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Bug 1778771 - 20-zipl-kernel.install deletes /tmp when kernel-core is installed in s390x container image
Summary: 20-zipl-kernel.install deletes /tmp when kernel-core is installed in s390x co...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: s390utils
Version: 8.0
Hardware: s390x
OS: Linux
unspecified
unspecified
Target Milestone: rc
: 8.0
Assignee: Dan Horák
QA Contact: Vilém Maršík
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2019-12-02 13:24 UTC by Dan Horák
Modified: 2021-05-11 07:34 UTC (History)
4 users (show)

Fixed In Version: s390utils-2.6.0-24.el8
Doc Type: If docs needed, set a value
Doc Text:
Clone Of: 1726286
Environment:
Last Closed: 2020-04-28 16:49:37 UTC
Type: Bug
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2020:1826 0 None None None 2020-04-28 16:50:03 UTC

Description Dan Horák 2019-12-02 13:24:48 UTC 
We want to merge the Fedora container related change to RHEL-8 too.

+++ This bug was initially created as a clone of Bug #1726286 +++

Description of problem:
20-zipl-kernel.install deletes /tmp when kernel-core is installed in s390x container image after it gets invoked by kernel-install with 3rd parameter in format of /tmp/kernel-install.5GcCL

Version-Release number of selected component (if applicable):
s390utils-base-2.8.0-3.fc30.s390x

How reproducible:
Always

Steps to Reproduce:
1.Run fedora:30 container(podman run --rm -ti registry.fedoraproject.org/fedora:30 /bin/bash)
2.Run "dnf update" or "dnf distro-sync" in it
3.Run "dnf install kernel-core" in it
4.Run "mktemp" in it

Actual results:
$mktemp
mktemp: failed to create file via template ‘/tmp/tmp.XXXXXXXXXX’: No such file or directory
$ls /
bin  boot  dev  etc  home  lib  lib64  lost+found  media  mnt  opt  proc  root  run  sbin  srv  sys  usr  var

Expected results:
$mktemp
/tmp/tmp.c0aVsVxDMe
$ls /
bin  boot  dev  etc  home  lib  lib64  lost+found  media  mnt  opt  proc  root  run  sbin  srv  sys  tmp  usr  var

--- Additional comment from Dan Horák on 2019-07-02 13:53:24 UTC ---

the offending line is https://src.fedoraproject.org/rpms/s390utils/blob/master/f/20-zipl-kernel.install#_15

--- Additional comment from Javier Martinez Canillas on 2019-07-02 14:21:52 UTC ---

I've provided a patch to fix this issue. Could you please test it?

There's also a s390utils-2.8.0-4.fc30 scratch build here:

http://koji.fedoraproject.org/koji/taskinfo?taskID=36003888

--- Additional comment from Jakub Čajka on 2019-07-02 14:41:49 UTC ---

(In reply to Javier Martinez Canillas from comment #2)
> Created attachment 1586726 [details]
> [PATCH] - fix /tmp being deleted when kernel-core is installed in a 
> container (#1726286)
> 
> I've provided a patch to fix this issue. Could you please test it?
> 
> There's also a s390utils-2.8.0-4.fc30 scratch build here:
> 
> http://koji.fedoraproject.org/koji/taskinfo?taskID=36003888

Works for me in the container. Thanks for quick fix :).
Comment 2 Vilém Maršík 2020-02-06 23:11:02 UTC 
How should I reproduce this? You probably did not mean to install a s390utils.fc30 on the RHEL8 host, but the Fedora container runs without s390utils-base package. Even if I installed it inside, I still could not reproduce the problem. So what RHEL on & what s390utils do I need on the host to see the problem?
Comment 3 Dan Horák 2020-02-14 12:55:53 UTC 
The host shouldn't matter, the problem will be inside the container. Here it will be a RHEL-8 "base" container for the step #1 in the "Steps to reproduce". I don't think it can be reproduced without the container (on plain rhel8 machine).
Comment 4 Vilém Maršík 2020-03-11 15:02:36 UTC 
Cannot reproduce with RHEL-8.1 as host and F30 as guest:
# cat /etc/redhat-release
Red Hat Enterprise Linux release 8.1 (Ootpa)
# podman run --rm -ti registry.fedoraproject.org/fedora:30 /bin/bash
(...)
[root@73e536f5bf76 /]# dnf update
(...)
Complete!
[root@73e536f5bf76 /]# dnf install kernel-core
(...)
Complete!
[root@73e536f5bf76 /]# mktemp
/tmp/tmp.s0RWkmRjIY
[root@73e536f5bf76 /]#

Did you mean I should try RHEL-8 as guest? What would the "-ti" parameter be in that case?
Comment 5 Javier Martinez Canillas 2020-03-11 15:41:04 UTC 
Hello Vilém,

(In reply to Vilém Maršík from comment #4)
> Cannot reproduce with RHEL-8.1 as host and F30 as guest:
> # cat /etc/redhat-release
> Red Hat Enterprise Linux release 8.1 (Ootpa)
> # podman run --rm -ti registry.fedoraproject.org/fedora:30 /bin/bash

It's the other way around, you need a RHEL8 container to reproduce this. The example command in Comment 1 uses a Fedora container image because the bug was originally reported in Fedora and then cloned for RHEL8.
Comment 6 Vilém Maršík 2020-03-11 23:57:48 UTC 
I would have tried, but could not find a registry record for RHEL-8 (for the "-ti" switch). Do you know where to find it?
Comment 7 Vilém Maršík 2020-03-30 19:31:34 UTC 
Patch ef56cfef7ac631273ef82ba0fc3c9b58d72ee9d7 in rhel-8.2.0 branch of s390utils.git seems to fix this. Could not find a RHEL8 registry for podman, but rather confident that this simple fix will behave the same way as in Fedora. Setting Verified/Sanityonly.
Comment 9 errata-xmlrpc 2020-04-28 16:49:37 UTC 
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://access.redhat.com/errata/RHBA-2020:1826
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