[Pkg-zfsonlinux-devel] Bug#1122089: zfs-initramfs: nvme modules missing from initrd when using modules=dep and zfs root

[Jesse Rhodes]

Package: zfs-initramfs
Version: 2.3.5-2
Severity: important
X-Debbugs-Cc: jesse at sney.ca

Dear Maintainer, 

When updating the initrd on a forky system with a zfs root on nvme, with 
modules=dep set in /etc/initramfs-tools/initramfs.conf, the update-initramfs 
script was able to add the zfs modules but not the ones required for nvme. So 
boot failed when zfs was unable to import the root pool. 

It looks like this happens because initramfs-tools explicitly hands off 
determining the root filesystem modules for zfs [1], and then all hooks/zfs has 
is "manual_add_modules zfs" [2]. ([1] is also why I'm filing this bug here 
instead of against initramfs-tools.)

I was able to fix this for my own system by adding nvme to 
/etc/initramfs-tools/modules. But there should be some kind of logic to make 
sure the block device drivers are included automatically when using a zfs root, 
so this doesn't happen.

Thanks for your work and please let me know if you need any more information,

sney

[1] https://sources.debian.org/src/initramfs-tools/0.150/hook-functions#L521
[2] https://sources.debian.org/src/zfs-linux/2.3.5-2/contrib/initramfs/hooks/zfs.in#L50


-- System Information:
Debian Release: forky/sid
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 6.17.9+deb14-amd64 (SMP w/16 CPU threads; PREEMPT)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_WARN, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=en_CA.UTF-8, LC_CTYPE=en_CA.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages zfs-initramfs depends on:
ii  busybox                 1:1.37.0-7
ii  initramfs-tools         0.150
ii  zfs-dkms [zfs-modules]  2.3.5-2
ii  zfsutils-linux          2.3.5-2

zfs-initramfs recommends no packages.

zfs-initramfs suggests no packages.

-- no debconf information