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<H1>[Mageia-discuss] Boot loader advice please</H1>
<B>Goh Lip</B>
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TITLE="[Mageia-discuss] Boot loader advice please">lipg at gmx.com
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<I>Tue Aug 28 13:49:37 CEST 2012</I>
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<PRE>On 08/28/2012 07:01 PM, Anne Wilson wrote:
><i> On 28/08/12 11:32, Anne Wilson wrote:
</I>>><i> > On 28/08/12 11:16, Anne Wilson wrote:
</I>>>><i> >> I'm currently installing M2 as a dual boot onto sdd. When all
</I>>>><i> >> data is transferred to the new disk, sda, sdb and sdc will be
</I>>>><i> >> removed. I assume that writing the boot loader (language fails
</I>>>><i> >> me, at the moment) to sdd is fine? I know it's a very basic
</I>>>><i> >> question - brain is only half-functioning just now due to
</I>>>><i> >> external pressures.
</I>>><i> >
</I>>>><i> >> (sda has the old entry.)
</I>>><i> >
</I>>><i> > Just wanting confirmation that the existence of the old grub won't
</I>>><i> > cause any problems:-)
</I>>><i> >
</I>><i> Unfortunately, it does cause problems - of course sda is checked
</I>><i> before sdd. I assume that I will now need somehow get rid of the grub
</I>><i> on sda - what's the best way to do that?
</I>><i>
</I>><i> Faint bells are ringing - about re-ordering disks, but in these days
</I>><i> of using disk IDs I'm not sure whether the old ways are still valid,
</I>><i> and I really don't want to screw things up to the point where recovery
</I>><i> is a very big job. I'd appreciate thoughts from a mind that is calmer
</I>><i> and clearer than mine:-)
</I>><i>
</I>><i> Anne
</I>
Assuming you're installing and not cloning (dd) M2 to sdd, there should
not be any problem with bootloader/grub. However there are 2 things you
need to watch out for.
o when installing boot loader, you're asked to confirm installing to
'sda', make sure that is the 'master drive'. To confirm disks, at root
terminal, "fdisk -lu" or "blkid" or "parted -l", If the 'master drive'
is not sda, but something else, go to MCC and reinstall boot loader to
the right one, ie., specify 'sdb' or 'sdc' (the right one).
o The grub entry for grub-legacy contains
kernel (hdx,y)/boot/......
initrd (hdx,y)/boot/.......
even as it has ROOT=LABEL or ROOT=UUID..
So the entry (hdx,y) {x and y are numbers} may change with BIOS and if
Mageia don't boot up, you need to manually change this x figure to make
sure it uses the right one. (grub2 don't have this problem)
Finally, should you remove sda, sdb or sdc, watch out for the above 2
points again.
Hope this would somehow convince the need for grub2 in Mageia
(besides btrfs, UEFI, etc....)
Regards - Goh Lip
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