Package: os-prober
Version: 1.33
The version of os-prober in ubuntu 9.10 alpha 6 fails to detect the recovery
partition on my acer laptop, instead detecting it as a second vista install.
This leads to two identical options in grub, which is confusing.
After a little reading I think this can be fixed in a generic way, since
Microsoft has some guidelines for marking recovery partitions.
After adding the following lines to /usr/lib/os-probes/mounted/20microsoft
(near the bottom) my recovery partition is properly labeled in Grub.
This code should be safe, since the FS was already confirmed to be a MS one.
Apologies for the sed ugliness, but sfdisk wants the partition id as a separate
parameter ('/dev/sda 1' instead of '/dev/sda1'), so I couldn't see any other
way.
# Detect recovery partitions by comparing partition id to 27 (hex value, so
string comparison)
# For more details on recovery partitions:
#
http://blogs.msdn.com/winre/archive/2007/01/12/how-to-install-winre-on-the-hard-disk.aspx
if partid=$(sfdisk --print-id $(echo $partition | sed 's/^\(.*\)\([0-9]\)$/\1
\2/')) && [ $partid = "27" ] ; then
long="Recovery partition for $long"
fi
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