[RHEL5] Boot has failed after changing system patition to LVM environment.

root (hd0,0)
 Filesystem type is ext2fs, partition type0x83
Kernel /vmlinuz-2.6.18-128.el5 ro root=/dev/vgsys/root rhgb quiet
   [Linux-bzImage, setup=0x1e00, size=0x1cb41c]
initrd /initrd-2.6.18-128.el5.img
   [Linux-initd @ 0x37d4b000, 0x2a4cef bytes]

Memory for crash kernel (0x0 to 0x0) notwithin permissible range
Red hat nash version 5.1.19.6 starting
Unable to access resume device (/dev/sda5)
mount: could not fine filesystem '/dev/root'
setuproot: moving /dev/ failed: No such file or directory
setuproot: error mounting /proc: No such file or directory
setuproot: error mounting /sys: No such file or directory
switchroot: mount failed: No such file or directory
Kernel panic - not syncing: Attempted to kill init!