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-rw-r--r--repo/syslinux/update-extlinux284
1 files changed, 284 insertions, 0 deletions
diff --git a/repo/syslinux/update-extlinux b/repo/syslinux/update-extlinux
new file mode 100644
index 0000000..4799cd3
--- /dev/null
+++ b/repo/syslinux/update-extlinux
@@ -0,0 +1,284 @@
+#!/bin/sh
+
+version=
+default=0
+timeout=5
+verbose=0
+
+conf=/boot/extlinux.conf
+myconf=/etc/update-extlinux.conf
+
+# read in extlinux settings
+if [ -f "$myconf" ]; then
+ . $myconf
+fi
+
+everbose() {
+ if [ "$verbose" = "0" ]; then
+ return
+ fi
+
+ echo $*
+}
+
+ewarn() {
+ echo "WARNING:" $@ >&2
+}
+
+eerror() {
+ echo "ERROR:" $@ >&2
+ return 1
+}
+
+usage() {
+ echo "usage: $0 [-v|--verbose] [--warn-only]"
+}
+
+while [ $# -gt 0 ]; do
+ opt="$1"
+ shift
+ case "$opt" in
+ -v|--verbose)
+ verbose=1
+ ;;
+ --warn-only)
+ warn_only=1
+ ;;
+ --)
+ break
+ ;;
+ -*)
+ usage
+ exit 1
+ ;;
+ esac
+done
+
+everbose "Updating extlinux configuration."
+
+if [ "x$root" = "x" ]; then
+ ewarn "Root device is not specified in $myconf."
+ blkid_export=$(blkid -o export /dev/root)
+ if [ -n "$blkid_export" ]; then
+ export $blkid_export
+ fi
+ if [ -z "$UUID" ]; then
+ # try parse /proc/mount for mounted /
+ dev=$(awk '$2 == "/" {dev=$1} END {print dev}' /proc/mounts)
+ if [ -n "$dev" ]; then
+ blkid_export=$(blkid -o export $dev)
+ if [ -n "$blkid_export" ]; then
+ export "$blkid_export"
+ fi
+ fi
+ fi
+ if [ -z "$UUID" ]; then
+ if [ -z "$dev" ]; then
+ if [ -n "$warn_only" ]; then
+ ewarn "Failed to detect root device. extlinux.conf is not updated"
+ exit 0
+ else
+ eerror "Failed to detect root device"
+ exit 1
+ fi
+ else
+ root=$dev
+ fi
+ else
+ root=UUID=$UUID
+ fi
+ everbose "Root device is: $root"
+fi
+
+rtimeout=$(( ${timeout} * 10 ))
+syslinux_menu=menu.c32
+menu_hidden=
+
+# vesa menu has been requested?
+if [ "$vesa_menu" = "1" ]; then
+ syslinux_menu=vesamenu.c32
+fi
+
+umask 0022
+rm -f $conf.new
+echo "# Generated by update-extlinux $version" > $conf.new
+if [ -n "$serial_port" ]; then
+ echo "SERIAL $serial_port ${serial_baud:-115200}" >> $conf.new
+fi
+echo "DEFAULT $syslinux_menu" >> $conf.new
+echo "PROMPT 0" >> $conf.new
+echo "MENU TITLE XiLinux/$(uname -s) Boot Menu" >> $conf.new
+if [ "$hidden" = "1" ]; then
+ echo "MENU HIDDEN" >> $conf.new
+fi
+echo "MENU AUTOBOOT XiLinux will be booted automatically in # seconds." >> $conf.new
+echo "TIMEOUT $rtimeout" >> $conf.new
+
+lst=0
+if [ -f "/boot/xen.gz" ]; then
+ for kernel in $(find /boot -name "vmlinuz-*" -type f); do
+ tag=$(basename $kernel | cut -b9-)
+ everbose "Found Xen hypervisor: /boot/xen.gz, kernel: $kernel"
+
+ if [ -f "/boot/initramfs-$tag" ]; then
+ everbose "Found initramfs: /boot/initramfs-$tag"
+ initramfs="initramfs-$tag"
+ else
+ initramfs=
+ fi
+ initramfs_stage="${initramfs:+---} $initramfs"
+
+ if [ -f "/boot/amd-ucode.img" ]; then
+ everbose "Found microcode for AMD CPUs: /boot/amd-ucode.img"
+ ucode_image_amd="amd-ucode.img"
+ case "$xen_opts" in
+ *ucode=scan* ) ;;
+ * ) xen_opts="$xen_opts ucode=scan" ;;
+ esac
+ fi
+ if [ -f "/boot/intel-ucode.img" ]; then
+ everbose "Found microcode for Intel CPUs: /boot/intel-ucode.img"
+ ucode_image_intel="intel-ucode.img"
+ case "$xen_opts" in
+ *ucode=scan* ) ;;
+ * ) xen_opts="$xen_opts ucode=scan" ;;
+ esac
+ fi
+ ucode_image_stage="${ucode_image_amd:+---} $ucode_image_amd ${ucode_image_intel:+---} $ucode_image_intel"
+
+ label=xen-$(grep -w -l $tag /usr/share/kernel/*/kernel.release \
+ | cut -d/ -f5)
+ if [ "$label" = "xen-" ]; then
+ label=xen-$lst
+ fi
+
+ dom0_kernel_stage="--- $(basename $kernel) root=$root modules=${modules}${TYPE:+,$TYPE} $default_kernel_opts"
+
+ echo "LABEL $label" >> $conf.new
+ if [ "$label" = "$default" ]; then
+ echo " MENU DEFAULT" >> $conf.new
+ fi
+ echo " MENU LABEL Xen + Linux $tag" >> $conf.new
+ echo " COM32 mboot.c32" >> $conf.new
+ echo " APPEND xen.gz $xen_opts $dom0_kernel_stage $initramfs_stage $ucode_image_stage" >> $conf.new
+ echo "" >> $conf.new
+ lst=$(($lst + 1))
+ done
+fi
+
+for kernel in $(find /boot -name "vmlinuz*" -type f); do
+ case $kernel in
+ *vmlinuz) tag=vanilla;;
+ *vmlinuz-*) tag=$(basename $kernel | cut -b9-);;
+ *) continue;;
+ esac
+ everbose "Found kernel: $kernel"
+ label=$(grep -w -l $tag /usr/share/kernel/*/kernel.release | cut -d/ -f5)
+ if [ -z "$label" ]; then
+ if [ "$tag" = vanilla ]; then
+ label="vanilla"
+ else
+ label=$lst
+ fi
+ fi
+ echo "LABEL $label" >> $conf.new
+ if [ "$label" = "$default" ]; then
+ echo " MENU DEFAULT" >> $conf.new
+ fi
+ echo " MENU LABEL Linux $tag" >> $conf.new
+ echo " LINUX $(basename $kernel)" >> $conf.new
+ initrd=
+ if [ -f "/boot/initramfs-$tag" ]; then
+ everbose "Found initramfs: /boot/initramfs-$tag"
+ initrd="initramfs-$tag"
+ fi
+ if [ -f "/boot/amd-ucode.img" ]; then
+ everbose "Found microcode for AMD CPUs: /boot/amd-ucode.img"
+ initrd="amd-ucode.img${initrd:+,}${initrd}"
+ fi
+ if [ -f "/boot/intel-ucode.img" ]; then
+ everbose "Found microcode for Intel CPUs: /boot/intel-ucode.img"
+ initrd="intel-ucode.img${initrd:+,}${initrd}"
+ fi
+ echo " INITRD ${initrd}" >> $conf.new
+ echo " APPEND root=$root modules=${modules}${TYPE:+,$TYPE} $default_kernel_opts" >> $conf.new
+ echo "" >> $conf.new
+ lst=$(($lst + 1))
+done
+
+if [ -n "$password" ]; then
+ echo "NOESCAPE 1" >> $conf.new
+ echo "MENU MASTER PASSWD $password" >> $conf.new
+ echo "" >> $conf.new
+ chmod o-r $conf.new
+fi
+
+everbose "$lst entries found."
+
+for entry in /etc/update-extlinux.d/*; do
+ [ -f "$entry" ] && { cat $entry; echo ""; } >> $conf.new
+done
+
+echo "MENU SEPARATOR" >> $conf.new
+echo "" >> $conf.new
+
+if [ -f "/boot/hdt.c32" ]; then
+ everbose "Found Hardware Detection Tool: /boot/hdt.c32"
+ echo "LABEL hdt" >> $conf.new
+ echo " MENU LABEL Hardware info" >> $conf.new
+ if [ -n "$password" ]; then
+ echo " MENU PASSWD" >> $conf.new
+ fi
+ echo " COM32 hdt.c32" >> $conf.new
+ if [ -f "/boot/memtest" ]; then
+ everbose "Found memtest86+: /boot/memtest"
+ echo " APPEND memtest=memtest" >> $conf.new
+ fi
+ echo "" >> $conf.new
+elif [ -f "/boot/memtest" ]; then
+ everbose "Found memtest86+: /boot/memtest"
+ echo "LABEL memtest" >> $conf.new
+ echo " MENU LABEL Memtest86+" >> $conf.new
+ echo " KERNEL memtest" >> $conf.new
+ echo "" >> $conf.new
+fi
+
+for i in reboot poweroff; do
+ [ -f "/boot/$i.c32" ] || continue
+ everbose "Found $i"
+ # make first char capital
+ cap=$( echo $i | awk '{sub(".", substr(toupper($0),1,1), $0); print}' )
+ echo "LABEL $i" >> $conf.new
+ echo " MENU LABEL $cap" >> $conf.new
+ echo " COM32 $i.c32" >> $conf.new
+ echo "" >> $conf.new
+done
+
+if cmp -s $conf.new $conf; then
+ everbose "Configuration unchanged."
+ rm $conf.new
+fi
+
+if [ "$overwrite" != "1" ]; then
+ exit 0
+elif [ -f "$conf.new" ]; then
+ # keep a backup just in case
+ if [ -f "$conf" ]; then
+ mv $conf $conf.old
+ fi
+
+ mv $conf.new $conf
+fi
+
+everbose "Installing libutil.c32 libcom32.c32 mboot.c32 menu.c32 vesamenu.c32 to /boot."
+cp /usr/share/syslinux/libutil.c32 \
+ /usr/share/syslinux/libcom32.c32 \
+ /usr/share/syslinux/mboot.c32 \
+ /usr/share/syslinux/menu.c32 \
+ /usr/share/syslinux/vesamenu.c32 \
+ /boot
+
+case "$(findmnt -n -o FSTYPE -T /boot)" in
+ext*) extlinux --update /boot || [ -n "$warn_only" ];;
+esac
+
generated by cgit v1.2.3 (git 2.39.1) at 2025-10-31 02:22:03 +0000