52 lines
2.2 KiB
Diff
52 lines
2.2 KiB
Diff
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From 28440c9b5f83b82b4715554fa5c2d3f013b769e6 Mon Sep 17 00:00:00 2001
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From: Michael Chang <mchang@suse.com>
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Date: Tue, 26 Mar 2024 13:55:53 +0800
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Subject: [PATCH] 10_linux: Ensure persistence of root file system mounting
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This commit addresses the issue where the by-uuid or by-partuuid device
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symlinks might be unavailable in an installation system. Despite the
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absence of these symlinks, the resulting system remains fully functional
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for mounting the root file system by using persistent names
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(root=(UUID|PARTUUID)=).
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The patch implemented in this commit aims to prevent fallback to the OS
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name as the root= parameter, as persistent names are preferred for
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stability and predictability.
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To achieve this, the fallback to the OS name won't be triggered if the
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corresponding by-uuid or by-partuuid symlinks are missing, ensuring the
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use of persistent names. Instead, a warning will be logged for the
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missing symlinks, providing visibility into the issue.
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Signed-off-by: Michael Chang <mchang@suse.com>
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---
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util/grub.d/10_linux.in | 6 ++++--
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1 file changed, 4 insertions(+), 2 deletions(-)
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diff --git a/util/grub.d/10_linux.in b/util/grub.d/10_linux.in
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index 5531239eb..4d8bdeac2 100644
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--- a/util/grub.d/10_linux.in
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+++ b/util/grub.d/10_linux.in
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@@ -54,14 +54,16 @@ esac
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if ( [ "x${GRUB_DEVICE_UUID}" = "x" ] && [ "x${GRUB_DEVICE_PARTUUID}" = "x" ] ) \
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|| ( [ "x${GRUB_DISABLE_LINUX_UUID}" = "xtrue" ] \
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&& [ "x${GRUB_DISABLE_LINUX_PARTUUID}" = "xtrue" ] ) \
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- || ( ! test -e "/dev/disk/by-uuid/${GRUB_DEVICE_UUID}" \
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- && ! test -e "/dev/disk/by-partuuid/${GRUB_DEVICE_PARTUUID}" ) \
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|| ( test -e "${GRUB_DEVICE}" && uses_abstraction "${GRUB_DEVICE}" lvm ); then
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LINUX_ROOT_DEVICE=${GRUB_DEVICE}
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elif [ "x${GRUB_DEVICE_UUID}" = "x" ] \
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|| [ "x${GRUB_DISABLE_LINUX_UUID}" = "xtrue" ]; then
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+ test -e "/dev/disk/by-partuuid/${GRUB_DEVICE_PARTUUID}" ||
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+ echo "WARN: Use PARTUUID=${GRUB_DEVICE_PARTUUID} despite missing by-partuuid symlink" >&2
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LINUX_ROOT_DEVICE=PARTUUID=${GRUB_DEVICE_PARTUUID}
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else
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+ test -e "/dev/disk/by-uuid/${GRUB_DEVICE_UUID}" ||
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+ echo "WARN: Use UUID=${GRUB_DEVICE_UUID} despite missing by-uuid symlink" >&2
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LINUX_ROOT_DEVICE=UUID=${GRUB_DEVICE_UUID}
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fi
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--
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2.44.0
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