[Lxc-users] Problem with: lxc.autodev=1

[Frederic Crozat]

Le samedi 20 avril 2013 à 21:13 +0200, Andreas Otto a écrit :
> Hi all,
> 
> my problem: the "autodev" create devices with wrong permissions:
> 
>  > ls -ald /dev/*
> crw-rw---- 1 root tty  136, 16 Apr 20 18:34 /dev/console
> lrwxrwxrwx 1 root root      11 Apr 20 18:34 /dev/core -> /proc/kcore
> lrwxrwxrwx 1 root root      13 Apr 20 18:34 /dev/fd -> /proc/self/fd
> crwxr-xr-x 1 root root   1,  7 Apr 20 18:34 /dev/full
> drwxr-xr-x 2 root root       0 Apr 20 18:34 /dev/hugepages
> prw------- 1 root root       0 Apr 20 18:34 /dev/initctl
> lrwxrwxrwx 1 root root       7 Apr 20 18:34 /dev/kmsg -> console
> srw-rw-rw- 1 root root       0 Apr 20 18:34 /dev/log
> drwxrwxrwt 2 root root      40 Apr 20 18:34 /dev/mqueue
> crwxr-xr-x 1 root root   1,  3 Apr 20 18:34 /dev/null
> lrwxrwxrwx 1 root root      13 Apr 20 18:34 /dev/ptmx -> /dev/pts/ptmx
> drwxr-xr-x 2 root root       0 Apr 20 18:34 /dev/pts
> crwxr-xr-x 1 root root   1,  8 Apr 20 18:34 /dev/random
> drwxrwxrwt 2 root root      40 Apr 20 18:34 /dev/shm
> lrwxrwxrwx 1 root root      15 Apr 20 18:34 /dev/stderr -> /proc/self/fd/2
> lrwxrwxrwx 1 root root      15 Apr 20 18:34 /dev/stdin -> /proc/self/fd/0
> lrwxrwxrwx 1 root root      15 Apr 20 18:34 /dev/stdout -> /proc/self/fd/1
> crwxr-xr-x 1 root root   5,  0 Apr 20 18:34 /dev/tty
> crw-rw---- 1 root tty  136, 12 Apr 20 18:34 /dev/tty1
> crw-rw---- 1 root tty  136, 13 Apr 20 18:34 /dev/tty2
> crw-rw---- 1 root tty  136, 14 Apr 20 18:34 /dev/tty3
> crw-rw---- 1 root tty  136, 15 Apr 20 18:34 /dev/tty4
> crwxr-xr-x 1 root root   1,  9 Apr 20 18:34 /dev/urandom
> crwxr-xr-x 1 root root   1,  5 Apr 20 18:34 /dev/zero
> 
> 
> check the permissions for "/dev/tty" or "/dev/null" as example.

Are you checking the permissions when the container is running or after
it was run ? 

> a "normal" user is not able to use these devices ...
> example: login into an non-root-user account.
> 
>  > ssh dev01 at nhi2
> ...
> Last login: Sat Apr 20 18:34:29 2013 from linux02
> Have a lot of fun...
> -bash: /dev/null: Permission denied
> -bash: /dev/null: Permission denied
> -bash: /dev/null: Permission denied
> 
> Im using opensuse 12.3 on the host and guest.
> The gues is a fresh lxc container.

Just to be sure: did you upgrade your system to 12.3 ? It could have an
"old" cache for the container generation (it should be fixed these days
when upgrading distro but you never know..).

-- 
Frederic Crozat <fcrozat at suse.com>
SUSE