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Official documentation can be found at https://help.ubuntu.com/.
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| bgColor | #f9faff |
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| borderStyle | solid |
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| title | Contents |
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See Kubuntu Help and Support. Download and use the PDF for the desired version.
Package Management
Disabling auto update
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| title | /etc/apt/apt.conf.d/20auto-upgrades |
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APT::Periodic::Update-Package-Lists "0";
APT::Periodic::Unattended-Upgrade "0"; |
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It also may be necessary to do:
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# apt remove unattended-upgrades |
Switching version of major packages
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Open and Ctrl+F in text editor
Upgrading Ubuntu
First, fully upgrade your existing installation:
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# apt update
# apt upgrade |
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# apt remove ros-*
# apt autoremove
# rm /etc/apt/sources.list.d/ros-latest.list
# apt update |
Comment out any lines in ~/.bashrc that will try and source a nonexistent ROS installation. |
Then (regardless of ROS installation)Finally, remove unneeded stuff, reboot to make sure the system still boots, then do the release upgrade:
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# apt autoremove
# reboot
# apt do-release-upgrade |
Troubleshooting
If something happens and you lose the terminal, try the steps at https://serverfault.com/a/427008.
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ssh <machine you're upgrading>
# screen -list
# screen -d -r root/2953.ubuntu-release-upgrade-screen-window |