diff options
Diffstat (limited to 'config/grub/config/grub.cfg')
-rw-r--r-- | config/grub/config/grub.cfg | 212 |
1 files changed, 212 insertions, 0 deletions
diff --git a/config/grub/config/grub.cfg b/config/grub/config/grub.cfg new file mode 100644 index 00000000..586eb145 --- /dev/null +++ b/config/grub/config/grub.cfg @@ -0,0 +1,212 @@ +set prefix=(memdisk)/boot/grub + +insmod at_keyboard +insmod usb_keyboard +insmod nativedisk +insmod ehci +insmod ohci +insmod uhci +insmod usb +insmod usbms +insmod regexp + +terminal_input --append at_keyboard +terminal_input --append usb_keyboard +terminal_output --append cbmemc + +gfxpayload=keep +terminal_output --append gfxterm + +if [ -f (cbfsdisk)/background.png ]; then + insmod png + background_image (cbfsdisk)/background.png +elif [ -f (cbfsdisk)/background.jpg ]; then + insmod jpeg + background_image (cbfsdisk)/background.jpg +fi + +set default="0" +set timeout=30 +set pager=1 +set grub_scan_disk="both" +if [ -f (cbfsdisk)/scan.cfg ]; then + source (cbfsdisk)/scan.cfg +fi + +if [ -f (cbfsdisk)/keymap.gkb ]; then + keymap (cbfsdisk)/keymap.gkb +elif [ -f (cbfsdisk)/keymap.cfg ]; then + source (cbfsdisk)/keymap.cfg +else + keymap usqwerty +fi + +function try_user_config { + set root="${1}" + for dir in boot grub grub2 boot/grub boot/grub2; do + for name in '' osboot_ autoboot_ libreboot_ coreboot_; do + if [ -f /"${dir}"/"${name}"grub.cfg ]; then + unset superusers + configfile /"${dir}"/"${name}"grub.cfg + fi + done + done +} +function search_grub { + echo -n "Attempting to load grub.cfg from '${1}' devices" + for i in 0 1 2 3 4 5 6 7 8 9 10 11; do + for part in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20; do + try_user_config "(${1}${i},${part})" + done + # raw devices e.g. (ahci0) instead of (ahci0,1) + try_user_config "(${1}${i})" + done + echo # Insert newline +} + +function try_isolinux_config { + set root="${1}" + for dir in '' /boot; do + if [ -f "${dir}"/isolinux/isolinux.cfg ]; then + syslinux_configfile -i "${dir}"/isolinux/isolinux.cfg + elif [ -f "${dir}"/syslinux/syslinux.cfg ]; then + syslinux_configfile -s "${dir}"/syslinux/syslinux.cfg + fi + done +} +function search_isolinux { + echo "\nAttempting to parse isolinux/syslinux config from '${1}' devices" + for i in 0 1 2 3 4 5 6 7 8 9 10 11; do + for part in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20; do + try_isolinux_config "(${1}${i},${part})" + done + # raw devices e.g. (usb0) instead of (usb0,1) + try_isolinux_config "(${1}${i})" + done + echo # Insert newline +} +menuentry 'Load Operating System (incl. fully encrypted disks) [o]' --hotkey='o' { + + if [ "${grub_scan_disk}" != "ata" ]; then + search_grub ahci + fi + if [ "${grub_scan_disk}" != "ahci" ]; then + search_grub ata + fi + + # grub device enumeration is very slow, so checks are hardcoded + + # TODO: add more strings, based on what distros set up when + # the user select auto-partitioning on those installers + lvmvol="lvm/matrix-bootvol lvm/matrix-rootvol" + + raidvol="md/0 md/1 md/2 md/3 md/4 md/5 md/6 md/7 md/8 md/9" + + # in practise, doing multiple redundant checks is perfectly fast and + # TODO: optimize grub itself, and use */? here for everything + + for vol in ${lvmvol} ${raidvol} ; do + try_user_config "${vol}" + done + + unset ahcidev + unset atadev + for i in 11 10 9 8 7 6 5 4 3 2 1 0; do + for part in 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1; do + if [ "${grub_scan_disk}" != "ata" ]; then + ahcidev="(ahci${i},${part}) ${ahcidev}" + fi + if [ "${grub_scan_disk}" != "ahci" ]; then + atadev="(ata${i},${part}) ${atadev}" + fi + done + done + + set pager=0 + echo -n "Attempting to unlock encrypted volumes" + for dev in ${ahcidev} ${atadev} ${lvmvol} ${raidvol}; do + if cryptomount "${dev}" ; then break ; fi + done + set pager=1 + echo + + # after cryptomount, lvm volumes might be available + for vol in ${lvmvol}; do + try_user_config "${vol}" + done + + search_grub crypto + + if [ "${grub_scan_disk}" != "ata" ]; then + # Last resort, if all else fails + set root=ahci0,1 + for p in / /boot/; do + if [ -f "${p}vmlinuz" ]; then + linux ${p}vmlinuz root=/dev/sda1 rw + if [ -f "${p}initrd.img" ]; then + initrd ${p}initrd.img + fi + fi + done + fi + + if [ "${grub_scan_disk}" != "ahci" ]; then + # Last resort (for setups that use IDE instead of SATA) + set root=ata0,1 + for p in / /boot/; do + if [ -f "${p}vmlinuz" ]; then + linux ${p}vmlinuz root=/dev/sda1 rw + if [ -f "${p}initrd.img" ]; then + initrd ${p}initrd.img + fi + fi + done + fi + + true # Prevent pager requiring to accept each line instead of whole screen +} + +menuentry 'Search ISOLINUX menu (AHCI) [a]' --hotkey='a' { + search_isolinux ahci +} +menuentry 'Search ISOLINUX menu (USB) [u]' --hotkey='u' { + search_isolinux usb +} +menuentry 'Search ISOLINUX menu (ATA/IDE) [d]' --hotkey='d' { + search_isolinux ata +} +if [ -f (cbfsdisk)/grubtest.cfg ]; then +menuentry 'Load test configuration (grubtest.cfg) inside of CBFS [t]' --hotkey='t' { + set root='(cbfsdisk)' + if [ -f /grubtest.cfg ]; then + configfile /grubtest.cfg + fi +} +fi +menuentry 'Search for GRUB2 configuration on external media [s]' --hotkey='s' { + search_grub usb +} +if [ -f (cbfsdisk)/seabios.elf ]; then +menuentry 'Load SeaBIOS (payload) [b]' --hotkey='b' { + set root='cbfsdisk' + chainloader /seabios.elf +} +fi +if [ -f (cbfsdisk)/img/grub2 ]; then +menuentry 'Return to SeaBIOS [b]' --hotkey='b' { + set root='cbfsdisk' + chainloader /fallback/payload +} +fi +menuentry 'Poweroff [p]' --hotkey='p' { + halt +} +menuentry 'Reboot [r]' --hotkey='r' { + reboot +} +if [ -f (cbfsdisk)/img/memtest ]; then +menuentry 'Load MemTest86+ [m]' --hotkey='m' { + set root='cbfsdisk' + chainloader /img/memtest +} +fi |