Arch Linux

aarcot100

Member

Registered: 2023-01-06

Posts: 1

Windows Unmountable Boot Volume Error Message After Arch Dual Boot

Summary - I installed Arch on a desktop with Windows 11 and am unable to boot into Windows.

I already had Windows 11 installed on my desktop and installed Arch on a separate partition.
I wanted to use the same EFI partition for both Windows and Arch, so I installed GRUB.

Using the Arch Wiki and information from online, I ran the following commands to install GRUB and get it to recognize Windows.
mkdir /boot/efi
mount /dev/efi_partition /boot/efi
grub-install --target=x86_64-efi --bootloader-id=grub
Uncommented GRUB_DISABLE_OS_PROBER=false in /etc/default/grub
mkdir Windows
mount -t ntfs3 /dev/windows_root_partition Windows
os-prober
grub-mkconfig -o /boot/grub/grub.cfg
umount -R Windows

Upon rebooting, the GRUB bootloader shows up and Arch can be booted correctly.
However, attempting to boot into Windows causes the error message 'Unmountable Boot Volume.'
Windows attempts to resolve this issue but just restarts when it doesn't work.
I am unsure of whether this issue has something to do with my mounting of the Windows partition.
Please let me know of any ideas you have to fixing this.
I can provide command outputs from the Arch installation as it seems to be working with no issues.

Output of fdisk -l /dev/nvme0n1:
Disk model: Samsung SSD 980 PRO with Heatsink 1TB
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: gpt
Disk identifier: C92C56E3-0E1A-4D06-B3A4-08E01645E5C8

Device              Start        End    Sectors  Size Type
/dev/nvme0n1p1       2048     206847     204800  100M EFI System
/dev/nvme0n1p2     206848     239615      32768   16M Microsoft reserved
/dev/nvme0n1p3     239616    1929215    1689600  825M Windows recovery environment
/dev/nvme0n1p4    1929216 1870491647 1868562432  891G Microsoft basic data
/dev/nvme0n1p5 1870491648 1937600511   67108864   32G Linux filesystem
/dev/nvme0n1p6 1937600512 1953523711   15923200  7.6G Linux swap

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 76,411

Re: Windows Unmountable Boot Volume Error Message After Arch Dual Boot

1. please use code tags for readability, https://bbs.archlinux.org/help.php#bbcode
2. so windows doesn't boot - what does that have to do with arch and/or linux?
3. can you still mount the windows partition on linux?
4. does it look like there's some windows installed?
5. 3rd link below, worst case scenario is un/mounting the active filesystem has corrupted it
6.

Windows attempts to resolve this issue

How? What errors does it suggest?

---

How to upload text · How to boot w/o GUI · Disable Windows Fast-Start! · Fix your xinitrc