Bug#501306: update-grub fails silently with wrong device.map

[Martin Hansen]

Tirsdag den 28. Oktober 2008 skrev Raphael Hertzog:
> - the installation will still fail and most users have no idea what
>   device.map really is. If you go that route, you should at least give
>   them the command-line to execute to regenerate the device.map

> But in the mean time for Grub 1, wouldn't the best solution simply be
> to regenerate the device.map in case of errors and try again ?
the command-line is already in the script, so a switch and/or env. variable, 
telling grub to overwrite device.map, combined with an error mesage like this 
on grub-probe fail:

"something went wrong with grub-probe. maybe a problem of your device.map file
If You dont' know what device.map is, try regenerate this by running 
grub-update as:
grub-update --replace-devicemap"

path in the region of
-       if ! test -e ${device_map}  ; then
+       if ! test -e ${device_map} -o {switch/env. check} ; then
               echo quit | grub --batch --no-floppy\
             --device-map=${device_map}  /dev/null
       fi

-- 
 Med venlig hilsen / Mojn / Best regards

 Martin Hansen
 Opensource Software Specialist

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