206 lines
6.4 KiB
INI
206 lines
6.4 KiB
INI
set prefix=(memdisk)/boot/grub
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insmod nativedisk
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insmod ehci
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insmod ohci
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insmod uhci
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insmod usb
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insmod usbms
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insmod usbserial_pl2303
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insmod usbserial_ftdi
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insmod usbserial_usbdebug
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insmod chain
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# Serial and keyboard configuration, very important.
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serial --speed=115200 --unit=0 --word=8 --parity=no --stop=1
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terminal_input --append serial
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terminal_output --append serial
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terminal_input --append at_keyboard
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terminal_output --append cbmemc
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gfxpayload=keep
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terminal_output --append gfxterm
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# Default to first option, automatically boot after 1 second
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set default="0>0"
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set timeout=1
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# This is useful when using 'cat' on long files on GRUB terminal
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set pager=1
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insmod jpeg
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# Set a background image from CBFS
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#background_image (cbfsdisk)/background.jpg
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# Set DejaVu Sans Mono as the default font
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loadfont (memdisk)/dejavusansmono.pf2
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# Default keymap
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keymap usqwerty
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function try_user_config {
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set root="${1}"
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for dir in boot grub grub2 boot/grub boot/grub2; do
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for name in '' autoboot_ libreboot_ coreboot_; do
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if [ -f /"${dir}"/"${name}"grub.cfg ]; then
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unset superusers
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configfile /"${dir}"/"${name}"grub.cfg
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fi
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done
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done
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}
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function search_grub {
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for i in 0 1; do
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# raw devices
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try_user_config "(${1}${i})"
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for part in 1 2 3 4 5; do
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# MBR/GPT partitions
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try_user_config "(${1}${i},${part})"
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done
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done
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}
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function try_isolinux_config {
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set root="${1}"
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for dir in '' /boot; do
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if [ -f "${dir}"/isolinux/isolinux.cfg ]; then
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syslinux_configfile -i "${dir}"/isolinux/isolinux.cfg
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elif [ -f "${dir}"/syslinux/syslinux.cfg ]; then
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syslinux_configfile -s "${dir}"/syslinux/syslinux.cfg
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fi
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done
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}
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function search_isolinux {
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for i in 0 1; do
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# raw devices
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try_isolinux_config "(${1}${i})"
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for part in 1 2 3 4 5; do
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# MBR/GPT partitions
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try_isolinux_config "(${1}${i},${part})"
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done
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done
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}
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submenu 'Boot from a LUKS+LVM setup [l]' --hotkey='l' {
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menuentry 'Linux-libre kernel' {
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cryptomount -a
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set root='lvm/matrix-system'
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linux /boot/vmlinuz-linux-libre root=/dev/matrix/system cryptdevice=/dev/sda1:lvm cryptkey=rootfs:/etc/keyfile resume=/dev/mapper/matrix-swap
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initrd /boot/initramfs-linux-libre.img
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}
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menuentry 'Linux-libre-lts kernel' {
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cryptomount -a
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set root='lvm/matrix-system'
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linux /boot/vmlinuz-linux-libre-lts root=/dev/matrix/system cryptdevice=/dev/sda1:lvm cryptkey=rootfs:/etc/keyfile resume=/dev/mapper/matrix-swap
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initrd /boot/initramfs-linux-libre-lts.img
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}
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menuentry 'Linux-libre-grsec kernel' {
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cryptomount -a
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set root='lvm/matrix-system'
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linux /boot/vmlinuz-linux-libre-grsec root=/dev/matrix/system cryptdevice=/dev/sda1:lvm cryptkey=rootfs:/etc/keyfile resume=/dev/mapper/matrix-swap
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initrd /boot/initramfs-linux-libre-grsec.img
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}
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menuentry 'Linux kernel' {
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cryptomount -a
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set root='lvm/matrix-system'
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linux /boot/vmlinuz-linux root=/dev/matrix/system cryptdevice=/dev/sda1:lvm cryptkey=rootfs:/etc/keyfile resume=/dev/mapper/matrix-swap
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initrd /boot/initramfs-linux.img
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}
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}
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menuentry 'Load operating system from HDD [o]' --hotkey='o' {
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# GRUB2 handles (almost) every possible disk setup, but only the location of
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# /boot is actually important since GRUB2 only loads the user's config.
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# LVM, RAID, filesystems and encryption on both raw devices and partitions in
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# all various combinations need to be supported. Since full disk encryption is
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# possible with GRUB2 as payload and probably even used by most users, this
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# configuration tries to load the operating system in the following way:
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# 1. Look for user configuration on unencrypted devices first to avoid
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# unnecessary decryption routines in the following order:
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# 1) raw devices and MBR/GPT partitions
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search_grub ahci
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search_grub ata
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# 2) LVM and RAID which might be used accross multiple devices
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lvm="lvm/matrix-rootvol lvm/matrix-boot"
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raid="md/0 md/1 md/2 md/3 md/4 md/5 md/6 md/7 md/8 md/9"
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for vol in ${lvm} ${raid}; do
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try_user_config "(${vol})"
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done
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# 2. In case no configuration could be found, try decrypting devices. Look
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# on raw crypto devices as well as inside LVM volumes this time.
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# The user will be prompted for a passphrase if a LUKS header was found.
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for dev in ahci0 ata0 ${lvm}; do
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cryptomount "(${dev})"
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done
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# 3) encrypted devices/partitions
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for i in 0 1; do
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for part in 1 2 3 4 5; do
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for type in ahci ata; do
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cryptomount "(${type}${i},${part})"
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done
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done
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done
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# 3) encrypted devices/partitions
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search_grub crypto
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# 4) LVM inside LUKS containers
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for vol in ${lvm}; do
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try_user_config "(${vol})"
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done
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# Last resort, if all else fails
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set root=ahci0,1
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for p in / /boot/; do
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if [ -f "${p}vmlinuz" ]; then
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linux ${p}vmlinuz root=/dev/sda1 rw
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if [ -f "${p}initrd.img" ]; then
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initrd ${p}initrd.img
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fi
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fi
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done
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# Last resort (for GA-G41-ES2L which uses IDE emulation mode for SATA)
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set root=ata0,1
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for p in / /boot/; do
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if [ -f "${p}vmlinuz" ]; then
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linux ${p}vmlinuz root=/dev/sda1 rw
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if [ -f "${p}initrd.img" ]; then
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initrd ${p}initrd.img
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fi
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fi
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done
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}
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submenu 'Search for systems on external media [u]' --hotkey="u" {
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menuentry 'Search ISOLINUX menu (USB) [u]' --hotkey='u' {
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search_isolinux usb
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}
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menuentry 'Search ISOLINUX menu (AHCI) [a]' --hotkey='a' {
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search_isolinux ahci
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}
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menuentry 'Search ISOLINUX menu (CD/DVD) [d]' --hotkey='d' {
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insmod ata
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for dev in ata0 ata1 ata2 ata3 ahci1; do
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try_isolinux_config "(${dev})"
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done
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}
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menuentry 'Search for GRUB2 configuration on external media [s]' --hotkey='s' {
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search_grub usb
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}
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menuentry 'Load test configuration (grubtest.cfg) inside of CBFS [t]' --hotkey='t' {
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set root='(cbfsdisk)'
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configfile /grubtest.cfg
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}
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menuentry 'Chainload bootloader on external media [c]' --hotkey='c' {
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set root='(usb0)'
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chainloader +1
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}
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}
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menuentry 'Reboot [r]' --hotkey='r' {
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reboot
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}
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menuentry 'Poweroff [p]' --hotkey='p' {
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halt
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}
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