网上搜了下，可能是硬盘的逻辑错误，我也看不懂，等个硬盘专家回答一下
平时还是得备份重要数据，比如密钥，配置文件，代码等等
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https://superuser.com/questions/1671683/what-causes-a-filesystem-to-get-corruptedWhat causes a filesystem to get corrupted?
I just went through the following: When rebooting my Ubuntu PC, I got a message that welcomed me to emergency mode. Following the instructions from another stackoverflow post, I ended up running fsck.ext4 on my root partition from a live USB. This proposed some fixes which I accepted, and since then things have been looking fine again.
However, I wonder what this whole ordeal means. I'm assuming it's not normal for things to just break, is it? Does this mean anything about my SSD drive possibly getting old and unstable? Is it something else that I can do anything about? Or is this just something that one has to go through from time to time? I haven't done anything to my system that I'm aware of that can trigger this. I install updates using apt dist-upgrade and I install new programs via apt or snap from time to time and that's about it.
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there can be all kinds of causes, including random cosmic rays or the media producing an alpha particle, that happens to impact the value of a critical bit. generally speaking file system corruption is caused by power loss during a write operation, or in a case where there are cached writes that haven't yet been written to disk. FS checking tools like fsck attempt to reconcile inconsistencies between the file system metadata and the actual contents of the disk, and while far from perfect, can help you when FS metadata has become damaged. can't do much for cached or incomplete writes though.
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https://en.wikipedia.org/wiki/Soft_error
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