Chris Down f30a29245d repart: Force --rootdir population for btrfs with compression ...

When a btrfs partition is configured with both Compression= and
CopyFiles=, we need to ensure files are copied during filesystem
creation using mkfs.btrfs --rootdir, rather than copying files
afterwards via loop device mounting.

This is required because mkfs.btrfs can only apply compression settings
when files are provided via --rootdir during filesystem creation. If we
format the filesystem first and then mount it to copy files, the
compression setting is meaningless.

Modify the partition_needs_populate() condition to force the --rootdir
code path when the format is btrfs and compression is requested.

This ensures that partition_populate_directory() runs and creates a
temporary directory with the files, which is then passed to
make_filesystem() as the root parameter, allowing mkfs.btrfs to create
the filesystem with compression applied.

Fixes: https://github.com/systemd/systemd/issues/39584

2025-11-07 18:17:08 +08:00

..

definitions

…

meson.build

libblkid: turn into dlopen() based dep

2025-09-24 18:13:10 +02:00

repart.c

repart: Force --rootdir population for btrfs with compression

2025-11-07 18:17:08 +08:00