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many build script improvements

This commit is contained in:
ading2210 2024-05-03 04:59:07 -07:00
parent adf8546c30
commit 60033eb690
5 changed files with 73 additions and 37 deletions
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8
README.md
View File

@ -99,7 +99,7 @@ Alternatively, you can run each of the steps manually:
4. Plug the USB into your Chromebook and enter recovery mode. It should detect the USB and run the shimboot bootloader.
5. Boot into Debian and log in with the username and password that you configured earlier. The default username/password for the prebuilt images is `user/user`.
6. Expand the rootfs partition so that it fills up the entire disk by running `sudo growpart /dev/sdX 4` (replacing `sdX` with the block device corresponding to your disk) to expand the partition, then running `sudo resize2fs /dev/sdX4` to expand the filesystem.
7. Change the root password and regular user password by running `sudo passwd root` and `passwd user`.
7. Change the user password by running `passwd user`. The root user is disabled by default.
## FAQ:
@ -111,7 +111,11 @@ Debian Sid (the rolling release version of Debian) is also supported if you just
sudo ./build_rootfs.sh data/rootfs unstable
```
#### How can I install a desktop environment other than XFCE?
You can pass another argument to the `build_rootfs.sh` script, like this: `sudo ./build_rootfs.sh data/rootfs bookworm custom_packages=task-lxde-desktop`. The `custom_packages` argument is a list of packages (separated by spaces) that will be installed in the place of XFCE.
You can pass the `desktop` argument to the `build_complete.sh` script, like this:
```bash
sudo ./build_complete.sh grunt desktop=lxde
```
The valid values for this argument are: `gnome`, `xfce`, `kde`, `lxde`, `gnome-flashback`, `cinnamon`, `mate`, and `lxqt`.
#### Will this prevent me from using Chrome OS normally?
Shimboot does not touch the internal storage at all, so you will be able to use Chrome OS as if nothing happened. However, if you are on an enterprise enrolled device, booting Chrome OS again will force a powerwash due to the attempted switch into developer mode.

24
build_complete.sh
View File

@ -8,12 +8,19 @@ print_help() {
echo " compress_img - Compress the final disk image into a zip file. Set this to any value to enable this option."
echo " rootfs_dir - Use a different rootfs for the build. The directory you select will be copied before any patches are applied."
echo " quiet - Don't use progress indicators which may clog up log files."
echo " desktop - The desktop environment to install. This defaults to 'xfce'. Valid options include:"
echo " gnome, xfce, kde, lxde, gnome-flashback, cinnamon, mate, lxqt"
}
assert_root
assert_args "$1"
parse_args "$@"
compress_img="${args['compress_img']}"
rootfs_dir="${args['rootfs_dir']}"
quiet="${args['quiet']}"
desktop="${args['desktop']-'xfce'}"
needed_deps="wget python3 unzip zip git debootstrap cpio binwalk pcregrep cgpt mkfs.ext4 mkfs.ext2 fdisk rsync"
if [ "$(check_deps "$needed_deps")" ]; then
#install deps automatically on debian and ubuntu
@ -63,7 +70,7 @@ download_and_unzip() {
local zip_path="$2"
local bin_path="$3"
if [ ! -f "$bin_path" ]; then
if [ ! "${args['quiet']}" ]; then
if [ ! "$quiet" ]; then
wget -q --show-progress $url -O $zip_path -c
else
wget -q $url -O $zip_path -c
@ -74,7 +81,7 @@ download_and_unzip() {
cleanup_path="$bin_path"
echo "extracting $zip_path"
local total_bytes="$(unzip -lq $zip_path | tail -1 | xargs | cut -d' ' -f1)"
if [ ! "${args['quiet']}" ]; then
if [ ! "$quiet" ]; then
unzip -p $zip_path | pv -s $total_bytes > $bin_path
else
unzip -p $zip_path > $bin_path
@ -97,31 +104,30 @@ download_and_unzip $reco_url $reco_zip $reco_bin
echo "downloading shim image"
download_and_unzip $shim_url $shim_zip $shim_bin
if [ ! "${args['rootfs_dir']}" ]; then
if [ ! "$rootfs_dir" ]; then
rootfs_dir="$(realpath -m data/rootfs_$board)"
desktop_package="task-$desktop-desktop"
rm -rf $rootfs_dir
mkdir -p $rootfs_dir
echo "building debian rootfs"
./build_rootfs.sh $rootfs_dir bookworm \
custom_packages=$desktop_package \
hostname=shimboot-$board \
root_passwd=root \
username=user \
user_passwd=user
else
rootfs_dir="$(realpath -m "${args['rootfs_dir']}")"
fi
echo "patching debian rootfs"
retry_cmd ./patch_rootfs.sh $shim_bin $reco_bin $rootfs_dir "quiet=${args['quiet']}"
retry_cmd ./patch_rootfs.sh $shim_bin $reco_bin $rootfs_dir "quiet=$quiet"
echo "building final disk image"
final_image="$base_dir/data/shimboot_$board.bin"
rm -rf $final_image
retry_cmd ./build.sh $final_image $shim_bin $rootfs_dir "quiet=${args['quiet']}"
retry_cmd ./build.sh $final_image $shim_bin $rootfs_dir "quiet=$quiet"
echo "build complete! the final disk image is located at $final_image"
if [ "${args['compress_img']}" ]; then
if [ "$compress_img" ]; then
image_zip="$base_dir/data/shimboot_$board.zip"
echo "compressing disk image into a zip file"
zip -j $image_zip $final_image

15
build_rootfs.sh
View File

@ -14,9 +14,11 @@ print_help() {
echo "Valid named arguments (specify with 'key=value'):"
echo " custom_packages - The packages that will be installed in place of task-xfce-desktop."
echo " hostname - The hostname for the new rootfs."
echo " root_passwd - The root password."
echo " enable_root - Enable the root user."
echo " root_passwd - The root password. This only has an effect if enable_root is set."
echo " username - The unprivileged user name for the new rootfs."
echo " user_passwd - The password for the unprivileged user."
echo " disable_base - Disable the base packages such as zram, cloud-utils, and command-not-found."
echo "If you do not specify the hostname and credentials, you will be prompted for them later."
}
@ -49,11 +51,18 @@ done
hostname="${args['hostname']}"
root_passwd="${args['root_passwd']}"
enable_root="${args['enable_root']}"
username="${args['username']}"
user_passwd="${args['user_passwd']}"
disable_base="${args['disable_base']}"
chroot_command="/opt/setup_rootfs.sh \
'$DEBUG' '$release_name' '$packages' \
'$hostname' '$root_passwd' '$username' \
'$user_passwd' '$enable_root' '$disable_base'"
LC_ALL=C chroot $rootfs_dir /bin/bash -c "${chroot_command}"
chroot_command="/opt/setup_rootfs.sh '$DEBUG' '$release_name' '$packages' '$hostname' '$root_passwd' '$username' '$user_passwd'"
chroot $rootfs_dir /bin/bash -c "${chroot_command}"
trap - EXIT
unmount_all

5
common.sh
View File

@ -29,6 +29,11 @@ assert_deps() {
parse_args() {
declare -g -A args
for argument in "$@"; do
if [ "$argument" = "-h" ] || [ "$argument" = "--help" ]; then
print_help
exit 0
fi
local key=$(echo $argument | cut -f1 -d=)
local key_length=${#key}
local value="${argument:$key_length+1}"

54
rootfs/opt/setup_rootfs.sh
View File

@ -16,12 +16,14 @@ hostname="$4"
root_passwd="$5"
username="$6"
user_passwd="$7"
enable_root="$8"
disable_base_pkgs="$9"
custom_repo="https://shimboot.ading.dev/debian"
custom_repo_domain="shimboot.ading.dev"
sources_entry="deb [trusted=yes arch=amd64] ${custom_repo} ${release_name} main"
export DEBIAN_FRONTEND=noninteractive
export DEBIAN_FRONTEND="noninteractive"
#add shimboot repos
echo -e "${sources_entry}\n$(cat /etc/apt/sources.list)" > /etc/apt/sources.list
@ -40,14 +42,17 @@ apt-get install --reinstall $installed_systemd
#enable shimboot services
systemctl enable kill-frecon.service
#install desktop
apt-get install -y $packages cloud-utils zram-tools
#install base packages
if [ -z "$disable_base_pkgs" ]; then
apt-get install -y cloud-utils zram-tools sudo command-not-found
#set up zram
tee -a /etc/default/zramswap << END
ALGO=lzo
PERCENT=50
END
#set up zram
echo "ALGO=lzo" >> /etc/default/zramswap
echo "PERCENT=50" >> /etc/default/zramswap
#update apt-file cache
apt-file update
fi
#set up hostname and username
if [ ! "$hostname" ]; then
@ -64,28 +69,35 @@ ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
END
echo "Enter a root password:"
if [ ! "$root_passwd" ]; then
while ! passwd root; do
echo "Failed to set password, please try again."
done
else
yes "$root_passwd" | passwd root
fi
#install desktop and other custom packages
apt-get install -y $packages
if [ ! $username ]; then
read -p "Enter the username for the user account: " username
fi
useradd -m -s /bin/bash -G sudo $username
if [ ! "$user_passwd" ]; then
echo "Enter the password for ${username}:"
while ! passwd $username; do
echo "Failed to set password, please try again."
set_password() {
local user="$1"
local password="$2"
if [ ! "$password" ]; then
while ! passwd $user; do
echo "Failed to set password for $user, please try again."
done
else
yes "$password" | passwd $user
fi
}
if [ "$enable_root" ]; then
echo "Enter a root password:"
set_password root "$root_passwd"
else
yes "$user_passwd" | passwd $username
usermod -a -G sudo $username
fi
echo "Enter a user password:"
set_password "$username" "$user_passwd"
#clean apt caches
apt-get clean