Mark Seger wrote:
>
> The key problem as I've said before, is SystemConfigurator cannot ask
> grub to generate a new device map because the logic in grub to do this
> is busted. Either generate one in SC independent of grub or use the one
> that's already there. As far as the --force-lba switch on grub-install,
> I'll have to let Andrea explain why that's needed as I'm not a grub person.
>
Regarding the device.map problem if it has been fixed in GRUB ok, we
could simply suggest to update GRUB to the last release.. ;-) otherwise
the other solution (as I said to Mark) could be to create the device.map
inside systemconfigurator, in fact we have all informations to do it,
we've simply to create a list of entries like:
(hdN) <linux_device>
where N = 0, 1 , 2, ...
Using the device.map in the image is not a good solution.. this approach
fails if you have to install heterogeneous clients that doesn't have the
same type of disks.
The other problem is the --force-lba option. This option must be
specified to force grub to use the LBA geometry. Some buggy BIOSes
return a wrong LBA bitmap even if they correctly support LBA. In this
cases we must force GRUB to use LBA instead of CHS using --force-lba
argument.
IMHO we could always use the --force-lba for default, since all the
newer BIOSes have the LBA support. Looking at the GRUB manpage it
reports that:
If you have an Adaptec 2940 with BIOS
revision 1.21 ( newer ones just work and older ones don't make the
false claim ), or otherwise experience grub hanging after stage1,
you can try to use the option `--force-lba=off', as long as all
disk blocks involved in booting reside within the first 1024
cylinders.
So it seems that only this Adaptec with the 1.21 BIOS revision will not
work... if there's still someone that uses this particular controller
well.. we can always add a note on wiki... ;-)
> As an aside, even thought the post-install script seems to have worked,
> I couldn't find it on the client! The README says it should be in
> /tmp/post-install but that directory doesn't even exist! Does all this
> get removed after execution?
yes, post-install scripts are removed after their execution. We should
add a note in the README...
Regards,
-Andrea
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