From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: util-linux-owner@vger.kernel.org Received: from mx1.redhat.com ([209.132.183.28]:36121 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751365Ab3EGJsu (ORCPT ); Tue, 7 May 2013 05:48:50 -0400 Date: Tue, 7 May 2013 11:48:35 +0200 From: Karel Zak To: George Mitchell Cc: util-linux@vger.kernel.org Subject: Re: umount and findmnt commands not working with btrfs labels ... Message-ID: <20130507094835.GB7086@x2.net.home> References: <51882EA5.9080805@chinilu.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 In-Reply-To: <51882EA5.9080805@chinilu.com> Sender: util-linux-owner@vger.kernel.org List-ID: Hi George, On Mon, May 06, 2013 at 03:28:53PM -0700, George Mitchell wrote: > [root@localhost ghmitch]# umount LABEL=MAGEIA3BTR-BOOT > > umount: LABEL=MAGEIA3BTR-BOOT: not found umount --version ? It works for me (tested with util-linux 2.22 and 2.23): # mkfs.btrfs -L MAGEIA3BTR /dev/sdb1 # mkfs.btrfs -L MAGEIA3BTR-FOO /dev/sdb2 # mount LABEL=MAGEIA3BTR /mnt/test # mount LABEL=MAGEIA3BTR-FOO /mnt/test # findmnt LABEL=MAGEIA3BTR TARGET SOURCE FSTYPE OPTIONS /mnt/test /dev/sdb1 btrfs rw,relatime,ssd,space_cache # findmnt LABEL=MAGEIA3BTR-FOO TARGET SOURCE FSTYPE OPTIONS /mnt/test2 /dev/sdb2 btrfs rw,relatime,ssd,space_cache # umount LABEL=MAGEIA3BTR # umount LABEL=MAGEIA3BTR-FOO # lsblk --fs /dev/sdb NAME FSTYPE LABEL UUID MOUNTPOINT sdb ├─sdb1 btrfs MAGEIA3BTR 6dcc3293-ce27-474f-ab31-dd7a8e5bb2da └─sdb2 btrfs MAGEIA3BTR-FOO f3bb2d57-8b46-40a0-ae76-50d78268d6d9 It would be nice to have a simple reproducible scenario rather than a lot of mount -l outputs and some egrep tricks :-) You can also try LIBMOUNT_DEBUG=0xffff umount LABEL=MAGEIA3BTR-BOOT to see more details. Karel -- Karel Zak http://karelzak.blogspot.com