I just installed a fresh Slackware64 14RC2 on a spare system for testing
Linux Containers. I have build a container, and managed this to run on a
older Slackware where lxc 0.7.4 is installed. Everything runs smooth.
So I copied over this container to the spare system with 14RC2 installed
and tried the same over a lxc 0.7.5 installation. There I get:
lxc-start -n system1
lxc-start: Device or resource busy - failed to remove previous cgroup '/cgroup/system1'
lxc-start: failed to spawn 'system1'
lxc-start: No such file or directory - failed to remove cgroup '/cgroup/system1'
/dev/sda1 on / type ext4 (rw)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
/dev/sda4 on /home type ext4 (rw)
tmpfs on /dev/shm type tmpfs (rw)
none on /cgroup type cgroup (rw)
I have tried this both with the stock huge kernel (3.2.27) and with a custom
3.4.9, on both the situation is the same. So I tried to recompile the lxc-0.7.4
on the 14RC2 and downgraded it. Now the container is properly booting up.
Hope this help.