set hostname when building the rootfs

README.md

@@ -13,7 +13,7 @@ This is a set of scripts for patching a Chrome OS RMA shim to serve as a bootloa
 - ~~host repo for patched systemd packages~~
 - ~~use debootstrap to install debian~~
 - ~~prompt user for hostname and account when creating the rootfs~~
-- auto load iwlmvm
+- ~~auto load iwlmvm~~
 - get wifi fully working
 - host prebuilt images
 - write detailed documentation
@@ -26,7 +26,7 @@ This is a set of scripts for patching a Chrome OS RMA shim to serve as a bootloa
 ## Usage:
 
 ### Prerequisites:
-- A seperate Linux PC for the build process (preferably something Debian-based)
+- A separate Linux PC for the build process (preferably something Debian-based)
 - A USB that is at least 8GB in size
 - At least 20GB of free disk space
 - An x86-based Chromebook
@@ -35,7 +35,7 @@ This is a set of scripts for patching a Chrome OS RMA shim to serve as a bootloa
 1. Grab a Chrome OS RMA Shim from somewhere. Most of them have already been leaked and aren't too difficult to find.
 2. Download a Chrome OS [recovery image](https://chromiumdash.appspot.com/serving-builds?deviceCategory=ChromeOS) for your board.
 3. Clone this repository and cd into it.
-4. Run `mkdir -P data/rootfs` to make a directory for the rootfs.
+4. Run `mkdir -p data/rootfs` to make a directory for the rootfs.
 5. Run `sudo ./build_rootfs.sh data/rootfs bookworm` to build the base rootfs.
 6. Run `sudo ./patch_rootfs.sh path_to_shim path_to_reco data/rootfs` to patch the base rootfs and add any needed drivers.
 7. Run `sudo ./build.sh image.bin path_to_shim data/rootfs` to generate a disk image at `image.bin`. 

build_image.sh

@@ -128,12 +128,3 @@ create_image() {
 
   partition_disk $image_path $bootloader_size
 }
-
-#for testing only
-if [ $0 == "./build_image.sh" ]; then
-  create_image ./test.bin 20 200
-  image_loop=$(create_loop ./test.bin)
-  create_partitions $image_loop /tmp/shim_kernel/kernel.bin
-  populate_partitions $image_loop ./tmp/shim_initramfs ./lib
-  losetup -d $image_loop
-fi

build_rootfs.sh

@@ -43,7 +43,18 @@ release_name="${2}"
 
 debootstrap $release_name $rootfs_dir http://deb.debian.org/debian/
 cp -r rootfs/* $rootfs_dir
+
+chroot_mounts="proc sys dev run"
+for mountpoint in $chroot_mounts; do
+  mount --make-rslave --rbind "/${mountpoint}" "${rootfs_dir}/$mountpoint"
+done
+
 chroot_command="DEBUG=${DEBUG} release_name=${release_name} /opt/setup_rootfs.sh"
 chroot $rootfs_dir /bin/bash -c "${chroot_command}"
 
+chroot_mounts="proc sys dev run"
+for mountpoint in $chroot_mounts; do
+  umount "${rootfs_dir}/$mountpoint"
+done
+
 echo "rootfs has been created"

patch_rootfs.sh

@@ -43,7 +43,7 @@ copy_firmware() {
     download_firmware $firmware_path
   fi
 
-  cp -r --remove-destination "${firmware_path}/"* "${target_rootfs}/lib/modules/"
+  cp -r --remove-destination "${firmware_path}/"* "${target_rootfs}/lib/firmware/"
 }
 
 download_firmware() {

rootfs/opt/setup_rootfs.sh

@@ -28,6 +28,19 @@ apt-get upgrade -y
 #install desktop
 apt-get install -y xfce4 xfce4-goodies network-manager blueman firefox-esr sudo
 
+#set up hostname and username
+read -p "Enter the hostname for the system: " hostname
+echo "${hostname}" > /etc/hostname
+tee -a /etc/hosts << END
+127.0.0.1 localhost
+127.0.1.1 ${hostname}
+
+# The following lines are desirable for IPv6 capable hosts
+::1     localhost ip6-localhost ip6-loopback
+ff02::1 ip6-allnodes
+ff02::2 ip6-allrouters
+END
+
 echo "Enter a root password:"
 passwd root
 
@@ -35,3 +48,6 @@ read -p "Enter the username for the user account: " username
 useradd -m -s /bin/bash -G sudo $username
 echo "Enter the password for ${username}:"
 passwd $username
+
+#clean apt caches
+apt-get clean