 21 14:15:18 xo-test-debian-3 xo-server[416]: { [Error: Command failed: mount --options=loop,ro --source=/tmp/tmp-416paluKS1uHkUS/vhdi7 --target=/tmp/tmp-4160yW3G6ma9LZP
Dec 21 14:15:18 xo-test-debian-3 xo-server[416]: mount: wrong fs type, bad option, bad superblock on /dev/loop0,
Dec 21 14:15:18 xo-test-debian-3 xo-server[416]: missing codepage or helper program, or other error
Dec 21 14:15:18 xo-test-debian-3 xo-server[416]: In some cases useful info is found in syslog - try
Dec 21 14:15:18 xo-test-debian-3 xo-server[416]: dmesg | tail or so.
Dec 21 14:15:18 xo-test-debian-3 xo-server[416]: ]
Dec 21 14:15:18 xo-test-debian-3 xo-server[416]: code: 32,
Dec 21 14:15:18 xo-test-debian-3 xo-server[416]: killed: false,
Dec 21 14:15:18 xo-test-debian-3 xo-server[416]: stdout: '',
Dec 21 14:15:18 xo-test-debian-3 xo-server[416]: stderr: 'mount: wrong fs type, bad option, bad superblock on /dev/loop0,\n       missing codepage or helper program, or other error\n\n       In some cases useful info is found in syslog - try\n       dmesg | tail or so.\n',
Dec 21 14:15:18 xo-test-debian-3 xo-server[416]: failed: true,
Dec 21 14:15:18 xo-test-debian-3 xo-server[416]: signal: null,
Dec 21 14:15:18 xo-test-debian-3 xo-server[416]: cmd: 'mount --options=loop,ro --source=/tmp/tmp-416paluKS1uHkUS/vhdi7 --target=/tmp/tmp-4160yW3G6ma9LZP' }
Dec 21 14:15:18 xo-test-debian-3 xo-server[416]: Wed, 21 Dec 2016 19:15:18 GMT xo:api [email protected] | backup.scanFiles(...) [218ms] =!> Error: Command failed: mount --options=loop,ro --source=/tmp/tmp-416paluKS1uHkUS/vhdi7 --target=/tmp/tmp-4160yW3G6ma9LZP
Dec 21 14:15:18 xo-test-debian-3 xo-server[416]: mount: wrong fs type, bad option, bad superblock on /dev/loop0,
Dec 21 14:15:18 xo-test-debian-3 xo-server[416]: missing codepage or helper program, or other error
Dec 21 14:15:18 xo-test-debian-3 xo-server[416]: In some cases useful info is found in syslog - try
Dec 21 14:15:18 xo-test-debian-3 xo-server[416]: dmesg | tail or so.

Trying another backup . oh and dmesg | tail contains

10.867971] Adding 392188k swap on /dev/xvda5.  Priority:-1 extents:1 across:392188k SSFS
13.590095] RPC: Registered named UNIX socket transport module.
13.590099] RPC: Registered udp transport module.
13.590100] RPC: Registered tcp transport module.
13.590101] RPC: Registered tcp NFSv4.1 backchannel transport module.
13.633648] FS-Cache: Loaded
13.681056] FS-Cache: Netfs 'nfs' registered for caching
13.943515] Installing knfsd (copyright (C) 1996 [email protected]).
86.204993] fuse init (API version 7.23)
86.635229] loop: module loaded

DustinB3403

Seems to be specific to that backup, as I am able to restore files to my file server now without issue.

So a few things to we should try to compile into the update script, check for fuse, and install it if its not there.

DustinB3403

Another is listing things like this....

398.675872] ntfs: (device loop0): ntfs_readdir(): Directory index record with vcn 0x0 is corrupt.  Corrupt inode 0xe96b9.  Run chkdsk.
398.675890] ntfs: (device loop0): ntfs_readdir(): Directory index record with vcn 0x0 is corrupt.  Corrupt inode 0xe96b9.  Run chkdsk.

So yeah.. gonna run a check disk on my VM here..

Danp

@DustinB3403 said in Xen Orchestra - Permissions Issue - File level restore:

Seems to be specific to that backup, as I am able to restore files to my file server now without issue.

So a few things to we should try to compile into the update script, check for fuse, and install it if its not there.

Also for libvhdi-utils

DustinB3403

@Danp That was the other thing, that I installed yesterday.

libvhdi-utils

DustinB3403

This would list if the packaged is installed, so how to pipe that output into the next part would be the question.

dpkg --get-selections | grep libvhdi-utils
libvhdi-utils                                     install

Danp

Found this code on the interweb. I would think either the 2nd or 3rd solution would work fine for our needs.

DustinB3403

Yeah, this might be the easiest solution...

if [ $(dpkg-query -W -f='${Status}' nano 2>/dev/null | grep -c "ok installed") -eq 0 ];
then
  apt-get install nano;
fi

Might need to throw up a flag or warning if the package can't be found though. Like in my case I had to add the universal repo to my debian installation before I could install libvhdi-util and fuse.

Danp

Should be able to check the exit code from apt-get. Now to wrap the whole thing into a nice little function that we can reuse in the future.

Danp

5.5.2 is out. Grab it while it's hot!

BRRABill

@Danp said in Xen Orchestra - Permissions Issue - File level restore:

5.5.2 is out. Grab it while it's hot!

Hmmm, I am glad I didn't have time to futz with the other version!

I actually don't even have XO backups set up yet. Still doing agents from inside the VMs since it works awesomely and I just haven't had time to play with XO.

Danp

Yeah... usually best to wait a few days for them to work out any kinks before upgrading production systems.

DustinB3403

Upgraded and back to stable release.

Have you had any progress with the wrong fs type issue? Do you have a open issue ticket?

Danp

@DustinB3403 No. There's an active thread over on the XO forum. I was just getting ready to post over there. Think I may have found the cause.

DustinB3403

@Danp nice, post a link and I can test as well. I'm busy with another issue, so I'll have to play catch up.

Danp

@DustinB3403 Looks like Ubuntu has an older version of vhdimount in the repository. Can you post the output from vhdimount -V?

DustinB3403

vhdimount -V
vhdimount 20150110

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