“Kernel-panic – not syncing : VFS : Unable to mount root fs on unknown-block(X,X)” error in Ubuntu

This one seems to be a really famous problem for most folks in Ubuntu 9.10 Karmic Koala. So I had it too. The problem was on the initrd file. It is a kernel related file needed for booting. So i did a simple thing. I replaced initrd.img file of my kernel version with “initrd.lz” file…