dpkg-reconfigure grub-pc no option to select boot device

I need to reconfigure grub to use a different install device. Other threads indicate that there will be a screen that prompts me to select a device:

However, no such screen exists. It exits after the 2nd one.

How do I select the boot device?

Screen 1
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Screen 2

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After Screen 2

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Answer

This appears to be due to a change introduced to avoid potential corrupted systems. I’ve filed a bug report about this as this just bit me during a RAID failure.

Update: The bug has been confirmed and triaged as high priority against basically all supported versions of Ubuntu.

Update #2: Fix has been released for Focal and Groovy! I’m hoping someone on the Ubuntu team is tracking Bionic.

Update #3: Fix has been released for Bionic!

Attribution
Source : Link , Question Author : Douglas Gaskell , Answer Author : Brian Turek

2 thoughts on “dpkg-reconfigure grub-pc no option to select boot device”

  1. Hi,

    I am using ubuntu 20.10, I got this problem, when I try to run with “dpkg-reconfigure grub-pc”.

    Is there any instruction on how to fix it?

    Thanks!

    Reply

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