Update without rebuilding the whole disk

.gitignore

@@ -3,3 +3,4 @@ chibrax.tar.gz
 rootfs
 linux-firmware
 disk.img
+diskoffset

build.sh

@@ -1,4 +1,5 @@
 #!/bin/bash
+sudo umount rootfs/proc -R
 sudo rm -rf rootfs/
 sudo rm root.iso
 sudo rm chibrax.tar.gz
@@ -24,8 +25,4 @@ sudo cp linux-firmware/* rootfs/usr/lib/firmware/ -r
 
 sudo cp rootfs\ overrides/* rootfs/ -r
 
-echo "chrooted exit when you are done"
-sudo chroot rootfs /bin/bash
-
 sudo rm rootfs/var/cache -rf
-

copyRootfsIntoTheImage.sh

@@ -0,0 +1,30 @@
+#!/bin/bash
+# we depend on a properly build rootfs
+if [ "$EUID" -ne 0 ]
+then echo "Please run as root"
+    exit
+fi
+
+if [ -z disk.img ]
+then echo "Please run createLiveImage.sh first"
+    exit
+fi
+
+
+CHIBRAX_MOUNT_POINT="/tmp/chibraxMountPoint"
+
+OFFSET=$(cat diskoffset)
+losetup --offset $OFFSET -f disk.img
+LOOP=$(losetup -a | grep -v deleted | cut -d':' -f 1)
+
+echo ${LOOP} $CHIBRAX_MOUNT_POINT $OFFSET
+mkdir $CHIBRAX_MOUNT_POINT -p
+mount ${LOOP} $CHIBRAX_MOUNT_POINT
+
+echo "coping rootfs"
+cp rootfs/* $CHIBRAX_MOUNT_POINT -r
+echo "done"
+
+echo "finishing..."
+umount $CHIBRAX_MOUNT_POINT
+losetup -d $LOOP

createLiveImage.sh

@@ -20,6 +20,8 @@ START_SECTOR=$(file disk.img | cut -d',' -f 8 | cut -d' ' -f3)
 echo "Start sector :" $START_SECTOR
 OFFSET=$((512*$START_SECTOR))
 
+echo $OFFSET > diskoffset
+
 losetup --offset $OFFSET -f disk.img
 LOOP=$(losetup -a | grep -v deleted | cut -d':' -f 1)
 
@@ -39,7 +41,7 @@ echo "installing grub"
 arch-chroot $CHIBRAX_MOUNT_POINT grub-install --target=i386-pc ${LOOP_ROOT} --modules=part_msdos
 arch-chroot $CHIBRAX_MOUNT_POINT grub-mkconfig -o /boot/grub/grub.cfg
 
-PARTUUID=$(lsblk /dev/loop7 --fs | awk '{print $4}' | grep -v LABEL)
+PARTUUID=$(lsblk $LOOP --fs | awk '{print $4}' | grep -v LABEL)
 
 echo "menuentry 'Chibrax OS' {"                               >> $CHIBRAX_MOUNT_POINT/boot/grub/grub.cfg
 echo "    set root='hd0,msdos1'"                                >> $CHIBRAX_MOUNT_POINT/boot/grub/grub.cfg
@@ -49,4 +51,5 @@ echo "}"                                                      >> $CHIBRAX_MOUNT_
 umount $CHIBRAX_MOUNT_POINT
 losetup -d $LOOP_ROOT
 losetup -d $LOOP
-chmod 755 disk.img
+#built by root but used by any, usefull to run the vm without root privileges
+chmod 757 disk.img