I recently upgraded Ubuntu on a multi-boot system. I'm trying a few different linux distro's to try and decide witch is maybe better for what. Anyway the issue was that Ubuntu upgrade just ignored my current config and destroyed grub. The problem was that I am not that experienced so I waisted over 4 hours of my day restoring some semblance of the grub2 that I had to get things up and running again. While this was a learning opportunity!! I was wondering if I did something wrong when I did the upgrade or is there a way to avoid this problem next time? This is important to me because I have no intention of going back to Microsoft again for anything. Thanks in advance.
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09:50
Upgrading to latest Ubuntu 2026
Upgrading to latest Ubuntu 2026
Top Answer/Comment:
Top Answer/Comment:
Comment: You mention a multi-boot system, which can be more complex. A machine's boot is handled by (1) it's firmware & firmware settings (settings can be called BIOS settings), and there are multiple standards that can be followed (uEFI the most common these days). According to spec only one drive is active (firmware & settings controls which) and it's boot sector (MBR) or ESP (uEFI System Partition) is used.. By standard a drive can only have one MBR/ESP (if there are many boot is undefined as shouldn't be allowed to happen!).. Was your Ubuntu controlling boot? or another OS etc..
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