From the command prompt on Windows 10, I used this command:
mbr2gpt.exe /convert /allowfullOS
I then restarted the computer and was able to boot into Windows 10 but not manjaro.
I have Windows on the C drive and Linux on the E drive. Which I then used 130GB from 690GB for Linux
Use a Manjaro Live USB to check your efi partition, I suppose that Windows 10 has removed your Linux bootloader because Windows Bootloader doesn’t support multiple OS.
My personal solution is reinstall the Bootloader (like rEFInd) to boot both Manjaro and Windows 10 instead of using Windows Bootloader.
That solution might cause problem when Windows 10 has some big update, but in general that should work fine.
To do it, you can use manjaro-chroot, see detail:
https://wiki.manjaro.org/index.php/GRUB/Restore_the_GRUB_Bootloader
Thank you for your reply
I think its Secure Boot that doesn’t allow Linux to run so I if I turn that off I should probably be fine
Exactly, the grub provided by manjaro is not signed for SecureBoot…
This is not true, you can configure others. It needs to be done manually though.
(Do a search on the web.)
I have disabled secure boot but I still can’t access manjaro
Try booting from a LiveUSB version of Manjaro, then paste between ``` (on separate lines), the output of these commands:
With the info from those people might be able to help further, because as of now there is not enough info for anyone to give any help that could fix stuff…
I found this video: Manjaro: recover GRUB from a Windows Update - YouTube
If this doesn’t work I may have to come to you, other than that, sorry for bothering you
So it looks like I will need your help.
I ran lsblk -f and go the output:
loop0
squash 4.0 0 100% /run/miso/
loop1
squash 4.0 0 100% /run/miso/
loop2
squash 4.0 0 100% /run/miso/
loop3
squash 4.0 0 100% /run/miso/
sda
├─sda1
│ ntfs System
│ C0626EA1626E9C42
├─sda2
│ vfat FAT32 F471-D53A
├─sda3
│
├─sda4
│ ntfs 7800B09D00B063B2
├─sda5
│ ntfs 0AD257B2D257A0AD
├─sda6
│ ntfs E23A7DB63A7D87F5
├─sda7
│ ntfs Recovery
│ E272A65A72A632E9
├─sda8
│ ext4 1.0 7a2f10f5-39e1-4c70-90ae-5e70c668773a 91.4G 21% /mnt
├─sda9
│ swap 1 9281681f-6186-4700-9cf6-46f247600e45
└─sda10
sdb iso966 Jolie MANJARO_XFCE_2003
│ 2020-06-06-07-11-25-00 0 100% /run/miso/
├─sdb1
│ iso966 Jolie MANJARO_XFCE_2003
│ 2020-06-06-07-11-25-00
└─sdb2
vfat FAT12 MISO_EFI
08E4-9928
sr0
nvme0n1
│
├─nvme0n1p1
│ ntfs System
│ 9E5C57F45C57C5A5
├─nvme0n1p2
│ ntfs Windows
│ A2C45842C4581ABD
├─nvme0n1p3
│ vfat FAT32 50B6-6950
└─nvme0n1p4
ntfs Recovery
8AF4585AF4584A99
The man in the video told me to run mount /dev/sda8 /mnt while in super user. It worked as sda8 is where my manjaro partition is.
I don’t know where my ‘efi’ partition is. I tried mount /dev/sda1 /mnt/boot/efi but it said that directory doesn’t exist
This one is your ESP (aka EFI partition):
mount /dev/sda2 /mnt/boot/efi
mount: /mnt/boot/efi: mount point does not exist
It didn’t work, does that mean its already in EFI?
I ran this lsblk -o PATH,PTTYPE,PARTTYPE,FSTYPE,PARTTYPENAME
And got the output:
/dev/loop0
squash
/dev/loop1
squash
/dev/loop2
squash
/dev/loop3
squash
/dev/sda
gpt
/dev/sda1
gpt de94bba4-06d1-4d40-a16a-bfd50179d6ac ntfs Windows recovery environment
/dev/sda2
gpt c12a7328-f81f-11d2-ba4b-00a0c93ec93b vfat EFI System
/dev/sda3
gpt e3c9e316-0b5c-4db8-817d-f92df00215ae Microsoft reserved
/dev/sda4
gpt ebd0a0a2-b9e5-4433-87c0-68b6b72699c7 ntfs Microsoft basic data
/dev/sda5
gpt de94bba4-06d1-4d40-a16a-bfd50179d6ac ntfs Windows recovery environment
/dev/sda6
gpt de94bba4-06d1-4d40-a16a-bfd50179d6ac ntfs Windows recovery environment
/dev/sda7
gpt de94bba4-06d1-4d40-a16a-bfd50179d6ac ntfs Windows recovery environment
/dev/sda8
dos 0fc63daf-8483-4772-8e79-3d69d8477de4 ext4
/dev/sda9
gpt 0657fd6d-a4ab-43c4-84e5-0933c84b4f4f swap Linux swap
/dev/sda10
gpt 0fc63daf-8483-4772-8e79-3d69d8477de4 Linux filesystem
/dev/sdb
dos iso966
/dev/sdb1
dos 0x0 iso966 Empty
/dev/sdb2
dos 0xef vfat EFI (FAT-12/16/32)
/dev/sr0
/dev/nvme0n1
gpt
/dev/nvme0n1p1
gpt ebd0a0a2-b9e5-4433-87c0-68b6b72699c7 ntfs Microsoft basic data
/dev/nvme0n1p2
gpt ebd0a0a2-b9e5-4433-87c0-68b6b72699c7 ntfs Microsoft basic data
/dev/nvme0n1p3
gpt c12a7328-f81f-11d2-ba4b-00a0c93ec93b vfat EFI System
/dev/nvme0n1p4
gpt de94bba4-06d1-4d40-a16a-bfd50179d6ac ntfs Windows recovery environment
I also cannot find a mnt/boot/efi file on manjaro, It doesn’t exist for me
When you boot with the LiveUSB to be able to fix stuff, there are ofcourse no subdirectories under /mnt.
You need to create the mount point first when usung mount, but it is unnneed when using systemd-mount…
So try one of:
Under normal operations there are no subdirectories under /mnt…
After following through the video, I ran update-grub
I got the output: Generating grub configuration file ... Found theme: /usr/share/grub/themes/manjaro/theme.txt Found linux image: /boot/vmlinuz-5.8-x86_64 Found initrd image: /boot/intel-ucode.img /boot/initramfs-5.8-x86_64.img Found initrd fallback image: /boot/initramfs-5.8-x86_64-fallback.img Found linux image: /boot/vmlinuz-5.7-x86_64 Found initrd image: /boot/intel-ucode.img /boot/initramfs-5.7-x86_64.img Found initrd fallback image: /boot/initramfs-5.7-x86_64-fallback.img grub-probe: error: cannot find a GRUB drive for /dev/sdb1. Check your device.map. grub-probe: error: cannot find a GRUB drive for /dev/sdb1. Check your device.map. Adding boot menu entry for UEFI Firmware Settings ... Found memtest86+ image: /boot/memtest86+/memtest.bin done
How do I add a grub drive for sdb1?
You mean `/dev/sdb1 im sure…
/dev/sdb is your USB-Stick which can’t be added because it is a removable drive…
Alright, it worked. I can access both linux and windows from the GRUB boot loader
Thank you everyone for helping me, and thanks @TriMoon for putting up with my impatience
Don’t forget to mark the topic as solved by selecting the reply that helped you the most to fix the title as solution, so other readers later on can see the solution(s)
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