[Ilugc] One Day One GNU/Linux Command (RM)
- From: kapil@xxxxxxxxxxx (Kapil Hari Paranjape)
- Date: Mon Jun 23 13:58:53 2008
Hello,
On Fri, 20 Jun 2008, Kapil Hari Paranjape wrote:
Apropos "rm -rf /".
On Fri, 20 Jun 2008, Arun Khan wrote:
Seriously, has anyone tried it?
I recall doing this once with user-mode-linux but didn't record the
session. You may want to try it with u-m-l or with qemu. It hurts
less when you play in the sand. :-)
You can try this instructive experiment yourself.
Here is the list of commands:
1. aptitude install qemu
2. wget
http://bellard.org/qemu/linux-0.2.img.bz2
3. bzcat linux-0.2.img.bz2 > test.img
4. qemu test.img
This opens a window with the emulator running in it.
In that window you can type
rm -rf /
The system complains a bit about not being able to remove
some directories like /dev/pts, /proc/asound etc.
You are returned to the command prompt since the shell
is a running process.
At this point you need to kill qemu externally.
You can use qemu-img to then examine what files are left in test.img
Regards,
Kapil.
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