All of lore.kernel.org
 help / color / mirror / Atom feed
From: Anand Jain <Anand.Jain@oracle.com>
To: Mark Murawski <markm-lists@intellasoft.net>
Cc: linux-btrfs@vger.kernel.org
Subject: Re: btrfs listing is wrong
Date: Sat, 13 Sep 2014 14:27:23 +0800	[thread overview]
Message-ID: <5413E3CB.4050800@oracle.com> (raw)
In-Reply-To: <5411B5A6.50103@intellasoft.net>



Hi Mark,

> Label: 'Root'  uuid: d71404d4-468e-47d5-8f06-3b65fa7776aa
>          Total devices 2 FS bytes used 7.46GiB
>          devid    1 size 9.31GiB used 8.06GiB path /dev/sdh6
>          devid    3 size 9.31GiB used 8.06GiB path
> /dev/disk/by-uuid/d71404d4-468e-47d5-8f06-3b65fa7776aa

  I hope this taken when Root is mounted, (just for confirmation),
  which means those are read from the btrfs kernel. Not by scanning
  the udev.

> # ls -al /dev/disk/by-uuid/d71404d4-468e-47d5-8f06-3b65fa7776aa
> lrwxrwxrwx 1 root root 10 Sep 11 10:43
> /dev/disk/by-uuid/d71404d4-468e-47d5-8f06-3b65fa7776aa -> ../../sdh6


  when we read /dev/sdh6 it was devid 1.
  When we read /dev/disk/by-uuid/d71404d4-468e-47d5-8f06-3b65fa7776aa it 
was devid 3.

  But udev also says
    /dev/disk/by-uuid/d71404d4-468e-47d5-8f06-3b65fa7776aa
  is nothing but a soft link to /dev/sdh6 !!

  Very strange !  Can you run blkid and show its output ?

  Also by any chance did we do a disk to disk copy ?

> devid 3 should really  be showing /dev/sde6

  A reboot or btrfs kernel module reload might update the stale
  and tell the facts.


Thanks, Anand

  parent reply	other threads:[~2014-09-13  6:23 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-09-11 14:45 btrfs listing is wrong Mark Murawski
2014-09-11 18:11 ` Duncan
2014-09-13  6:27 ` Anand Jain [this message]
2014-09-17  4:22   ` Mark Murawski

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=5413E3CB.4050800@oracle.com \
    --to=anand.jain@oracle.com \
    --cc=linux-btrfs@vger.kernel.org \
    --cc=markm-lists@intellasoft.net \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.