faerbit/archiso
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Create directories and copy files to the FAT image using mtools instead of mounting the file system

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- mtools supports SOURCE_DATE_EPOCH.
- The image file is operated on directly instead of mounting the file system. This is a prerequisite to limit the commands that run with root privileges. Related to https://gitlab.archlinux.org/archlinux/archiso/-/issues/40 .
- Add a reminder comment to not get rid of the dosfstools dependency, since a mformat made FAT image can fail to boot on some systems.
This commit is contained in:
nl6720 2020-09-02 19:10:07 +03:00
parent 4b401931bd
commit 45a5d229b3
No known key found for this signature in database
GPG Key ID: 5CE88535E188D369
2 changed files with 18 additions and 34 deletions
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1
README.rst
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@ -15,6 +15,7 @@ The following packages need to be installed to be able to create an image with t
* dosfstools
* e2fsprogs
* libisoburn
* mtools
* squashfs-tools
For running the images in a virtualized test environment the following packages are required:

51
archiso/mkarchiso
View File

@ -91,22 +91,6 @@ _umount_airootfs() {
trap - EXIT HUP INT TERM
}
_mount_efibootimg() {
trap "_umount_efibootimg" EXIT HUP INT TERM
install -d -m 0755 -- "${work_dir}/mnt/efiboot"
_msg_info "Mounting '${isofs_dir}/EFI/archiso/efiboot.img' on '${work_dir}/mnt/efiboot'..."
mount -- "${isofs_dir}/EFI/archiso/efiboot.img" "${work_dir}/mnt/efiboot"
_msg_info "Done!"
}
_umount_efibootimg() {
_msg_info "Unmounting '${work_dir}/mnt/efiboot'..."
umount -d -- "${work_dir}/mnt/efiboot"
_msg_info "Done!"
rmdir -- "${work_dir}/mnt/efiboot"
trap - EXIT HUP INT TERM
}
# Show help usage, with an exit status.
# $1: exit status number.
_usage() {
@ -528,14 +512,14 @@ _make_efi() {
# Prepare kernel/initramfs on efiboot.img
_make_boot_on_fat() {
_msg_info "Preparing kernel and intramfs for the FAT file system..."
install -d -m 0755 -- "${work_dir}/mnt/efiboot/EFI/archiso"
install -m 0644 -- "${airootfs_dir}/boot/vmlinuz-linux" "${work_dir}/mnt/efiboot/EFI/archiso/"
install -m 0644 -- "${airootfs_dir}/boot/archiso.img" "${work_dir}/mnt/efiboot/EFI/archiso/"
mmd -i "${isofs_dir}/EFI/archiso/efiboot.img" ::/EFI/archiso
mcopy -i "${isofs_dir}/EFI/archiso/efiboot.img" \
"${airootfs_dir}/boot/vmlinuz-linux" "${airootfs_dir}/boot/archiso.img" ::/EFI/archiso/
if [[ -e "${airootfs_dir}/boot/intel-ucode.img" ]]; then
install -m 0644 -- "${airootfs_dir}/boot/intel-ucode.img" "${work_dir}/mnt/efiboot/EFI/archiso/"
mcopy -i "${isofs_dir}/EFI/archiso/efiboot.img" "${airootfs_dir}/boot/intel-ucode.img" ::/EFI/archiso/
fi
if [[ -e "${airootfs_dir}/boot/amd-ucode.img" ]]; then
install -m 0644 -- "${airootfs_dir}/boot/amd-ucode.img" "${work_dir}/mnt/efiboot/EFI/archiso/"
mcopy -i "${isofs_dir}/EFI/archiso/efiboot.img" "${airootfs_dir}/boot/amd-ucode.img" ::/EFI/archiso/
fi
_msg_info "Done!"
}
@ -544,33 +528,32 @@ _make_boot_on_fat() {
_make_boot_uefi-x64.systemd-boot.esp() {
_msg_info "Setting up systemd-boot for UEFI booting..."
install -d -m 0755 -- "${isofs_dir}/EFI/archiso"
# The FAT image must be created with mkfs.fat not mformat, as some systems have issues with mformat made images:
# https://lists.gnu.org/archive/html/grub-devel/2019-04/msg00099.html
mkfs.fat -C -n ARCHISO_EFI "${isofs_dir}/EFI/archiso/efiboot.img" 65536
_mount_efibootimg
install -d -m 0755 -- "${work_dir}/mnt/efiboot/EFI/BOOT"
install -m 0644 -- "${airootfs_dir}/usr/lib/systemd/boot/efi/systemd-bootx64.efi" \
"${work_dir}/mnt/efiboot/EFI/BOOT/BOOTx64.EFI"
install -d -m 0755 -- "${work_dir}/mnt/efiboot/loader/entries"
install -m 0644 -- "${profile}/efiboot/loader/loader.conf" "${work_dir}/mnt/efiboot/loader/"
mmd -i "${isofs_dir}/EFI/archiso/efiboot.img" ::/EFI ::/EFI/BOOT
mcopy -i "${isofs_dir}/EFI/archiso/efiboot.img" \
"${airootfs_dir}/usr/lib/systemd/boot/efi/systemd-bootx64.efi" ::/EFI/BOOT/BOOTx64.EFI
mmd -i "${isofs_dir}/EFI/archiso/efiboot.img" ::/loader ::/loader/entries
mcopy -i "${isofs_dir}/EFI/archiso/efiboot.img" "${profile}/efiboot/loader/loader.conf" ::/loader/
sed "s|%ARCHISO_LABEL%|${iso_label}|g;
s|%INSTALL_DIR%|${install_dir}|g;
s|%ARCH%|${arch}|g" \
"${profile}/efiboot/loader/entries/archiso-x86_64-cd.conf" > \
"${work_dir}/mnt/efiboot/loader/entries/archiso-x86_64.conf"
"${profile}/efiboot/loader/entries/archiso-x86_64-cd.conf" \
| mcopy -i "${isofs_dir}/EFI/archiso/efiboot.img" - ::/loader/entries/archiso-x86_64.conf
# shellx64.efi is picked up automatically when on /
if [[ -e "${airootfs_dir}/usr/share/edk2-shell/x64/Shell_Full.efi" ]]; then
install -m 0644 -- "${airootfs_dir}/usr/share/edk2-shell/x64/Shell_Full.efi" "${work_dir}/mnt/efiboot/shellx64.efi"
mcopy -i "${isofs_dir}/EFI/archiso/efiboot.img" \
"${airootfs_dir}/usr/share/edk2-shell/x64/Shell_Full.efi" ::/shellx64.efi
fi
# Copy kernel and initramfs
_run_once _make_boot_on_fat
_umount_efibootimg
_msg_info "Done! systemd-boot set up for UEFI booting successfully."
}