Conversion failed with fsmove error

[aciavolino]

17:18:46 ERROR! fstransform: command '/sbin/fsmove -- /tmp/fstransform.mount.12641 /tmp/fstransform.loop.12641 --exclude /tmp/fstransform.mount.12641/.fstransform.loop.12641' failed (exit status 240)
this is potentially a problem.
you can either quit now by pressing ENTER or CTRL+C,

            or, if you know what went wrong, you can fix it yourself,
            then manually run the command '/sbin/fsmove -- /tmp/fstransform.mount.12641 /tmp/fstransform.loop.12641 --exclude /tmp/fstransform.mount.12641/.fstransform.loop.12641'
            (or something equivalent)

[cosmos72]

Hi @aciavolino
can you post the lines before this error?

It's unusual for fsmove to fail, but it can happen, and it should have logged the reason.
Also, knowing what conversion you were doing and the partition size and usage % could help.

[aciavolino]

[root@ctstageextweb2vm ~]# fstransform /dev/sda1 ext4
fstransform: starting version 0.9.3, checking environment
fstransform: checking for which... '/bin/which'
fstransform: checking for expr... '/bin/expr'
fstransform: checking for id... '/bin/id'
fstransform: parsing command line arguments
fstransform: checking for stat... '/bin/stat'
fstransform: checking for mkfifo... '/bin/mkfifo'
fstransform: checking for blockdev... '/sbin/blockdev'
fstransform: checking for losetup... '/sbin/losetup'
fstransform: checking for fsck... '/sbin/fsck'
fstransform: checking for mkfs... '/sbin/mkfs'
fstransform: checking for mount... '/bin/mount'
fstransform: checking for umount... '/bin/umount'
fstransform: checking for mkdir... '/bin/mkdir'
fstransform: checking for rmdir... '/bin/rmdir'
fstransform: checking for rm... '/bin/rm'
fstransform: checking for dd... '/bin/dd'
fstransform: checking for sync... '/bin/sync'
fstransform: checking for fsmove... '/sbin/fsmove'
fstransform: checking for fsremap... '/sbin/fsremap'
fstransform: checking for fsck(source file-system)... '/sbin/fsck'
fstransform: checking for fsck(target file-system)... '/sbin/fsck'
fstransform: looking for optional commands
fstransform: checking for sleep... '/bin/sleep'
fstransform: checking for date... '/bin/date'
08:07:01 fstransform: environment check passed.
08:07:01 fstransform: saving output of this execution into /var/tmp/fstransform/ fstransform.log.22858
08:07:01 fstransform: preparing to transform device '/dev/sda1' to file-system t ype 'ext4'
08:07:01 fstransform: device '/dev/sda1' not found in the output of command /bin /mount, assuming it is not mounted
08:07:01 fstransform: device is now mounted at '/tmp/fstransform.mount.22858' wi th file-system type 'xfs'
08:07:01 fstransform: device raw size = 1073741824 bytes

08:07:01 fstransform: WARNING: possibly stale fstransform loop files found insid e device '/dev/sda1',
maybe they can be removed? list of files found:

                  /tmp/fstransform.mount.22858/.fstransform.loop.11631 /tmp/                                                                                                                                                             fstransform.mount.22858/.fstransform.loop.11837 /tmp/fstransform.mount.22858/.fs                                                                                                                                                             transform.loop.12027 /tmp/fstransform.mount.22858/.fstransform.loop.12252 /tmp/f                                                                                                                                                             stransform.mount.22858/.fstransform.loop.12641

08:07:01 fstransform: creating sparse loop file '/tmp/fstransform.mount.22858/.f stransform.loop.22858' inside device '/dev/sda1'...
08:07:01 dd: 1+0 records in
08:07:01 dd: 1+0 records out
08:07:01 dd: 1 byte (1 B) copied, 0.0003222 s, 3.1 kB/s
08:07:01 fstransform: device file-system block size = 4096 bytes
08:07:01 fstransform: device usable size = 1073741824 bytes
08:07:01 dd: 1+0 records in
08:07:01 dd: 1+0 records out
08:07:01 dd: 1 byte (1 B) copied, 0.0003261 s, 3.1 kB/s
08:07:01 fstransform: connected loop device '/dev/loop0' to file '/tmp/fstransfo rm.mount.22858/.fstransform.loop.22858'
08:07:01 fstransform: formatting loop device '/dev/loop0' with file-system type 'ext4'...
08:07:02 fstransform: mounting loop device '/dev/loop0' on '/tmp/fstransform.loo p.22858' ...
08:07:02 fstransform: loop device '/dev/loop0' mounted successfully.
08:07:02 fstransform: preliminary steps completed, now comes the delicate part:
08:07:02 fstransform: fstransform will move '/dev/sda1' contents into the loop f ile.

08:07:02 fstransform: WARNING: THIS IS IMPORTANT! if either the original device '/dev/sda1'
or the loop device '/dev/loop0' become FULL,

                   YOU  WILL  LOSE  YOUR  DATA !

                  fstransform checks for enough available space,
                  in any case it is recommended to open another terminal, ty                                                                                                                                                             pe
                    watch df /dev/sda1 /dev/loop0
                  and check that both the original device '/dev/sda1'
                  and the loop device '/dev/loop0' are NOT becoming full.
                  if one of them is becoming full (or both),
                  you MUST stop fstransform with CTRL+C or equivalent.

                  this is your chance to quit.
                  press ENTER to continue, or CTRL+C to quit:

08:07:10 fstransform: moving '/dev/sda1' contents into the loop file.
08:07:10 fstransform: this may take a long time, please be patient...
08:07:10 fsmove: ERROR: failed to remove source directory `/tmp/fstransform.moun t.22858/efi': Device or resource busy

08:07:10 ERROR! fstransform: command '/sbin/fsmove -- /tmp/fstransform.mount.228 58 /tmp/fstransform.loop.22858 --exclude /tmp/fstransform.mount.22858/.fstransfo rm.loop.22858' failed (exit status 240)
this is potentially a problem.
you can either quit now by pressing ENTER or CTRL+C,

            or, if you know what went wrong, you can fix it yourself,
            then manually run the command '/sbin/fsmove -- /tmp/fstransform.                                                                                                                                                             mount.22858 /tmp/fstransform.loop.22858 --exclude /tmp/fstransform.mount.22858/.                                                                                                                                                             fstransform.loop.22858'
            (or something equivalent)
            and finally resume this script by typing CONTINUE and pressing E                                                                                                                                                         NTER:

[aciavolino]

I am trying to convert the boot partition from xfs to ext4

[cosmos72]

The error is

08:07:10 fsmove: ERROR: failed to remove source directory `/tmp/fstransform.mount.22858/efi': Device or resource busy

Fstransform does not support converting file systems which contain mount points for other partitions: the usual solution is to unmount them.
Actually, this is a strange error because /dev/sda1 was mounted by fstranform itself, so it should not contain mount points for other partitions. What does ls -l efi show when run inside the filesystem you are converting? (you will need to mount it somewhere)

Also, the following warning means several previous conversion attempts failed:

08:07:01 fstransform: WARNING: possibly stale fstransform loop files found inside device '/dev/sda1',
maybe they can be removed? list of files found:
    /tmp/fstransform.mount.22858/.fstransform.loop.11631 /tmp/fstransform.mount.22858/.fstransform.loop.11837 /tmp/fstransform.mount.22858/.fstransform.loop.12027 /tmp/fstransform.mount.22858/.fstransform.loop.12252 /tmp/fstransform.mount.22858/.fstransform.loop.12641

You really need to undo such previous conversion attempts, by loop-mounting those files and copying back their contents to the partition you are converting. Or, if they are empty, by deleting such files.

[aciavolino]

Ok so I did unmount that drive and it still gives the error. I will look into removing those. How exactly do I loop mount them?

[cosmos72]

Supposing /dev/sda1 is mounted somewhere - for example in /tmp/fstransform.mount.22858 - you can loop-mount the first of those files with

mount /tmp/fstransform.mount.22858/.fstransform.loop.11631 /mnt

i.e. you just pass the file absolute path to mount as if it was a block device.

[aciavolino]

I removed those loop files in temp and tried again, same error.

[cosmos72]

See my updated comment above:

[...] this is a strange error because /dev/sda1 was mounted by fstranform itself, so it should not contain mount points for other partitions. What does ls -l efi show when run inside the filesystem you are converting? (you will need to mount it somewhere)

[aciavolino]

ls: cannot access efi: No such file or directory

[aciavolino]

Let me explain what I am trying to accomplish. Trying to convert from legacy to uefi, but I need to convert the xfs partition because currently I cannot shrink it.

[aciavolino]

This VM is a clone of a production machine so I pose no risk of losing real data.

[cosmos72]

Yes, converting xfs to ext[2,3,4] is supported.

It's just that efi entry that is giving problems, and the reason is not yet clear.
Can you post the output of ls -al MOUNT_POINT, where MOUNT_POINT is the directory where you mounted /dev/sda1 ?

[aciavolino]

Pardon my obtuse reaction, but its a boot partition. I am not really sure what that answer is.