redroid image missed vendor

[powervv]

In https://github.com/remote-android/redroid-doc/tree/master/android-builder-docker, tar --xattrs -c vendor -C system --exclude="vendor" . | docker import -c 'ENTRYPOINT ["/init", "androidboot.hardware=redroid"]' - redroid, to generate a docker image, but I found the vendor dir is not get into the image, is this tar command correct? It seems like the first vendor dir also be excluded.

[powervv]

In My CentOS 7.2, --exclude="./vendor" is work, --exclude="vendor" will exclude the vendor.img mounted dir.

[zhouziyang]

It worked in my environment (tar (GNU tar) 1.34); Well, I will change to the command you provided (seems more robust). Thanks for pointing out!