diff options
Diffstat (limited to 'main/syslinux/update-extlinux')
| -rwxr-xr-x | main/syslinux/update-extlinux | 118 |
1 files changed, 82 insertions, 36 deletions
diff --git a/main/syslinux/update-extlinux b/main/syslinux/update-extlinux index 25585334be8..a2488cc8df5 100755 --- a/main/syslinux/update-extlinux +++ b/main/syslinux/update-extlinux @@ -4,8 +4,13 @@ default=0 timeout=5 verbose=0 +conf=/boot/extlinux.conf +myconf=/etc/update-extlinux.conf + # read in extlinux settings -source /etc/extlinux.conf +if [ -f "$myconf" ]; then + . $myconf +fi everbose() { if [ "$verbose" = "0" ]; then @@ -15,14 +20,44 @@ everbose() { echo $* } +ewarn() { + echo "WARNING:" $@ >&2 +} + +eerror() { + echo "ERROR:" $@ >&2 + return 1 +} + everbose "Updating extlinux configuration." if [ "x$root" = "x" ]; then - everbose "WARNING: Root device not specified, determining automatically." - everbose -n "Root device is: " - export `blkid -o export /dev/root` - root=UUID=$UUID - everbose $root + 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 "$dev" ]; then + eerror "Failed to detect root device" + exit 1 + else + root=$dev + fi + else + root=UUID=$UUID + fi + everbose "Root device is: $root" fi everbose "Installing mboot.c32 to /boot." @@ -32,29 +67,26 @@ everbose "Installing menu.c32 to /boot." cp /usr/share/syslinux/menu.c32 /boot rtimeout=$((${timeout}\*10)) +syslinux_menu=menu.c32 +menu_hidden= + # vesa menu has been requested? -if [ "$fancy_menu" = "1" ]; then - everbose "Installing vesamenu.c32 to /boot." - cp /usr/share/syslinux/vesamenu.c32 /boot - - echo "DEFAULT vesamenu.c32" > /boot/extlinux.conf.new - echo "PROMPT 0" >> /boot/extlinux.conf.new - echo "MENU TITLE Alpine/$(uname -s) Boot Menu" >> /boot/extlinux.conf.new - if [ "$hidden" = "1" ]; then - echo "MENU HIDDEN" >> /boot/extlinux.conf.new - fi - echo "MENU AUTOBOOT Alpine will be booted automatically in # seconds." >> /boot/extlinux.conf.new - echo "TIMEOUT $rtimeout" >> /boot/extlinux.conf.new -else - echo "DEFAULT menu.c32" > /boot/extlinux.conf.new - echo "PROMPT 0" >> /boot/extlinux.conf.new - echo "MENU TITLE Alpine/$(uname -s) Boot Menu" >> /boot/extlinux.conf.new - if [ "$hidden" = "1" ]; then - echo "MENU HIDDEN" >> /boot/extlinux.conf.new - fi - echo "MENU AUTOBOOT Alpine will be booted automatically in # seconds." >> /boot/extlinux.conf.new - echo "TIMEOUT $rtimeout" >> /boot/extlinux.conf.new +if [ "$vesa_menu" = "1" ]; then + syslinux_menu=vesamenu.c32 +fi + +everbose "Installing $syslinux_menu to /boot." +cp /usr/share/syslinux/vesamenu.c32 /boot + +echo "# Generated by update-extlinux" > $conf.new +echo "DEFAULT $syslinux_menu" >> $conf.new +echo "PROMPT 0" >> $conf.new +echo "MENU TITLE Alpine/$(uname -s) Boot Menu" >> $conf.new +if [ "$hidden" = "1" ]; then + echo "MENU HIDDEN" >> $conf.new fi +echo "MENU AUTOBOOT Alpine will be booted automatically in # seconds." >> $conf.new +echo "TIMEOUT $rtimeout" >> $conf.new lst=0 for kernel in $(find /boot -name vmlinuz-* -type f); do @@ -66,24 +98,38 @@ for kernel in $(find /boot -name vmlinuz-* -type f); do initramfs="initrd=initramfs-$tag" fi - echo "LABEL $lst" >> /boot/extlinux.conf.new + echo "LABEL $lst" >> $conf.new if [ "$lst" = "$default" ]; then - echo " MENU DEFAULT" >> /boot/extlinux.conf.new + echo " MENU DEFAULT" >> $conf.new fi - echo " MENU LABEL Linux $tag" >> /boot/extlinux.conf.new - echo " KERNEL $(basename $kernel)" >> /boot/extlinux.conf.new - echo " APPEND $initramfs root=$root modules=$modules,$TYPE $default_kernel_opts" >> /boot/extlinux.conf.new + echo " MENU LABEL Linux $tag" >> $conf.new + echo " KERNEL $(basename $kernel)" >> $conf.new + echo " APPEND $initramfs root=$root modules=${modules}${TYPE:+,$TYPE} $default_kernel_opts" >> $conf.new + echo "" >> $conf.new lst=$(($lst + 1)) done if [ -f "/boot/memtest" ]; then everbose "Found memtest86+: /boot/memtest" - echo "LABEL $lst" >> /boot/extlinux.conf.new - echo " MENU LABEL Memtest86+" >> /boot/extlinux.conf.new - echo " KERNEL memtest" >> /boot/extlinux.conf.new + echo "LABEL $lst" >> $conf.new + echo " MENU LABEL Memtest86+" >> $conf.new + echo " KERNEL memtest" >> $conf.new + echo "" >> $conf.new lst=$(($lst + 1)) fi everbose "$lst entries found." -mv /boot/extlinux.conf.new /boot/extlinux.conf +for entry in /etc/update-extlinux.d/*; do + [ -f "$entry" ] && cat $entry >> $conf.new +done + +if [ "$overwrite" = "1" ]; then + # keep a backup just in case + if [ -f "$conf" ]; then + mv $conf $conf.old + fi + + mv $conf.new $conf +fi + |