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Re: fixing the "grub loading stage1.5" hanging error

From: Tracy Kirk
Subject: Re: fixing the "grub loading stage1.5" hanging error
Date: Tue, 30 Oct 2007 07:04:39 -0600

To answer your question, no, we are not umounting before installing grub, and yes, we are syncing after installing grub.


Here is the process that we are following to install grub.

It used to be a lot simpler, but we keep adding changes in an attempt to resolve the problem we are seeing with the corrupt stage2 file.

For example, the extra “setup (hd0,0)” was added.

However unlikely, we even added the extra sleep at the end, in case journaling was the issue.

After installing grub, the system is rebooted and it goes through the natural shutdown process, including unmounting the disk.



if [ -d /boot/grub -a -d /usr/local/lib/grub/i386-pc ] ; then

            mv /boot/grub /boot/grub.old

            mkdir -p /boot/grub

            cp -f /usr/local/lib/grub/i386-pc/* /boot/grub/

            cp -f /boot/grub.old/menu.lst /boot/grub/

            /usr/local/sbin/grub-set-default 0



            echo "Can not find grub stage files and such that we need for installing..."


/usr/local/sbin/grub --batch --device-map=/boot/grub/device.map --config-file=/boot/grub/menu.lst <<EOT

root (hd0,0)

setup (hd0,0)

setup (hd0)



if [ -d /boot/grub.old ] ; then

            rm -rf /boot/grub.old


touch /tmp/.REBOOT


# Wait for journaling on ext3.

sleep 6

exit 0


tracy kirk | senior firmware engineer

11734 South Election Road
Salt Lake City, Utah 84020-6432
United States
p. 801.523.3150  
f. 801.523.3199

e. address@hidden
w. www.control4.com

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