[SOLVED] PVE7: LXC cant start with bind mounts

Q

quotengrote

New Member
Jul 10, 2021
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Hi all,

i have created following container:

Code: 
mg@pve2:/etc/pve/lxc$ sudo cat 127.conf
arch: amd64
cores: 2
hostname: fileserver2
memory: 2048
mp0: /hdd_data_raidz/videos,mp=/shares_videos
mp1: /hdd_data_raidz/data_crypt,mp=/shares
mp2: /hdd_data_raidz/vm_backup,mp=/shares_pve_backup
mp3: /hdd_data_raidz/papa_backup,mp=/shares_papa_backup
mp4: /hdd_data_raidz/music,mp=/shares_music
mp5: /hdd_data_raidz/tmp,mp=/shares_tmp
mp6: /hdd_data_raidz/archiv,mp=/shares_archiv
net0: name=eth0,bridge=vmbr0,firewall=1,hwaddr=42:51:EE:46:EA:1F,ip=dhcp,type=veth
ostype: ubuntu
rootfs: ZFS_VM_QCOW:127/vm-127-disk-0.raw,size=8G
swap: 512

to which i mounted following datasets:

Code: 
mg@pve2:/etc/pve/lxc$ sudo zfs list
NAME                                               USED  AVAIL     REFER  MOUNTPOINT
hdd_data_raidz                                    12.0T  2.07T      149K  /hdd_data_raidz
hdd_data_raidz/archiv                             10.8G  2.07T     10.7G  /hdd_data_raidz/archiv
hdd_data_raidz/data_crypt                         1.44T  2.07T     1.29T  /hdd_data_raidz/data_crypt
hdd_data_raidz/music                              2.17T  2.07T     2.17T  /hdd_data_raidz/music
hdd_data_raidz/papa_backup                        1.28T  2.07T     1.27T  /hdd_data_raidz/papa_backup
hdd_data_raidz/pve_backup                          337G  2.07T      337G  /hdd_data_raidz/pve_backup
hdd_data_raidz/tmp                                 405K  2.07T      170K  /hdd_data_raidz/tmp
hdd_data_raidz/videos                             6.79T  2.07T     6.69T  /hdd_data_raidz/videos

when i try to start the Container this error appears:
Code: 
run_buffer: 316 Script exited with status 2
lxc_init: 816 Failed to run lxc.hook.pre-start for container "127"
__lxc_start: 2007 Failed to initialize container "127"
TASK ERROR: startup for container '127' failed

This container on the other hand works:
Code: 
mg@pve2:/etc/pve/lxc$ sudo cat 109.conf

arch: amd64
cores: 2
hostname: fileserver2
memory: 2048
mp0: /hdd_data_raidz/videos,mp=/shares_videos
mp1: /hdd_data_raidz/data_crypt,mp=/shares
mp2: /hdd_data_raidz/pve_backup,mp=/shares_pve_backup
mp3: /hdd_data_raidz/papa_backup,mp=/shares_papa_backup
mp4: /hdd_data_raidz/music,mp=/shares_music
mp5: /hdd_data_raidz/tmp,mp=/shares_tmp
mp6: /hdd_data_raidz/archiv,mp=/shares_archiv
net0: name=eth0,bridge=vmbr0,firewall=1,hwaddr=42:51:EE:46:EA:1F,ip=dhcp,type=veth
onboot: 0
ostype: ubuntu
rootfs: ZFS_VM_ZVOL:subvol-109-disk-0,size=8G
startup: order=200
swap: 64


Does anyone have an Idea?
 
try start with:
lxc-start -n 127 -F -lDEBUG -o lxc-127.log

share the "lxc-127.log" with us.
 
Last edited:
Hi,

Code: 
mg@pve2:~$ sudo lxc-start -n 127 -F -lDEBUG -o lxc-127.log                                                                                                                              [0/0]
lxc-start: 127: conf.c: run_buffer: 316 Script exited with status 2
lxc-start: 127: start.c: lxc_init: 816 Failed to run lxc.hook.pre-start for container "127"
lxc-start: 127: start.c: __lxc_start: 2007 Failed to initialize container "127"
lxc-start: 127: tools/lxc_start.c: main: 308 The container failed to start
lxc-start: 127: tools/lxc_start.c: main: 313 Additional information can be obtained by setting the --logfile and --logpriority options
mg@pve2:~$ cat lxc-127.log
cat: lxc-127.log: Permission denied
mg@pve2:~$ sudo cat lxc-127.log
lxc-start 127 20210710164510.929 INFO     lsm - lsm/lsm.c:lsm_init_static:40 - Initialized LSM security driver AppArmor
lxc-start 127 20210710164510.929 INFO     conf - conf.c:run_script_argv:332 - Executing script "/usr/share/lxc/hooks/lxc-pve-prestart-hook" for container "127", config section "lxc"
lxc-start 127 20210710164511.505 DEBUG    conf - conf.c:run_buffer:305 - Script exec /usr/share/lxc/hooks/lxc-pve-prestart-hook 127 lxc pre-start produced output: directory '/hdd_data_raidz
/vm_backup' does not exist

lxc-start 127 20210710164511.515 ERROR    conf - conf.c:run_buffer:316 - Script exited with status 2
lxc-start 127 20210710164511.515 ERROR    start - start.c:lxc_init:816 - Failed to run lxc.hook.pre-start for container "127"
lxc-start 127 20210710164511.515 ERROR    start - start.c:__lxc_start:2007 - Failed to initialize container "127"
lxc-start 127 20210710164511.515 INFO     conf - conf.c:run_script_argv:332 - Executing script "/usr/share/lxcfs/lxc.reboot.hook" for container "127", config section "lxc"
lxc-start 127 20210710164512.171 INFO     conf - conf.c:run_script_argv:332 - Executing script "/usr/share/lxc/hooks/lxc-pve-poststop-hook" for container "127", config section "lxc"
lxc-start 127 20210710164512.456 DEBUG    conf - conf.c:run_buffer:305 - Script exec /usr/share/lxc/hooks/lxc-pve-poststop-hook 127 lxc post-stop produced output: umount: /var/lib/lxc/.pve-
staged-mounts/mp3: not mounted.

lxc-start 127 20210710164512.456 DEBUG    conf - conf.c:run_buffer:305 - Script exec /usr/share/lxc/hooks/lxc-pve-poststop-hook 127 lxc post-stop produced output: command 'umount -- /var/li
b/lxc/.pve-staged-mounts/mp3' failed: exit code 32

lxc-start 127 20210710164512.460 DEBUG    conf - conf.c:run_buffer:305 - Script exec /usr/share/lxc/hooks/lxc-pve-poststop-hook 127 lxc post-stop produced output: umount: /var/lib/lxc/.pve-
staged-mounts/mp4: not mounted.

lxc-start 127 20210710164512.460 DEBUG    conf - conf.c:run_buffer:305 - Script exec /usr/share/lxc/hooks/lxc-pve-poststop-hook 127 lxc post-stop produced output: command 'umount -- /var/li
b/lxc/.pve-staged-mounts/mp4' failed: exit code 32

lxc-start 127 20210710164512.467 DEBUG    conf - conf.c:run_buffer:305 - Script exec /usr/share/lxc/hooks/lxc-pve-poststop-hook 127 lxc post-stop produced output: umount: /var/lib/lxc/.pve-
staged-mounts/mp2: not mounted.

lxc-start 127 20210710164512.467 DEBUG    conf - conf.c:run_buffer:305 - Script exec /usr/share/lxc/hooks/lxc-pve-poststop-hook 127 lxc post-stop produced output: command 'umount -- /var/li
b/lxc/.pve-staged-mounts/mp2' failed: exit code 32

lxc-start 127 20210710164512.511 DEBUG    conf - conf.c:run_buffer:305 - Script exec /usr/share/lxc/hooks/lxc-pve-poststop-hook 127 lxc post-stop produced output: umount: /var/lib/lxc/.pve-
staged-mounts/mp5: not mounted.

lxc-start 127 20210710164512.511 DEBUG    conf - conf.c:run_buffer:305 - Script exec /usr/share/lxc/hooks/lxc-pve-poststop-hook 127 lxc post-stop produced output: command 'umount -- /var/li
b/lxc/.pve-staged-mounts/mp5' failed: exit code 32

lxc-start 127 20210710164512.515 DEBUG    conf - conf.c:run_buffer:305 - Script exec /usr/share/lxc/hooks/lxc-pve-poststop-hook 127 lxc post-stop produced output: umount: /var/lib/lxc/.pve-
staged-mounts/mp6: not mounted.

lxc-start 127 20210710164512.515 DEBUG    conf - conf.c:run_buffer:305 - Script exec /usr/share/lxc/hooks/lxc-pve-poststop-hook 127 lxc post-stop produced output: command 'umount -- /var/li
b/lxc/.pve-staged-mounts/mp6' failed: exit code 32

lxc-start 127 20210710164512.539 ERROR    lxc_start - tools/lxc_start.c:main:308 - The container failed to start
lxc-start 127 20210710164512.539 ERROR    lxc_start - tools/lxc_start.c:main:313 - Additional information can be obtained by setting the --logfile and --logpriority options
mg@pve2:~$
 
lxc-start 127 20210710164511.505 DEBUG conf - conf.c:run_buffer:305 - Script exec /usr/share/lxc/hooks/lxc-pve-prestart-hook 127 lxc pre-start produced output:
directory '/hdd_data_raidz/vm_backup' does not exist

please run and post the output of:
pct config 127
 
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Reactions: quotengrote
Oh my f* god, i dont know why i didnt see this. I have now used the right dataset and it works.

Thank you!
 
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