I'm trying to install EOS 6.1 as a dual boot alongside Windows10 on my laptop. I've already space on my SSD for EOS; I have 40GB formatted ext4 for root, 8GB for swap, and about 140GB ext4 for home.

I used the custom install option, and set the root, swap, and home on the respective partitions (sda7, sda8, sda9). Looks like my sda2 is where the efi system partition is; it was initially 256MB, I expanded that to ~540MB before starting the installation (it is flagged as esp and boot on gparted). Since there was no option to "use" this partition as efi/esp, I didn't touch it, thinking EOS would detect it automatically. However, I'm running in to this error:

INFO: starting configuring bootloader step  
INFO: /dev/sda: installing bootloader for Bios  
INFO: running "chroot" "/tmp/distinst. oGEQDhAu7C3P"  
"grub-install" "--recheck" "--target=1386-pc" "/dev/sda"  
WARN: Installing for 1386-pc platform.  
WARN: grub-install: warning: this GPT partition label contains no BIOS Boot Partition; embedding won't be
WARN: grub-install: warning: Embedding is not possible. GRUB can only be installed in this setup by using blocklists. However, blocklists are UNRELIABLE and their use is discouraged..  
WARN: grub-install: error: will not proceed with blocklists.  
ERROR: configuring bootloader error: command failed with exit status; exit status: 1  
ERROR: errored while installing system: command failed with exit status: exit status: 1  
INFO: Install error: command failed with exit status: exit status: 1  

I'm not sure what I'm doing wrong. I've disabled secure boot and enabled legacy boot so that I can boot from the usb. Win10 continues to load fine. My Win10 partition is sda3, and sda4 through sda6 are system recovery partitions; didn't touch them. My system is a Intel Core i5, with a 16GB ram, and 512GB SSD.

Any help much appreciated! I'm not a very tech-savvy user. Thank you.


1 Answer 1


For future reference, two things helped: one, formatting the usb with gpt (rufus was defaulting to mbr); two, using a different usb drive.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.