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Add support to autoconfigure grub2

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HikariKnight 2022-03-10 20:03:20 +01:00
parent ced5e7c868
commit 4e50ffb7e9
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GPG key ID: E8B239063B022F5A
1 changed files with 44 additions and 5 deletions
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49
lib/set_CMDLINE.sh
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@ -1,5 +1,6 @@
#!/bin/bash
# Function to configure systemd-boot using kernelstub
function set_KERNELSTUB () {
clear
# Tell what we are going to do
@ -27,17 +28,47 @@ function set_KERNELSTUB () {
show_FINISH
}
# Function to configure grub
function set_GRUB () {
clear
# Get the config paths
source "$SCRIPTDIR/lib/paths.sh"
local CMDLINE
CMDLINE=$(cat "$SCRIPTDIR/config/kernel_args")
# HIGHLY EXPERIMENTAL!
GRUB_CMDLINE=$(cat "/etc/default/grub" | grep -P "^GRUB_CMDLINE_LINUX_DEFAULT" | perl -pe "s/GRUB_CMDLINE_LINUX_DEFAULT=\"(.+)\"/\1/" | perl -pe "s/iommu=(pt|on)|amd_iommu=on|vfio_pci.ids=.+|vfio_pci.disable_vga=\d{1}//g" | perl -pe "s/(^\s+|\s+$)//g")
GRUB_CMDLINE_LINUX_DEFAULT=$(cat "/etc/default/grub" | grep -P "^GRUB_CMDLINE_LINUX_DEFAULT")
# Update the GRUB_CMDLINE_LINUX_DEFAULT line
perl -pi -e "s/${GRUB_CMDLINE_LINUX_DEFAULT}/GRUB_CMDLINE_LINUX_DEFAULT=\"${GRUB_CMDLINE} ${CMDLINE}\"/" "${SCRIPTDIR}/config/etc/default/grub"
echo "The script will now replace your default grub file with a new one.
Then attempt to update grub and generate a new grub.cfg.
If generating the grub.cfg file fails, you can find a backup of your grub default file here:
$SCRIPTDIR/backup/etc/default/grub
"
read -r -p "Press ENTER to continue"
sudo cp -v "$SCRIPTDIR/config/etc/default/grub" "/etc/default/grub"
sudo grub-mkconfig -o "/boot/grub/grub.cfg"
echo ""
read -r -p "Please verify there was no errors generating the grub.cfg file, then press ENTER"
}
function show_FINISH () {
clear
# Get the config paths
source "${SCRIPTDIR}/lib/paths.sh"
source "$SCRIPTDIR/lib/paths.sh"
local CMDLINE
CMDLINE=$(cat "${SCRIPTDIR}/config/kernel_args")
CMDLINE=$(cat "$SCRIPTDIR/config/kernel_args")
echo "Configuration is now complete!"
if [ $1 == 0 ];
if [ "$1" == 0 ];
then
printf "For VFIO to work properly you need to make sure these kernel parameters are in your bootloader entry:
#-----------------------------------------------#
@ -68,7 +99,7 @@ the required information that the QuickEMU project can hook into and use to add
The PCI Devices with these IDs are what you should add to your VMs:
NOTE: Some AMD GPUs will require the vendor-reset kernel module from https://github.com/gnif/vendor-reset to be installed!"
source "$SCRIPTDIR/config/quickemu/qemu-vfio_vars.conf"
source "${SCRIPTDIR}/config/quickemu/qemu-vfio_vars.conf"
for dev in "${GPU_PCI_ID[@]}"
do
@ -88,11 +119,19 @@ function set_CMDLINE () {
# If kernelstub is detected (program to manage systemd-boot)
if which kernelstub ;
then
# Configure kernelstub then exit
# Configure kernelstub
set_KERNELSTUB
BOOTLOADER_AUTOCONFIG=1
fi
# If grub exists
if which grub-mkconfig ;
then
# Configure grub
set_GRUB
BOOTLOADER_AUTOCONFIG=1
fi
show_FINISH $BOOTLOADER_AUTOCONFIG
}