use autofs to mount the image

have the belowin /etc/yum.repos.d/Fedora-install-media.repo
name = Fedora 8
gpgcheck = 0
baseurl = file:///mnt/disk/3/ (this line is required to autofs mount the device with the iso image)
file:///misc/Fedora8/ (use autofs to mount the iso for actual use)

Build my Linux Software RAID5 at home

It is great.

I create raid5 with 3 disk
then add one more disk by

mdadm –manage /dev/mdX –add /dev/sd?1
mdadm –grow /dev/mdX –raid-devices=4 (original is 3)

This will reshape at the back. Very slow but find the below to speed up

In Fedora 7, original value
cat /proc/sys/dev/raid/speed_limit_min ==> 1000
echo 100000 > /proc/sys/dev/raid/speed_limit_min

MBR fixes

MBR appears to be blank.
You can add an MBR to this device with
# cat /usr/lib/syslinux/mbr.bin > /dev/sdk