> Looks like the error happens while trying to set the extended attributes > on the destination file. I don't really know how xattr works, but > it looks like it's trying to set an attribute named "system.nfs4_acl" > on a file that's in the /tmp directory.
That is more clear to me now. And so I can confirm that copying to other destination that is a local disk device gives me the same message and exitcode: $ LANG=C cp -p test.sh /home2/patrice/ ; echo $? cp: preserving permissions for '/home2/patrice/test.sh': Operation not supported 1 $ mount | grep home2 /dev/sdb7 on /home2 type ext4 (rw,relatime,stripe=32751) I should have tested this also. > I can't tell whether this is a bug in cp, or a bug in the kernel. > Someone who understands xattr might be better able to help. Just for the story, the current kernel on this system is: $ uname -srvmo Linux 6.9.8-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.9.8-1 (2024-07-07) x86_64 GNU/Linux so probably it should be reboot at some point and switch for instance to linux-image-6.9.8-amd64 that is already installed. Many thanks to all!
