Arch Linux PCIE Passthrough: Initramfs Hang

Operating Systems & Open Source Linux
,
1

I've been following the Arch Wiki unto this point, and I've been unable to boot after adding the vfio modules to the init image.

My mkinitcpio.conf includes the following:

MODULES="vfio vfio_iommu_type1 vfio_pci vfio_virqfd"
HOOKS="base udev autodetect modconf block keyboard encrypt1 encrypt2 encrypt3 encrypt4 encrypt5 encrypt6 lvm2 zfs filesystems"

The only relevant kernel parameter I've included at the point is:

intel_iommu=on

The boot debug logs are the following:

Entry "/dev/mapper/control" matches include prefix "/dev".
Entry "/dev/vfio" matches include prefix "/dev".
Entry "/dev/vfio/vfio" matches include prefix "/dev".
Running create action for entry d /dev/mapper
Created directory "/dev/mapper".
"/dev/mapper" has right mode 40755
Running create action for entry c /dev/mapper/control
Created char device node "/dev/mapper/control" 1:128.
"/dev/mapper/control" has right mode 20600
Running create action for entry d /dev/vfio
Created directory "/dev/vfio".
"/dev/vfio" has right mode 40755
Running create action for entry c /dev/vfio/vfio
Created char device node "/dev/vfio/vfio" 1:128.
"/dev/vfio/vfio" has right mode 20600
set children_max to 24
did not find dedicated cgroup: No medium found
starting version 229
hwdb.bin does not exist, please run udevadm hwdb --update
:: running early hook [lvm2]
Load module index
Created link configuration context.
timestamp of '/usr/lib/udev/rules.d' changed
Reading rules file: /usr/lib/udev/rules.d/10-dm.rules
Reading rules file: /usr/lib/udev/rules.d/11-dm.rules
Reading rules file: /usr/lib/udev/rules.d/11-dm-initramfs.rules
Reading rules file: /usr/lib/udev/rules.d/11-dm-lvm.rules
[    0.504718] VFIO - User Level meta-driver version: 0.3
Reading rules file: /usr/lib/udev/rules.d/13-dm-disk.rules
Reading rules file: /usr/lib/udev/rules.d/50-udev-default.rules

The boot does not preceed further. I haven't blacklisted any video drivers, though I also haven't installed any yet.

For completion's sake, the hardware is:
* i7-4790
* Asus Z97 Sabertooth Mark II
* Radeon R9 290

Thanks!

2

Are you trying to boot to a terminal or GUI? Do you get the state of booting on the terminal?

3

It hangs in the init disk, before any shell is invoked. No gui

4

Try having a look through the guide I wrote with help from the Tek Syndicate community to see if you missed anything https://gist.github.com/benjamingwynn/54480cc2ff8f14a9244854cacb4e640b

EDIT: I notice people are still clicking this link, so I’ve updated it to one that’s still up. I don’t know if the tutorial I wrote is still relevant, however.

1 Like
5

This is hella thorough. I'll give it to a go. Thanks!

6

No problem! It took a few days to write, but other members helped improve parts that were lacking and add stuff that was missing.

I hope it helps you :)