can not reinstall grub loader its broked on this laptop

[Lars Martin Hambro]

sudo update-grub
/usr/sbin/grub-probe: error: failed to get canonical path of `/cow'

sudo fdisk -l
Disk /dev/loop0: 2,06 GiB, 2213470208 bytes, 4323184 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/loop1: 55,45 MiB, 58142720 bytes, 113560 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/loop2: 218,99 MiB, 229629952 bytes, 448496 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/loop3: 64,77 MiB, 67915776 bytes, 132648 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/loop4: 51,04 MiB, 53522432 bytes, 104536 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/loop5: 32,27 MiB, 33841152 bytes, 66096 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/sda: 465,76 GiB, 500107862016 bytes, 976773168 sectors
Disk model: Samsung SSD 840
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0xef7903ca

Device Boot Start End Sectors Size Id Type
/dev/sda1 2048 718847 716800 350M 7 HPFS/NTFS/exFAT
/dev/sda2 718848 893703154 892984307 425,8G 7 HPFS/NTFS/exFAT
/dev/sda3 893704192 894849023 1144832 559M 27 Hidden NTFS WinRE
/dev/sda4 894851070 976771071 81920002 39,1G 5 Extended
/dev/sda5 894851072 895899647 1048576 512M b W95 FAT32
/dev/sda6 * 895901696 896950271 1048576 512M ef EFI (FAT-12/16/32)
/dev/sda7 896952320 976771071 79818752 38,1G 83 Linux

Disk /dev/sdb: 57,81 GiB, 62075699200 bytes, 121241600 sectors
Disk model: Flash Disk
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x1f9f5781

Device Boot Start End Sectors Size Id Type
/dev/sdb1 * 32 121241599 121241568 57,8G c W95 FAT32 (LBA)
ubuntu@ubuntu:~$ sudo grub-install /dev/sda6
Installing for x86_64-efi platform.
grub-install: error: cannot find EFI directory.
ubuntu@ubuntu:~$ ubuntu-bug grub2
ubuntu@ubuntu:~$ sudo blkid
/dev/sda1: LABEL="Reservert av systemet" BLOCK_SIZE="512" UUID="8254056454055C73" TYPE="ntfs" PARTUUID="ef7903ca-01"
/dev/sda2: BLOCK_SIZE="512" UUID="EE46073F46070853" TYPE="ntfs" PARTUUID="ef7903ca-02"
/dev/sda3: BLOCK_SIZE="512" UUID="86F2F854F2F84A47" TYPE="ntfs" PARTUUID="ef7903ca-03"
/dev/sda5: UUID="6DED-C152" BLOCK_SIZE="512" TYPE="vfat" PARTUUID="ef7903ca-05"
/dev/sda6: UUID="FB6E-4D34" BLOCK_SIZE="512" TYPE="vfat" PARTUUID="ef7903ca-06"
/dev/sda7: UUID="ba06bde7-a8af-4acf-8956-f29ec54283f2" BLOCK_SIZE="4096" TYPE="ext4" PARTUUID="ef7903ca-07"
/dev/sdb1: LABEL="UUI" UUID="1AEC-2F52" BLOCK_SIZE="512" TYPE="vfat" PARTUUID="1f9f5781-01"
/dev/loop0: TYPE="squashfs"
/dev/loop1: TYPE="squashfs"
/dev/loop2: TYPE="squashfs"
/dev/loop3: TYPE="squashfs"
/dev/loop4: TYPE="squashfs"
/dev/loop5: TYPE="squashfs"

ProblemType: Bug
DistroRelease: Ubuntu 21.04
Package: grub2-common 2.04-1ubuntu45
ProcVersionSignature: Ubuntu 5.11.0-16.17-generic 5.11.12
Uname: Linux 5.11.0-16-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu65
Architecture: amd64
CasperMD5CheckResult: pass
CasperVersion: 1.461
CurrentDesktop: ubuntu:GNOME
Date: Wed May 12 08:20:05 2021
LiveMediaBuild: Ubuntu 21.04 "Hirsute Hippo" - Release amd64 (20210420)
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=nb_NO.UTF-8
 SHELL=/bin/bash
SourcePackage: grub2
UpgradeStatus: No upgrade log present (probably fresh install)

[Lars Martin Hambro (lars-martin4)]

its also issue with uefi firmware missing fxsetup or other? sudo apt-get upgrade did not works on usb memory stick?

[Lars Martin Hambro (lars-martin4)]

https://ubuntu.com/tutorials/create-a-usb-stick-on-windows#3-usb-selection

So it some issue with program to make menory stick? or its read only if some fail when make its its impossible to fix without reinstall again? Or its possible to fix?

[Lars Martin Hambro (lars-martin4)]

Because i did not get any Check for failed or checkdisk option before start, so i mean its was before 21.04?