From e8900c1aec3c79f0ef7ecad60c9c6f3b4ca61202 Mon Sep 17 00:00:00 2001
From: Gardouille <gardouille@gmail.com>
Date: Thu, 10 Dec 2020 19:55:33 +0100
Subject: [PATCH] Add possibility to skip grub installation

---
 debian/chroot.install | 27 +++++++++++++++++----------
 1 file changed, 17 insertions(+), 10 deletions(-)

diff --git a/debian/chroot.install b/debian/chroot.install
index 3a1f13f..684eb18 100755
--- a/debian/chroot.install
+++ b/debian/chroot.install
@@ -27,6 +27,8 @@ manage_luks=1
 luks_passphrase="generic key"
 luks_key_file="/tmp/luks.keyfile.temp"
 luks_pv_name=$(basename "${hdd}"2_crypt)
+## If the script should manage everything (partition, package,…) related to grub
+manage_grub=0
 ## Colors definition {{{
 BLACK='\033[49;30m'
 BLACKB='\033[49;90m'
@@ -126,12 +128,14 @@ mkswap -L sw01 -- /dev/mapper/"${vgname}"-swap || exit 4
 mkdir -p -- /target
 mountpoint -q /target            || mount -- /dev/mapper/"${vgname}"-root /target
 
-### boot - grub
-mkdir -p -- /target/boot
-mountpoint -q /target/boot       || mount -- ${hdd}1 /target/boot
-boot_uuid=$(blkid | grep "${hdd}1" | sed 's/.*1.*UUID="\(.*\)" TYPE.*/\1/')
-### Prepare an fstab file
-printf '%b\n' "UUID=${boot_uuid}               /boot       ext3 defaults                   0 0" > /tmp/target.fstab
+if [ "${manage_grub}" -eq 0 ]; then
+	### boot - grub
+	mkdir -p -- /target/boot
+	mountpoint -q /target/boot       || mount -- ${hdd}1 /target/boot
+	boot_uuid=$(blkid | grep "${hdd}1" | sed 's/.*1.*UUID="\(.*\)" TYPE.*/\1/')
+	### Prepare an fstab file
+	printf '%b\n' "UUID=${boot_uuid}               /boot       ext3 defaults                   0 0" > /tmp/target.fstab
+fi
 
 ### Prepare the base system tree according to the expected file system
 if [ "${manage_btrfs}" -eq 0 ]; then
@@ -272,10 +276,13 @@ chroot /target dpkg-reconfigure --frontend noninteractive tzdata
 ## }}}
 ## Kernel and Grub {{{
 ### Install
-chroot /target aptitude install --assume-yes --without-recommends -- linux-image-amd64 grub-pc
-chroot /target grub-install "${hdd}"
-chroot /target update-grub
-
+if [ "${manage_grub}" -eq 0 ]; then
+	chroot /target aptitude install --assume-yes --without-recommends -- linux-image-amd64 grub-pc
+	chroot /target grub-install "${hdd}"
+	chroot /target update-grub
+else
+	chroot /target aptitude install --assume-yes --without-recommends -- linux-image-amd64
+fi
 ## }}}
 ## Hostname {{{