github actions related fixes

.github/workflows/build-rootfs.yaml

@@ -1,6 +1,12 @@
 name: build-rootfs
 run-name: Build the base Debian rootfs
 on: [push]
+
+defaults:
+  run:
+    shell: bash
+    working-directory: ./
+
 jobs:
   main:
     runs-on: ubuntu-latest
@@ -17,7 +23,7 @@ jobs:
         run: sudo DEBUG=1 ./build_rootfs.sh data/rootfs bookworm hostname=shimboot root_passwd=root username=user user_passwd=user
       
       - name: archive rootfs
-        run: tar -vcf data/rootfs.tar.gz -C data/rootfs ./
+        run: sudo tar -vcf data/rootfs.tar.gz -C data/rootfs ./
 
       - name: upload rootfs
         uses: actions/upload-artifact@v4

build.sh

@@ -27,9 +27,9 @@ fi
 . ./common.sh
 assert_deps "cpio binwalk pcregrep realpath cgpt mkfs.ext4 mkfs.ext2 fdisk rsync"
 
-output_path=$(realpath "${1}")
-shim_path=$(realpath "${2}")
-rootfs_dir=$(realpath "${3}")
+output_path=$(realpath -m "${1}")
+shim_path=$(realpath -m "${2}")
+rootfs_dir=$(realpath -m "${3}")
 
 echo "created loop device for shim"
 shim_loop=$(create_loop "${shim_path}")

build_complete.sh

@@ -41,7 +41,7 @@ sigint_handler() {
 }
 trap sigint_handler SIGINT
 
-base_dir="$(realpath $(dirname "$0"))"
+base_dir="$(realpath -m  $(dirname "$0"))"
 board="$1"
 shim_url="https://dl.osu.bio/api/raw/?path=/SH1mmer/$board.zip"
 boards_url="https://chromiumdash.appspot.com/cros/fetch_serving_builds?deviceCategory=ChromeOS"
@@ -90,7 +90,7 @@ echo "downloading shim image"
 download_and_unzip $shim_url $shim_zip $shim_bin
 
 if [ ! "${args['rootfs_dir']}" ]; then
-  rootfs_dir="$(realpath data/rootfs_$board)"
+  rootfs_dir="$(realpath -m data/rootfs_$board)"
   rm -rf $rootfs_dir
   mkdir -p $rootfs_dir
 
@@ -101,7 +101,7 @@ if [ ! "${args['rootfs_dir']}" ]; then
     username=user \
     user_passwd=user  
 else
-  rootfs_dir="$(realpath "${args['rootfs_dir']}")"
+  rootfs_dir="$(realpath -m "${args['rootfs_dir']}")"
 fi
 
 echo "patching debian rootfs"

build_squashfs.sh

@@ -47,9 +47,9 @@ compile_unionfs() {
   cd $original_dir
 }
 
-rootfs_dir=$(realpath $1)
-old_dir=$(realpath $2)
-shim_path=$(realpath $3)
+rootfs_dir=$(realpath -m $1)
+old_dir=$(realpath -m $2)
+shim_path=$(realpath -m $3)
 
 shim_rootfs="/tmp/shim_rootfs"
 root_squashfs="$rootfs_dir/root.squashfs"

image_utils.sh

@@ -17,7 +17,7 @@ make_bootable() {
 }
 
 partition_disk() {
-  local image_path=$(realpath "${1}")
+  local image_path=$(realpath -m "${1}")
   local bootloader_size=${2}
 
   #create partition table with fdisk
@@ -72,8 +72,8 @@ safe_mount() {
 }
 
 create_partitions() {
-  local image_loop=$(realpath "${1}")
-  local kernel_path=$(realpath "${2}")
+  local image_loop=$(realpath -m "${1}")
+  local kernel_path=$(realpath -m "${2}")
 
   #create stateful
   mkfs.ext4 "${image_loop}p1"
@@ -87,9 +87,9 @@ create_partitions() {
 }
 
 populate_partitions() {
-  local image_loop=$(realpath "${1}")
-  local bootloader_dir=$(realpath "${2}")
-  local rootfs_dir=$(realpath "${3}")
+  local image_loop=$(realpath -m "${1}")
+  local bootloader_dir=$(realpath -m "${2}")
+  local rootfs_dir=$(realpath -m "${3}")
 
   #mount and write empty file to stateful
   local stateful_mount=/tmp/shim_stateful
@@ -113,7 +113,7 @@ populate_partitions() {
 }
 
 create_image() {
-  local image_path=$(realpath "${1}")
+  local image_path=$(realpath -m "${1}")
   local bootloader_size=${2}
   local rootfs_size=${3}
   
@@ -126,7 +126,7 @@ create_image() {
 }
 
 patch_initramfs() {
-  local initramfs_path=$(realpath $1)
+  local initramfs_path=$(realpath -m $1)
 
   rm "${initramfs_path}/init" -f
   cp -r bootloader/* "${initramfs_path}/"

patch_rootfs.sh

@@ -24,9 +24,9 @@ if [ -z "$3" ]; then
 fi
 
 copy_modules() {
-  local shim_rootfs=$(realpath $1)
-  local reco_rootfs=$(realpath $2)
-  local target_rootfs=$(realpath $3)
+  local shim_rootfs=$(realpath -m $1)
+  local reco_rootfs=$(realpath -m $2)
+  local target_rootfs=$(realpath -m $3)
 
   rm -rf "${target_rootfs}/lib/modules"
   cp -r "${shim_rootfs}/lib/modules" "${target_rootfs}/lib/modules"
@@ -43,7 +43,7 @@ copy_modules() {
 
 copy_firmware() {
   local firmware_path="/tmp/chromium-firmware"
-  local target_rootfs=$(realpath $1)
+  local target_rootfs=$(realpath -m $1)
 
   if [ ! -e "$firmware_path" ]; then
     download_firmware $firmware_path
@@ -54,14 +54,14 @@ copy_firmware() {
 
 download_firmware() {
   local firmware_url="https://chromium.googlesource.com/chromiumos/third_party/linux-firmware"
-  local firmware_path=$(realpath $1)
+  local firmware_path=$(realpath -m $1)
 
   git clone --branch master --depth=1 "${firmware_url}" $firmware_path
 }
 
-shim_path=$(realpath $1)
-reco_path=$(realpath $2)
-target_rootfs=$(realpath $3)
+shim_path=$(realpath -m $1)
+reco_path=$(realpath -m $2)
+target_rootfs=$(realpath -m $3)
 shim_rootfs="/tmp/shim_rootfs"
 reco_rootfs="/tmp/reco_rootfs"