Bug 1299800 - dracut multipath module can't find devices without user_friendly_names turned on
dracut multipath module can't find devices without user_friendly_names turned on
Status: CLOSED ERRATA
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: dracut (Show other bugs)
7.2
x86_64 Linux
unspecified Severity high
: rc
: ---
Assigned To: dracut-maint
Release Test Team
: EasyFix, Patch
: 1360326 (view as bug list)
Depends On:
Blocks: 1203710 1289485 1313485
  Show dependency treegraph
 
Reported: 2016-01-19 04:54 EST by Pekka Wallendahl
Modified: 2017-10-30 22:58 EDT (History)
7 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Environment:
Last Closed: 2016-11-04 04:02:38 EDT
Type: Bug
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---


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External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2016:2530 normal SHIPPED_LIVE dracut bug fix and enhancement update 2016-11-03 10:17:01 EDT

  None (edit)
Description Pekka Wallendahl 2016-01-19 04:54:37 EST
Description of problem:


Version-Release number of selected component (if applicable):
dracut-033-360.el7_2.x86_64

How reproducible:
Always

Steps to Reproduce:

1. You need multipathed devices, in my cases FibreChannel LUNs 

2. In /etc/multipath.conf set following:
defaults {
    user_friendly_names  no
}

Alternatively you can set aliases for your wwids.

3. Reboot

4. Now multipathed devices appear as symlinks like /dev/mapper/360a0123456789abcdef0123456789abcde -> --/dev/dm-X

5. Run: `dracut /tmp/test.img` which gives one to many error msgs:
ls: cannot access /dev/mapper/mpath*: No such file or directory

Actual results:
Dracut skips all those devices that do not have mpath-prefixes.

Expected results:
Dracut should iterate over all devices in /dev/mapper and determine if they are multipath devices by using other means (such as checking their uuid under /sys)

Additional info:
This bug has been fixed in upstream with following commit: https://github.com/haraldh/dracut/commit/918fbfcf6b99016f1d426e7c131b9fdeaaaede89
Comment 3 Mike McCune 2016-03-28 18:31:02 EDT
This bug was accidentally moved from POST to MODIFIED via an error in automation, please see mmccune@redhat.com with any questions
Comment 5 Michal Kovarik 2016-08-03 07:12:48 EDT
Reproduced on RHEL-7.2 with dracut-033-359.el7. Verified with dracut-033-450.el7. Patch is included, no error messages when running dracut.
Comment 6 Harald Hoyer 2016-08-10 08:24:10 EDT
*** Bug 1360326 has been marked as a duplicate of this bug. ***
Comment 8 errata-xmlrpc 2016-11-04 04:02:38 EDT
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-2016-2530.html

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