On Sun, Jun 16, 2013 at 6:49 AM, Steven Shiau <ste...@nchc.org.tw> wrote:
> What was the error messages when grub failed to boot?
> BTW, did you try to use CentoS 6.4 installation CD to do grub-install?
Initially it was 'no boot device'. I did boot a Centos 6.4 install
disk into rescue mode and ran grub-install. After that it would boot
to a 'grub >' prompt but not find a kernel. These machines are very
frustrating to boot manually because they have a large amount of ram,
many NICs, and a raid controller that take a long time to initialize
and you have to hit F12 at just the right time to keep them from
trying PXE on all the NICs. I did a different install where I
specified partitioning with only one traditional /boot partition and
that seems to work in legacy mode - and produced an image that would
clone, so I gave up on trying to fix the initial attempt.
The original /etc/grub.conf was a symlink to
/boot/efi/EFI/redhat/grub.conf and had this:
#boot=/dev/sda1
device (hd0) HD(1,800,64000,0557c1a7-7538-4ba1-b81e-74c4328b8b8d)
default=0
timeout=5
splashimage=(hd0,1)/grub/splash.xpm.gz
hiddenmenu
title CentOS (2.6.32-358.6.2.el6.x86_64)
root (hd0,1)
kernel /vmlinuz-2.6.32-358.6.2.el6.x86_64 ro
root=/dev/mapper/vg_trepdevl01-lv_root rd_NO_LUKS LANG=en_US.UTF-8
rd_NO_MD SYSFONT=latarcyrheb-sun16 rd_NO_DM
rd_LVM_LV=vg_trepdevl01/lv_swap KEYBOARDTYPE=pc KEYTABLE=us
rd_LVM_LV=vg_trepdevl01/lv_root rhgb quiet crashkernel=auto
initrd /initramfs-2.6.32-358.6.2.el6.x86_64.img
The clone probably had an identical copy, but was missing whatever it
took to start the UEFI boot. And that long string in the device line
could have a GUID that needs to be adjusted for the target copy.
--
Les Mikesell
lesmikes...@gmail.com
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