107 lines
4.5 KiB
Diff
107 lines
4.5 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Peter Jones <pjones@redhat.com>
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Date: Thu, 4 Sep 2014 16:49:25 -0400
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Subject: [PATCH] Add GRUB_DISABLE_UUID.
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This will cause "search --fs-uuid --set=root ..." not to be generated by
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grub2-mkconfig, and instead simply attempt to use the grub device name
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as it understands it.
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Signed-off-by: Peter Jones <pjones@redhat.com>
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---
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docs/grub.texi | 7 +++++++
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util/grub-mkconfig.in | 22 +++++++++++++++++++---
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util/grub-mkconfig_lib.in | 4 ++--
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3 files changed, 28 insertions(+), 5 deletions(-)
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diff --git a/docs/grub.texi b/docs/grub.texi
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index 2adfa97be..2fd32608c 100644
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--- a/docs/grub.texi
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+++ b/docs/grub.texi
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@@ -1441,6 +1441,13 @@ enable the use of partition UUIDs, set this option to @samp{false}.
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If this option is set to @samp{true}, disable the generation of recovery
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mode menu entries.
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+@item GRUB_DISABLE_UUID
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+Normally, @command{grub-mkconfig} will generate menu entries that use
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+universally-unique identifiers (UUIDs) to identify various filesystems to
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+search for files. This is usually more reliable, but in some cases it may
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+not be appropriate. To disable this use of UUIDs, set this option to
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+@samp{true}.
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+
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@item GRUB_VIDEO_BACKEND
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If graphical video support is required, either because the @samp{gfxterm}
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graphical terminal is in use or because @samp{GRUB_GFXPAYLOAD_LINUX} is set,
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diff --git a/util/grub-mkconfig.in b/util/grub-mkconfig.in
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index bc5a3f175..b0a8626dd 100644
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--- a/util/grub-mkconfig.in
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+++ b/util/grub-mkconfig.in
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@@ -133,12 +133,12 @@ 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 ${GRUB_DEVICE} --target=fs_uuid 2> /dev/null`" || true
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-GRUB_DEVICE_PARTUUID="`${grub_probe} --device ${GRUB_DEVICE} --target=partuuid 2> /dev/null`" || true
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+GRUB_DEVICE_UUID_GENERATED="`${grub_probe} --device ${GRUB_DEVICE} --target=fs_uuid 2> /dev/null`" || true
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+GRUB_DEVICE_PARTUUID_GENERATED="`${grub_probe} --device ${GRUB_DEVICE} --target=partuuid 2> /dev/null`" || true
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# Device containing our /boot partition. Usually the same as GRUB_DEVICE.
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GRUB_DEVICE_BOOT="`${grub_probe} --target=device /boot`"
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-GRUB_DEVICE_BOOT_UUID="`${grub_probe} --device ${GRUB_DEVICE_BOOT} --target=fs_uuid 2> /dev/null`" || true
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+GRUB_DEVICE_BOOT_UUID_GENERATED="`${grub_probe} --device ${GRUB_DEVICE_BOOT} --target=fs_uuid 2> /dev/null`" || true
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# Filesystem for the device containing our userland. Used for stuff like
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# choosing Hurd filesystem module.
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@@ -158,6 +158,21 @@ if test -f ${sysconfdir}/default/grub ; then
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. ${sysconfdir}/default/grub
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fi
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+if [ "x$GRUB_DISABLE_UUID" != "xtrue" ]; then
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+ if [ -z "$GRUB_DEVICE_UUID" ]; then
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+ GRUB_DEVICE_UUID="$GRUB_DEVICE_UUID_GENERATED"
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+ fi
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+ if [ -z "$GRUB_DEVICE_BOOT_UUID" ]; then
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+ GRUB_DEVICE_BOOT_UUID="$GRUB_DEVICE_BOOT_UUID_GENERATED"
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+ fi
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+ if [ -z "$GRUB_DEVICE_UUID" ]; then
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+ GRUB_DEVICE_UUID="$GRUB_DEVICE_UUID_GENERATED"
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+ fi
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+ if [ -z "$GRUB_DEVICE_PART_UUID" ]; then
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+ GRUB_DEVICE_PART_UUID="$GRUB_DEVICE_PART_UUID_GENERATED"
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+ fi
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+fi
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+
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# XXX: should this be deprecated at some point?
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if [ "x${GRUB_TERMINAL}" != "x" ] ; then
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GRUB_TERMINAL_INPUT="${GRUB_TERMINAL}"
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@@ -227,6 +242,7 @@ export GRUB_DEFAULT \
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GRUB_DISABLE_LINUX_UUID \
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GRUB_DISABLE_LINUX_PARTUUID \
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GRUB_DISABLE_RECOVERY \
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+ GRUB_DISABLE_UUID \
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GRUB_VIDEO_BACKEND \
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GRUB_GFXMODE \
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GRUB_BACKGROUND \
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diff --git a/util/grub-mkconfig_lib.in b/util/grub-mkconfig_lib.in
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index 0f801cab3..1001a1223 100644
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--- a/util/grub-mkconfig_lib.in
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+++ b/util/grub-mkconfig_lib.in
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@@ -156,7 +156,7 @@ prepare_grub_to_access_device ()
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if [ "x$fs_hint" != x ]; then
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echo "set root='$fs_hint'"
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fi
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- if fs_uuid="`"${grub_probe}" --device $@ --target=fs_uuid 2> /dev/null`" ; then
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+ if [ "x$GRUB_DISABLE_UUID" != "xtrue" ] && fs_uuid="`"${grub_probe}" --device $@ --target=fs_uuid 2> /dev/null`" ; then
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hints="`"${grub_probe}" --device $@ --target=hints_string 2> /dev/null`" || hints=
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echo "if [ x\$feature_platform_search_hint = xy ]; then"
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echo " search --no-floppy --fs-uuid --set=root ${hints} ${fs_uuid}"
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@@ -173,7 +173,7 @@ grub_get_device_id ()
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IFS='
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'
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device="$1"
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- if fs_uuid="`"${grub_probe}" --device ${device} --target=fs_uuid 2> /dev/null`" ; then
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+ if [ "x$GRUB_DISABLE_UUID" != "xtrue" ] && fs_uuid="`"${grub_probe}" --device ${device} --target=fs_uuid 2> /dev/null`" ; then
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echo "$fs_uuid";
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else
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echo $device |sed 's, ,_,g'
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