fsidoli
commented
2 years ago Further info, which may hopefully help.
cobblerd will not start. Log file showed the following error. Sure enough, 'cache_enabled' and 'reposync_rsync_flags' were not in the settings file.
2021-11-21T20:24:41 - ERROR | Settings file was not returned due to missing keys.
Traceback (most recent call last):
File "/usr/lib/python3.6/site-packages/cobbler/settings.py", line 536, in read_settings_file
validate_settings(filecontent)
File "/usr/lib/python3.6/site-packages/cobbler/settings.py", line 438, in validate_settings
return schema.validate(settings_content)
File "/usr/lib/python3.6/site-packages/schema.py", line 409, in validate
raise SchemaMissingKeyError(message, e)
schema.SchemaMissingKeyError: Missing keys: 'cache_enabled', 'reposync_rsync_flags'On investigation:
# yum history info cobbler
Updating Subscription Management repositories.
Transaction ID : 72
Begin time : Sun 17 Oct 2021 08:52:06 BST
Begin rpmdb : 1123:f2f45cc5d51fac4f9c010705bfd39a4c42436919 **
End time : Sun 17 Oct 2021 08:52:29 BST (23 seconds)
End rpmdb : 1125:80191553869f71145e77b230308077440fafac53
User : root <root>
Return-Code : Success
Releasever : 8
Command Line : upgrade
Comment :
Packages Altered:
<snip>
Upgrade cobbler-3.2.2-3.module_el8+13166+f291d70c.noarch @epel-modular
Upgraded cobbler-3.2.0-2.module_el8+10474+71f42bad.noarch @@System
Upgrade cobbler-web-3.2.2-3.module_el8+13166+f291d70c.noarch @epel-modular
Upgraded cobbler-web-3.2.0-2.module_el8+10474+71f42bad.noarch @@System
<snip>
Scriptlet output:
**1 warning: /var/lib/cobbler/distro_signatures.json created as /var/lib/cobbler/distro_signatures.json.rpmnew
2 warning: /etc/cobbler/settings saved as /etc/cobbler/settings.rpmsave
3 warning: migrating old settings to settings.yaml**Warning 2 implies the cobbler settings were saved as settings.rpmsave, but this appears to be settings.yaml.rpmsave
# ls -lhtr /etc/cobbler/settings.*
-rw-r--r-- 1 root root 20K Oct 25 2020 /etc/cobbler/settings.rpmnew
-rw-r--r-- 1 root root 20K Oct 8 05:44 /etc/cobbler/settings.yaml.rpmnew
-rw-r--r-- 1 root root 19K Oct 17 08:52 /etc/cobbler/settings.yaml.foobar
-rw-r--r-- 1 root root 21K Nov 21 21:01 /etc/cobbler/settings.yaml
[after:
#cp -ap /etc/cobbler/settings.yaml /etc/cobbler/settings.yaml.foobar
#cp -ap /etc/cobbler/settings.yaml.rpmnew /etc/cobbler/settings.yaml
]Interestingly, the "new" settings.yaml file (now called settings.yaml.foobar) appears to be using an older version of YAML compared to the "old" settings file I was using before the upgrade, so I'm not sure what was migrated across under warning 3 from the yum history dump. The two keys mentioned above were missing from the "new" settings.yaml file. I restored my original file and have removed the error above.
# head -n 5 /etc/cobbler/settings.yaml.foobar
---
# cobbler settings file
# restart cobblerd and run "cobbler sync" after making changes
# This config file is in YAML 1.0 format
# see http://yaml.org
# head -n 5 /etc/cobbler/settings.yaml
# Cobbler settings file
# Restart cobblerd and run "cobbler sync" after making changes.
# This config file is in YAML 1.2 format; see "http://yaml.org".I can also confirm, having installed cobbler on another RHEL 8 box, that the settings file installed by default is like the /etc/cobbler/settings.yaml.rpmnew file that was apparently saved during the upgrade.
If I try to restart cobblerd and then check the status, I see the following message.
# systemctl -l status cobblerd
● cobblerd.service - Cobbler Helper Daemon
Loaded: loaded (/usr/lib/systemd/system/cobblerd.service; enabled; vendor preset: disabled)
Active: inactive (dead) since Sun 2021-11-21 21:31:31 GMT; 20s ago
Process: 201183 ExecStartPost=/usr/bin/touch /usr/share/cobbler/web/cobbler.wsgi (code=exited, status=0/SUCCESS)
Process: 201182 ExecStart=/usr/bin/cobblerd -F (code=exited, status=0/SUCCESS)
Main PID: 201182 (code=exited, status=0/SUCCESS)
Nov 21 21:31:31 apollo.lcn.ucl.ac.uk cobblerd[201182]: File "/usr/bin/cobblerd", line 75, in main
Nov 21 21:31:31 apollo.lcn.ucl.ac.uk cobblerd[201182]: api = cobbler_api.CobblerAPI(is_cobblerd=True)
Nov 21 21:31:31 apollo.lcn.ucl.ac.uk cobblerd[201182]: File "/usr/lib/python3.6/site-packages/cobbler/api.py", line 102, in __init__
Nov 21 21:31:31 apollo.lcn.ucl.ac.uk cobblerd[201182]: self.deserialize()
Nov 21 21:31:31 apollo.lcn.ucl.ac.uk cobblerd[201182]: File "/usr/lib/python3.6/site-packages/cobbler/api.py", line 1528, in deserialize
Nov 21 21:31:31 apollo.lcn.ucl.ac.uk cobblerd[201182]: return self._collection_mgr.deserialize()
Nov 21 21:31:31 apollo.lcn.ucl.ac.uk cobblerd[201182]: File "/usr/lib/python3.6/site-packages/cobbler/cobbler_collections/manager.py", line 202, in deserialize
Nov 21 21:31:31 apollo.lcn.ucl.ac.uk cobblerd[201182]: % (collection.collection_type(), e)) from e
Nov 21 21:31:31 apollo.lcn.ucl.ac.uk cobblerd[201182]: cobbler.cexceptions.CX: 'serializer: error loading collection distro: "Error with distro RHEL-8.2-x86_64 - kernel \'/var//www/cobbler/distro_mirror/RHEL-8.2-x86_64/images/pxeboot/vmlinuz\' not found". Check /etc/cobbler/modules.conf'
Nov 21 21:31:31 apollo.lcn.ucl.ac.uk systemd[1]: cobblerd.service: Succeeded.I'm not sure what I'm looking for in /etc/cobbler/modules.conf.
opoplawski
SchoolGuy
This morning I came to add a new machine to my cobbler config to find the following "File not found" errors below.
The last time I ran a cobbler sync was on the 11 & 13 Oct. Back then, cobbler ran without issues. It seems that cobbler was patched on Oct 17, as per the below. Since then, nothing seems to work.
After running the cobbler sync command above, the contents of
/var/lib/tftpboot/images/${distro}/. and/var/www/cobbler/images/${distro}are empty.I imported RHEL 8.5 today and can confirm that these directories get populated on import, but subsequently delete on running
cobbler sync.I also cannot edit any profiles. My cobbler instance is completely broken as it stands.