I have installed rhel 5.2 on p-series 570 server. with following configuration
disk : sda and sdb
prep boot partition made on both disk.
all the partition in software raid1 except prep boot partition.
i did not find any option to mirror prep boot partition during installation.
is there any way to mirror the prep boot partition after installation?
ed_pollard 100000TMFH16 Posts
Re: prep boot partition2010-04-06T17:50:55ZThis is the accepted answer. This is the accepted answer.In RHEL 4.2 the following was necessary and is still be viable for RHEL
5.x. The PrepBoot partition is static and therefore does not need to be
kept up to date.
Mirror PrepBoot partition
We need to have the same working PrepBoot partition on the second disk
in order to be able to boot if the first one is absent or broken.
* We are going to mirror the PrepBoot partition using dd:
dd if=/dev/sda1 of=/dev/sdb1
* Now we set the boot flag:
parted /dev/sdb set 1 boot on
Set the boot list
We also need to set the OpenFirmware boot list to contain both disks:
bootlist -m normal sda sdb
bootlist -m normal -o