Mailinglist Archive: opensuse-factory (175 mails)

["Carlos E. R." <robin.listas@xxxxxxxxxxxxxx>]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1



The Wednesday 2008-07-23 at 14:03 +0200, Michal Marek wrote:

> > > Add the "export PS1" command to /etc/bash.bashrc.local in your factory
> > > installation ;-)  (create the file if it doesn't exist already)
> >
> > Ah, that would be better than on on root's home as I was thinking of
> > doing. However, I don't want to see that prompt on the occasions that I do
> > boot my real factory partition, so the copy-paste approach may have to do
> > for the moment :-)
>
> You could try something like
> # stat -c '%d/%i' / /proc/1/root/
> which should print two identical device/inode pairs a real root and two
> different in a chroot :-).

Cute! :-)

I wrote "/etc/bash.bashrc.local":

UNO=`stat -c '%d/%i' /`
DOS=`stat -c '%d/%i' /proc/1/root/`
if test  $UNO != $DOS ; then
   export PS1=$'\[\E[1m\E[31m\](chroot)_\h:\w # \[\E(B\E[m\]'
fi


But it still need refinements; It works fine for root:

NOT_nimrodel:/etc # su -
(chroot)_nimrodel:~ #


but not for a user (aside from the PS1 needing to be different):

NOT_nimrodel:/etc # su - cer
stat: cannot stat `/proc/1/root/': Permission denied
- -bash: test: 5710/2: unary operator expected
cer@nimrodel:~>


I'd might add the stat command to sudoers, with no password. But it is 
getting complicated, even if I do I also need to detect if it is a user or 
root and change the PS1 differently.

So, for the moment, I can leave it as:

if test $UID = 0 ; then
  UNO=`stat -c '%d/%i' /`
  DOS=`stat -c '%d/%i' /proc/1/root/`
  if test  $UNO != $DOS ; then
     export PS1=$'\[\E[1m\E[31m\](chroot)_\h:\w # \[\E(B\E[m\]'
  fi
fi


As normally I will not be using that chroot as a user. Still...

- -- 
Cheers,
       Carlos E. R.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.4-svn0 (GNU/Linux)

iD8DBQFIiEoTtTMYHG2NR9URAo7jAJwL93NJ6tfsn1oDfjg8ic8whhn+JwCdEv4B
ViNGNBEOnU0Zx+RGUsTwcHs=
=c7Ng
-----END PGP SIGNATURE-----
---------------------------------------------------------------------
To unsubscribe, e-mail: opensuse-factory+unsubscribe@xxxxxxxxxxxx
For additional commands, e-mail: opensuse-factory+help@xxxxxxxxxxxx