Hi
Hmm. Not only how to chroot - but to really tie it down, how to su and
chroot without copying in a load of /lib, /bin etc
Heres my solution...
my uml is on /home/todd - under a user todd
make a /home/todd/tmp
copy linux into /home/todd/linux (chmod a+x)
make a /home/todd/proc (so we have a /proc/mm in the chroot)
mount (as root) proc on /home/todd/proc
then run this perl script (i tried doing it with the shell, but its an
arse about as you need bash and su copying into your chroot, which means
you nead to get the .so's these need, and /etc/passwd etc)
#!/usr/bin/perl
use POSIX;
#chroot("/home/todd");
POSIX::setuid(1004); # todds uid
POSIX::setgid(100); # todds gid
#print "uid=",POSIX::getuid()," gid=",POSIX::getgid(),"\n";
exec( "./linux", "ubd0=./todd-root", "ubd1=./todd-swap",
"devfs=nomount","mem=200M", "con=null", "eth0=tuntap,,,192.168.30.41");
To get the tuntap network working too, I had to
copy /lib/libc.so.6 into /home/todd/lib/libc.so.6
copy /usr/bin/uml_net into /home/todd/usr/bin/uml_net
mkdir /home/todd/dev/net
mknod /home/todd/dev/net/tun c 10 200
YMMV !!!
Cheers
Dave
On Thu, 2005-04-07 at 02:01 -0300, itamar wrote:
> how to run a uml in chroot mode ?
>
>
> Itamar Reis Peixoto
> +55 (34) 3238 3845
> e-mail : [EMAIL PROTECTED]
> http://www.ispbrasil.com.br
>
>
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