I've had this symptom for a while and cannot find much by searching for the error message. During boot, when the grub menu usually would come up, I see error: can't find command "exec". loading initramfs loading kernel I think I got this when updating and deleting and reinstalling low level ubuntu parts like busybox, syslinux, bash. Any ideas what could be missing on my ubuntu 20.04 distro? Ordinary running of grub-install /dev/sda says good and doesn't change the symptom. ll /sys/firmware/efi ls: cannot access '/sys/firmware/efi': No such file or directory sudo gdisk -l /dev/sda [sudo] password for john: GPT fdisk (gdisk) version 1.0.5 Partition table scan: MBR: MBR only BSD: not present APM: not present GPT: not present *************************************************************** Found invalid GPT and valid MBR; converting MBR to GPT format in memory. *************************************************************** Disk /dev/sda: 500118192 sectors, 238.5 GiB Model: INTEL SSDSCKKF25 Sector size (logical/physical): 512/512 bytes Disk identifier (GUID): 2178828C-D2B9-4B38-BA80-294C83D53164 Partition table holds up to 128 entries Main partition table begins at sector 2 and ends at sector 33 First usable sector is 34, last usable sector is 500118158 Partitions will be aligned on 2048-sector boundaries Total free space is 19053 sectors (9.3 MiB) Number Start (sector) End (sector) Size Code Name 1 2048 1050623 512.0 MiB 0700 Microsoft basic data 5 1052672 475541503 226.3 GiB 8300 Linux filesystem 6 475543552 500105215 11.7 GiB 8200 Linux swap Thanks, -- John
