Hi,

I have a CentOS LiveUSB and I was trying to modify the init script there. I extrated the initrd0.img file and I was able to find an init file in the syslinux directory. I added a line

shred -u -n 1 /dev/sdb

at the very first line of it. Yet when I repackage the initrd0.img and try to boot through the live usb, there is nothing changed to the disk (ie the initi script should execute the shred commmand). The disk (/dev/sdb) has two partitions and there is a RHEL OS installed. After the shred command when the system is rebooted, the RHEL OS boots without any issue. Hence the shred command is not working at all.

If I run the shred command from with the live usb, the disks are wiped as expected. Hence I think the problem might be with the init script. Now how can I find the correct init script and effectively run the shred command from live usb?

Thanks

Can you some one at least tell me how to locate the init script of an initrd? I find one in the syslinux directory of my USB driver but which looks different from the one in /etc/syslinux/init of the running initrd.

Thanks