Forced by a project@work I had to install GRUB2 in Fedora 14. Here is a simple description of what I have done to got it running:
1. install the new „grand unified bootloader package“ by
Attention: at this time, Fedora uses multislot – GRUB Legacy (0.9x) and GRUB2 could be installed parallel.
2. edit/create the new /boot/grub2/grub.cfg
2.1 My old /boot/grub/grub.conf looks like:
In the snipped above you could see that GRUB2 is allready inserted into the grub.conf of your old GRUB. You could use it for boot into the GRUB command-line.
2.2. create a new grub.cfg
Important: in GRUB Legacy (the old GRUB) the partition-numbering starts with 0. In GRUB2 the numbering starts with 1. So hd0,0 from above becomes hd0,1 eg.
Check/note on witch device/partition your /boot and root is located and witch UUID it has assigned (mount gives you the device /dev/sd…, blkid the associated UUID), sample:
3. Now run
The output is placed into /boot/grub2/grub.cfg.new – do a cat on it and compare the UUID for /boot and root with the ones from above (and maybe compare against your old grub.conf) … and yes, hd0,0 is now hd0,1 .
4. The final step: install the new GRUB on the disc…
First only test that everything is fine… (without writing to MBR assuming the target drive is /dev/sda):
Now lets use the real bullet:
And it works. For me. Now.
GRUB2 offers 1000nds new possibilities (ohh, it has a LUA-shell, there is module-support, submenus, theming, …)
For learning: boot the core.img, load kernel and ramdisk by hand. boot. check console commads ls & cat.
Have a look at: