Upgrade from 5.x to 6.x LXC containers will not start

[Stoiko Ivanov]

As said (in https://forum.proxmox.com/threads/u...c-containers-will-not-start.56102/post-268741) - it might be worth to set the cachefile on both your pools, update the initramfs and reboot - this fixed similar problems of other users

Could you try that?

 

[Cronus89]

interesting, i did all that and I see the 105 container is mounted, however I get a new error about detecting OS distribution.

lxc-start 105 20190924192126.899 DEBUG    conf - conf.c:run_buffer:326 - Script exec /usr/share/lxc/hooks/lxc-pve-prestart-hook 105 lxc pre-start with output: unable to detect OS distribution

Also the other containers are not mounted still.

 

[Stoiko Ivanov]

Which ones are not mounted - and i assume you check via `zfs get all <dataset>| grep -i mount`

I get a new error about detecting OS distribution.

what kind of container is it - and does it have the relevant distribution file (e.g. for debian and ubuntu it would be '/etc/debian_version' inside the container, for redhat/centos /etc/redhat-release or /etc/centos-release respectively)

 

[talos]

As said (in https://forum.proxmox.com/threads/u...c-containers-will-not-start.56102/post-268741) - it might be worth to set the cachefile on both your pools, update the initramfs and reboot - this fixed similar problems of other users

Could you try that?

I have the same issue. I always get stuck "dev" folders in container directorys after a reboot. I think this dev folders comes from tun device passtrough not getting cleaned up after restarting Proxmox host. I give your solution i try.

 

[Cronus89]

They are all debian containers. it started up that one time when i manually mounted it, so I would assume the file is there?

I would have no reason to think my files/containers are suddenly dead and lost their data just from a proxmox upgrade.
Sounds like there is still some rather major bug halting this from working.

These are all the mounts

root@prox2:~# zfs get all | grep -i mount
rootpool                                                     mounted                yes                            -
rootpool                                                     mountpoint             /rootpool                      default
rootpool                                                     canmount               on                             default
rootpool/ROOT                                                mounted                yes                            -
rootpool/ROOT                                                mountpoint             /rootpool/ROOT                 default
rootpool/ROOT                                                canmount               on                             default
rootpool/ROOT/pve-1                                          mounted                yes                            -
rootpool/ROOT/pve-1                                          mountpoint             /                              local
rootpool/ROOT/pve-1                                          canmount               on                             default
rootpool/data                                                mounted                yes                            -
rootpool/data                                                mountpoint             /rootpool/data                 default
rootpool/data                                                canmount               on                             default
rpool                                                        mounted                no                             -
rpool                                                        mountpoint             /rpool                         default
rpool                                                        canmount               on                             default
rpool/data                                                   mounted                no                             -
rpool/data                                                   mountpoint             /rpool/data                    default
rpool/data                                                   canmount               on                             default
rpool/data/subvol-102-disk-1                                 mounted                no                             -
rpool/data/subvol-102-disk-1                                 mountpoint             /rpool/data/subvol-102-disk-1  default
rpool/data/subvol-102-disk-1                                 canmount               on                             default
rpool/data/subvol-104-disk-1                                 mounted                no                             -
rpool/data/subvol-104-disk-1                                 mountpoint             /rpool/data/subvol-104-disk-1  default
rpool/data/subvol-104-disk-1                                 canmount               on                             default
rpool/data/subvol-105-disk-1                                 mounted                no                             -
rpool/data/subvol-105-disk-1                                 mountpoint             /rpool/data/subvol-105-disk-1  default
rpool/data/subvol-105-disk-1                                 canmount               on                             default
rpool/data/subvol-107-disk-1                                 mounted                yes                            -
rpool/data/subvol-107-disk-1                                 mountpoint             /rpool/data/subvol-107-disk-1  default
rpool/data/subvol-107-disk-1                                 canmount               on                             default
rpool/data/subvol-108-disk-1                                 mounted                yes                            -
rpool/data/subvol-108-disk-1                                 mountpoint             /rpool/data/subvol-108-disk-1  default
rpool/data/subvol-108-disk-1                                 canmount               on                             default
rpool/data/subvol-109-disk-1                                 mounted                yes                            -
rpool/data/subvol-109-disk-1                                 mountpoint             /rpool/data/subvol-109-disk-1  default
rpool/data/subvol-109-disk-1                                 canmount               on                             default
rpool/data/subvol-110-disk-1                                 mounted                yes                            -
rpool/data/subvol-110-disk-1                                 mountpoint             /rpool/data/subvol-110-disk-1  default
rpool/data/subvol-110-disk-1                                 canmount               on                             default
rpool/data/subvol-112-disk-0                                 mounted                yes                            -
rpool/data/subvol-112-disk-0                                 mountpoint             /rpool/data/subvol-112-disk-0  default
rpool/data/subvol-112-disk-0                                 canmount               on                             default
rpool/data/subvol-112-disk-2                                 mounted                yes                            -
rpool/data/subvol-112-disk-2                                 mountpoint             /rpool/data/subvol-112-disk-2  default
rpool/data/subvol-112-disk-2                                 canmount               on                             default

 

[Stoiko Ivanov]

rpool/data/subvol-105-disk-1 mounted no -

this explains the 'unable to detect OS distribution'

I guess there are some files/directories on /rpool, which were created while the pool was not mounted:

rpool mounted no -

I'd try to export the pool (you need to stop all containers on that pool) - and then do a `find /rpool` - that should give a hint where the problems with automatically mounting are.

Just to be sure - you ran `update-initramfs -k all -u` after setting the cachefile property on both pools?

 

[Cronus89]

Yes i did run update initramfs, basically copy pasted your 3 lines, and verified they had no errors on execution

 

[Cronus89]

Finally got back to this, this is all thats showing for container.

root@prox2:~# find /rpool/
/rpool/
/rpool/data
/rpool/data/subvol-105-disk-1
/rpool/data/subvol-105-disk-1/dev
/rpool/ROOT

 

[Stoiko Ivanov]

/rpool/data/subvol-105-disk-1/dev

you need to remove that directory - then and reboot - that should get the container started