2022-11-15 06:58:41 +00:00
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From 5eb855bddaf8270e7274132ded0e36325d8ffbbe Mon Sep 17 00:00:00 2001
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2022-05-17 10:28:40 +00:00
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From: Lennart Poettering <lennart@poettering.net>
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Date: Wed, 9 Feb 2022 14:44:48 +0100
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Subject: [PATCH] kernel-install: only generate systemd.boot_id= in kernel
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command line if used for naming the boot loader spec files/dirs
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Now that we can distinguish the naming of the boot loader spec
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dirs/files and the machine ID let's tweak the logic for suffixing the
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kernel cmdline with systemd.boot_id=: let's only do that when we
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actually need the boot ID for naming these dirs/files. If we don't,
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let's not bother.
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This should be beneficial for "golden" images that shall not carry any
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machine IDs at all, i.e acquire their identity only once the final
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userspace is actually reached.
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(cherry picked from commit 953b61004c37948dcd897265b56c1613bc73b9f9)
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Related: #2065061
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---
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src/kernel-install/90-loaderentry.install | 18 +++++++++++++-----
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1 file changed, 13 insertions(+), 5 deletions(-)
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diff --git a/src/kernel-install/90-loaderentry.install b/src/kernel-install/90-loaderentry.install
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index 46261a2c11..c1d69aa824 100644
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--- a/src/kernel-install/90-loaderentry.install
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+++ b/src/kernel-install/90-loaderentry.install
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@@ -70,10 +70,15 @@ else
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BOOT_OPTIONS="$(tr -s "$IFS" '\n' </proc/cmdline | grep -ve '^BOOT_IMAGE=' -e '^initrd=' | tr '\n' ' ')"
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fi
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-# Suffix with the machine ID we use, so that the machine ID remains stable,
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-# even during factory reset, in the initrd (where the system's machine ID is
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-# not directly accessible yet), and if the root file system is volatile.
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-BOOT_OPTIONS="${BOOT_OPTIONS% } systemd.machine_id=$MACHINE_ID"
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+BOOT_OPTIONS="${BOOT_OPTIONS% }"
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+
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+# If the boot entries are named after the machine ID, then suffix the kernel
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+# command line with the machine ID we use, so that the machine ID remains
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+# stable, even during factory reset, in the initrd (where the system's machine
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+# ID is not directly accessible yet), and if the root file system is volatile.
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+if [ "$ENTRY_TOKEN" = "$MACHINE_ID" ]; then
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+ BOOT_OPTIONS="$BOOT_OPTIONS systemd.machine_id=$MACHINE_ID"
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+fi
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if [ -r /etc/kernel/tries ]; then
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read -r TRIES </etc/kernel/tries
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@@ -121,7 +126,10 @@ mkdir -p "${LOADER_ENTRY%/*}" || {
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{
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echo "title $PRETTY_NAME"
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echo "version $KERNEL_VERSION"
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- echo "machine-id $MACHINE_ID"
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+ if [ "$ENTRY_TOKEN" = "$MACHINE_ID" ]; then
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+ # See similar logic above for the systemd.machine_id= kernel command line option
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+ echo "machine-id $MACHINE_ID"
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+ fi
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echo "options $BOOT_OPTIONS"
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echo "linux $ENTRY_DIR/linux"
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