On 10/4/07, Raj Kiran Grandhi <grajkiran@gmail.com> wrote:
> Manu Hack wrote:
> >>>
> >> If a couple of reboots is ok for you, the following method might work.
> >
> > Yes, and thanks a lot for the instruction.
> >
> >> You can use 'dd' to clone hda2 to hda1. Boot your system with
> >> "init=/bin/bash". When you get to the bash prompt, do
> >>
> >> bash# dd if=/dev/hda2 of=/dev/hda1
> >>
> >> When that completes, you would have your installation available on both
> >> the partitions. The 5GB hda1 would contain a filesystem that is only 1GB
> >> large. Restart your system. You would boot normally with a 1GB root.
> >>
> >> Edit "/boot/grub/menu.lst" and add an entry for the linux on hda1.
> >> set root to (hd0,0) and append root=/dev/hda1 for the kernel line of the
> >> new entry.
> >>
> >> mkdir /tmp/newroot; mount /dev/hda1 /tmp/newroot
> >>
> >> Edit the file /tmp/newroot/boot/grub/menu.lst and replace (hd0,1) with
> >> (hda0,0) and root=/dev/hda2 with root=/dev/hda1. Similarly fix the root
> >> filesystem entry in /tmp/newroot/etc/fstab by changing /dev/hda2 to
> >> /dev/hda1.
> >>
> >> Now you should be able to boot into either of your two partitions.
> >
> > So I got two grub/menu.lst, but how grub knows which one to read (one
> > is hda1 and one is hda2)?
>
> Grub will read the menu.lst from the partition that contained
> /boot/grub/menu.lst when "grub-install" was run.

So if I want grub to read the menu.lst from hda1, I should boot in
using hda1 and run grub-install /dev/hda1 and then supposedly I can
use hda2 for other storage?

>
> >> Feel free to post any problems you may have and make sure you take a
> >> backup of important files before proceeding.
> >>
> >
> > Finally I followed your instruction and now I got what I wanted.
> > Really thanks a lot and hopefully this can others too. (not to
> > mention I learned a lot!)
>
> This is one important reason why I am in love with linux. A little
> curiosity and it lets you learn everything you care about hardware/software.

Yes, Linux is so good. After dual booting for a while I don't even
want/need to use M$ anymore and that's why I want to kill M$
completely. (not to mention the label on the laptop!)


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