On Thu, Feb 20, 2014 at 03:43:13PM +0200, Mantas Mikulėnas wrote:
> Using util-linux 2.24.1 on Arch Linux, running `findmnt` only shows
> mounts at or under "/proc", and ignores all other mount points
> (including "/"). This only happens in "tree" mode – if I run `findmnt
> --raw` it lists all mounts correctly.
>
> This happens with custom-built 3.14-rc3 kernel, but works fine with
> Arch's stock 3.13.x (the same Arch initramfs for both). Building
> `findmnt` from util-linux.git did not change anything.
>
> > $ findmnt
> > TARGET SOURCE FSTYPE OPTIONS
> > /proc proc proc rw,nosuid,nodev,noexec,relatime
> > └─/proc/sys/fs/binfmt_misc systemd-1 autofs rw,relatime,fd=21,pgrp=1,timeout=300,minprot
> > └─/proc/sys/fs/binfmt_misc binfmt_misc binfmt_mi rw,relatime
>
> It seems there is a small difference in /proc/self/mountinfo with 3.14;
> the entry for / looks like this:
>
> > 19 0 8:3 / / rw,relatime - ext4 /dev/sda3 rw,data=ordered
Hmm... it seems like the kernel does not have pseudo rootfs entry, so
the mount IDs starts from zero.
Fixed (commit 6c373810f5b1d32824371e9dff6ee5a006388f98),
it was bug in libmount mnt_table_get_root_fs().
Karel
--
Karel Zak <kzak@xxxxxxxxxx>
http://karelzak.blogspot.com
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