mirror of
https://gitlab.alpinelinux.org/alpine/aports.git
synced 2025-04-20 04:56:55 +02:00
d07bbedd08
if "$myconf" defines/redefines "$conf"
the generated output would go to the wrong file
I.e.
>echo "conf=/boot/mybootdir/extlinux.conf" >> /etc/update-extliunx.conf
/sbin/update-extlinux will honor this,
while update-pvgrub would write to the wrong config file.
So postpone presetting "$conf" until "$myconf" has been source'd
118 lines
2.2 KiB
Bash
Executable file
118 lines
2.2 KiB
Bash
Executable file
#!/bin/sh
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version=
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default=0
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timeout=5
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verbose=0
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myconf=/etc/update-extlinux.conf
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# read in extlinux settings
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if [ -f "$myconf" ]; then
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. $myconf
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fi
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conf=/boot/grub/menu.lst
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everbose() {
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if [ "$verbose" = "0" ]; then
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return
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fi
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echo $*
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}
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ewarn() {
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echo "WARNING:" $@ >&2
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}
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eerror() {
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echo "ERROR:" $@ >&2
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return 1
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}
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everbose "Updating extlinux configuration."
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if [ "x$root" = "x" ]; then
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ewarn "Root device is not specified in $myconf."
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blkid_export=$(blkid -o export /dev/root)
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if [ -n "$blkid_export" ]; then
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export $blkid_export
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fi
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if [ -z "$UUID" ]; then
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# try parse /proc/mount for mounted /
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dev=$(awk '$2 == "/" {dev=$1} END {print dev}' /proc/mounts)
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if [ -n "$dev" ]; then
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blkid_export=$(blkid -o export $dev)
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if [ -n "$blkid_export" ]; then
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export "$blkid_export"
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fi
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fi
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fi
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if [ -z "$UUID" ]; then
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if [ -z "$dev" ]; then
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eerror "Failed to detect root device"
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exit 1
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else
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root=$dev
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fi
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else
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root=UUID=$UUID
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fi
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everbose "Root device is: $root"
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fi
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menu_hidden=
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umask 0022
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rm -f $conf.new
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echo "# Generated by update-pvgrub $version" > $conf.new
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echo "default 0" >> $conf.new
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if [ "$hidden" = "1" ]; then
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echo "hiddenmenu" >> $conf.new
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fi
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echo "timeout $timeout" >> $conf.new
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lst=0
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for kernel in $(find /boot -name "vmlinuz-*" -type f); do
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tag=$(basename $kernel | cut -b9-)
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everbose "Found kernel: $kernel"
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label=$(grep -w -l $tag /usr/share/kernel/*/kernel.release | cut -d/ -f5)
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if [ -z "$label" ]; then
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label=$lst
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fi
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echo "title Linux $tag" >> $conf.new
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echo "root (hd0)" >> $conf.new
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echo "kernel /boot/$(basename $kernel) root=$root modules=${modules}${TYPE:+,$TYPE} $default_kernel_opts" >> $conf.new
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if [ -f "/boot/initramfs-$tag" ]; then
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everbose "Found initramfs: /boot/initramfs-$tag"
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echo "initrd /boot/initramfs-$tag" >> $conf.new
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fi
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echo "" >> $conf.new
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lst=$(($lst + 1))
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done
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if [ -n "$password" ]; then
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echo "password --md5 $password" >> $conf.new
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echo "" >> $conf.new
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chmod o-r $conf.new
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fi
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everbose "$lst entries found."
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if cmp -s $conf.new $conf; then
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everbose "Configuration unchanged."
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rm $conf.new
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fi
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if [ "$overwrite" != "1" ]; then
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exit 0
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elif [ -f "$conf.new" ]; then
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# keep a backup just in case
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if [ -f "$conf" ]; then
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mv $conf $conf.old
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fi
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mv $conf.new $conf
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fi
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