Public SourceMage Discussion List

[Mads Laursen <dossen+sgl AT daimi.au.dk>]

On 11/12/02 13.19, Duane Macolm wrote:
> Dufflebunk wrote:
> 
[snip]
> >At least one person has set up test systems in a chroot. There is some 
> >info on this on the wiki. Again, can anyone else fill in the limits of 
> >such a chrooted system?
> >
> I have seen the chroot stuff in the wiki, this is where I got the idea 
> that I may be able to use it. 

Since I happen to have played around a bit with chroot, I might as
well add a few comments.

First of all, it is perfectly possible to have a sourcemage system
working in chroot. I have one running glibc-2.2.5 (it makes some
update scripts for Loki games happy).
  (pts/2)root@leela:~# ls /
  1                   glibc-2.2.5-chroot  root
  bin                 home                sbin
  boot                lib                 swapfile
  dev                 locale              tex
  devices             mnt                 tmp
  etc                 opt                 usr
  fonts               proc                var
  (pts/2)root@leela:~# my-chroot /glibc-2.2.5-chroot/
  root@leela:/# ls
  bin   dev      etc   lib  opt                proc  sbin    tmp  var
  boot  devices  home  mnt  override-grimoire  root  setup~  usr

The chroot environment was built by unpacking a sufficiently old iso,
chrooting to it, getting the sorcery up to date (quite easy when you
do not need to worry about fucking your system up), fixing the a few
things (like getting an old glibc spell, and makeing sure it is in a
local grimoire, before the sorcery one) and rebuilding.

Changing to the chroot is done using this script (the mounts may
differ depending on your needs (but entries like proc, dev and devices
might be a good idea):

(pts/2)root@leela:~/bin$ cat my-chroot 
#!/bin/bash
ROOT=$1;

mount --bind /proc $ROOT/proc
mount --bind /devices $ROOT/devices
mount --bind /dev $ROOT/dev
mount --bind /var/spool/sorcery/ $ROOT/var/spool/sorcery/
mount --bind /root $ROOT/root
mount --bind /home $ROOT/home

chroot $ROOT /usr/bin/env -i HOME=/root TERM=$TERM PS1='\u:\w\$ ' \
       PATH=/bin:/usr/bin:/sbin:/usr/sbin /bin/bash --login

umount $ROOT/proc
umount $ROOT/devices
umount $ROOT/dev
umount $ROOT/var/spool/sorcery/
umount $ROOT/root
umount $ROOT/home

/dossen