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Trouble starting/accessing Gentoo VPS [message #9797]

Tue, 23 January 2007 07:20

davewi
Messages: 6
Registered: January 2007

Junior Member

I followed instructions for setting up OpenVZ on Gentoo:
http://gentoo-wiki.com/HOWTO_OpenVZ
Whitch got me a long ways.
I eventually was able to create and start a VPS based on the
http://download.openvz.org/template/precreated/gentoo-200603 17-i686-stage3.tar.gz
However. Although I was able to run commands like:

vzctl set 101 --ipadd 192.168.0.5 --save
vzctl exec 101 /usr/bin/passwd root
vzctl exec 101 /usr/bin/ls

and

vzctl exec 101 /bin/ps ax
  PID TTY      STAT   TIME COMMAND
    1 ?        Ss     0:00 init
 9643 ?        Ss     0:00 /usr/sbin/sshd
 9646 ?        Rs     0:00 /bin/ps ax

getting interactive output to the screen (changing password etc), I couldn't get an interactive shell.
I tried ssh from host os and other computers

ssh root@192.168.0.5
vzctl enter 101
vzctl exec 101 /bin/bash
vzctl exec 101 /bin/sh

all with the same result of it just stopping at the point of initiating the terminal session. SSH made it through the whole authentication.
There are no messages about anything in the hosts /var/log/messages, /var/log/vzctl.log or the VPS client logs.
I was able to simply kill the process with a ctrl-c or kill pid.

Any thoughts? Guides to the right place?
Thanks for the help!!! Very Happy

Dave

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Re: Trouble starting/accessing Gentoo VPS [message #9803 is a reply to message #9797]

Tue, 23 January 2007 09:42

kir
Messages: 1645
Registered: August 2005
Location: Moscow, Russia

Senior Member

Am I got it right that vzctl enter NNN just hangs? If yes, please run strace -Ff on it and post the result here (as an attachment).

Kir Kolyshkin

http://static.openvz.org/userbars/openvz-developer.png

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Re: Trouble starting/accessing Gentoo VPS [message #9811 is a reply to message #9803]

Tue, 23 January 2007 17:36

davewi
Messages: 6
Registered: January 2007

Junior Member

Yes it hangs but hitting Ctrl-c still kills the process and not the VPS.
Atached are the logs from the following commands. (with addresses changed for security)

strace -Ff -ovzctlenter.log vzctl enter 101
strace -Ff -oovzssh.log ssh 192.168.0.17
strace -Ff -oovzbash.log vzctl exec 101 /bin/bash

ssh has to be kiled from a nother shell with kill -15 pid-for-ssh-process

Thanks again for looking at this! Very Happy

Dave

Attachment: vzctlenter.log
(Size: 91.34KB, Downloaded 441 times)
Attachment: ovzssh.log
(Size: 25.67KB, Downloaded 404 times)
Attachment: ovzbash.log
(Size: 101.59KB, Downloaded 427 times)

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Re: Trouble starting/accessing Gentoo VPS [message #9812 is a reply to message #9811]

Tue, 23 January 2007 17:42

kir
Messages: 1645
Registered: August 2005
Location: Moscow, Russia

Senior Member

What kernel do you use?

Kir Kolyshkin

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Re: Trouble starting/accessing Gentoo VPS [message #9813 is a reply to message #9812]

Tue, 23 January 2007 18:24

davewi
Messages: 6
Registered: January 2007

Junior Member

Linux onstar 2.6.9-023stab037openvz #8 Mon Jan 22 12:09:31 PST 2007 i686 Pentium III (Katmai) GNU/Linux
I've attached my make and .config files.

FYI I did :

 vzctl exec 101 /bin/mount    
none on /proc type proc (rw)
none on /proc type proc (rw)
none on /proc type proc (rw)
none on /proc type proc (rw)
none on /proc type proc (rw)

Thanks

Attachment: config
(Size: 32.83KB, Downloaded 420 times)
Attachment: Makefile
(Size: 41.23KB, Downloaded 410 times)

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Re: Trouble starting/accessing Gentoo VPS [message #9814 is a reply to message #9813]

Tue, 23 January 2007 18:59

davewi
Messages: 6
Registered: January 2007

Junior Member

I just downloaded a couple other os templates, created VPSs for them and was able to enter them.
Interesting. I did notice that all the other ones are for i386 while the gentoo is for i686. My kernel is compiled for a Pentium III so that shouldn't be a problem but???

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Re: Trouble starting/accessing Gentoo VPS [message #9815 is a reply to message #9814]

Tue, 23 January 2007 20:09

kir
Messages: 1645
Registered: August 2005
Location: Moscow, Russia

Senior Member

Looks like something is wrong with /dev and/or tty devices.

Oh, perhaps you do not enable CONFIG_LEGACY_PTYS when configuring your kernel? If that's the case, you shall mount /dev/pts in your VE. In Gentoo, this should happen in /sbin/rc script. You can check whether it is mounted or not by doing vzctl exec NNN cat /proc/mounts

Kir Kolyshkin

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Re: Trouble starting/accessing Gentoo VPS [message #9816 is a reply to message #9815]

Tue, 23 January 2007 20:28

davewi
Messages: 6
Registered: January 2007

Junior Member

The kernel is compiled with
CONFIG_LEGACY_PTYS=y

the results of the gentoo based VPS are:

vzctl exec 101 cat /proc/mounts
simfs / simfs rw 0 0
proc /proc proc rw,nodiratime 0 0

and for the fedora core 5 minimal are:

vzctl exec 105 cat /proc/mounts
simfs / simfs rw 0 0
proc /proc proc rw,nodiratime 0 0
tmpfs /var/run tmpfs rw 0 0
tmpfs /var/lock tmpfs rw 0 0
devpts /dev/pts devpts rw 0 0
tmpfs /dev/shm tmpfs rw 0 0
tmpfs /var/run tmpfs rw 0 0
tmpfs /var/lock tmpfs rw 0 0

Thanks again! Very Happy

Dave

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Re: Trouble starting/accessing Gentoo VPS [message #9820 is a reply to message #9816]

Wed, 24 January 2007 00:41

davewi
Messages: 6
Registered: January 2007

Junior Member

The gentoo VPS /sbin/rc does not have stuff for creating devfs or pts.
I haven't found a way to get the /rc into the VPS file system.

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Re: Trouble starting/accessing Gentoo VPS [message #9827 is a reply to message #9820]

Wed, 24 January 2007 07:54

Vasily Tarasov
Messages: 1345
Registered: January 2006

Senior Member

Please, try to add to VE's /etc/fstab:

none    /dev/pts        devpts  rw      0 0

and restart this VE. Then try to enter it.

HTH,
Vasily.

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