Hi, (I Cc: patrice.dur...@gmail.com because i see no "LDOSUBSCRIBER" in the "X-Spam-Status:" header.)
Jumping ahead: Look into the local file /etc/xattr.conf and try what happens if you change system.nfs4_acl permissions to system.nfs4_acl skip or if you newly insert thie "skip" line if no "system.nfs4_acl" is to see. ---------------------------------------------------------------------- How i came to that proposal: Patrice Duroux wrote: > $ LANG=C strace cp -p test.sh /tmp strace is a very good idea. > flistxattr(4, NULL, 0) = 16 > flistxattr(4, "system.nfs4_acl\0", 16) = 16 Somehow your file has an extended file attribute "system.nfs4_acl". Inquire by: getfattr -d test.sh (I dimly remember that one needs superuser authority to read "system." attributes. But i cannot find this in man 1 getfattr.) > openat(AT_FDCWD, "/etc/xattr.conf", O_RDONLY) = 6 According to Google this is a configuration file: https://sources.suse.com/SUSE:SLE-15-SP6:Update:CR/minimal-image/f2d0d3c549d068931c52fb2e94925dd7/INCLUDED/SUSE:SLE-15:GA::attr::efd1f5b9c0b136b5dfc37de3f2d9c977/xattr.conf ... # How to handle extended attributes when copying between files ... # Actions: # permissions - copy when trying to preserve permissions. # skip - do not copy. ... system.nfs4_acl permissions cp sees this configuration file associated to SELinux: https://sources.debian.org/src/coreutils/9.4-3.1/src/copy.c/?hl=751#L749 /* Exclude SELinux extended attributes that are otherwise handled, and are problematic to copy again. Also honor attributes configured for exclusion in /etc/xattr.conf. > fsetxattr(5, "system.nfs4_acl", > "\0\0\0\3\0\0\0\0\0\0\0\0\0\26\1\247\0\0\0\6OWNER@\0\0\0\0\0", 80, 0) = -1 > EOPNOTSUPP (Operation not supported) Here the error happens while trying to set the attribute. Shell equivalent is setfattr -n system.nfs4_acl -v '\0\0\0\3\0\0\0\0\0\0\0\0\0\26\1\247\0\0\0\6OWNER@\0\0\0\0\0' /tmp/x and yields here (even for the superuser and on ext4 filesystem) setfattr: /tmp/x: Operation not supported I'm not sure whether the value is a digestible format. But if i do the same with a name in the "user." namespace i get no error setfattr -n user.x -v '\0\0\0...lengthy.string.above...' /tmp/x Have a nice day :) Thomas
