I’m running a container with Ubuntu 24.04 which has a NFS mounted file system. When I try to copy from the mounted file system, I get an error message saying that preserving permissions was not supported, although the file is copied.
eager@ubuntu2404:/tmp$ df /zfs/devel
Filesystem Size Used Avail Use% Mounted on
freenas10G:/mnt/zfspool/devel 15T 42G 15T 1% /zfs/devel
eager@ubuntu2404:/tmp$ echo “this is text” > /zfs/devel/test.txt
eager@ubuntu2404:/tmp$ ls -l /zfs/devel/test.txt
-rw-rw-r-- 1 eager eager 13 Aug 11 16:25 /zfs/devel/test.txt
eager@ubuntu2404:/tmp$ cp -a /zfs/devel/test.txt .
cp: preserving permissions for ‘./test.txt’: Operation not supported
eager@ubuntu2404:/tmp$ ls -l test.txt
-rw-rw-r-- 1 eager eager 13 Aug 11 16:25 test.txt