submitted 2 months ago by ArcaneSlime@lemmy.dbzer0.com to c/linux4noobs@programming.dev

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Is there a way to log all the stuff on start up to a text file so I can read it? It goes by way too fast! Mine shows some blue warnings but I can't read them.

To be clear I mean the part that explains what is starting or failing, like if you hit [ESC] during start up or don't have plymouth, not the plymouth splash screens.

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[-] Ephera@lemmy.ml 15 points 2 months ago

If you open up a terminal and run the dmesg command, it should show up.

If you'd like it in a file, you can pipe it via standard shell features like so:

dmesg > boot.log

[-] ArcaneSlime@lemmy.dbzer0.com 3 points 2 months ago

Thanks! Looks like this has even more info in it than the start up does for some reason, too.

[-] Ephera@lemmy.ml 4 points 2 months ago

Ah yeah, it's all kernel messages since the start of the boot, so it won't stop at the end of the boot process, but I also imagine the boot screen (Plymouth) only shows warning and error messages.

You can filter it to only show warnings and worse with:

dmesg --level=warn+

Here's some more infos on that: https://unix.stackexchange.com/questions/390141/how-to-filter-the-dmesg-log-to-see-only-the-errors

[-] ArcaneSlime@lemmy.dbzer0.com 2 points 2 months ago

Thanks!

this post was submitted on 10 Aug 2024

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