Sunday, October 26, 2008

Upgrading from Fedora 8 to Fedora 9 using Preupgrade

In the past, I've upgraded to the latest Fedora version by using the unsupported "yum upgrade". This is potentially dangerous, but it always worked for me. When I read in Red Hat Magazine that Fedora had a new tool to do in-place upgrades, I was excited to try it out.

I tried out Preupgrade on a few Fedora 8 virtual machines and everything went smoothly. Preupgrade had earned my confidence, so I proceeded to "yum -y update && yum -y install preupgrade && preupgrade" on my main Fedora 8 desktop. It downloaded all the RPMs and rebooted into the installer. It upgraded the system and said it was ready for the final reboot. So I rebooted the machine and was greeted by a blinking GRUB prompt. Somehow, GRUB had lost its configuration and could no longer boot my Fedora installation. Doh!

I've never really played around in the GRUB shell, so I never realized how powerful and versatile it is. All I had to do was the following (the {tab} indicates to use the Tab key for filename completion):
kernel (hd0,2)/vmlinuz{tab} root=/dev/sda5
initrd (hd0,2)/initrd{tab}
The system came up and I then did the following to re-write GRUB into the MBR:
grub-install /dev/sda
And we have a working Fedora 9 installation!

No comments:

Search This Blog

Featured Post

Security Onion 2.4.50 now available including some new features and lots of bug fixes!

Security Onion 2.4.50 is now available! It includes some new features for our fellow defenders and lots of bug fixes! https://docs.securityo...

Popular Posts

Blog Archive