Copying grubx64.efi fails No space left on device.

[Rob Frohne]

I tried to install ubuntu 21.04 beta, erasing the disk and starting from scratch. I would not boot, just kept waiting for a network boot when it should have been using the internal SSD. So I went and put 500GB for / and 12GB for swap, and 10MB for the BIOS Boot partition and got this error. I guess I'll try again with a bigger BIOS boot partition, since this seems to be where grub stows its stuff.

ProblemType: Bug
DistroRelease: Ubuntu 21.04
Package: ubiquity 21.04.13
ProcVersionSignature: Ubuntu 5.11.0-13.14-generic 5.11.7
Uname: Linux 5.11.0-13-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu61
Architecture: amd64
CasperMD5CheckResult: pass
CasperVersion: 1.461
CurrentDesktop: ubuntu:GNOME
Date: Fri Apr 9 13:51:13 2021
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed maybe-ubiquity quiet splash ---
LiveMediaBuild: Ubuntu 21.04 "Hirsute Hippo" - Beta amd64 (20210331.1)
ProcEnviron:
 LANGUAGE=en_US.UTF-8
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 LC_NUMERIC=C.UTF-8
RebootRequiredPkgs:
 linux-image-5.11.0-13-generic
 linux-base
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)

[Sebastien Bacher (seb128)]

Thank you for the report, the error is

Apr 9 20:36:03 ubuntu grub-installer: info: Running chroot /target grub-install --force --target x86_64-efi "/dev/sda"
Apr 9 20:36:03 ubuntu grub-installer: Installing for x86_64-efi platform.
Apr 9 20:36:14 ubuntu grub-installer: grub-install: error: cannot copy `/usr/lib/grub/x86_64-efi-signed/grubx64.efi.signed' to `/boot/efi/EFI/ubuntu/grubx64.efi': No space left on device.

It seems the EFI partition hasn't the space needed