[Lxc-users] lxc-start-ephemeral fails unless run as root?

[Serge Hallyn]

Try in quantal.  I think Stephane got it all fixed back up there.

Looking at the diff, pulling the lxc-start-ephemeral out of the
quantal package and using it in precise might work just fine.

Quoting Dan Kegel (dank at kegel.com):
> Not sure what's up with this, but on my ubuntu 12.04.1 system,
> lxc-start-ephemeral seems to trip over its shoelaces:
> $ lxc-start-ephemeral -o precise5-ubu10
> Setting up ephemeral container...
> mkdir: cannot create directory
> `/var/lib/lxc/precise5-ubu10-temp-ZXnntF1/rootfs': Permission denied
> mount: mount point /var/lib/lxc/precise5-ubu10-temp-ZXnntF1/rootfs
> does not exist
> cp: cannot stat `/var/lib/lxc/precise5-ubu10-temp-ZXnntF1/config':
> Permission denied
> cp: cannot stat `/var/lib/lxc/precise5-ubu10-temp-ZXnntF1/fstab':
> Permission denied
> cp: cannot stat
> `/var/lib/lxc/precise5-ubu10-temp-ZXnntF1/rootfs.hold': Permission
> denied
> sed: can't read /var/lib/lxc/precise5-ubu10-temp-ZXnntF1/fstab: No
> such file or directory
> sed: can't read /var/lib/lxc/precise5-ubu10-temp-ZXnntF1/config: No
> such file or directory
> sed: can't read
> /var/lib/lxc/precise5-ubu10-temp-ZXnntF1/rootfs/etc/hostname: No such
> file or directory
> sed: can't read
> /var/lib/lxc/precise5-ubu10-temp-ZXnntF1/rootfs/etc/hosts: No such
> file or directory
> cp: cannot stat `/var/lib/lxc/precise5-ubu10-temp-ZXnntF1/fstab': No
> such file or directory
> /usr/bin/lxc-start-ephemeral: line 160:
> /var/lib/lxc/precise5-ubu10-temp-ZXnntF1/fstab.old: Permission denied
> mv: cannot stat `/var/lib/lxc/precise5-ubu10-temp-ZXnntF1/config': No
> such file or directory
> /usr/bin/lxc-start-ephemeral: line 160:
> /var/lib/lxc/precise5-ubu10-temp-ZXnntF1/config.old: Permission denied
> Starting up the container...
> 
> And then it hangs.
> 
> Adding a sudo to that mkdir gets rid of a couple errors, but then I still see
> 
> 
> $ lxc-start-ephemeral -o precise5-ubu10
> Setting up ephemeral container...
> cp: cannot stat `/var/lib/lxc/precise5-ubu10-temp-G5kNWUW/config':
> Permission denied
> cp: cannot stat `/var/lib/lxc/precise5-ubu10-temp-G5kNWUW/fstab':
> Permission denied
> cp: cannot stat
> `/var/lib/lxc/precise5-ubu10-temp-G5kNWUW/rootfs.hold': Permission
> denied
> sed: can't read /var/lib/lxc/precise5-ubu10-temp-G5kNWUW/fstab: No
> such file or directory
> sed: can't read /var/lib/lxc/precise5-ubu10-temp-G5kNWUW/config: No
> such file or directory
> cp: cannot stat `/var/lib/lxc/precise5-ubu10-temp-G5kNWUW/fstab': No
> such file or directory
> /usr/bin/lxc-start-ephemeral: line 160:
> /var/lib/lxc/precise5-ubu10-temp-G5kNWUW/fstab.old: Permission denied
> mv: cannot stat `/var/lib/lxc/precise5-ubu10-temp-G5kNWUW/config': No
> such file or directory
> /usr/bin/lxc-start-ephemeral: line 160:
> /var/lib/lxc/precise5-ubu10-temp-G5kNWUW/config.old: Permission denied
> Starting up the container...
> 
> and it still hangs.
> 
> Running with bash -x shows:
> ...
> + sudo cp /var/lib/lxc/precise5-ubu10-temp-UZ8wtxV/fstab
> /var/lib/lxc/precise5-ubu10-temp-UZ8wtxV/fstab.old
> + sudo tee /var/lib/lxc/precise5-ubu10-temp-UZ8wtxV/fstab
> /usr/bin/lxc-start-ephemeral: line 160:
> /var/lib/lxc/precise5-ubu10-temp-UZ8wtxV/fstab.old: Permission denied
> + '[' -n '' ']'
> + c=/var/lib/lxc/precise5-ubu10-temp-UZ8wtxV/config
> + sudo mv /var/lib/lxc/precise5-ubu10-temp-UZ8wtxV/config
> /var/lib/lxc/precise5-ubu10-temp-UZ8wtxV/config.old
> + sudo tee /var/lib/lxc/precise5-ubu10-temp-UZ8wtxV/config
> /usr/bin/lxc-start-ephemeral: line 160:
> /var/lib/lxc/precise5-ubu10-temp-UZ8wtxV/config.old: Permission denied
> + sudo rm -f /var/lib/lxc/precise5-ubu10-temp-UZ8wtxV/config.old
> + start_container
> ...
> 
> Mysterious.  Whereas just running the whole script as root works.
> 
> Maybe it's time to purge all the sudo's out of it.
> 
> Or maybe the great initctl explosion of '12 has messed with my machine...
> - Dan
> 
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