I work in a college lab where we have 20 stand-alone laptops built around 19.10. For COVID reasons access to these was blocked during the critical months when they were scheduled for upgrading. I have tried the upgrade path on the Ubuntu site but this doesn't work any longer. The Krunner procedure does nothing and the terminal upgrade method just says that the existing OS is EOL (even Microsoft supports long term upgrading of EOL products for goodness sake, even when core support updates are long ended!).
We have over 1500 hours invested in customising the builds on these laptops and I really don't want to have to start yet another clean build if it can be avoided. I know that user configs are all supposed to be easily transferable but we have a lot of specialist applications with complex setups and I know from past experience that a fresh install always necessitates a full ground-up rebuild in practice.
Can anyone walk me through the steps needed to get around this problem?
We have over 1500 hours invested in customising the builds on these laptops and I really don't want to have to start yet another clean build if it can be avoided. I know that user configs are all supposed to be easily transferable but we have a lot of specialist applications with complex setups and I know from past experience that a fresh install always necessitates a full ground-up rebuild in practice.
Can anyone walk me through the steps needed to get around this problem?
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