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erofs: use advanced features to get a smaller image

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shouldn't have much practical impact other than smaller images

dedupe would also be nice to use but unfortunately is single threaded
right now and that would cause **substantial** slow down of builds.
hours for in fact. for only about 300mb reduction :(
This commit is contained in:
Harald Sitter
2025-08-18 01:12:14 +02:00
parent 4aeb642cab
commit d09be93da8
1 changed files with 1 additions and 1 deletions
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build.sh
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@@ -136,7 +136,7 @@ time zstd -T0 --rm "$ROOTFS_TAR"
# Drop flatpak data from erofs. They are in the usr/share/factory and deployed from there.
rm -rf "$OUTPUT/var/lib/flatpak"
mkdir "$OUTPUT/var/lib/flatpak" # but keep a mountpoint around for the live session
time mkfs.erofs -d0 -zzstd "$ROOTFS_EROFS" "$OUTPUT" > /dev/null 2>&1
time mkfs.erofs -d0 -zzstd -Efragments,ztailpacking "$ROOTFS_EROFS" "$OUTPUT" > /dev/null 2>&1
cp --reflink=auto "$ROOTFS_EROFS" kde-linux.cache/root.raw
# Now assemble the two generated images using systemd-repart and the definitions in mkosi.repart into $IMG.