Re: [SLE] Root passwd gone
From: Jerry Feldman (gaf_at_blu.org)
Date: 07/31/05
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Date: Sun, 31 Jul 2005 09:07:44 -0400 To: suse-linux-e@suse.com
On Sat, 30 Jul 2005 14:14:50 -0700 (PDT)
Chaitanya Krishna A <icymist82@yahoo.com> wrote:
> I did use the rescue CD. I don't understand this chroot thing. Can you
> elaborate on that a bit.
chroot(1) allows you to run a shell with a different root file system.
When you boot the rescue system, your root file system is in a ramdisk.
But if you need to reset your root password, what you do is:
1. Mount the root file system from your normal boot HD:
mount /dev/hda1 /mnt
2. make that the new root file system:
chroot /mnt
You will now be in a shell where it thinks that /mnt is the root file
system instead of the ramdisk /
3. Run the appropriate commands such as passwd(1).
4. Exit chroot like you would exit any other shell.
If I remember in your case, you messed up either permissions or
ownership. You do not necessarily need to use chroot for that. All the
executable files in bin, /usr/bin, /sbin should be owned by root.
But there are some exceptions for group. (from /sbin)
-rwxr-sr-x 1 root shadow 6808 2005-03-21 10:53 unix2_chkpwd
-rwxr-sr-x 1 root shadow 37483 2005-03-19 14:22 unix_chkpwd
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