Re: [CentOS] mount the wrong device after system recovery

On Tue, Feb 8, 2011 at 4:31 PM, Xinhuan Zheng xzheng@christianbook.com wrote:

My grub.conf is pointing to sdb1 for /. I've corrected to use /dev/vg0/lv1. But after rebooting, I am getting the same error. I guess I need to rebuild initrd.img file. How do I rebuild that file?

You'd use the mkinitrd utility and specify the name of the new initrd and the kernel version.

To create from the current settings:

Update your /etc/modprobe.conf mkinitrd /boot/my_new_initrd-`uname -r`.img `uname -r`

Then update your /etc/grub.conf and update the initrd line..

You can specify an alternate kernel than the one running also. This is useful if you're rebooting into a new kernel and need to preload the modules.