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path: root/config/grub/config/grub.cfg
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Diffstat (limited to 'config/grub/config/grub.cfg')
-rw-r--r--config/grub/config/grub.cfg212
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