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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Javier Martinez Canillas <javierm@redhat.com>
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Date: Mon, 4 Jun 2018 16:10:22 +0200
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Subject: [PATCH] Add relative path to the kernel and initrds BLS fields if
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needed
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The static BLS config file shipped with the kernel package assumes that
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the /boot directory is a mount point, and that the kernel and initramfs
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images relative path is to the root of a boot partition.
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But there are cases in which this isn't true, for example if a user has
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its /boot in a btrfs subvolume or if /boot isn't a mount point at all.
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So instead of always using the BLS fragment file as distributed by the
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package, check the relative path that GRUB 2 has to use for the images.
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Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
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---
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util/grub-switch-to-blscfg.in | 20 +++++++++++++++++---
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1 file changed, 17 insertions(+), 3 deletions(-)
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diff --git a/util/grub-switch-to-blscfg.in b/util/grub-switch-to-blscfg.in
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index 89487ad61..2482483a4 100644
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--- a/util/grub-switch-to-blscfg.in
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+++ b/util/grub-switch-to-blscfg.in
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@@ -188,6 +188,7 @@ fi
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mkbls() {
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local kernelver=$1 && shift
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local datetime=$1 && shift
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+ local bootprefix=$1 && shift
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local debugname=""
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local debugid=""
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@@ -206,8 +207,8 @@ mkbls() {
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cat <
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title ${NAME} (${kernelver}) ${VERSION}${debugname}
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version ${kernelver}${debugid}
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-linux /vmlinuz-${kernelver}
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-initrd /initramfs-${kernelver}.img
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+linux ${bootprefix}/vmlinuz-${kernelver}
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+initrd ${bootprefix}/initramfs-${kernelver}.img
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options \$kernelopts
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id ${ID}-${datetime}-${kernelver}
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grub_users \$grub_users
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@@ -234,6 +235,16 @@ for kernelver in $(cd /lib/modules/ ; ls -1) "" ; do
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>"${bls_target}"
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fi
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+ linux="$(grep '^linux[ \t]' "${bls_target}" | sed -e 's,^linux[ \t]*,,')"
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+ initrd="$(grep '^initrd[ \t]' "${bls_target}" | sed -e 's,^initrd[ \t]*,,')"
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+ linux_relpath="$("${grub_mkrelpath}" /boot/$linux)"
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+ initrd_relpath="$("${grub_mkrelpath}" /boot/$initrd)"
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+
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+ if [[ $linux != $linux_relpath ]]; then
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+ sed -i -e "s,^linux.*,linux ${linux_relpath},g" "${bls_target}"
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+ sed -i -e "s,^initrd.*,initrd ${initrd_relpath},g" "${bls_target}"
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+ fi
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+
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if [ "x$GRUB_LINUX_MAKE_DEBUG" = "xtrue" ]; then
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arch="$(uname -m)"
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bls_debug="$(echo ${bls_target} | sed -e "s/\.${arch}/-debug.${arch}/")"
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@@ -247,7 +258,10 @@ for kernelver in $(cd /lib/modules/ ; ls -1) "" ; do
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done
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if [[ -f "/boot/vmlinuz-0-rescue-${MACHINE_ID}" ]]; then
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- mkbls "0-rescue-${MACHINE_ID}" "0" >"${blsdir}/${MACHINE_ID}-0-rescue.conf"
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+ if [[ $linux != $linux_relpath ]]; then
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+ bootprefix="$(dirname ${linux_relpath})"
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+ fi
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+ mkbls "0-rescue-${MACHINE_ID}" "0" "${bootprefix}" >"${blsdir}/${MACHINE_ID}-0-rescue.conf"
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fi
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GENERATE=0
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