9bc71d03db
- Merge changes from SLE12 - Do not pass root= when root is on nfs (bnc#894374) * modified grub2-pass-corret-root-for-nfsroot.patch * modified grub2-secureboot-provide-linuxefi-config.patch * modified grub2-secureboot-use-linuxefi-on-uefi.patch - Fix xen pvops kernel not appear on menu (bnc#895286) * modified grub2-fix-menu-in-xen-host-server.patch - Workaround grub2-once (bnc#892358) * added grub2-btrfs-workaround-grub2-once.patch * added grub2-once.service * modified grub2-once - Fix busy-loop and hang while network booting (bnc#870613) * added grub2-netboot-hang.patch - Add warning in grubenv file about editing it directly (bnc#887008) * added grub2-editenv-add-warning-message.patch - Fix broken graphics with efifb on QEMU/KVM and nomodeset (bnc#884558) * added grub2-efi-disable-video-cirrus-and-bochus.patch - Disable video support on Power (bnc#877142) * added grub2-ppc64le-disable-video.patch - Track occupied memory so it can be released on exit (bnc#885026) * added grub2-ppc64le-memory-map.patch - Fix grub.xen config searching path on boot partition (bnc#884828) - Add linux16 and initrd16 to grub.xen (bnc#884830) * added grub2-xen-linux16.patch - VLAN tag support (fate#315753) * added 0001-Add-bootargs-parser-for-open-firmware.patch * added 0002-Add-Virtual-LAN-support.patch - Use chainloader to boot xen.efi under UEFI (bnc#871857) * added grub2-efi-xen-chainload.patch - Use device part of chainloader target, if present (bnc#871857) OBS-URL: https://build.opensuse.org/request/show/295632 OBS-URL: https://build.opensuse.org/package/show/Base:System/grub2?expand=0&rev=148
145 lines
2.8 KiB
Perl
145 lines
2.8 KiB
Perl
#!/usr/bin/perl
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#
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# (C) 2014 mchang@suse.com
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#
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# 2014-02-20 jw@suse.de
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use strict;
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my $grub2_dir;
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my $grub2_reboot;
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my $show_mapped;
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my $id_name;
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my @menuentry;
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sub parse_menuentry {
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my ($parent, $menu) = @_;
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my @m = $menu =~ /(submenu|menuentry) \s+ '([^']*)' .*? ( \{ (?: [^{}]* | (?3))* \} )/sxg;
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for (my $i = 0; $i <= $#m; $i += 3) {
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my $type = $m[$i];
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my $title = $m[$i+1];
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my $data = $m[$i+2];
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my $name = ($parent) ? "$parent>$title" : "$title";
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if ($type eq "menuentry") {
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push @menuentry, $name;
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} elsif ($type eq "submenu") {
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&parse_menuentry ($name, $data);
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}
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}
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}
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# Enable restore grubenv service (bnc#892358)
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# Restore grubenv settings for booting default entry to workaround the grub2-once cannot
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# work and function properly on lvm, md and s390.
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sub enable_restore_grubenv_service {
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my $systemctl="/usr/bin/systemctl";
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if (-x $systemctl) {
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system "$systemctl --no-reload enable grub2-once >/dev/null 2>&1";
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}
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}
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$id_name = "";
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if (@ARGV == 2 && ($ARGV[0] eq "--show-mapped")) {
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$show_mapped = 1;
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$id_name = $ARGV[1];
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} elsif (@ARGV == 1) {
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$show_mapped = 0;
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$id_name = $ARGV[0];
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}
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die "wrong command line options, try --help\n" if ($id_name eq "");
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open(SYSCONF, "</etc/sysconfig/bootloader") || die "cannot read bootloader sysconfig: $!\n";
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$grub2_dir = "";
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while (<SYSCONF>) {
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if (/LOADER_TYPE="(.*)"/) {
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my $bl = $1;
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if ($bl eq "grub2" || $bl eq "grub2-efi") {
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$grub2_dir = "/boot/grub2";
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$grub2_reboot = "/usr/sbin/grub2-reboot";
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}
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last;
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}
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}
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close (SYSCONF);
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if ($id_name eq "--help" or $id_name eq "-h")
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{
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print "Usage: grub2-once [--show-mapped ID | --list | ID | NAME_SUBSTRING ]\n";
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system "$grub2_reboot \"--help\"";
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exit 0;
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}
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die "no grub2_dir" if ($grub2_dir eq "");
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open(MENU, "<$grub2_dir/grub.cfg") || die "cannot read grub.cfg in $grub2_dir: $!\n";
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undef $/;
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while (<MENU>) {
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&parse_menuentry ("", $_);
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}
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close (MENU);
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my $ret = "";
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my $name = "";
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my $id = -1;
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if ($id_name eq '--list')
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{
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my $c = 0;
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foreach my $e (@menuentry)
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{
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printf "%6d %s\n", $c, $e;
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$c++;
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}
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exit 0;
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}
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if ($id_name =~ m!^[0-9]+$!) {
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if ($id_name < @menuentry) {
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$id = $id_name;
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$name = $menuentry[$id];
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$ret = $name;
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}
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} else {
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my $i = -1;
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my $c = 0;
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$name = $id_name;
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foreach my $e (@menuentry) {
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if ($e =~ qr!\Q$name\E!) {
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$i = $c;
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last;
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}
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} continue {
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++$c;
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}
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if ($i >= 0) {
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$id = $i;
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$name = $menuentry[$id];
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$ret = "$id";
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}
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}
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if ($show_mapped > 0) {
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print $ret;
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} else {
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system "$grub2_reboot \"$name\"";
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enable_restore_grubenv_service;
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}
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