[Vserver] pty-allocation fails, ssh fails with "stdin: is not a tty"

Hello list,

I'm trying vservers again after some time -- sorry if this is a simple
problem. vserver creation, start and usage from the host seems fine, ssh
login (not startup) fails with with "stdin: is not a tty".

Host:
Ubuntu Breezy with vanilla 2.6.16
patch-2.6.16-vs2.0.2-rc16
util-vserver-0.30.210

Guest:
Debian Sarge, built with:
> vserver 101 build -m debootstrap -n myskel_101 --hostname=myskel --interface eth0:192.168.1.101 --force -- -d sarge

testme.sh:
> ./testme.sh
> Linux-VServer Test [V0.15] Copyright (C) 2003-2006 H.Poetzl
> chcontext is working.
> chbind is working.
> Linux 2.6.16-vs2.0.2-rc16hkhl2 #1 SMP Tue May 2 16:29:13 CEST 2006 i686
> Ea 0.30.210 273/glibc (DSa) <v13,net>
> VCI: 0002:0001 273 03110016 (TbLgnPD)
> ---
> [000]# succeeded.
> [001]# succeeded.
> [011]# succeeded.
> [031]# succeeded.
> [101]# succeeded.
> [102]# succeeded.
> [201]# succeeded.
> [202]# succeeded.

vserver start, vserver enter and apt-get install ssh works fine.
When I try to login via ssh I get this error:

> root@linux:~# ssh 192.168.1.101
> Password:
> stdin: is not a tty
>

/var/log/auth.log:

> May 2 15:04:11 myskel sshd[6774]: debug1: Allocating pty.
> May 2 15:04:11 myskel sshd[6774]: error: openpty: No such file or directory
> May 2 15:04:11 myskel sshd[6774]: error: session_pty_req: session 0 alloc failed

grep PTY /boot/config-2.6.16-vs2.0.2-rc16hkhl2

> CONFIG_UNIX98_PTYS=y
> CONFIG_LEGACY_PTYS=y
> CONFIG_LEGACY_PTY_COUNT=256

inside the vserver:

> myskel:/# tree -apug /dev
> /dev
> |-- [lrwxrwxrwx root root ] MAKEDEV -> /sbin/MAKEDEV
> |-- [crw-rw-rw- root root ] full
> |-- [srw-rw-rw- root root ] log
> |-- [crw-rw-rw- root root ] null
> |-- [crw-rw-rw- root root ] ptmx
> |-- [drwxr-xr-x root root ] pts
> |-- [crw-r--r-- root root ] random
> |-- [crw-rw-rw- root root ] tty
> |-- [crw-r--r-- root root ] urandom
> |-- [prw-r----- root adm ] xconsole
> `-- [crw-rw-rw- root root ] zero

> myskel:/# mount
> /dev/hdv1 on / type ufs (defaults)
> proc on /proc type proc (defaults)
> sysfs on /sys type sysfs (defaults)
> devpts on /dev/pts type devpts (gid=4,mode=620)

> myskel:/# tree -a /proc/self/fd/
> /proc/self/fd/
> |-- 0 -> /dev/pts/6
> |-- 1 -> /dev/pts/6
> |-- 2 -> /dev/pts/6
> `-- 3 -> /proc/8423/fd

So I guess the problem is about the dangling symlinks/not created ptys
under /dev/pts. I found a few small references to this and (maybe?)
simlar problems with /dev/pts but no solution so far.

Any help is appreciated.

Thanks in advance,
Henrik

-- 
Henrik Heil, zweipol Coy & Heil GbR
http://www.zweipol.net/
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