Can't delete a jail

[sdspieg]

I am having problems deleting a number of old plugin jails that are no longer viewable in the jail list, but that I also cannot remove through rm. If I go into the directories I can use chflags and aftter that I can remove that directory. But there does not seem to be a recursive option for chflags and there are hundreds of directories in that jail. Does anybody have any idea on how to fix this? Thanks.

 

[Yatti420]

Are you trying to delete a jail via CLI? Which version of FreeNAS are you using? You can't see the jails at all in the list? Even after reboot or in logs? http://doc.freenas.org/index.php/Adding_Jails#Managing_Jails

Edit: Did your jail root directory change?

 

[sdspieg]

Yes, since I can't 'see' them anymore (including after multiple reboots), I'm trying through CLI. I'm using 9.2.1, but the jails were created under previous versions (but none over a few months ago at the latest). And it IS a flag issue - as soon as I change the flags (manually), I CAN delete them.

 

[dlavigne]

Use -R for recursive.

 

[sdspieg]

-R does not do recursive for chflags - which is what I need...

 

[dlavigne]

It did the last time I needed to recursively use chflags...

 

[cyberjock]

Sure looks like dlavigne has this one right...

http://www.freebsd.org/cgi/man.cgi?...=FreeBSD+9.2-RELEASE&arch=default&format=html

 

[sdspieg]

Ok - so I tried again, in putty this time. And

Code:

chflags -R noschg *

did seem to work. And it also then allowed me to removed all of those directories. But when I go one dir up and try to remove that one I get the following

Code:

[root@freenas] /mnt/StephanNAS/jails# rm -rf plexmediaserver_1
rm: plexmediaserver_1: Device busy

Any ideas on this one?

 

[sdspieg]

It really seems as though SOMETHING in the system still thinks that those jails are there. But I don't see them in the gui, and also in the CLI I see

Code:

[root@freenas] /mnt/StephanNAS/jails# jls
  JID  IP Address      Hostname                      Path
    1  -              couchpotato_1                /mnt/StephanNAS/jails/couchpotato_1
    2  -              sabnzbd_1                    /mnt/StephanNAS/jails/sabnzbd_1
    3  -              sickbeard_1                  /mnt/StephanNAS/jails/sickbeard_1
    4  -              transmission_1                /mnt/StephanNAS/jails/transmission_1
    5  -              minidlna_1                    /mnt/StephanNAS/jails/minidlna_1

 

[sdspieg]

I just tried renaming that directory

Code:

mv: cannot rename a mount point.

So this does suggest it still thinks it's mounted.

 

[sdspieg]

Code:

[root@freenas] /mnt/StephanNAS/jails# mount
/dev/ufs/FreeNASs1a on / (ufs, local, read-only)
devfs on /dev (devfs, local, multilabel)
/dev/md0 on /etc (ufs, local)
/dev/md1 on /mnt (ufs, local)
/dev/md2 on /var (ufs, local)
/dev/ufs/FreeNASs4 on /data (ufs, local, noatime, soft-updates)
StephanNAS on /mnt/StephanNAS (zfs, local, nfsv4acls)
StephanNAS/.samba4 on /mnt/StephanNAS/.samba4 (zfs, local, nfsv4acls)
StephanNAS/Scripts on /mnt/StephanNAS/Scripts (zfs, local, nfsv4acls)
StephanNAS/jails on /mnt/StephanNAS/jails (zfs, local, nfsv4acls)
StephanNAS/jails/.warden-template-9.1-RELEASE-amd64 on /mnt/StephanNAS/jails/.warden-template-9.1-RELEASE-amd64 (zfs, local, nfsv4acls)
StephanNAS/jails/.warden-template-9.1-RELEASE-amd64-pluginjail on /mnt/StephanNAS/jails/.warden-template-9.1-RELEASE-amd64-pluginjail (zfs, local, nfsv4acls)
StephanNAS/jails/.warden-template-pluginjail-9.2-RELEASE-x64 on /mnt/StephanNAS/jails/.warden-template-pluginjail-9.2-RELEASE-x64 (zfs, local, nfsv4acls)
StephanNAS/jails/.warden-template-pluginjail-9.2-RELEASE-x64-20140221173933 on /mnt/StephanNAS/jails/.warden-template-pluginjail-9.2-RELEASE-x64-20140221173933 (zfs, local, nfsv4acls)
StephanNAS/jails/couchpotato_1 on /mnt/StephanNAS/jails/couchpotato_1 (zfs, local, nfsv4acls)
StephanNAS/jails/plex_1 on /mnt/StephanNAS/jails/plex_1 (zfs, local, nfsv4acls)
StephanNAS/jails/plexmediaserver_1 on /mnt/StephanNAS/jails/plexmediaserver_1 (zfs, local, nfsv4acls)

So there we have them. Now I just have to figure out how to UNmount those...

 

[sdspieg]

http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/mount-unmount.html

And BINGO!

Code:

[root@freenas] /mnt/StephanNAS/jails# umount StephanNAS/jails/plex_1
[root@freenas] /mnt/StephanNAS/jails# umount StephanNAS/jails/plexmediaserver_1

And after having done that, I could easily remove the dirs.

SO summing up - if anybody ever has a similar problem, for me the key commands were

1. chflags -R noschg * and
2. mount to see the mounts
3. unmount [name of the jail you're trying to delete]

Glad that's finally solved. And hopefully I'll now be able to reinstall my plexmediaserver properly!

 

[gsuave]

sdspieg, thank you.