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|
menuentry 'Load Operating System' {
insmod ahci
insmod part_msdos
insmod part_gpt
# Iterate through all possible disks and partitions
for i in 0 1; do
# Look for fully encrypted disks, prompt for passphrase if successful
cryptomount "(ahci${i})"
# Check for filesystems replacing MBR/GPT at all, e.g. BTRFS or ZFS
x="(crypto${i})"
set root=${x}
for p in "grub/libreboot_" "boot/grub/libreboot_" "grub/" "boot/grub/"; do
if [ -f "${x}/${p}grub.cfg" ] ; then
configfile /${p}grub.cfg
fi
done
for j in 0 1 2 3 4 5 6 7 8 9; do
# Check for normal MBR/GPT disks
# GPT allows more than 4 partitions, /boot on /dev/sda7 is highly unlikely but still possible
# /boot can still be encrypted
for k in "crypto" "ahci"; do
x="(${k}${i},${j})"
set root=${x}
for p in "grub/libreboot_" "boot/grub/libreboot_" "grub/" "boot/grub/"; do
if [ -f "${x}/${p}grub.cfg" ] ; then
configfile /${p}grub.cfg
fi
done
done
done
done
# Last resort, otherwise go to GRUB shell
set root='ahci0,1'
for p in "/" "/boot/"; do
if [ -f "${p}vmlinuz" ] ; then
linux ${p}vmlinuz root=/dev/sda1 rw
if [ -f "${p}initrd.img" ] ; then
initrd ${p}initrd.img
fi
fi
done
}
menuentry 'Parse ISOLINUX menu (SATA)' {
insmod ahci
insmod part_msdos
insmod part_gpt
for i in 0 1; do
# Check for filesystems replacing MBR/GPT at all, e.g. BTRFS or ZFS
set root="(ahci${i})"
for p in "/isolinux" "/syslinux"; do
if [ -f "${p}${p}.cfg" ] ; then
syslinux_configfile -i ${p}${p}.cfg
elif [ -f "/boot${p}${p}.cfg" ] ; then
syslinux_configfile -i /boot${p}${p}.cfg
fi
done
# Check for normal MBR/GPT disks
# GPT allows more than 4 partitions, /boot on /dev/sda7 is highly unlikely but still possible
for j in 0 1 2 3 4 5 6 7 8 9; do
set root="(ahci${i},${j})"
for p in "/isolinux" "/syslinux"; do
if [ -f "${p}${p}.cfg" ] ; then
syslinux_configfile -i ${p}${p}.cfg
elif [ -f "/boot${p}${p}.cfg" ] ; then
syslinux_configfile -i /boot${p}${p}.cfg
fi
done
done
done
}
menuentry 'Parse ISOLINUX menu (USB)' {
insmod usbms
insmod part_msdos
insmod part_gpt
for i in 0 1; do
# Check for filesystems replacing MBR/GPT at all, e.g. BTRFS or ZFS
set root="(usb${i})"
for p in "/isolinux" "/syslinux"; do
if [ -f "${p}${p}.cfg" ] ; then
syslinux_configfile -i ${p}${p}.cfg
elif [ -f "/boot${p}${p}.cfg" ] ; then
syslinux_configfile -i /boot${p}${p}.cfg
fi
done
# Check for normal MBR/GPT disks
# GPT allows more than 4 partitions, /boot on /dev/sda7 is highly unlikely but still possible
for j in 0 1 2 3 4 5 6 7 8 9; do
set root="(usb${i},${j})"
for p in "/isolinux" "/syslinux"; do
if [ -f "${p}${p}.cfg" ] ; then
syslinux_configfile -i ${p}${p}.cfg
elif [ -f "/boot${p}${p}.cfg" ] ; then
syslinux_configfile -i /boot${p}${p}.cfg
fi
done
done
done
}
menuentry 'Parse ISOLINUX menu (CD/DVD)' {
insmod ahci
insmod ata
insmod iso9660
for x in (ata0) (ahci1); do
set root=${x}
for p in "/isolinux" "/syslinux"; do
if [ -f "${p}${p}.cfg" ] ; then
syslinux_configfile -i ${p}${p}.cfg
elif [ -f "/boot${p}${p}.cfg" ] ; then
syslinux_configfile -i /boot${p}${p}.cfg
fi
done
done
}
menuentry 'Switch to grubtest.cfg' {
set root='cbfsdisk'
configfile (cbfsdisk)/grubtest.cfg
}
menuentry 'Search for GRUB configuration (grub.cfg) outside of CBFS' {
insmod ahci
insmod usbms
insmod part_msdos
insmod part_gpt
for i in ahci0 ahci1 usb0 usb1; do
for j in 1 2 3 4 5 6 7 8 9; do
x="(${i},${j})"
for p in "grub" "boot/grub" "grub2" "boot/grub2"; do
if [ -f "${x}/${p}/grub.cfg ] ; then
root=$2
submenu "Load Config from ${x}" ${x} {
source /${p}/grub.cfg
}
unset superusers
fi
done
done
done
}
menuentry 'Poweroff' {
halt
}
menuentry 'Reboot' {
reboot
}
|
