LXC container will not start

[BullToad]

while attempting to setup learning more about containers I made my DNS file on my container immutable inside of the container ( I was trying to get localdomain dns resolution working). After rebooting i now cannot start my container, knowing the issue is the DNS file in the container itself am i able to somehow crack the container open and fix the file? I have a backup so i can easily delete and restore if needed but would rather learn if i can fix this.
Also how do i enable snapshots? They always seem to be grey on all of my containers and i can't figure out why.

 

[BullToad]

If this helps verify it, below is the log file from foreground mode, how do i change this ?


lxc-start 102 20210115175900.641 DEBUG conf - conf.c:run_buffer:326 - Script exec /usr/share/lxc/hooks/lxc-pve-prestart-hook 102 lxc pre-start with output: close (rename) atomic file '/etc/resolv.conf' failed: Operation not permitted

 

[BullToad]

So this is an ask a question solve it yourself type of deal.... I believe i resolved this after digging through some old fourm topics. Namely this one helped https://forum.proxmox.com/threads/lxc-container-didnt-start.27440/

Below is how i solved my issue

root@prox:~# pct mount 102
mounted CT 102 in '/var/lib/lxc/102/rootfs'



root@prox:~# lsattr /var/lib/lxc/102/rootfs/etc/resolv.conf
----i---------e---- /var/lib/lxc/102/rootfs/etc/resolv.conf
root@prox:~# chattr -i /var/lib/lxc/102/rootfs/etc/resolv.conf
root@prox:~# lsattr /var/lib/lxc/102/rootfs/etc/resolv.conf
--------------e---- /var/lib/lxc/102/rootfs/etc/resolv.conf
root@prox:~# pct unmount 102

 

[Stoiko Ivanov]

Great that you found the solution yourself and for taking the time to share it!
Please mark the thread as 'SOLVED' this helps other users who also run into this kind of issue

Thanks!