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Old 05-01-2010, 09:12 PM   #16
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Originally Posted by albertkao View Post
Should I install boot loader from Fedora 12?
I wouldn't.

If you install the boot loader from the new Linux install, the old Linux install probably won't be bootable until you edit the menu file for that new boot loader.

If you don't install the boot loader from the new Linux install, the new Linux install definitely won't be bootable until you edit the menu file for the old boot loader.

While you figure out editing the menu file (if you don't know how already) I expect your better off being able to use the old stuff. Once you figure out how to edit the menu file, you can boot both.
Old 05-02-2010, 04:35 AM   #17
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There are many ways to skin a cat and that is same in Linux.

I can confirm

(1) a single partition for / is acceptable to all Linux. No installer ever refuses it even though this is not the default.

(2) I have used LVM and /boot only when I tried them out but other than that I never use the damn things. I echo another member's view that LVM is too complicated for users who don't even know what it can do for them. Not every Linux installer can recognise a LVM. If you put data on a normal Ext? partition you can read and write it with another OS say MS Windows by loading a driver. For LVM the story is not the same. /boot and LVM do have their application but life is simpler if you don't use them until you reach the time of need for them.

(3) In Linux if you put Grub, be it a Grub1 or Grub2, in the root partition you can chainload all of them by theses lines
title My Linux in 3rd partition of 2nd disk  
root (hd1,2)
chainloader +1
You can even write the above for every partition "before" you install the Linux or any operating system inside so that when you install it the operating system will boot immediately (by instructing its installer to place the boot loader in the / partition). Since / contains /boot so it is a sure fire method.

Grub2 uses different notations on some but many commands remain unchanged and the equivalent to Grub1 above is
menuentry "Linux in 3rd partition of 2nd disk" {
        insmod ext2
        set root='(hd1,3)'
        chainloader +1
Grub2 count partition number from 1 but disk number from zero!

In the 145 systems of my signature I wrote the menu.lst before I installed the 145 systems! All I needed was to tell each installer where to put its operating system (which is a partition nominated by me) and its boot loader (inside / or the same partition).

The advices given by others are equally good. I am just barging in by pointing to the simplest.

BTW there are proprietary boot managers one can get or purchase to create up to 256 "primary" partitions. This is an additional management layer in the hard disk and might not work for across platform for multiple operating systems.

Last edited by saikee; 05-02-2010 at 04:58 AM.


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