Hello! I'm new to the forum but I've been using Zorin for a little while, yesterday I tried installing a program to maybe have my capture card work on a windows virtual machine. I ended up messing with things I clearly shouldn't have and broke everything in the process.
I've looked around the internet and on multiple forums (including this one) for similar problems, and tried pretty much all possible solutions I've found.
I tried updating everything multiple times and I got different errors a couple times, I can probably list them if asked, but it would only be what I searched online, since I don't know how to replicate the situations themselves.
Right now I'm on a live USB, and I hope I don't have to reinstall the whole OS again 
Onto the problem itself: If I try to boot up my computer, I only see a black screen with some text and >grub, it lets me type in commands and I can press tab for a list of commands. If I type in "exit" my PC tries to boot, but gets stuck on the Zorin logo.
I've tried going into recovery mode from the grub menu then used the repair option from there multiple times, it no longer downloads anything, as things seem to be fine from its point of view.
I've added the log from Boot Repair below as well.
boot-repair-4ppa2081-zorin1 [20260712_1234]
============================== Boot Info Summary ===============================
=> No boot loader is installed in the MBR of /dev/sda.
=> Windows is installed in the MBR of /dev/sdb.
sda1: __________________________________________________________________________
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/mmx64.efi
/efi/ubuntu/grubx64.efi /efi/ubuntu/mmx64.efi
/efi/ubuntu/shimx64.efi /efi/Zorin/grubx64.efi
/efi/Zorin/mmx64.efi /efi/Zorin/shimx64.efi
/efi/ubuntu/grub.cfg /efi/Zorin/grub.cfg
sda2: __________________________________________________________________________
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
sdb2: __________________________________________________________________________
File system: ext4
Boot sector type: -
Boot sector info:
Operating System:
Boot files:
sdc: ___________________________________________________________________________
File system: iso9660
Boot sector type: Unknown
Boot sector info:
Mounting failed: mount: /mnt/BootInfo/FD/sdc: /dev/sdc already mounted or mount point busy.
dmesg(1) may have more information after failed mount system call.
================================ 1 OS detected =================================
OS#1 (linux): Zorin OS 18.1 (18) on sda2
================================ Host/Hardware =================================
CPU architecture: 64-bit
Video: GA107 [GeForce RTX 3050 8GB] CoffeeLake-S GT2 [UHD Graphics 630] from NVIDIA Corporation Intel Corporation
Live-session OS is Zorin 64-bit (Zorin OS 18, noble, x86_64)
===================================== UEFI =====================================
BIOS/UEFI firmware: F13(5.12) from American Megatrends Inc.
The firmware is EFI-compatible, and is set in EFI-mode for this live-session.
SecureBoot disabled (confirmed by mokutil).
BootCurrent: 0004
Timeout: 1 seconds
BootOrder: 0003,0002,0004,0000
Boot0000* Windows Boot Manager VenHw(99e275e7-75a0-4b37-a2e6-c5385e6c00cb)57494e444f5753000100000088000000780000004200430044004f0042004a004500430054003d007b00390064006500610038003600320063002d0035006300640064002d0034006500370030002d0061006300630031002d006600330032006200330034003400640034003700390035007d00000061000100000010000000040000007fff0400
Boot0002* Zorin OS HD(1,GPT,b1cedd01-5e99-43f6-97d2-058986a2e6e2,0x800,0x100000)/File(\EFI\UBUNTU\SHIMX64.EFI)
Boot0003* Zorin OS HD(1,GPT,b1cedd01-5e99-43f6-97d2-058986a2e6e2,0x800,0x100000)/File(\EFI\ZORIN\SHIMX64.EFI)
Boot0004* UEFI: KingstonDataTraveler 2.01.00 PciRoot(0x0)/Pci(0x14,0x0)/USB(8,0)/CDROM(1,0x25c,0xa000)0000424f
94c7467f956700d44c5b4dcd3967535c sda1/BOOT/bkpbootx64.efi
94c7467f956700d44c5b4dcd3967535c sda1/BOOT/bootx64.efi
39bc76ff6662f4fbe9aa116e4c997b41 sda1/BOOT/fbx64.efi
4ba5a5aad43c197e9fb58b76b404d287 sda1/BOOT/mmx64.efi
94c7467f956700d44c5b4dcd3967535c sda1/ubuntu/grubx64.efi
4ba5a5aad43c197e9fb58b76b404d287 sda1/ubuntu/mmx64.efi
07e25dcaf57c776875f78fa36827c58e sda1/ubuntu/shimx64.efi
94c7467f956700d44c5b4dcd3967535c sda1/Zorin/grubx64.efi
4ba5a5aad43c197e9fb58b76b404d287 sda1/Zorin/mmx64.efi
07e25dcaf57c776875f78fa36827c58e sda1/Zorin/shimx64.efi
============================= Drive/Partition Info =============================
Disks info: ____________________________________________________________________
sda : is-GPT, no-BIOSboot, has---ESP, not-usb, not-mmc, has-os, no-wind, 2048 sectors * 512 bytes
sdb : is-GPT, no-BIOSboot, has-noESP, not-usb, not-mmc, no-os, no-wind, 2048 sectors * 512 bytes
Partitions info (1/3): _________________________________________________________
sda1 : no-os, 64, nopakmgr, no-docgrub, nogrub, nogrubinstall, no-grubenv, noupdategrub, not-far
sda2 : is-os, 64, apt-get, signed grub-efi , grub2, grub-install, grubenv-ok, update-grub, end-after-100GB
sdb2 : no-os, 64, nopakmgr, no-docgrub, nogrub, nogrubinstall, no-grubenv, noupdategrub, end-after-100GB
Partitions info (2/3): _________________________________________________________
sda1 : is---ESP, part-has-no-fstab, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot, vfat
sda2 : isnotESP, fstab-has-goodEFI, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot, ext4
sdb2 : isnotESP, part-has-no-fstab, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot, ext4
Partitions info (3/3): _________________________________________________________
sda1 : not--sepboot, no---boot, part-has-no-fstab, not-sep-usr, no---usr, part-has-no-fstab, no--grub.d, sda
sda2 : not--sepboot, with-boot, fstab-without-boot, not-sep-usr, with--usr, fstab-without-usr, std-grub.d, sda
sdb2 : maybesepboot, no---boot, part-has-no-fstab, not-sep-usr, no---usr, part-has-no-fstab, no--grub.d, sdb
fdisk -l (filtered): ___________________________________________________________
Disk sda: 223.57 GiB, 240057409536 bytes, 468862128 sectors
Disk identifier: B94C8286-E122-4DF2-B044-CD1976210787
Start End Sectors Size Type
sda1 2048 1050623 1048576 512M EFI System
sda2 1050624 468860927 467810304 223.1G Linux filesystem
Disk sdb: 931.51 GiB, 1000204886016 bytes, 1953525168 sectors
Disk identifier: 65CFC392-74D0-454B-8636-F94DF7A7961F
Start End Sectors Size Type
sdb2 32768 1953521663 1953488896 931.5G Linux filesystem
Disk sdc: 14.42 GiB, 15479597056 bytes, 30233588 sectors
Disk identifier: 0x73da26e6
Boot Start End Sectors Size Id Type
sdc1 * 0 7398335 7398336 3.5G 0 Empty
sdc2 604 10843 10240 5M ef EFI (FAT-12/16/32)
sdc3 7401472 30233587 22832116 10.9G 83 Linux
parted -lm (filtered): _________________________________________________________
sda:240GB:scsi:512:512:gpt:ATA GIGABYTE GP-GSTF:;
1:1049kB:538MB:537MB:fat32:EFI System Partition:boot, esp;
2:538MB:240GB:240GB:ext4::;
sdb:1000GB:scsi:512:4096:gpt:ATA WDC WD10EZEX-00B:;
2:16.8MB:1000GB:1000GB:ext4:Basic data partition:;
sdc:15.5GB:scsi:512:512:msdos:Kingston DataTraveler 2.0:;
2:309kB:5552kB:5243kB:::esp;
3:3790MB:15.5GB:11.7GB:ext4::;
Free space >10MiB: ______________________________________________________________
sdb: 0.02MiB:16.0MiB:16.0MiB
sdc: 5.29MiB:3614MiB:3609MiB
blkid (filtered): ______________________________________________________________
NAME FSTYPE UUID PARTUUID LABEL PARTLABEL
sda
├─sda1 vfat 926C-1E6A b1cedd01-5e99-43f6-97d2-058986a2e6e2 EFI System Partition
└─sda2 ext4 d0f4a3b8-6d2f-4798-9d31-9845c2bf7a77 00b72051-e76b-4968-9eed-4858808be498
sdb
└─sdb2 ext4 e1740feb-5fc0-4e2d-a66f-3c4dd369513f da528d20-61e3-44db-b55b-4d4a0c413c1a stuff Basic data partition
sdc iso9660 2026-01-26-22-31-50-00 Zorin OS 18 Core 64bit
├─sdc1 iso9660 2026-01-26-22-31-50-00 73da26e6-01 Zorin OS 18 Core 64bit
├─sdc2 vfat B4C4-7C89 73da26e6-02
└─sdc3 ext4 32473537-6750-4e39-ac05-0b294cb08a23 73da26e6-03 writable
Mount points (filtered): _______________________________________________________
Avail Use% Mounted on
/dev/sda1 496.4M 3% /mnt/boot-sav/sda1
/dev/sda2 113.9G 43% /mnt/boot-sav/sda2
/dev/sdb2 153.5G 78% /mnt/boot-sav/sdb2
/dev/sdc1 0 100% /cdrom
efivarfs 193.2K 23% /sys/firmware/efi/efivars
Mount options (filtered): ______________________________________________________
/dev/sda1 vfat rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro
/dev/sda2 ext4 rw,relatime
/dev/sdb2 ext4 rw,relatime
/dev/sdc1 iso9660 ro,noatime,nojoliet,check=s,map=n,blocksize=2048,iocharset=utf8
===================== sda1/efi/ubuntu/grub.cfg (filtered) ======================
search.fs_uuid d0f4a3b8-6d2f-4798-9d31-9845c2bf7a77 root hd0,gpt2
set prefix=($root)'/boot/grub'
configfile $prefix/grub.cfg
====================== sda1/efi/Zorin/grub.cfg (filtered) ======================
search.fs_uuid cb3598ff-1be4-4913-a8a7-882491d26787 root hd0,gpt2
set prefix=($root)'/boot/grub'
configfile $prefix/grub.cfg
====================== sda2/boot/grub/grub.cfg (filtered) ======================
Zorin OS d0f4a3b8-6d2f-4798-9d31-9845c2bf7a77
### END /etc/grub.d/30_os-prober ###
UEFI Firmware Settings uefi-firmware
### END /etc/grub.d/30_uefi-firmware ###
========================== sda2/etc/fstab (filtered) ===========================
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/sda2 during installation
UUID=d0f4a3b8-6d2f-4798-9d31-9845c2bf7a77 / ext4 errors=remount-ro 0 1
# /boot/efi was on /dev/sda1 during installation
UUID=926C-1E6A /boot/efi vfat umask=0077 0 1
/swapfile none swap sw 0 0
/dev/disk/by-uuid/e1740feb-5fc0-4e2d-a66f-3c4dd369513f /mnt/stuff auto nosuid,nodev,nofail,x-gvfs-show 0 0
======================= sda2/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 nomodeset"
GRUB_CMDLINE_LINUX=""
GRUB_DISABLE_OS_PROBER=false
GRUB_THEME=/usr/share/grub/themes/zorin/theme.txt
GRUB_DISABLE_MEMTEST=true
==================== sda2: Location of files loaded by Grub ====================
GiB - GB File Fragment(s)
217.615661621 = 233.663037440 boot/grub/grub.cfg 1
220.313472748 = 236.559790080 boot/vmlinuz 2
8.805629730 = 9.454972928 boot/vmlinuz-6.17.0-29-generic 1
223.000946045 = 239.445442560 boot/vmlinuz-6.17.0-35-generic 1
220.313472748 = 236.559790080 boot/vmlinuz-7.0.14-2-liquorix-amd64 2
223.000946045 = 239.445442560 boot/vmlinuz.old 1
215.483737946 = 231.373901824 boot/initrd.img 4
215.508724213 = 231.400730624 boot/initrd.img-6.17.0-29-generic 9
220.821285248 = 237.105049600 boot/initrd.img-6.17.0-35-generic 4
215.483737946 = 231.373901824 boot/initrd.img-7.0.14-2-liquorix-amd64 4
220.821285248 = 237.105049600 boot/initrd.img.old 4
===================== sda2: 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 214 May 17 2025 40_custom
-rwxr-xr-x 1 root root 215 May 17 2025 41_custom
Suggested repair: ______________________________________________________________
The default repair of the Boot-Repair utility would reinstall the grub-efi of
sda2,
using the following options: sda1/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 (sda1/efi/****/grub****.efi (**** will be updated in the final message) file) !
