7eebaff409
Added simply for convenience until this, or an equivilant, change is merged in the upstream grub2 source. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Issue #847
32 lines
1.4 KiB
Diff
32 lines
1.4 KiB
Diff
diff -up ./util/grub-mkconfig.in.original ./util/grub-mkconfig.in
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--- ./util/grub-mkconfig.in.original 2012-03-27 13:03:49.475388000 -0700
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+++ ./util/grub-mkconfig.in 2012-03-27 13:06:38.948080000 -0700
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@@ -140,9 +140,24 @@ if test -e ${GRUB_PREFIX}/device.map ; t
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${grub_mkdevicemap}
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fi
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-# Device containing our userland. Typically used for root= parameter.
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-GRUB_DEVICE="`${grub_probe} --target=device /`"
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-GRUB_DEVICE_UUID="`${grub_probe} --device ${GRUB_DEVICE} --target=fs_uuid 2> /dev/null`" || true
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+# Attempt to detect if the root file system is in ZFS first
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+unset GRUB_DEVICE
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+unset GRUB_DEVICE_BOOT
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+getzfsgrubdevice() {
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+ mount | while read dev dummy mntpnt dummy2 fstype rest ; do
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+ if [ -n "$GRUB_DEVICE" ] ; then break ; fi
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+ if [ "$fstype" != "zfs" ] ; then continue ; fi
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+ if [ "$mntpnt" != "/" ] ; then continue ; fi
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+ GRUB_DEVICE=`fstab-decode echo "$dev"`
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+ GRUB_DEVICE="ZFS=$GRUB_DEVICE" ; echo "$GRUB_DEVICE" ; break
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+ done
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+}
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+GRUB_DEVICE=`getzfsgrubdevice`
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+if [ -z "$GRUB_DEVICE" ] ; then
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+ # Device containing our userland. Typically used for root= parameter.
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+ GRUB_DEVICE="`${grub_probe} --target=device /`"
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+ GRUB_DEVICE_UUID="`${grub_probe} --device ${GRUB_DEVICE} --target=fs_uuid 2> /dev/null`" || true
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+fi
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# Device containing our /boot partition. Usually the same as GRUB_DEVICE.
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GRUB_DEVICE_BOOT="`${grub_probe} --target=device /boot`"
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