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Cannot update to 18.04 on DualBoot - "EFI System Partition (ESP) not usable"

I am trying to upgrade to 18.04 using sudo do-release-upgrade -d, but it exits the installation with the message:

Calculating the changes

EFI System Partition (ESP) not usable 

Your EFI System Partition (ESP) is not mounted at /boot/efi. 
Please ensure that it is properly configured and try again. 

Restoring original system state

Aborting

I have Windows on this machine as dual boot. Fast boot is disabled on Windows 10.

I have tried to mount it in GParted but the option is disabled…

/dev/sda1 info which is ESP

What should I do to be able to move forward?

Ask Ubuntu Asked by Marek Urbanowicz on November 21, 2021

1 Answers

One Answer

You have to mount your ESP. This should work with:

sudo mount /boot/efi 

If you get an error message like

mount: can't find /boot/efi in /etc/fstab

you have to add a line to your /etc/fstab e.g.

UUID=XXXX-XXXX  /boot/efi       vfat    umask=0077      0       1

replace the XXXX-XXXX with the UID of your ESP (e.g. from the output of blkid /dev/sdxX or from gparted (92E8-1BEE in your case))

Answered by mbeyss on November 21, 2021

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