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<H1>[Mageia-discuss] Boot loader advice please</H1>
<B>Anne Wilson</B>
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TITLE="[Mageia-discuss] Boot loader advice please">annew at kde.org
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<I>Wed Aug 29 11:08:38 CEST 2012</I>
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<PRE>-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
On 29/08/12 09:03, blind Pete wrote:
><i> Antoine Pitrou wrote:
</I>><i>
</I>>><i> On Tue, 28 Aug 2012 17:37:54 +0100 Anne Wilson <<A HREF="https://www.mageia.org/mailman/listinfo/mageia-discuss">annew at kde.org</A>>
</I>>><i> wrote:
</I>>><i>
</I>>>><i> -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
</I>>>><i>
</I>>>><i> On 28/08/12 13:12, Renaud (Ron) Olgiati wrote:
</I>>>>><i> On Tuesday 28 Aug 2012 07:01 my mailbox was graced by a
</I>>>>><i> message from Anne Wilson who wrote:
</I>>>>>>>><i> I'm currently installing M2 as a dual boot onto sdd.
</I>>>>>>>><i> When all data is transferred to the new disk, sda, sdb
</I>>>>>>>><i> and sdc will be removed. I assume that writing the boot
</I>>>>>>>><i> loader (language fails me, at the moment) to sdd is
</I>>>>>>>><i> fine? I know it's a very basic question - brain is
</I>>>>>>>><i> only half-functioning just now due to external
</I>>>>>>>><i> pressures. (sda has the old entry.)
</I>>>>>>><i> Just wanting confirmation that the existence of the old
</I>>>>>>><i> grub won't cause any problems :-)
</I>>>>><i>
</I>>>>>><i> Unfortunately, it does cause problems - of course sda is
</I>>>>>><i> checked before sdd. I assume that I will now need somehow
</I>>>>>><i> get rid of the grub on sda - what's the best way to do
</I>>>>>><i> that? Faint bells are ringing - about re-ordering disks,
</I>>>>>><i> but in these days of using disk IDs I'm not sure whether
</I>>>>>><i> the old ways are still valid, and I really don't want to
</I>>>>>><i> screw things up to the point where recovery is a very big
</I>>>>>><i> job. I'd appreciate thoughts from a mind that is calmer
</I>>>>>><i> and clearer than mine :-)
</I>>>>><i>
</I>>>>><i> Can you change the boot order in BIOS ?
</I>>>>><i>
</I>>>><i> That sounded a good idea. It's so long since I did things like
</I>>>><i> this that I had forgotten it altogether. However....
</I>>>><i>
</I>>>>><i> I have installed M1 on an EeePC, with MSW on the bult-in HD
</I>>>>><i> and M1 on a SD; just reassigned the HD order and the boot
</I>>>>><i> order, and all is well, boots from the SD and offers me the
</I>>>>><i> choices.
</I>>>>><i>
</I>>>>><i> The only complication is when I change SD to install and try
</I>>>>><i> out another OS, I then have to remember to reset the HD and
</I>>>>><i> boot order in the BIOS or it directly boots Windows from the
</I>>>>><i> HD ;-3(.
</I>>>>><i>
</I>>>><i> Mageia appeared to be starting up, but when it came to logging
</I>>>><i> in, it couldn't find the home directories (separate
</I>>>><i> partition).
</I>>><i>
</I>>><i> AFAIR, on some PCs, changing boot order will also change drive
</I>>><i> naming (the BIOS really changes the enumeration order of
</I>>><i> devices). So if you didn't use a "smart" scheme for your
</I>>><i> /etc/fstab entries, like UUID= or LABEL= mounting, mounting those
</I>>><i> partitions will fail.
</I>><i>
</I>><i> Just to be horribly awkward, installers, boot loaders and operating
</I>><i> systems can discover things in different orders. This can be much
</I>><i> worse if you connect and disconnect bits of hardware. There might
</I>><i> even be spinup delays depending on whether there is a hot boot or
</I>><i> a cold boot. (Some BIOSes allow for a time delay on some hard
</I>><i> drives to lessen the startup current.)
</I>><i>
</I>><i> Worst case is you have to arrange the hardware then install, but if
</I>><i> you know which boot sector the BIOS is going to look at you can
</I>><i> problably sort out fstab and the boot loader after installation.
</I>><i>
</I>That's what I'm going to do. I'm following Gary's advice, and
re-installing with only the new drive attached - which is what I had
to do to get Windows installed. I'll mount the others from fstab
later if I need to. Other than that, I have a dock and usb HD
enclosures, so I've plenty ways of getting to the data. It's just not
worth fighting to do it a particular way.
Thanks for the help, everyone.
Anne
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