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====== Change in Yum Update Location ======

Email from Jon ->

"just created a redhat directory on astrobackup2, and modified
/etc/auto.home on astronomy to point the automount (/home/redhat) to it,
the did a 
<code>
  cd /var/yp 
  make
</code>
to push this to NIS for all other machines."


====== Update Schedule ======

Zach will start updating machines on a monthly basis on the last day of the month. After kernel updates, reboots will be required in order for new kernel to take effect (best schedule for reboots?). 

== Last Time 'Yum Update' Was Run on the Machine?

**Best practice** - Run 'yum update' on one machine first to get an idea of what's being installed/updated. Then once that completes, you can run the doit scripts for CentOS 6 and 7 machines. For example: 
<code>
[user@astronomy]$ /home/local/etc/doit-centos7 yum update -y
</code>

It is perhaps a good idea, after the doit script runs, to check the history to make sure no errors were noted:
<code>
[user@astronomy]$ /home/local/etc/doit-centos7 yum history
</code>

And then list any oddities in the below table --

**NOTE** - At 9:00am on 7-31-2020, Zach ran the doit script for CentOS7 machines. (this note is for me to track how long this process takes for a '''long''' update. Updates finished at ~3:30pm). 


**Ran DO-IT centos7 script across all turned on machines on June 21st**

||**Machine Name**||**Last Updated?** ||**Notes           **||
|| Achernar       || 6-1-2021         ||                    ||
|| Acrux          || 6-1-2022         || Zach's Office      ||
|| Aldebaran      || 7-2-2021         ||                    ||
|| Alphaboo       || 6-1-2022         ||                    ||
|| Altair         || 6-1-2022         ||                    ||
|| Antares        || 12-1-2020        ||exclude kernel      ||
|| Arcturus       || 7-6-2021         ||                    ||
|| Astrogpu       || 7-2-2021         ||                    ||
|| Babylon        || 7-2-2021         || update & shutdown  ||
|| Bellatrix      || 7-2-2021         || update & shutdown  ||
|| Betelgeuse     || 7-2-2021         ||                    ||
|| Boomerang      || 6-1-2022         ||                    ||
|| Canopus        || 6-1-2021         || (unplugged 6/30)   ||
|| Capella        || 7-2-2021         ||                    ||
|| Castor         || 7-6-2021         ||                    ||
|| Denebola       || 6-1-2022         ||                    ||
|| Fomalhaut      || 7-2-2021         ||                    ||
|| Gacrux         || 11-25-2020       || CentOS 6           ||
|| Hadar          || 6-1-2022        || ISSUE (see below)  ||
|| Hyades         || 7-2-2021         ||                    ||
|| Kermodei       || 6-30-2021        ||                    ||
|| Kochab         || 6-1-2022        ||                    ||
|| Matrix         || 6-1-2022         ||                    ||
|| Milkyway       || 6-30-2021        || Exclude Kernel     ||
|| Mimosa         || 6-1-2022         ||                    ||
|| Mintaka        || 7-7-2021         ||                    ||
|| Oort           || 10-25-2020       || Exclude Kernel (Shut Down)||
|| Orion          || 6-30-2022        || Upgraded to OS7    ||
|| Phoebe         || 6-1-2021        ||                    ||
|| Polaris        || 6-1-2022        ||                    ||
|| Pollux         || 6-1-2022        ||                    ||
|| Praesepe       || 7-2-2021         || Exclude Kernel     ||
|| Regulus        || 7-6-2021         ||Update & Shutdown   ||
|| Rigel          || 6-1-2022         ||                    ||
|| Solarstorm     || 6-29-2020        ||                    ||
|| Spica          || 7-2-2021         ||                    ||
|| Tequila        || 6-1-2022         ||                    ||
|| Vega           || 6-30-2021        ||                    ||
|| Virgo          || 6-30-2021        || CHECK              ||
|| Wasp           || 6-1-2022         ||                    ||
|| Zenith         || 6-29-2021        ||Turned on - 3/22/21 ||

**NOTE** - On Sept. 30th - Zach Noticed that Acrux, Mintake, Spica, and Zenith were shut down. They were shut down by means OTHER than Zach or Jon. Actions - Zach will go into the building Next week to inspect these machines, power them on and access them. Zach went into the department on 10-5-2020. Machines were okay. No foul play detected. 

====== Last Time a Update was done on Sever/RAID device? ======
||**Machine Name**||**Last Updated?**||** Notes**                                         ||
|| Sol            ||  5-7-2021       || Excluded HP packages, reboot                      ||
|| AstroData      ||  7-7-2021       || Updated apps, need to update firmware             ||
|| Helix          ||  6-1-2022       || Updated applications Security risks?              ||
|| AstroBackup3   ||  7-7-2021       || No updates needed at this time                    ||
|| Cosmology1     ||  7-7-2021       || Firmware and applications update                  ||
|| Cosmology4     ||                 || Hardware failure - data moved to hyades / Cos5    ||
|| Cosmology5     ||  7-7-2021       || Firmware and applications update                  ||  
|| SSOC           ||  7-7-2021       || yum update --skip-brokeny                         ||

**NOTE** For AstroBackUp, AstroBackUp3, Cosmology1,4,5 -> you need to log in through the astronomy.nmsu.edu subnet and follow the GUI to update these machines. 


====== Possible Issues ======
Some machines will not be able to update the kernel due to small partition sizes in /boot file system. 

Now in Rocky9 with DNF, there is a DNF tool for this process that does it automatically:

<code>
dnf remove --oldinstallonly
</code>

In order to clear up space:

First, use yum to check the kernel installed:
<code>
[root@machine ~]# yum list kernel
</code>

Then, figure out which kernel is the active one:
<code>
[root@machine ~]# uname -a
</code>

Then, use yum to remove kernels that is '''NOT''' the active kernal:
<code>
[root@machine ~]# yum remove kernel-old_version_number
</code>

Also, an additional work around is to just exclude the kernel in the update:
<code>
[root@machine ~]# yum update --exclude=kernel*
</code>

====== ISSUES ======
On 6-30-2021 Zach did an update to Hadar - In middle of the update, Hadar black screened and rebooted. This affected the display mainly (but other packages might have been affected). zach had to reinstalled package gdm (yum reinstall gdm). 


====== Installed Repos ======
https://www.postgresql.org/download/linux/redhat/