How to solve this boot error message?
I'm on debian 11, this error doesn't show up every time, but once it appear I need more that one reboot and it will fix automatically without doing nothing, don't know the reason why (just read that can be kernel dependent). What I want to avoid is that maybe it's just a warning of somethink that will cause a pc break in future (maybe hardware is starting working bad?) Do you have any sugggestion? Thanks
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ok, I'll backup all data first. How can I remove old kernel without enter in grub menu (since usually boot works well) and select the oldone as default? Thanks