I have two os: windows 10 and manjaro.
Kernel: 4.14.53-1, gnome
I updated my windows to 1803 and it changed my grub into grub rescue mode (unknown filesystem), i managed to get into Manjaro by using the followings in the grub rescue command:
$ set boot=(hd0,gpt7)
$ set prefix=(hd0,gpt7)/boot/grub
But, I have to do this every time, which is annoying.
My device is nvme0n1, here are the main partitions:
/dev/nvme0n1p6 ------- vfat, mount point /boot/efi
/dev/nvme0n1p7 ------- ext4, mount point /
In addition, I type 'fdisk -l', and I found that it seems the windows changed nvme0n1p6 filesystem into Microsoft basic data. I think this is the problem why it keeps popping unknown filesystem in grub rescue.
Here are the following ways I tried, but none of them work:
- https://wiki.manjaro.org/index.php?title=Restore_the_GRUB_Bootloader#Restore_GRUB (For UEFI)
https://wiki.manjaro.org/index.php?title=Restore_the_GRUB_Bootloader#Restore_GRUB (For BIOS)
In addition, I used nvme0n1 instead of sda in these method. No errors showed either grub-install and update-grub.
It still keeps popping grub rescue (unknown filesystem).
Thank you for reading