bootstrap ubuntu 18.04 x86 and 20.04 x86 error - Uyuni server 2022-08

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Problem description

Version of Uyuni Server

zypper info Uyuni-Server-release
Loading repository data...
Reading installed packages...


Information for package Uyuni-Server-release:
---------------------------------------------
Repository     : Uyuni Server Stable
Name           : Uyuni-Server-release
Version        : 2022.08-185.2.uyuni2
Arch           : x86_64
Vendor         : obs://build.opensuse.org/systemsmanagement:Uyuni
Support Level  : Level 3
Installed Size : 1.4 KiB
Installed      : Yes
Status         : up-to-date
Source package : Uyuni-Server-release-2022.08-185.2.uyuni2.src
Summary        : Uyuni Server
Description    : 
    Uyuni lets you efficiently manage physical, virtual,
    and cloud-based Linux systems. It provides automated and cost-effective
    configuration and software management, asset management, and system
    provisioning.

Details about the issue

Howdy!

Today I bootstrap one ubuntu 18.04 LTS amd64 and one ubuntu 20.04 LTS amd64 and I had the same error in both versions

ERROR: Failure deploying ext_mods: _edbc7885e4f9aac9b83b35999b68d015148caf467b78fa39c05f669c0ff89878
ext_mods

This is the same error as I had on issue #5785

I fixed this issue by changing the permissions like so:

ls -latr /var/tmp/
total 36
drwxr-xr-x 13 root   root   4096 Jun 10 10:47 ..
drwxrwxrwt  2 root   root   4096 Aug 18 16:00 cloud-init
drwxrwxr-x  5 ubuntu ubuntu 4096 Aug 18 16:03 venv-salt-minion
drwxr-xr-x  3 root   root   4096 Aug 18 16:03 .ubuntu_95935b_salt


chown -R ubuntu:ubuntu /var/tmp/.ubuntu_95935b_salt

I created this issue because it involve two ubuntu versions 18.04 and 20.04
There is an other ubuntu issue that I found with the same problem #521

The fix is already push and I will test it after uyuni 2209 is out

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I just update my uyuni server from 2022.08 to 2022.11

spacewalk-service stop
zypper ref
zypper in zypper
zypper info zypper | grep Version
Version        : 1.14.57-150400.3.9.1

zypper up --allow-vendor-change 
spacewalk-service start

# well I need to apply the patch too

zypper addrepo https://download.opensuse.org/repositories/systemsmanagement:/Uyuni:/Stable:/Patches/openSUSE_Leap_15.4/systemsmanagement:Uyuni:Stable:Patches.repo
zypper refresh
spacewalk-service stop
zypper update
spacewalk-service start
journalctl -f -u uyuni-check-database.service

After that I bootstrap successfully one ubuntu 18.04 x86 and one ubuntu 20.04 x86

thank you @mackdk and uyuni/suse manager team