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add sysresccd/.imageinfo file to the iso image, allows systemrescue-usbwriter to determine compatibility

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The upcoming systemrescue-usbwriter should work mostly independent of SystemRescue .iso version
and one systemrescue-usbwriter version should work for a wide range of SystemRescue versions.
For this to work, it has to exactly determine compatibility without any crude guesswork.
The necessary info for this is stored in the imageinfo file.

It also contains a "FORMAT_EPOCH" field that allows to explicitly declare incompatibility to older
versions of systemrescue-usbwriter in case automatic compatibility detection based on syslinux
version etc. doesn't work.
This commit is contained in:
Gerd v. Egidy 2022-11-23 22:46:05 +01:00
parent 100032695d
commit 00ccef7a07
1 changed files with 16 additions and 0 deletions
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16
build.sh
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@ -12,6 +12,7 @@ iso_label="RESCUE${iso_mainver//.}"
iso_publisher="SystemRescue <http://www.system-rescue.org>" iso_publisher="SystemRescue <http://www.system-rescue.org>"
iso_application="SystemRescue" iso_application="SystemRescue"
install_dir=sysresccd install_dir=sysresccd
image_info_file="${install_dir}/.imageinfo"
work_dir=work work_dir=work
out_dir=out out_dir=out
gpg_key= gpg_key=
@ -385,6 +386,20 @@ make_prepare() {
# rm -rf ${work_dir}/${arch}/airootfs (if low space, this helps) # rm -rf ${work_dir}/${arch}/airootfs (if low space, this helps)
} }
# Create the .imageinfo file, used by systemrescue-usbwriter to check compatibility
make_imageinfo() {
local syslinux_ver=$(grep -E "^syslinux " "${work_dir}/${arch}/airootfs/root/packages-list.txt" | sed -e "s#syslinux \(.*\)#\1#")
echo "# SystemRescue imageinfo - used by systemrescue-usbwriter to check compatibility" >"${work_dir}/iso/${image_info_file}"
echo "NAME=SystemRescue" >>"${work_dir}/iso/${image_info_file}"
echo "VERSION=${iso_version}" >>"${work_dir}/iso/${image_info_file}"
echo "ARCH=${arch}" >>"${work_dir}/iso/${image_info_file}"
echo "SYSLINUX_VERSION=${syslinux_ver}" >>"${work_dir}/iso/${image_info_file}"
echo "" >>"${work_dir}/iso/${image_info_file}"
echo "# FORMAT_EPOCH can be used to explicitly declare incompatibility" >>"${work_dir}/iso/${image_info_file}"
echo "FORMAT_EPOCH=1" >>"${work_dir}/iso/${image_info_file}"
}
# Build ISO # Build ISO
make_iso() { make_iso() {
# Copy version file # Copy version file
@ -451,4 +466,5 @@ run_once make_isolinux
run_once make_efi run_once make_efi
run_once make_efiboot run_once make_efiboot
run_once make_prepare run_once make_prepare
run_once make_imageinfo
run_once make_iso run_once make_iso