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I have a Dell Latitude with which I messed around for a while, installing several OS (Windows and Ubuntu versions), also with multiboot options. When I installed an OS - I can't remember which one - I started getting a Partition format invalid!
error at each boot. It is not a real problem: if I hit Enter
it boots without problems. However, it's bothering: is there a way to fix that?
I can risk to lose data in my drive - I'm going to reinstall Ubuntu anyway - so any solution would be good.
If you install Ubuntu using "use all disk space" it should fix that automatically – davidbaumann – 2019-11-02T10:05:32.307