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I recently started using Linux Ubuntu (18.04.1). After recent update I restarted my laptop to switch for Windows. The next day when I tried to launch Ubuntu, instead regular purple dual boot menu I got this:

Unexpected return from initial read: Volume Corrupt, buffersize 1000
Failed to load image \EFI\ubuntu\grubx64.efi: Volume Corrupt
start_image() returned Volume Corrupt
System BootOrder not found.             
Initializing defaults
Failed to open \EFI\ubuntu\grubx64.efi\ - Volume Corrupt
Failed to load image \EFI\ubuntu\grubx64.efi: Volume Corrupt
start_image() returned Volume Corrupt
StartImage failed: 10

And no button works. The main reason I ran here to start this thread is because I can not access Ubuntu recovery mode by any possible way. I know this part: Failed to open \EFI\ubuntu\grubx64.efi\ maybe related to various reasons so it is hard for me to find precise solution. Please, could anyone provide some newbie-friendly quick guide how to solve this issue... Provided there is one that does no include reinstalling OS.

WinEunuuchs2Unix
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Alexandros
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1 Answers1

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You'll probably need to run from an install media, do a chroot, reinstall grub. However, if your EFI partition is not corrupted (you have a dual boot, right?), then maybe running efibootmgr will be enough.

Your grub-install will look something like this (don't copy):

grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=Ubuntu

If the EFI entry is wrong (the "BOOT" part in the path looks like windows' efi boot), but the files are there, then you can create a new entry in your bios/setup/efi manager (choose desired name, select device, navigate to the right file). If you want to do it from linux - use efibootmgr, something like (don't copy):

efibootmgr -c -d /dev/sdX -part NUM_OF_YOUR_ROOT_PARTITION -l /EFI/ubuntu/grubx64.efi -L Ubuntu

If your efi partition got corrupted - you'll have to recreate (create partition and format with FAT (e.g. mkfs.msdos)). Then you'd probably need to install the other os' boot manager and then ubuntu's.

And when done - you may create a backup of your partition table (with sgdisk).

tsrcknr
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