#boot from netinstall.iso
#find /dev/sda1 uuuid
blkid
#modfiy /etc/fstab
vi /mnt/sysimages/etc/fstab
#reboot from netinstall.iso

#看hd 名稱 以便掛載LVM
pvs
#掛載LVM
vgchange -ay xxxxx
 
chroot /mnt/sysimages/
grub2-install –force /dev/sda1

#change /dev/sda1’s uuuid in grub.cfg
modfiy /boot/grub2/grub.cfg