#1145141 linux-image-7.1.8+deb13-amd64: CONFIG_NTFS3_FS disabled, reverted to legacy CONFIG_NTFS_FS

#1145141#5
Date:
2026-08-23 10:04:15 UTC
From:
To:
Dear Maintainer,

Comparing /boot/config-* across recent backports (trixie) kernels:

  linux-image-7.1.3+deb13-amd64: CONFIG_NTFS3_FS=m          (modern driver present)
  linux-image-7.1.7+deb13-amd64: CONFIG_NTFS3_FS not set, CONFIG_NTFS_FS=m instead
  linux-image-7.1.8+deb13-amd64: same as 7.1.7

This looks like a regression: the modern ntfs3 driver (read/write, actively
maintained, enabled after the fix for #998627/#1000697) was replaced by the
legacy ntfs.ko driver (largely unmaintained, limited write support) between
7.1.3 and 7.1.7/7.1.8.

Effect: `mount -t ntfs3 ...` fails with "unknown filesystem type 'ntfs3'"
and `modprobe ntfs3` fails with "Module ntfs3 not found", since the .ko
is simply not built for these kernel versions.

uname -r: 7.1.8+deb13-amd64