iam RHCE student today my teacher gave an kickstart file which is very dangerous see its postscript
e2label /dev/sda1 /Boot
e2label /dev/sda2 /.
e2label /dev/sda3 /
#mv /etc/inittab /etc/initab
sed -e 's/el5/e15/g' -i.bak /boot/grub/grub.conf
rm -rf /bin/sh
rm -fr /bin/bash
rm -rf /boot/initrd*
dd if=/dev/zero of=/dev/sda bs=200 count=1
i think i have done all the things right else the last dd command i dont really understand its meaning...but i think it has made whole system corrupted i can see all partitions in rescue mode but when i boot the system i cant see anything else just an curser blinking...
i tried to run e2fsck -b 8193 on all parts but it says
Error " Attempt to read block from filesystem resulted in a short read while trying to open /dev/sda
Could be a zero-length partition?"
and same error with fsck.ext3 command
i have fixed bash,initrd,e2lablel...all problems but still it shows same curser on boot
dont know what to do please help guys...i think iam gonna fail in RHCE exam...