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    [SOLVED] Just FYI: current update seams to break NUT dependancies

    Scheduled Pinned Locked Moved Unsolved XCP-ng
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    • C
      cobordism
      last edited by

      Just for the record, I get the same snmp errors with OpenIPMI instead of nut.

      # yum update --disablerepo=* --enablerepo=xcp-ng-base,xcp-ng-updates 
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
Excluding mirror: updates.xcp-ng.org
 * xcp-ng-base: mirrors.xcp-ng.org
Excluding mirror: updates.xcp-ng.org
 * xcp-ng-updates: mirrors.xcp-ng.org
Resolving Dependencies
--> Running transaction check
---> Package net-snmp.x86_64 1:5.7.2-52.1.xcpng8.3 will be updated
---> Package net-snmp.x86_64 1:5.9.3-8.1.xcpng8.3 will be an update
---> Package net-snmp-agent-libs.x86_64 1:5.7.2-52.1.xcpng8.3 will be updated
---> Package net-snmp-agent-libs.x86_64 1:5.9.3-8.1.xcpng8.3 will be an update
---> Package net-snmp-libs.x86_64 1:5.7.2-52.1.xcpng8.3 will be updated
--> Processing Dependency: libnetsnmp.so.31()(64bit) for package: OpenIPMI-2.0.23-2.el7.x86_64
---> Package net-snmp-libs.x86_64 1:5.9.3-8.1.xcpng8.3 will be an update
--> Finished Dependency Resolution
Error: Package: OpenIPMI-2.0.23-2.el7.x86_64 (@xcp-ng-base)
           Requires: libnetsnmp.so.31()(64bit)
           Removing: 1:net-snmp-libs-5.7.2-52.1.xcpng8.3.x86_64 (@xcp-ng-updates)
               libnetsnmp.so.31()(64bit)
           Updated By: 1:net-snmp-libs-5.9.3-8.1.xcpng8.3.x86_64 (xcp-ng-updates)
              ~libnetsnmp.so.40()(64bit)
           Available: 1:net-snmp-libs-5.7.2-33.el7_5.2.x86_64 (xcp-ng-base)
               libnetsnmp.so.31()(64bit)
           Available: 1:net-snmp-libs-5.7.2-51.1.xcpng8.3.x86_64 (xcp-ng-base)
               libnetsnmp.so.31()(64bit)
           Available: 1:net-snmp-libs-5.7.2-51.2.xcpng8.3.x86_64 (xcp-ng-base)
               libnetsnmp.so.31()(64bit)
           Available: 1:net-snmp-libs-5.7.2-51.3.xcpng8.3.x86_64 (xcp-ng-base)
               libnetsnmp.so.31()(64bit)
      rzrR 1 Reply Last reply
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      • rzrR
        rzr Vates 🪐 XCP-ng Team @cobordism
        last edited by rzr

        @cobordism said:

        yum update --disablerepo=* --enablerepo=xcp-ng-base,xcp-ng-updates

        It's currently in testing and will move to updates if everything (not only nut) is ok:

        yum install --disablerepo=* \
   --enablerepo=xcp-ng-base,xcp-ng-updates,xcp-ng-testing  nut
        1 Reply Last reply
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        • F
          FritzGerald
          last edited by

          Hi, I just wanted to comment that the provided packages work for all my server. Thank you!

          1 Reply Last reply
          Reply Quote 4
          • K
            Kajetan321 @FritzGerald
            last edited by

            @FritzGerald Thank you for taking the time to write up the install procedure. I was able to follow it on my end and it seems to be working. What commands do you use to set the three services to start up automatically at boot up? Right now if I reboot and run upsc apc@localhost it throws an error until I manually do:

            upsdrvctl start
systemctl start nut-server.service
systemctl start nut-monitor.service
            F 1 Reply Last reply
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            • F
              FritzGerald @Kajetan321
              last edited by

              @Kajetan321 Hi, sorry. I am away from office and I can't tell you that off the top of my head right now. I get back to you during the week.

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              • F
                FritzGerald @FritzGerald
                last edited by FritzGerald

                Hi @kajetan321, it has been a little while when setting this up. And I have to admit, that I am not sure weather the upcoming instructions are complete. So please take it as an indication:

                #################################
                Add Service for ups-driver
                #################################

                nano /etc/systemd/system/ups-driver.service

                [Unit]
Description=NUT UPS Driver
After=network-online.target
Wants=network-online.target
Before=nut-server.service

[Service]
Type=oneshot
ExecStart=/usr/sbin/upsdrvctl start
ExecStop=/usr/sbin/upsdrvctl stop
RemainAfterExit=yes

[Install]
WantedBy=multi-user.target

                ###################################
                Add Requirement for nut-server
                #################################

                mkdir -p /etc/systemd/system/nut-server.service.d
nano /etc/systemd/system/nut-server.service.d/ups-driver.conf

                [Unit]
Requires=ups-driver.service
After=ups-driver.service

                ###################################
                Add Requirement for nut monitor
                #################################

                mkdir -p /etc/systemd/system/nut-monitor.service.d
nano /etc/systemd/system/nut-monitor.service.d/nut-server.conf

                [Unit]
Requires=nut-server.service
After=nut-server.service

                ###################################
                Enable services
                ###################################

                systemctl daemon-reload
systemctl enable ups-driver.service
systemctl enable nut-server.service
systemctl enable nut-monitor.service

systemctl start nut-monitor.service

                ###################################
                Anaylze tools
                ###################################

                systemctl list-dependencies nut-monitor.service
systemd-analyze critical-chain nut-monitor.service
systemctl show nut-monitor.service -p Requires -p Wants -p After
systemctl show nut-server.service -p Requires -p Wants -p After

                Please let me know if it works, since I then would update my documentation above

                K 2 Replies Last reply
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                • K
                  Kajetan321 @FritzGerald
                  last edited by

                  @FritzGerald Understood. Thanks for posting. I will get back to this as soon as I have some time.

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                  • K
                    Kajetan321 @FritzGerald
                    last edited by Kajetan321

                    @FritzGerald I followed the procedure outline above. I did not see any errors when following the procedure however when I rebooted and then ran "upsc apc@localhost" I got "Error: Connection failure: Cannot assign requested address"

                    When I run "sudo systemctl status nut-server" I get " Active: inactive (dead)"

                    Running

                    upsdrvctl start
systemctl start nut-server.service
systemctl start nut-monitor.service

                    fixes the issue. It looks like nut-server still does not start automatically at boot. How would I troubleshoot this further? I'm not a Linux system admin 😞

                    Gemini suggested rebooting and running "journalctl -u nut-server.service -b 0" which resulted in "-- No entries --"

                    F 1 Reply Last reply
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                    • F
                      FritzGerald @Kajetan321
                      last edited by FritzGerald

                      @Kajetan321

                      I looked into my server and I think I forget some points.

                      First and foremost I have to say, modifying the systemd files can make you system unbootable! It should not happen, but there is chance since we are also modifying some "natively shipped files". So an update can break your working configuration again and that is not the fault of XCP-NG!!!

                      That said I assume that after a reboot (prior to any of any input of yours) if you enter:

                      systemctl status ups-driver.service nut-server.service nut-monitor.service

                      you will see that "ups-driver.service" is loaded and active, but the 2 other services are not. If thats the case I think I can help you since it is related to a dependency problem during boot up. Please do the following:

                      Remove "nut-driver.target" dependency from "nut-server.service" by calling

                      nano /lib/systemd/system/nut-server.service

                      and remove nut-driver.target from routine. I prefer to duplicate and comment the to be modified rows to keep the original code. It then should look like this. DO NOT COPY AND PASTE, read, compare and modify carefully!

                      
[Unit]
Description=Network UPS Tools - power devices information server
#After=local-fs.target network.target nut-driver.target
After=local-fs.target network.target
# We don't Require drivers to be successfully started! This would be
# a change of behavior compared to init SysV, and could prevent from
# accessing successfully started, at least to audit a system.
#Wants=nut-driver.target
Wants=
# The `upsd` is a networked service (even if bound to a `localhost`)
# so it requires that the OS has some notion of networking already.
# Extending the unit does not require *this* file to be edited, you
# can instead drop in an additional piece of configuration, e.g. add
# a `/etc/systemd/system/nut-server.service.d/network.conf` with:
#   [Unit]
#   Requires=network-online.target
#   After=network-online.target
Requires=network.target
Before=nut-monitor.service
PartOf=nut.target

[Service]
EnvironmentFile=-/etc/ups/nut.conf
SyslogIdentifier=%N
# Note: foreground mode by default skips writing a PID file (and
# needs Type=simple); can use "-FF" here to create one anyway:
ExecStart=/usr/sbin/upsd -F
ExecReload=/usr/sbin/upsd -c reload -P $MAINPID

[Install]
WantedBy=nut.target

                      Afterwards enable nut.target:

                      systemctl enable nut.target

                      Then call:

                      systemctl daemon-reload
systemctl start nut.target
systemctl start nut-monitor.service

                      Now it should work even after reboot

                      K 1 Reply Last reply
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                      • poddingueP poddingue marked this topic as a question
                      • K
                        Kajetan321 @FritzGerald
                        last edited by

                        @FritzGerald Thank you for the follow up. It looks to me like none of the three services are running after a reboot.

                        Executing

                        systemctl status ups-driver.service nut-server.service nut-monitor.service

                        Results in:

                        ● ups-driver.service - NUT UPS Driver
   Loaded: loaded (/etc/systemd/system/ups-driver.service; disabled; vendor preset: disabled)
   Active: inactive (dead)

● nut-server.service - Network UPS Tools - power devices information server
   Loaded: loaded (/usr/lib/systemd/system/nut-server.service; enabled; vendor preset: disabled)
  Drop-In: /etc/systemd/system/nut-server.service.d
           └─ups-driver.conf
   Active: inactive (dead)

● nut-monitor.service - Network UPS Tools - power device monitor and shutdown controller
   Loaded: loaded (/usr/lib/systemd/system/nut-monitor.service; enabled; vendor preset: disabled)
  Drop-In: /etc/systemd/system/nut-monitor.service.d
           └─nut-server.conf
   Active: inactive (dead)
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