/dev/disk/by-uuid seems to be only created when the partition table gets
reread after a new filesystem has been created.
So here's a patch which does it with sfdisk.
I wasn't sure if some devices like e.g. /dev/mapper/* should be ignored.
mdraid devices can have partitions so they should be tried too.
--
Felix Zielcke
Proud Debian Maintainer and GNU GRUB developer
2009-10-28 Felix Zielcke <fziel...@z-51.de>
* util/grub.d/10_linux.in: Try to reread partition table with
sfdisk before we check if UUIDs can be used.
Index: util/grub.d/10_linux.in
===================================================================
--- util/grub.d/10_linux.in (revision 2668)
+++ util/grub.d/10_linux.in (working copy)
@@ -35,6 +35,13 @@ case ${GRUB_DEVICE} in
;;
esac
+# Try to reread partition table. In case a fresh filesystem has been created
+# /dev/disk/by-uuid doestn't yet exist.
+if which sfdisk /dev/null ; then
+ GRUB_DEVICE_DISK=`echo ${GRUB_DEVICE} | sed -e "s/[0-9]*$//"`
+ sfdisk -R ${GRUB_DEVICE_DISK} 2>/dev/null
+fi
+
if [ "x${GRUB_DEVICE_UUID}" = "x" ] || [ "x${GRUB_DISABLE_LINUX_UUID}" = "xtrue" ] \
|| ! test -e "/dev/disk/by-uuid/${GRUB_DEVICE_UUID}" ; then
LINUX_ROOT_DEVICE=${GRUB_DEVICE}
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