Arch Linux

jfk

Member

Registered: 2017-12-11

Posts: 131

[SOLVED] Cannot mount partition with fstab

My PC runs a dual system Windows/Arch. Each system stands on a separate SSD. An additional disk (sda2) runs a NTFS partition for sharing contents between both OS.

$ blkid
/dev/mapper/volgroup-swap: UUID="3b8d1bfc-091f-424f-ac75-4624d6e85861" TYPE="swap"
/dev/nvme0n1p1: UUID="643A-9A20" BLOCK_SIZE="512" TYPE="vfat" PARTLABEL="boot" PARTUUID="3db48622-6d0d-4b0a-93e3-5b7d33643d30"
/dev/nvme0n1p2: UUID="c9758b45-9516-4c66-929d-3738796f0eeb" TYPE="crypto_LUKS" PARTLABEL="lvm" PARTUUID="563993b8-7799-4422-852c-d804a9ca6014"
/dev/mapper/volgroup-root: UUID="7ff34224-f45f-4ee9-82a3-789e4c0a1bf5" BLOCK_SIZE="4096" TYPE="ext4"
/dev/mapper/cryptlvm: UUID="bPDZcl-4bkh-nRGo-bMjI-O0eH-7WKL-5k0pHb" TYPE="LVM2_member"
/dev/nvme1n1p4: BLOCK_SIZE="512" UUID="8E88336488334A4B" TYPE="ntfs" PARTUUID="8ad4295a-cea9-4484-94f9-b6eb556eb625"
/dev/nvme1n1p2: PARTLABEL="Microsoft reserved partition" PARTUUID="dfa325dc-900a-42e0-9808-46910affa416"
/dev/nvme1n1p3: BLOCK_SIZE="512" UUID="1A4832124831ECDF" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="9088ce81-de70-426f-bde6-25bc8bb66098"
/dev/nvme1n1p1: UUID="8431-30A9" BLOCK_SIZE="512" TYPE="vfat" PARTLABEL="EFI system partition" PARTUUID="35eb5bc5-906f-48e7-98a6-337c7c1ca747"
/dev/sda2: LABEL="Samsung EVO 870" BLOCK_SIZE="512" UUID="D28ABDA88ABD898D" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="84d3fefb-3dc3-492d-a779-75e34528d852"
/dev/sda1: PARTLABEL="Microsoft reserved partition" PARTUUID="35fccc8b-ea92-401b-a76b-2d8d3b5ac655" 

Until yesterday my fstab was mounting and binding fine:

# /dev/mapper/volgroup-root
UUID=7ff34224-f45f-4ee9-82a3-789e4c0a1bf5       /               ext4            rw,relatime     0 1

# /dev/nvme0n1p1
UUID=643A-9A20          /boot           vfat            rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=ascii,shortname=mixed,utf8,errors=remount-ro   0 2

# /dev/mapper/volgroup-swap
UUID=3b8d1bfc-091f-424f-ac75-4624d6e85861       none            swap            defaults        0 0

# /dev/sda2
UUID=D28ABDA88ABD898D   /mnt/sda2    ntfs3   defaults        0 2

# Musique
/mnt/sda2/Musique   /home/fabien/Musique    none    bind        0 0

# Windows
/mnt/sda2/Windows   /Windows    none    bind        0 0

However, after restarting from Windows 10 to Linux, I now get the following errors from systemd:

[FAILED] Failed to mount /mnt/sda2
[DEPEND] Dependency failed for /home/fabien/Musique
[DEPEND] Dependency failed for Local File System
[DEPEND] Dependency failed for /Windows

The journal has:

ntfs3(sda2): It is recommended to use chkdsk
mount: wrong fs type, bad option, bad superblock on /dev/sda2, missing codepage or helper program, or other error

I ran chkdsk on Windows. All looks fine.

Once I uncomment the appropriate lines in my fstab and get into my environment, I manage to manually mount the disk with ntfs-3g.

Kernel is up to date:

$ uname -a
Linux 8700g 6.12.4-arch1-1 #1 SMP PREEMPT_DYNAMIC Mon, 09 Dec 2024 14:31:57 +0000 x86_64 GNU/Linux

Integrity on Linux looks fine as well:

$ ntfsfix /dev/sda2
Mounting volume... OK
Processing of $MFT and $MFTMirr completed successfully.
Checking the alternate boot sector... OK
NTFS volume version is 3.1.
NTFS partition /dev/sda2 was processed successfully.

Last edited by jfk (2024-12-16 22:59:07)

loqs

Member

Registered: 2014-03-06

Posts: 18,868

Re: [SOLVED] Cannot mount partition with fstab

Is there a mismatch between installed kernel package and running kernel? What is the output of `pacman -Q linux`

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,146

Re: [SOLVED] Cannot mount partition with fstab

ntfsfix will actually set the dirty bit, to clear it without a windows chkdsk you'd do ntfsfix -d, after running chkdsk from windows make sure and double check fast boot is not enabled: https://wiki.archlinux.org/title/Dual_b … ibernation

If you want to force mount it despite the warning with ntfs3 you could supply the force flag.

jfk

Member

Registered: 2017-12-11

Posts: 131

Re: [SOLVED] Cannot mount partition with fstab

ntfsfix will actually set the dirty bit, to clear it without a windows chkdsk you'd do ntfsfix -d

Thanks, the -d flag seems indeed to have solved the issue. I disabled fast boot for the future as well.

cryptearth

Member

Registered: 2024-02-03

Posts: 2,100

Re: [SOLVED] Cannot mount partition with fstab

/mnt/sda2/Windows   /Windows    none    bind        0 0

aside from me highly discourage using ntfs at all under linux (use exFAT for data exchange) mounting C:\Windows is a catastrophe waiting to happen - you should remove that line without replacement ASAP - I can't see any reason to do THAT - not even as a dev as a windows dev you should do whatever it is you do on windows instead from linux
as for bind-mount your music folder into home ... well, it's one way - I guess - why not just use a symbolic link?
as for chkdsk: when you're asked to run chkdsk from windows - do so! you don't get that prompted for nothing or to ignore it - recommend options for chkdsk: /X /F /B /R
as for fast start: do it NOW! not at some time in the future - NOW! - the issue with fast start: when you just click "shutdown" instead of "restart" and boot into linux from that state with fast start enabled you risk any ntfs partition to become corrupted - as modern windows "shutdown" isn't a proper shutdown but more of a deep hibernate - hence either disable fast start to get a full clean shutdown - or only always use "restart" from windows and kill the system when your linux bootloder shows up

jfk

Member

Registered: 2017-12-11

Posts: 131

Re: [SOLVED] Cannot mount partition with fstab

mounting C:\Windows is a catastrophe waiting to happen

As I said in my description, there's no system on sda2. It is a third non-NVME disk that I use to quickly access random files from one OS to the other. "Windows" is just a user folder. My systems are not set to communicate between each other precisely for security purposes.

why not just use a symbolic link?

It is cleaner. Symbolic links necessarily add fixed objects to your folder, binding do not.

Regarding fast start, the modification is done.

Last edited by jfk (2024-12-17 01:37:09)

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,146

Re: [SOLVED] Cannot mount partition with fstab

While I disagree with cryptearths general disdain/experiences with ntfs, doing a proper chkdsk should always be the first choice rather than ntfsfix (-d or not) since ntfsfix simply doesn't have all the necessary tooling to properly ensure consistency of the drive.

A correctly ran chkdsk (that's not masked by the fact fast boot is enabled -- that one should always be off! -- and was likely the cause for the continued dirty flag) will clear the dirty bit and properly fix any internal inconsistencies.

The ntfs3 driver was very prone to trigger this a couple of kernels ago I haven't had any issues of note with it since around 6.10 and I make fairly heavy use of the NTFS disk for shared steam games and music collections.