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Bug 1149761 - root login in emergency mode shows errors
Summary: root login in emergency mode shows errors
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: coreutils
Version: 21
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Ondrej Vasik
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2014-10-06 14:57 UTC by Zbigniew Jędrzejewski-Szmek
Modified: 2016-04-25 11:55 UTC (History)
15 users (show)

Fixed In Version: coreutils-8.21-22.fc20
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2014-11-01 16:21:48 UTC
Type: Bug
Embargoed:

Attachments (Terms of Use)
patch (413 bytes, text/plain)
2014-10-14 08:32 UTC, Jan Synacek 		no flags Details
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Description Zbigniew Jędrzejewski-Szmek 2014-10-06 14:57:21 UTC 
Description of problem:

After login with 'ro':
mktemp: failed to create file via template '/tmp/.colorlsXXX': Read-only file system
bash: $TMP: ambiguous redirect

Version-Release number of selected component (if applicable):
systemd-216-something.
Comment 1 Jan Synacek 2014-10-10 07:42:49 UTC 
I wonder... Does this mean that systemd should remount / as rw before running emergency.service?
Comment 2 Zbigniew Jędrzejewski-Szmek 2014-10-10 13:05:27 UTC 
No, we shouldn't remount anything for the sake of some broken script. Sorry for the terseness of this bug report, it was more of a note to self while debugging a different issue. I think we should investigate what scripts give those warnings and file bugs in appropriate places. The thing with $TMP looks like a bash programming error, and the other thing can probably be fixed with a redirect do /dev/null.
Comment 3 Jan Synacek 2014-10-14 07:50:22 UTC 
The culprit is /etc/profile.d/colorls.sh, line 35 and 38.
Comment 4 Ondrej Vasik 2014-10-14 08:27:48 UTC 
Ok, can be done better way - although ro /tmp will likely cause other things to fail as well...
Comment 5 Jan Synacek 2014-10-14 08:32:40 UTC 
Created attachment 946731 [details]
patch
Comment 6 Jan Synacek 2014-10-14 08:34:58 UTC 
(In reply to Ondrej Vasik from comment #4)
> Ok, can be done better way - although ro /tmp will likely cause other things
> to fail as well...

Yes, bash completion barfs errors everytime TAB is pressed.

Zbyszek, shouldn't emergency mode mount /tmp?
Comment 7 Fedora Update System 2014-10-15 10:06:22 UTC 
coreutils-8.22-19.fc21 has been submitted as an update for Fedora 21.
https://admin.fedoraproject.org/updates/coreutils-8.22-19.fc21
Comment 8 Zbigniew Jędrzejewski-Szmek 2014-10-15 13:32:15 UTC 
In normal setup, /tmp is tmpfs, and mounting it is fine. But /tmp could be a real filesystem, and than mounting it could hold down a partition and interfere with the tasks that one does in emergency mode. Yet another issue is that if / is mounted rw, and /tmp is *not* mounted, various scripts will scribble in the /tmp dir anyway. So maybe we should mount it, since otherwise people will get warnings about mounting over a non-empty directory. I'm not sure.
Comment 9 Fedora Update System 2014-10-16 17:17:57 UTC 
Package coreutils-8.22-19.fc21:
* should fix your issue,
* was pushed to the Fedora 21 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing coreutils-8.22-19.fc21'
as soon as you are able to.
Please go to the following url:
https://admin.fedoraproject.org/updates/FEDORA-2014-12937/coreutils-8.22-19.fc21
then log in and leave karma (feedback).
Comment 10 Fedora Update System 2014-11-01 16:21:48 UTC 
coreutils-8.22-19.fc21 has been pushed to the Fedora 21 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 11 Fedora Update System 2015-05-14 18:51:49 UTC 
coreutils-8.21-22.fc20 has been submitted as an update for Fedora 20.
https://admin.fedoraproject.org/updates/coreutils-8.21-22.fc20
Comment 12 Fedora Update System 2015-05-30 15:37:25 UTC 
coreutils-8.21-22.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.
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