Command '/usr/bin/grub-install' returned non-zero exit status 1.
Installing for i386-pc platform.
/usr/bin/grub-install: error: install device isn't specified.
Traceback:
File "/usr/lib/calamares/modules/fstab/main.py", line 397, in run
return generator.run()
File "/usr/lib/calamares/modules/fstab/main.py", line 118, in run
self.generate_fstab()
File "/usr/lib/calamares/modules/fstab/main.py", line 196, in generate_fstab
libcalamares.utils.host_env_process_output(["/usr/bin/grub-install", "--efi-directory", efi_path, "--boot-directory", boot_path])
File "<string>", line 5, in <module>
Traceback: