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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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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
I wouldn't be quick to assume that this means a failing disk. There would probably be more sporadic issues if this were the case.
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
ok, thank you very much for detailed explanation, yes I remember that I had removed timeout from grub in the past, I will follow your procedure and select previous kernel. Another question, once I'v selected the older kernel did you think that removing (it's fine using apt?) and resinstall newest kernel will fix the issue or I'v to keep the older kernel? In case I'v to keep the older kernel how can I avoid that it will be overwritten once I update the os?
ok, will try Many Thanks!!