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tobr
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 Posted: Wed Nov 14, 2007 9:16 am Post subject: Running another distro (with X) in a chroot [solved] |
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Hello.
At the moment I’m playing with chroots and I’d be interested to run another distro (and perhaps later a 32bit Gentoo, as I’m on amd64) in a chroot. I’d like to use my main Gentoo desktop at the same time as the desktop of the other distro.
So I installed debian (via dev-util/debootstrap) into /srv/chroots/debian, installed KDE, chrooted into it and did /etc/init.d/kdm start. This worked, X started on :1 and I could log in. But the sound doesn’t work, there’s no 3D accel (I have an Intel i965) and I can’t start konsole/xterm (something about no permissions to create a pty). I mounted my main /dev, /proc and /sys into the chroot but it made no difference. My user is in the video/audio/cdrom/plugdev groups, so I don’t think that’s the problem. So I wanted to ask if there’s something else to do or if it is impossible to do this. Has somebody done this before? I couldn’t find any howtos/docs but perhaps I searched for the wrong things.
Thanks in advance for any info.
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Last edited by tobr on Sun Jan 20, 2008 7:15 pm; edited 1 time in total |
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Hopeless
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tobr
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| Posted: Wed Nov 14, 2007 10:05 am Post subject: |
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| Hopeless wrote: | | For the pty issue I think you might actually need to mount --bind /dev/pts in the chroot as well as /dev. |
That worked, thank you 
| Quote: | | Also, if you want to start some x app within the chroot but using the running "host" X server you need to --bind /tmp as well. |
Yes, I tried that before but it was not entirely satisfying to me. I want to check out some other desktops.
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tobr
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| Posted: Sun Jan 20, 2008 7:14 pm Post subject: |
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Just for reference I solved all my problems.
For the audio: It was a problem with permissions in /dev and wrong group<->gid mapping in the chroot.
For the video: 3D accel is possible in a chroot but only one X server seems to able be able to claim this feature (so stop the Gentoo one if you need 3D in the chroot). The problem was also a permission one and my Debian install missed libgl1-mesa-dri, so be sure to install it if you want to try the same.
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