Missing both Windows Boot Manager and Zorin OS on GRUB after Boot Repair

My Dell Inspiron 15 ran into a problem when Windows shows a Recovery screen said that is something went wrong. So I purposely removed both Windows Boot Manager and Zorin OS from a boot settings,


ran a boot repair from live USB, and the result only UEFI Firmware Settings is shown on GRUB boot menu and not including both Windows Boot Manager and Zorin OS.

My files on both OS was in there! If I reinstalling it, It will lose all of my useful files. What should I do?

When You set ''Zorin OS'' and first Position on ''Boot Sequence'' does it work?

As it is now booting to a Zorin-themed grub screen, the bootloader exists but is missing configuration.

You can boot Super Grub2 Disk from USB to list all bootable partitions and OS on your PC, get into your actual Zorin install instead of the Zorin live USB:

(either download the first option under USB Bootable Images and write directly to USB, or the first option under CD-ROM Bootable Images to add to a Ventoy stick if you have that set up)

Once back in Zorin, open a terminal and run:

sudo update-grub

This should add Zorin and Windows back into your grub configuration.

If that still doesn't work, go back into your Zorin install via SG2D and check /etc/default/grub to ensure that GRUB_DISABLE_OS_PROBER=false then run sudo update-grub again.

It sounds to me as if it was your removing the two boot options that caused the issue, not the boot repair. I don't understand why you removed them but that is not relevant. I don't think you actually removed the boot loaders themselves, just stopped BIOS from booting from them. Reinstalling should not be necessary.

I assume you cannot get back to the screen in your first screenshot to add them back. Is that a windows screen?

You should be able to do something similar in your BIOS itself. You might get to it by clicking or hitting enter on the one remaining choice on the grub screen, or by repeatedly pressing the appropriate key (esc?) after turning power on.

Not at all. It is still the same.

Do you mean with that:

You have deleted the Boot Partitions or only set them down in the Boot Priority?

1 Like

Boot Priority

Hmm ... Okay, start Zorin from the Bootstick in Live Mode. Look there for ''GParted'' and start it and make a Picture of the Partitions and post it here please.


Here are my partitions.

1 Like

Okay, the Partitions look good. The EFI-Partition is still there, too. Please try again Boot Repair from the Live Mode.

Just did a boot repair. Here is a report:

boot-repair-4ppa2081-zorin1 [20260830_1249]

============================= Boot Repair Summary ==============================

Default settings: ______________________________________________________________

The default repair of the Boot-Repair utility would reinstall the grub-efi of
nvme0n1p4,
using the following options: nvme0n1p1/boot/efi
Additional repair would be performed: unhide-bootmenu-10s use-standard-efi-file restore-efi-backups

Final advice in case of suggested repair: ______________________________________

Please do not forget to make your UEFI firmware boot on the Zorin OS 18.1 (18) entry (nvme0n1p1/efi//grub.efi (**** will be updated in the final message) file) !
If your computer reboots directly into Windows, try to change the boot order in your UEFI firmware.
If your UEFI firmware does not allow to change the boot order, change the default boot entry of the Windows bootloader.
For example you can boot into Windows, then type the following command in an admin command prompt:
bcdedit /set {bootmgr} path \EFI*\grub*.efi (**** will be updated in the final message)

User settings: _________________________________________________________________

modprobe: FATAL: Module efivars not found in directory /lib/modules/6.17.0-20-generic
The settings chosen by the user will reinstall the grub-efi of
nvme0n1p4,
using the following options: nvme0n1p1/boot/efi
Additional repair will be performed: unhide-bootmenu-10s win-legacy-basic-fix use-standard-efi-file restore-efi-backups

rm /mnt/boot-sav/nvme0n1p1/efi/Microsoft/Boot/bootmgfw.efi
mv /mnt/boot-sav/nvme0n1p1/efi/Microsoft/Boot/bkpbootmgfw.efi /mnt/boot-sav/nvme0n1p1/efi/Microsoft/Boot/bootmgfw.efi
rm /mnt/boot-sav/nvme0n1p1/efi/Microsoft/Boot/bootx64.efi /mnt/boot-sav/nvme0n1p1/efi/Microsoft/Boot/bootx64.efi.grb
rm /mnt/boot-sav/nvme0n1p1/efi/Boot/bootx64.efi
mv /mnt/boot-sav/nvme0n1p1/efi/Boot/bkpbootx64.efi /mnt/boot-sav/nvme0n1p1/efi/Boot/bootx64.efi
rm /mnt/boot-sav/sda3/efi/Microsoft/Boot/bootmgfw.efi /mnt/boot-sav/sda3/efi/Microsoft/Boot/bootmgfw.efi.grb
rm /mnt/boot-sav/sda3/efi/Microsoft/Boot/bootx64.efi /mnt/boot-sav/sda3/efi/Microsoft/Boot/bootx64.efi.grb
rm /mnt/boot-sav/sda3/efi/Boot/bootx64.efi /mnt/boot-sav/sda3/efi/Boot/bootx64.efi.grb
Quantity of real Windows: 1
Mount /dev/nvme0n1p1 on /mnt/boot-sav/nvme0n1p4/boot/efi

=================== Reinstall the grub-efi of /dev/nvme0n1p4 ===================

chroot /mnt/boot-sav/nvme0n1p4 grub-install --version
grub-install (GRUB) 2.12-1ubuntu7.3+zorin2
modprobe: FATAL: Module efivars not found in directory /lib/modules/6.17.0-20-generic
chroot /mnt/boot-sav/nvme0n1p4 modprobe efivars

chroot /mnt/boot-sav/nvme0n1p4 efibootmgr -v (filtered) before grub install
EFI variables are not supported on this system.
error trace:

chroot /mnt/boot-sav/nvme0n1p4 uname -r
6.17.0-20-generic

chroot /mnt/boot-sav/nvme0n1p4 grub-install --efi-directory=/boot/efi --target=x86_64-efi
Installing for x86_64-efi platform.
grub-install: warning: EFI variables cannot be set on this system.
grub-install: warning: You will have to complete the GRUB setup manually.
Installation finished. No error reported.
df /dev/nvme0n1p1
mv /mnt/boot-sav/nvme0n1p4/boot/efi/EFI/Boot/bootx64.efi /mnt/boot-sav/nvme0n1p4/boot/efi/EFI/Boot/bkpbootx64.efi
cp /mnt/boot-sav/nvme0n1p4/boot/efi/efi/ubuntu/grubx64.efi /mnt/boot-sav/nvme0n1p4/boot/efi/EFI/Boot/bootx64.efi
df /dev/sda3
touch /mnt/boot-sav/sda3/EFI/Boot/bootx64.efi.grb
cp /mnt/boot-sav/nvme0n1p4/boot/efi/efi/ubuntu/grubx64.efi /mnt/boot-sav/sda3/EFI/Boot/bootx64.efi

chroot /mnt/boot-sav/nvme0n1p4 grub-install --efi-directory=/boot/efi --target=x86_64-efi
Installing for x86_64-efi platform.
grub-install: warning: EFI variables cannot be set on this system.
grub-install: warning: You will have to complete the GRUB setup manually.
Installation finished. No error reported.

chroot /mnt/boot-sav/nvme0n1p4 efibootmgr -v (filtered) after grub install
EFI variables are not supported on this system.
error trace:

Warning: NVram is locked (Zorin not found in efibootmgr).

chroot /mnt/boot-sav/nvme0n1p4 update-grub
Sourcing file `/etc/default/grub'
Found theme: /usr/share/grub/themes/zorin/theme.txt
/usr/bin/python3: error while loading shared libraries: libexpat.so.1: cannot open shared object file: No such file or directory
/usr/bin/python3: error while loading shared libraries: libexpat.so.1: cannot open shared object file: No such file or directory
/usr/bin/python3: error while loading shared libraries: libexpat.so.1: cannot open shared object file: No such file or directory
logger: error while loading shared libraries: liblz4.so.1: cannot open shared object file: No such file or directory
logger: error while loading shared libraries: liblz4.so.1: cannot open shared object file: No such file or directory
logger: error while loading shared libraries: liblz4.so.1: cannot open shared object file: No such file or directory
logger: error while loading shared libraries: liblz4.so.1: cannot open shared object file: No such file or directory
logger: error while loading shared libraries: liblz4.so.1: cannot open shared object file: No such file or directory
logger: error while loading shared libraries: liblz4.so.1: cannot open shared object file: No such file or directory
logger: error while loading shared libraries: liblz4.so.1: cannot open shared object file: No such file or directory
logger: error while loading shared libraries: liblz4.so.1: cannot open shared object file: No such file or directory
logger: error while loading shared libraries: liblz4.so.1: cannot open shared object file: No such file or directory
logger: error while loading shared libraries: liblz4.so.1: cannot open shared object file: No such file or directory
logger: error while loading shared libraries: liblz4.so.1: cannot open shared object file: No such file or directory
logger: error while loading shared libraries: liblz4.so.1: cannot open shared object file: No such file or directory
logger: error while loading shared libraries: liblz4.so.1: cannot open shared object file: No such file or directory
logger: error while loading shared libraries: liblz4.so.1: cannot open shared object file: No such file or directory
logger: error while loading shared libraries: liblz4.so.1: cannot open shared object file: No such file or directory
logger: error while loading shared libraries: liblz4.so.1: cannot open shared object file: No such file or directory
Adding boot menu entry for UEFI Firmware Settings ...

Unhide GRUB boot menu in nvme0n1p4/boot/grub/grub.cfg

Boot successfully repaired.

Locked-NVram detected. Please do not forget to make your UEFI firmware boot on the Zorin OS 18.1 (18) entry (nvme0n1p1/efi/ubuntu/grubx64.efi file) !

============================ Boot Info After Repair ============================

=> No boot loader is installed in the MBR of /dev/nvme0n1.
=> No boot loader is installed in the MBR of /dev/sda.

nvme0n1p1: _____________________________________________________________________

File system:       vfat
Boot sector type:  FAT32
Boot sector info:  No errors found in the Boot Parameter Block.
Operating System:  
Boot files:        /efi/Boot/bkpbootx64.efi /efi/Boot/bootx64.efi 
                   /efi/Boot/fbx64.efi /efi/Boot/grubx64.efi 
                   /efi/Boot/mmx64.efi /efi/ubuntu/grubx64.efi 
                   /efi/ubuntu/mmx64.efi /efi/ubuntu/shimx64.efi 
                   /efi/ubuntu/grub.cfg /efi/Microsoft/Boot/bootmgfw.efi 
                   /efi/Microsoft/Boot/bootmgr.efi 
                   /efi/Microsoft/Boot/SecureBootRecovery.efi

nvme0n1p2: _____________________________________________________________________

File system:       ntfs
Boot sector type:  NTFS
Boot sector info:  No errors found in the Boot Parameter Block.
Operating System:  Windows 8 or 10
Boot files:        /Windows/System32/winload.exe

nvme0n1p3: _____________________________________________________________________

File system:       ntfs
Boot sector type:  NTFS
Boot sector info:  No errors found in the Boot Parameter Block.
Operating System:  
Boot files:        

nvme0n1p4: _____________________________________________________________________

File system:       ext4
Boot sector type:  -
Boot sector info: 
Operating System:  Zorin OS 18.1
Boot files:        /boot/grub/grub.cfg /etc/fstab /etc/default/grub

sda1: __________________________________________________________________________

File system:       
Boot sector type:  -
Boot sector info: 

sda2: __________________________________________________________________________

File system:       ntfs
Boot sector type:  NTFS
Boot sector info:  No errors found in the Boot Parameter Block.
Operating System:  
Boot files:        

sda3: __________________________________________________________________________

File system:       vfat
Boot sector type:  FAT32
Boot sector info:  No errors found in the Boot Parameter Block.
Operating System:  
Boot files:        /efi/Boot/bootx64.efi /efi/Boot/grubx64.efi 
                   /efi/ubuntu/grubx64.efi /efi/ubuntu/shimx64.efi

sda4: __________________________________________________________________________

File system:       exfat
Boot sector type:  Unknown
Boot sector info: 
Operating System:  
Boot files:        

sdb: ___________________________________________________________________________

File system:       iso9660
Boot sector type:  Unknown
Boot sector info: 
Mounting failed:   mount: /mnt/BootInfo/FD/sdb: /dev/sdb already mounted or mount point busy.
   dmesg(1) may have more information after failed mount system call.

================================ 2 OS detected =================================

OS#1 (linux): Zorin OS 18.1 (18) on nvme0n1p4
OS#2 (windows): Windows 8 or 10 on nvme0n1p2

================================ Host/Hardware =================================

CPU architecture: 64-bit
Video: Tiger Lake-LP GT2 [UHD Graphics G4] from Intel Corporation
Live-session OS is Zorin 64-bit (Zorin OS 18.1, noble, x86_64)

===================================== UEFI =====================================

BIOS/UEFI firmware: 1.47.0(1.47) from Dell Inc.
The firmware is EFI-compatible, and is set in EFI-mode for this live-session.
SecureBoot disabled (confirmed by mokutil).
BootCurrent: 0004
Timeout: 2 seconds
BootOrder: 0004,0005,0002,0001,0003,0000,0000
Boot0000* UEFI HTTPs Boot PciRoot(0x0)/Pci(0x1f,0x6)/MAC(000000000000,0)/IPv4(0.0.0.00.0.0.0,0,0)/Uri(){auto_created_boot_option}
Boot0001* UEFI Lexar SSD NM620 256GB ML74322005778P1012 1 HD(1,GPT,dc8c1d1f-5759-4a17-9241-490347834d6c,0x800,0x32000)/File(\EFI\Boot\BootX64.efi){auto_created_boot_option}
Boot0002* Zorin OS HD(1,GPT,dc8c1d1f-5759-4a17-9241-490347834d6c,0x800,0x32000)/File(\EFI\ubuntu\shimx64.efi)
Boot0003* UEFI ST1000LM035-1RK172 WKPR5M0A HD(3,GPT,3c2029cc-40f9-4101-966b-9a496071b741,0x48959000,0x100800)/File(\EFI\Boot\BootX64.efi){auto_created_boot_option}
Boot0004* UEFI Kingston DataTraveler 3.0 60A44C413985BDB1797535EA PciRoot(0x0)/Pci(0x14,0x0)/USB(13,0)/HD(2,MBR,0x1967c9d6,0x25c,0x2800)/File(\EFI\Boot\BootX64.efi){auto_created_boot_option}
Boot0005* UEFI Kingston DataTraveler 3.0 60A44C413985BDB1797535EA 2 PciRoot(0x0)/Pci(0x14,0x0)/USB(13,0)/CDROM(1,0x25c,0xa000)/File(\EFI\Boot\BootX64.efi){auto_created_boot_option}

07e25dcaf57c776875f78fa36827c58e nvme0n1p1/Boot/bkpbootx64.efi
07e25dcaf57c776875f78fa36827c58e nvme0n1p1/Boot/bootx64.efi
39bc76ff6662f4fbe9aa116e4c997b41 nvme0n1p1/Boot/fbx64.efi
94c7467f956700d44c5b4dcd3967535c nvme0n1p1/Boot/grubx64.efi
4ba5a5aad43c197e9fb58b76b404d287 nvme0n1p1/Boot/mmx64.efi
94c7467f956700d44c5b4dcd3967535c nvme0n1p1/ubuntu/grubx64.efi
4ba5a5aad43c197e9fb58b76b404d287 nvme0n1p1/ubuntu/mmx64.efi
07e25dcaf57c776875f78fa36827c58e nvme0n1p1/ubuntu/shimx64.efi
2df4fc3f6c11bdd5ca0badd5d7ce323d nvme0n1p1/Microsoft/Boot/bootmgfw.efi
9e166bcce56129ace50900d2fbed1289 nvme0n1p1/Microsoft/Boot/bootmgr.efi
3abba0a10f2a03f82557d76721b94d1f nvme0n1p1/Microsoft/Boot/SecureBootRecovery.efi
94c7467f956700d44c5b4dcd3967535c sda3/Boot/bootx64.efi (is grub)
94c7467f956700d44c5b4dcd3967535c sda3/Boot/grubx64.efi
94c7467f956700d44c5b4dcd3967535c sda3/ubuntu/grubx64.efi
07e25dcaf57c776875f78fa36827c58e sda3/ubuntu/shimx64.efi

============================= Drive/Partition Info =============================

Disks info: ____________________________________________________________________

nvme0n1 : is-GPT, no-BIOSboot, has---ESP, not-usb, not-mmc, has-os, has-win, 2048 sectors * 512 bytes
sda : is-GPT, no-BIOSboot, has---ESP, not-usb, not-mmc, no-os, no-wind, 2048 sectors * 512 bytes

Partitions info (1/3): _________________________________________________________

nvme0n1p1 : no-os, 64, nopakmgr, no-docgrub, nogrub, nogrubinstall, no-grubenv, noupdategrub, not-far
nvme0n1p2 : is-os, 64, nopakmgr, no-docgrub, nogrub, nogrubinstall, no-grubenv, noupdategrub, end-after-100GB
nvme0n1p3 : no-os, 64, nopakmgr, no-docgrub, nogrub, nogrubinstall, no-grubenv, noupdategrub, end-after-100GB
nvme0n1p4 : is-os, 64, apt-get, signed grub-pc grub-efi , grub2, grub-install, grubenv-ok, update-grub, end-after-100GB
sda2 : no-os, 64, nopakmgr, no-docgrub, nogrub, nogrubinstall, no-grubenv, noupdategrub, end-after-100GB
sda3 : no-os, 64, nopakmgr, no-docgrub, nogrub, nogrubinstall, no-grubenv, noupdategrub, end-after-100GB
sda4 : no-os, 64, nopakmgr, no-docgrub, nogrub, nogrubinstall, no-grubenv, noupdategrub, end-after-100GB

Partitions info (2/3): _________________________________________________________

nvme0n1p1 : is---ESP, part-has-no-fstab, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot, vfat
nvme0n1p2 : isnotESP, part-has-no-fstab, no-nt, haswinload, no-recov-nor-hid, no-bmgr, notwinboot, ntfs
nvme0n1p3 : isnotESP, part-has-no-fstab, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot, ntfs
nvme0n1p4 : isnotESP, fstab-has-goodEFI, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot, ext4
sda2 : isnotESP, part-has-no-fstab, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot, ntfs
sda3 : is---ESP, part-has-no-fstab, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot, vfat
sda4 : isnotESP, part-has-no-fstab, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot, exfat

Partitions info (3/3): _________________________________________________________

nvme0n1p1 : not--sepboot, no---boot, part-has-no-fstab, not-sep-usr, no---usr, part-has-no-fstab, no--grub.d, nvme0n1
nvme0n1p2 : not--sepboot, no---boot, part-has-no-fstab, not-sep-usr, no---usr, part-has-no-fstab, no--grub.d, nvme0n1
nvme0n1p3 : not--sepboot, no---boot, part-has-no-fstab, not-sep-usr, no---usr, part-has-no-fstab, no--grub.d, nvme0n1
nvme0n1p4 : not--sepboot, with-boot, fstab-without-boot, not-sep-usr, with--usr, fstab-without-usr, std-grub.d, nvme0n1
sda2 : not--sepboot, no---boot, part-has-no-fstab, not-sep-usr, no---usr, part-has-no-fstab, no--grub.d, sda
sda3 : not--sepboot, no---boot, part-has-no-fstab, not-sep-usr, no---usr, part-has-no-fstab, no--grub.d, sda
sda4 : maybesepboot, no---boot, part-has-no-fstab, not-sep-usr, no---usr, part-has-no-fstab, no--grub.d, sda

fdisk -l (filtered): ___________________________________________________________

Disk sda: 931.51 GiB, 1000204886016 bytes, 1953525168 sectors
Disk identifier: 953225D6-7831-45B4-B4A4-10D617C5E835
Start End Sectors Size Type
sda1 2048 34815 32768 16M Microsoft reserved
sda2 34816 1217760613 1217725798 580.7G Microsoft basic data
sda3 1217761280 1218811903 1050624 513M EFI System
sda4 1218811904 1953521663 734709760 350.3G Microsoft basic data
Disk nvme0n1: 238.47 GiB, 256060514304 bytes, 500118192 sectors
Disk identifier: B4873B0D-178B-4DF6-90DE-D4C1BE10F968
Start End Sectors Size Type
nvme0n1p1 2048 206847 204800 100M EFI System
nvme0n1p2 239616 371381704 371142089 177G Microsoft basic data
nvme0n1p3 371382272 373264383 1882112 919M Microsoft basic data
nvme0n1p4 373264384 500117503 126853120 60.5G Linux filesystem
Disk sdb: 14.92 GiB, 16022241280 bytes, 31293440 sectors
Disk identifier: 0x1967c9d6
Boot Start End Sectors Size Id Type
sdb1 * 0 7634943 7634944 3.6G 0 Empty
sdb2 604 10843 10240 5M ef EFI (FAT-12/16/32)
sdb3 7634944 31293439 23658496 11.3G 83 Linux

parted -lm (filtered): _________________________________________________________

sda:1000GB:scsi:512:4096:gpt:ATA ST1000LM035-1RK1:;
1:1049kB:17.8MB:16.8MB::Microsoft reserved partition:msftres, no_automount;
2:17.8MB:623GB:623GB:ntfs:Basic data partition:msftdata, no_automount;
3:623GB:624GB:538MB:fat32:EFI System Partition:boot, esp;
4:624GB:1000GB:376GB::Basic data partition:msftdata;
sdb:16.0GB:scsi:512:512:msdos:Kingston DataTraveler 3.0:;
2:309kB:5552kB:5243kB:::esp;
3:3909MB:16.0GB:12.1GB:ext4::;
nvme0n1:256GB:nvme:512:512:gpt:Lexar SSD NM620 256GB:;
1:1049kB:106MB:105MB:fat32:EFI System Partition:boot, esp;
2:123MB:190GB:190GB:ntfs::msftdata;
3:190GB:191GB:964MB:ntfs::msftdata;
4:191GB:256GB:64.9GB:ext4::;

Free space >10MiB: ______________________________________________________________

nvme0n1: 101MiB:117MiB:16.0MiB
sdb: 5.29MiB:3728MiB:3723MiB

blkid (filtered): ______________________________________________________________

NAME FSTYPE UUID PARTUUID LABEL PARTLABEL
sda
├─sda1 4e8dae1b-e11e-419a-8649-0c83a2a36f12 Microsoft reserved partition
├─sda2 ntfs 3E72EE4E72EE0B0B 372cc1aa-7c10-11f0-8029-106fd90d6926 WINDATA Basic data partition
├─sda3 vfat A65C-11FE 3c2029cc-40f9-4101-966b-9a496071b741 EFI System Partition
└─sda4 exfat F0D5-E21E 5e366043-ad21-4264-a4aa-790bc5b12b3c ZORIN DATA Basic data partition
sdb iso9660 2026-04-14-18-19-02-00 Zorin OS 18.1 Core 64bit
├─sdb1 iso9660 2026-04-14-18-19-02-00 1967c9d6-01 Zorin OS 18.1 Core 64bit
├─sdb2 vfat 50D2-EA10 1967c9d6-02
└─sdb3 ext4 d99eec1a-fafc-4d08-b40c-ba5f1876c913 1967c9d6-03 writable
nvme0n1
├─nvme0n1p1 vfat D019-E730 dc8c1d1f-5759-4a17-9241-490347834d6c EFI System Partition
├─nvme0n1p2 ntfs 64862001861FD282 00000000-0000-0000-0000-000000000000 WIN11
├─nvme0n1p3 ntfs C88E603D8E602662 00000000-0000-0000-0000-000000000000
└─nvme0n1p4 ext4 d9313b88-6173-4ff8-aee6-6296aadfa331 883b31d9-7361-f84f-aee6-6296aadfa331 ZORIN

Mount points (filtered): _______________________________________________________

                                                           Avail Use% Mounted on

/dev/nvme0n1p1 23.4M 76% /mnt/boot-sav/nvme0n1p1
/dev/nvme0n1p2 21.1G 88% /mnt/boot-sav/nvme0n1p2
/dev/nvme0n1p3 61.5M 93% /mnt/boot-sav/nvme0n1p3
/dev/nvme0n1p4 8.7G 80% /mnt/boot-sav/nvme0n1p4
/dev/sda2 400.5G 31% /mnt/boot-sav/sda2
/dev/sda3 475.6M 7% /mnt/boot-sav/sda3
/dev/sda4 252.9G 28% /mnt/boot-sav/sda4
/dev/sdb1 0 100% /cdrom
efivarfs 114.8K 68% /sys/firmware/efi/efivars

Mount options (filtered): ______________________________________________________

/dev/nvme0n1p1 vfat rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro
/dev/nvme0n1p2 fuseblk rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096
/dev/nvme0n1p3 fuseblk rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096
/dev/nvme0n1p4 ext4 rw,relatime
/dev/sda2 fuseblk rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096
/dev/sda3 vfat rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro
/dev/sda4 exfat rw,relatime,fmask=0022,dmask=0022,iocharset=utf8,errors=remount-ro
/dev/sdb1 iso9660 ro,noatime,nojoliet,check=s,map=n,blocksize=2048,iocharset=utf8

=================== nvme0n1p1/efi/ubuntu/grub.cfg (filtered) ===================

search.fs_uuid d9313b88-6173-4ff8-aee6-6296aadfa331 root
set prefix=($root)'/boot/grub'
configfile $prefix/grub.cfg

=================== nvme0n1p4/boot/grub/grub.cfg (filtered) ====================

END /etc/grub.d/30_os-prober

UEFI Firmware Settings uefi-firmware

END /etc/grub.d/30_uefi-firmware

======================== nvme0n1p4/etc/fstab (filtered) ========================

/ was on /dev/nvme0n1p5 during installation

UUID=d9313b88-6173-4ff8-aee6-6296aadfa331 / ext4 errors=remount-ro 0 1

/boot/efi was on /dev/nvme0n1p1 during installation

UUID=D019-E730 /boot/efi vfat umask=0077 0 1
/swapfile none swap sw 0 0

==================== nvme0n1p4/etc/default/grub (filtered) =====================

GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=menu
GRUB_TIMEOUT=10
GRUB_DISTRIBUTOR=( . /etc/os-release; echo ${NAME:-Ubuntu} ) 2>/dev/null || echo Ubuntu
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""
GRUB_DISABLE_OS_PROBER=false
GRUB_THEME=/usr/share/grub/themes/zorin/theme.txt
GRUB_DISABLE_MEMTEST=true

================= nvme0n1p4: Location of files loaded by Grub ==================

       GiB - GB             File                                 Fragment(s)
        ?? = ??             boot/grub/grub.cfg                             1

232.838096619 = 250.008002560 boot/vmlinuz 3
220.658199310 = 236.929937408 boot/vmlinuz-7.0.0-29-generic 2
232.838096619 = 250.008002560 boot/vmlinuz-7.0.0-30-generic 3
220.658199310 = 236.929937408 boot/vmlinuz.old 2
229.970699310 = 246.929158144 boot/initrd.img 8
231.314449310 = 248.371998720 boot/initrd.img-7.0.0-29-generic 8
229.970699310 = 246.929158144 boot/initrd.img-7.0.0-30-generic 8
231.314449310 = 248.371998720 boot/initrd.img.old 8

=================== nvme0n1p4: ls -l /etc/grub.d/ (filtered) ===================

-rwxr-xr-x 1 root root 18123 May 17 2025 10_linux
-rwxr-xr-x 1 root root 43192 May 17 2025 10_linux_zfs
-rwxr-xr-x 1 root root 14513 May 17 2025 20_linux_xen
-rwxr-xr-x 1 root root 786 May 17 2025 25_bli
-rwxr-xr-x 1 root root 13120 May 17 2025 30_os-prober
-rwxr-xr-x 1 root root 1174 May 17 2025 30_uefi-firmware
-rwxr-xr-x 1 root root 744 Mar 12 11:19 35_fwupd
-rwxr-xr-x 1 root root 214 May 17 2025 40_custom
-rwxr-xr-x 1 root root 215 May 17 2025 41_custom

Do you see Zorin or Windows in your grub menu now?

Does it worked?

not at all.

Okay ... Let's check a different Thing. I'm not sure if this works in Live Mode, but we can try. When in Live Mode open the Terminal and type efibootmgr and post the Output here please. It gives or should give an Overview about the Boot Files in more Details.

modprobe: FATAL: Module efivars not found in directory /lib/modules/6.17.0-20-generic
grub-install: warning: EFI variables cannot be set on this system.
grub-install: warning: You will have to complete the GRUB setup manually.
Warning: NVram is locked (Zorin not found in efibootmgr).

There are some errors and warnings in there about it not being able to set EFI variables and advising you to manually configure grub, as well as locked NVram which usually indicates that the EFI partition is not writable for one reason or another. So, even though the output clearly shows it detecting Windows and Zorin, it cannot actually write their config details to your bootloader so that they show up as options.

Per my previous comment, I advise you use SG2D to boot into your actual Zorin install to run sudo update-grub there, instead of via the live ISO's boot repair tool.

You can use the live ISO to create an SG2D USB stick if you don't have another PC, though that will require you to have another USB stick lying around.

I typically recommend people use Ventoy which lets you simply copy multiple ISO and image files onto a single USB stick to boot them, instead of having to re-flash each stick every time you want to boot something different. I keep a couple of Ventoy sticks updated with various tools like SG2D, gparted, clonezilla, memtest, HBCD, etc., on top of a few Windows and linux ISOs so I'm never left stuck if my PC has a problem.

1 Like

Hmm ... the Zorin OS Option is there but the Windows Boot Manager Option is missing ...

You could in Live Mode copy Your Data from both Systems to save them and then reinstall the Systems. Would that be an Option for You or is that too much Trouble?