Re: [arch-general] Cannot set xattr

André Ramaciotti da Silva schrieb:

The problem is: I can't use them at all. I'm using the default kernel, which, according to /proc/config.gz has:

CONFIG_EXT4_FS_XATTR=y

and I'm using ext4, evidently.

I've tried doing the following:

$ echo 'asd' > test $ attr -s user.author -V andre test attr_set: Operation not supported Could not set "user.author" for test

but, as you can see, it doesn't work. Running it as root doesn't work, too. I've also made a small C program, but it also fails to set the xattr, returning ENOTSUP (operation not supported), so it isn't a problem with 'attr'.

That's because if you want to use user.* extended attributes on ext2/3/4, you have to mount with the user_xattr mount options. Simply add it to fstab.