erofs-utils: mkfs: improvement for unprivileged container support
When developers want to use erofs as guest container rootfs, it
requires to uid/gid offsetting for each files.
This patch adds uid/gid offsetting feature to mkfs.erofs.
Example of how to use uid/gid offset:
In case of lxc guest image.
Image creation:
mkafs.erofs --uid-offset=100000 --gid-offset=100000 file dir
Set lxc config:
lxc.idmap = u 0 100000 65536
lxc.idmap = g 0 100000 65536
Signed-off-by: Naoto Yamaguchi <naoto.yamaguchi@aisin.co.jp>
Link: https://lore.kernel.org/r/20220814022915.7964-1-naoto.yamaguchi@aisin.co.jp
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
3 files changed
