tools/archiso
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mkarchiso: do not pad the ISO when it is not necessary

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If the ISO exceeds the max size of a CD (900 MiB), the 300 KiB padding
needed for CDs can be removed.
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nl6720 2024-05-07 14:22:42 +03:00
parent 1ae3ff6ff6
commit ead84ee9c0
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2 changed files with 6 additions and 0 deletions
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1
CHANGELOG.rst
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@ -17,6 +17,7 @@ Changed
- Increase the additional free space of the EFI partition size from 1 MiB to 8 MiB to account for file system overhead - Increase the additional free space of the EFI partition size from 1 MiB to 8 MiB to account for file system overhead
when using FAT32 (needs less than 1 MiB) and to give more space for adding custom files when repacking an ISO (e.g. when using FAT32 (needs less than 1 MiB) and to give more space for adding custom files when repacking an ISO (e.g.
when preparing it for Secure Boot). when preparing it for Secure Boot).
- Remove 300 KiB padding needed for CDs if the ISO exceeds the maximum size of a CD.
Deprecated Deprecated
---------- ----------

5
archiso/mkarchiso
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@ -1735,6 +1735,11 @@ _build_iso_image() {
typeset -f "_add_xorrisofs_options_${bootmode}" &>/dev/null && "_add_xorrisofs_options_${bootmode}" typeset -f "_add_xorrisofs_options_${bootmode}" &>/dev/null && "_add_xorrisofs_options_${bootmode}"
done done
# Remove 300 KiB padding needed for CDs if the ISO exceeds the max size of a CD
if (( $(du -s --apparent-size -B1M "${isofs_dir}/" | awk '{ print $1 }') > 900 )); then
xorrisofs_options+=('-no-pad')
fi
rm -f -- "${out_dir}/${image_name}" rm -f -- "${out_dir}/${image_name}"
_msg_info "Creating ISO image..." _msg_info "Creating ISO image..."
xorriso "${xorriso_options[@]}" -as mkisofs \ xorriso "${xorriso_options[@]}" -as mkisofs \