Attempting UEFI boot

Questions about Grub, the liveCD and the installer
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Attempting UEFI boot

Post by eightwt » Fri Jun 01, 2018 2:10 pm

I have an Acer Aspire v3 112p laptop with an SSD drive installed. I initially installed Mint on this drive in Legacy mode. Then I discovered that unless I boot using UEFI I would not get the SD slot to wake up after suspend. PITA! So I have gone through the process of converting, in place, the boot system to UEFI. I've been fairly successful except that on reboot it drops into the grub rescue > prompt and I have to manually re-define prefix from (hd0,gpt3).
# prefix=(hd0,gpt1)/boot/grub
now I can
# insmod normal
and it finds normal.mod (don't really know what that does). Then it drops into the grub > prompt
and I can do
# normal
and it boots right up.

So who told the system that the prefix is on (hd0,gpt3) and how do I change it permanently??? I looked through as many forums as I could find, re-read all the relevant tutorials, etc. and found no answers. There MUST be a configuration file somewhere to fix this.

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Re: Attempting UEFI boot

Post by frankt » Sun Jun 24, 2018 5:01 pm

Did you try to update grub after it booted up?

Code: Select all

sudo update-grub

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