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Upgrade from RHEL 7.8 to 7.9

It has been a while since I posted “Upgrade from RHEL 7.4 to 7.5“. The workstation got upgraded and seems working fine.

  • upgrade from RHEL 7.7 to 7.8 on 2020-07-29
  • upgrade from RHEL 7.6 to 7.7 on 2019-09-09
  • upgrade from RHEL 7.5 to 7.6 on 2019-02-20
  • upgrade from RHEL 7.4 to 7.5 on 2018-06-06

Updated: Due to the old workstation not passing UEFI/Secure Boot or TPM prerequisites. And RHEL 7.9 is the final RHEL 7 release. It will not be upgraded to RHEL 8 (Ootpa) and keeps at RHEL 7 (Maipo).

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家庭辦公室 2020

Home Office 2020

tumblr: Home Office 2020

WFH 第四個禮拜


辦公桌 2020

搬位置 #辦公桌2020


Office Working

Use latest Firefox in RHEL and enable Flash

As title, I just want to use latest Firefox (currently 68.0.2) on my RHEL76 workstation, but some legacy systems still use Flash.

Those two packages are installed from RHEL repo:

$ sudo yum list installed | egrep "^(firefox.|flash-plugin.)"
firefox.x86_64 60.5.1-1.el7_6 @RHEL-76-x86_64-updates
flash-plugin.x86_64 2: @RHEL-76-x86_64-ibm-updates

Step 1: add firefox as exclude package in /etc/yum.conf

Step 2: Get the latest firefox and replace the ESR.

sudo mv /usr/bin/firefox /usr/bin/backup_firefox && \
wget -O- "" | sudo tar -jx -C /usr/local/ && \
sudo ln -s -r /usr/local/firefox/firefox /usr/bin/firefox

Step 3: Add Flash plugin

[ -f $HOME/.mozilla/plugins/ ] || ln -s /usr/lib64/flash-plugin/ $HOME/.mozilla/plugins/
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Upgrade from RHEL 7.4 to 7.5

Few days ago my RHEL 7.4 started to upgrade itself to 7.5. After that, the dual display setting is broken again. Last time I fixed it in RHEL 7.4 by replacing the ATI driver with old el6 version.

To fix that, just remove ~/.config/mointor.xml and reboot. It comes back.

There is another issue is “System Tray Icon is no longer available”. Some old applications provide system tray icons, and there is an easy way to fix it:

Go Tweak Tool > Tweaks > Extensions > Enable Top icons.

Reference: Bug 1548446 – System Tray Icon no longer available in gnome 3.26 in RHEL 7 out of the box