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[arch_post_update_update_boot] use variables present in profile to set boot path

This commit is contained in:
masq 2024-11-04 11:30:01 +01:00
parent c9ecf555c8
commit 1c4715ade0
Signed by: masq
GPG Key ID: 35A0D64DDE13B10F
1 changed files with 47 additions and 13 deletions
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60
arch_post_update_update_boot.sh
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@ -1,30 +1,64 @@
#!/bin/sh
set -xe
AURA_BIN=/usr/bin/aura
CURRENT_VERSION=`${AURA_BIN} -Qi linux | sed -n '/^Version *:/p' | grep -o '[^ ]*$'`
BOOT_BLK=/dev/vg0/boot
# arch_post_update_update_boot.sh
#
# In your /etc/profile, export the following variables
# LVM_VG_BOOT=vg0
# LVM_LG_BOOT_NAME=boot
# BOOT_DIR_SUFFIX=/archlinux
#
# Optional variables:
# PACMAN_BIN=/usr/bin/pacman # Alternative pacman binary (eg: aura)
# BOOT_SYMLINK=current (in good boot dir)
set -e
source /etc/profile
ask_overwrite() {
echo "Existing destination folder ($ARCH_BOOT_DST_CURRENT_VERSION), do you want to overwrite? (y/n)";
read OVERWRITE;
test "$OVERWRITE" = "y" && return
echo "Do not overwrite. Exitting gently..."
exit 0;
}
PACMAN_BIN=${PACMAN_BIN:-/usr/bin/pacman}
BOOT_SYMLINK=${BOOT_SYMLINK:-current}
CURRENT_VERSION=`${PACMAN_BIN} -Qi linux \
| sed -n '/^Version *:/p' \
| grep -o '[^ ]*$'`
BOOT_BLK=/dev/$LVM_VG_BOOT/$LVM_LG_BOOT_NAME
BOOT_ORIG=/boot
BOOT_DST=/mnt/boot
ARCH_BOOT_DST=$BOOT_DST/archlinux
TMP_BOOT_DST=`mktemp -d`
ARCH_BOOT_DST=$TMP_BOOT_DST/$BOOT_DIR_SUFFIX
ARCH_BOOT_DST_CURRENT_VERSION=$ARCH_BOOT_DST/$CURRENT_VERSION
ARCH_INITRAMFS=initramfs-linux.img
ARCH_INITRAMFS_FALLBACK=initramfs-linux-fallback.img
ARCH_VMLINUZ=vmlinuz-linux
mount $BOOT_BLK $BOOT_DST;
test -d $ARCH_BOOT_DST_CURRENT_VERSION && echo "Linux version already up to date ($CURRENT_VERSION)" && exit 0;
mount $BOOT_BLK $TMP_BOOT_DST;
test -d $ARCH_BOOT_DST_CURRENT_VERSION \
&& test `realpath $ARCH_BOOT_DST/$BOOT_SYMLINK` = $ARCH_BOOT_DST_CURRENT_VERSION \
&& echo "Linux version already up to date ($CURRENT_VERSION)" && exit 0;
mkdir $ARCH_BOOT_DST_CURRENT_VERSION;
mkdir $ARCH_BOOT_DST_CURRENT_VERSION || ask_overwrite;
(
cd $BOOT_ORIG;
cp -t $ARCH_BOOT_DST_CURRENT_VERSION $ARCH_INITRAMFS $ARCH_INITRAMFS_FALLBACK $ARCH_VMLINUZ;
cd $BOOT_ORIG;
# Copy the new kernel files to the real destination in boot fs
cp -t $ARCH_BOOT_DST_CURRENT_VERSION $ARCH_INITRAMFS $ARCH_INITRAMFS_FALLBACK $ARCH_VMLINUZ;
)
(
cd $ARCH_BOOT_DST;
rm current && ln -s $CURRENT_VERSION current;
cd $ARCH_BOOT_DST;
# Re-link the good version
test -f $BOOT_SYMLINK && rm $BOOT_SYMLINK;
ln -s $CURRENT_VERSION current;
)
echo "Linux version updated to $CURRENT_VERSION"
umount $TMP_BOOT_DST;
exit 0;