Try:
LB_CHROOT_SQUASHFS_COMPRESSION_LEVEL="Xhc"

As the error message clearly says ;-)

On November 18, 2024 6:36:01 PM UTC, Robert Spiteri <rspiter...@gmail.com> 
wrote:
>Using bookworm, in my lb config I specified, amongst other things:
>--chroot-squashfs-compression-type lz4 --chroot-squashfs-compression-level
>hc
>
>However, when during the lb build, I am getting the following error:
>mksquashfs: Unrecognised compressor option -Xcompression-level
>mksquashfs: selected compressor "lz4".  Options supported:
> -Xhc
>Compress using LZ4 High Compression
>E: An unexpected failure occurred, exiting...
>
>In config/chroot I have the below:
># Set chroot squashfs compression level
>LB_CHROOT_SQUASHFS_COMPRESSION_LEVEL="hc"
>
># Set chroot squashfs compression type
>LB_CHROOT_SQUASHFS_COMPRESSION_TYPE="lz4"
>
>What am I missing please?

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