diff options
Diffstat (limited to 'perl-install/bootloader.pm')
| -rw-r--r-- | perl-install/bootloader.pm | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/perl-install/bootloader.pm b/perl-install/bootloader.pm index 9ada11cbf..32fe34898 100644 --- a/perl-install/bootloader.pm +++ b/perl-install/bootloader.pm @@ -1569,6 +1569,8 @@ sub write_grub_device_map { (map_index { "(hd$::i) /dev/$_->{device}\n" } @$sorted_hds)); } +# parses things like "(hd0,4)/boot/vmlinuz" +# returns: ("hd0", 4, "boot/vmlinuz") sub parse_grub_file { my ($grub_file) = @_; my ($grub_dev, $rel_file) = $grub_file =~ m!\((.*?)\)/?(.*)! or return; @@ -1576,6 +1578,8 @@ sub parse_grub_file { ($hd, $part, $rel_file); } +# takes things like "(hd0,4)/boot/vmlinuz" +# returns: ("/dev/sda5", "boot/vmlinuz") sub grub2dev_and_file { my ($grub_file, $grub2dev, $o_block_device) = @_; my ($hd, $part, $rel_file) = parse_grub_file($grub_file) or return; @@ -1584,12 +1588,16 @@ sub grub2dev_and_file { my $device = '/dev/' . ($part eq '' ? $grub2dev->{$hd} : devices::prefix_for_dev($grub2dev->{$hd}) . $part); $device, $rel_file; } +# takes things like "(hd0,4)/boot/vmlinuz" +# returns: "/dev/sda5" sub grub2dev { my ($grub_file, $grub2dev, $o_block_device) = @_; first(grub2dev_and_file($grub_file, $grub2dev, $o_block_device)); } -# replace dummy "(hdX,Y)" in "(hdX,Y)/boot/vmlinuz..." by appropriate path if needed +# replaces +# - "/vmlinuz" with "/boot/vmlinuz" when "root" or "rootnoverify" is set for the entry +# - "(hdX,Y)" in "(hdX,Y)/boot/vmlinuz..." by appropriate path if possible/needed sub grub2file { my ($grub_file, $grub2dev, $fstab, $o_entry) = @_; @@ -1704,7 +1712,7 @@ sub write_grub { my $vga = $entry->{vga} || $bootloader->{vga}; push @conf, join(' ', $entry->{xen} ? 'module' : 'kernel', $file2grub->($entry->{kernel_or_dev}), - $entry->{xen} ? '' : 'BOOT_IMAGE=' . simplify_label($entry->{label}), + $entry->{xen} ? () : 'BOOT_IMAGE=' . simplify_label($entry->{label}), if_($entry->{root}, $entry->{root} =~ /loop7/ ? "root=707" : "root=$entry->{root}"), #- special to workaround bug in kernel (see #ifdef CONFIG_BLK_DEV_LOOP) $entry->{append}, if_($entry->{'read-write'}, 'rw'), @@ -1809,7 +1817,7 @@ sub install_grub { if (!$::testing) { if ($bootloader->{previous_boot} && $bootloader->{previous_boot} eq $bootloader->{boot}) { - # nothing to do + # nothing to do (already installed in {boot}) } else { if ($bootloader->{previous_boot}) { restore_previous_MBR_bootloader(delete $bootloader->{previous_boot}); |