The situation: i try to boot centos in new environement(the vg name is changed) i edit the menu.lst of grub,did grub-install,then mkinitrd `uname -r`.img `uname -r` but when i reboot the new vg is not find and i obtain only a kernel panic 
The situation: i try to boot centos in new environement(the vg name is changed) i edit the menu.lst of grub,did grub-install,then mkinitrd `uname -r`.img `uname -r` but when i reboot the new vg is not find and i obtain only a kernel panic