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Description of problem:

A command like "partx -u 2 /dev/vda" will always fail due to some incorrect logic in upd_parts.

Version-Release number of selected component (if applicable):

util-linux-2.23.2-16.el7.x86_64

How reproducible:

Always

Steps to Reproduce:
1. Boot a system with a disk with 2 or more partitions on a disk (which are in use).
2. Run "partx -v -u <partno> <device>" where <partno> is any valid partition number other than 1, and <device> is the disk device

Actual results:

partition: 2, disk: /dev/vda, lower: 2, upper: 2
/dev/vda: partition table type 'dos' detected
partx: /dev/vda: updating partition #2 failed: Device or resource busy
partx: /dev/vda: error updating partition 2

Expected results:

partition: 2, disk: /dev/vda, lower: 2, upper: 2
/dev/vda: partition table type 'dos' detected
/dev/vda: partition #2 resized

Additional info:

Launchpad bug:  https://bugs.launchpad.net/ubuntu/+source/util-linux/+bug/1244662
Patch: http://article.gmane.org/gmane.linux.utilities.util-linux-ng/8385

I have not tested building with the patch yet, but I have confirmed that in Fedora 21, where util-linux is new enough to contain the above fix, the issue is not present.

This has been pulled into the Atomic 1.0 override: https://brewweb.devel.redhat.com/taginfo?tagID=6363

*** Bug 1163426 has been marked as a duplicate of this bug. ***

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2015-0501.html

Question: Is there an equivalent bug report open for RHEL6?   It suffers from the same issue and I'd love to see that fixed as well.