[nflug] RHEL/CentOS 5.1 install

[Christopher Hawkins]

I have some notes about what it took to make bootable usb sticks for an
existing system. Many of the same steps will apply and should give you an
idea about making bootable devices with grub. The notes use ext2 though,
which you probably want to change to ext3... 
 
Notes follow:
 
insert usb stick, ---> /dev/sdb
fdisk /dev/sdb
-- n - create partition
-- p - primary partition
-- a - mark bootable
-- w - write changes
-- q - quit
 
mke2fs -j /dev/sdb1
 
tune2fs -c 0 -i 0 /dev/sdb1
 

mkdir /mnt/usbstick
 
mount /dev/sdb1 /mnt/usbstick
 
cp -av /boot /mnt/usbstick
 
grub info
-- find /boot/grub/stage1  ---> (hd0,0) and (hd1,0) or whatever - say hd1,0
is usb, for sake of example
-- root (hd1,0)
-- setup (hd1) ---> messages will scroll, should say successful at end
-- quit
 
vi /mnt/usbstick/boot/grub/device.map
-- change to (hd1) /dev/sdb   ---> **hdx should match whatever parameter you
give setup in grub shell**
 
vi /mnt/usbstick/boot/grub/menu.lst
-- for all kernels, change root line to read:  root  (hd0,0)
 
set bios to boot from usb, done. 


  _____  

From: nflug-bounces at nflug.org [mailto:nflug-bounces at nflug.org] On Behalf Of
Robert Wolfe
Sent: Wednesday, April 30, 2008 12:50 PM
To: nflug at nflug.org
Subject: [nflug] RHEL/CentOS 5.1 install




Hi all!

I have a 250GB external USB hard drive at work and was wondering if it would
be possible to install either RHEL or CentOS on it and be able to boot from
it since my workstation supports that feature?  And, if so, what
preparations would I need to do to make that happen?

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