On 2020-05-24 7:45 a.m., Pádraig Brady wrote:
On 23/05/2020 22:58, Andy wrote:
On my arch linux system, I can't see birth time with coreutils-8.32 with
either of
- zfs mounts
- ext4 mounts
But I am having success with:
- smb mounts
==============
System details:
stat --version
> stat (GNU coreutils) 8.32
pacman -Qi coreutils
> version 8.32-1
uname -a
> 5.6.14-arch1-1 #1 SMP PREEMPT Wed, 20 May 2020 20:43:19 +0000 x86_64
GNU/Linux
==========================
Reproducible example with ext4 mount:
dd if=/dev/zero of=test.img bs=1M count=10
mkfs.ext4 test.img
mkdir testext4
sudo mount -o loop test.img ~/testext4
sudo chown -R andy:andy testext4
touch testext4/bloop
stat testext4/bloop
File: testext4/bloop
Size: 0 Blocks: 0 IO Block: 1024 regular
empty
file
Device: 700h/1792d Inode: 12 Links: 1
Access: (0644/-rw-r--r--) Uid: ( 1000/ andy) Gid: ( 1000/ andy)
Access: 2020-05-23 13:48:01.000000000 -0700
Modify: 2020-05-23 13:47:59.000000000 -0700
Change: 2020-05-23 13:47:59.000000000 -0700
Birth: -
I think your ext4 file system may be too small to have appropriately
sized indoes to support birth time. The man page suggests you
would have 128 byte inodes for such a small file system.
You should be able to override that with: mkfs.ext4 -I 256 test.img
Thanks you are correct, birth time appears correctly with that option.
I think this can be closed, not a bug with coreutils. For the remaining
issue it seems zfs doesn't support statx with birth time yet:
https://github.com/openzfs/zfs/issues/8507
