Mhwd doesn't run

Support Software & Applications
1

Hi all!
I tried to rum mhwd yesterday, but it refuses to run:

sudo mhwd                                                                                                                                                                                                                                                                 
Error: Following directories do not exist:
> /var/lib/mhwd/db/usb
> /var/lib/mhwd/local/usb

I reinstalled it (pacman -S mhwd) but the error persists.
I googled for the problem - found no obvious help.
Checked about these directories in my system - they don’t exist.

ls -lah /var/lib/mhwd/db
Summary 
drwxr-xr-x 3 root root 4,0K Νοε  13 22:46 .
drwxr-xr-x 6 root root 4,0K Αυγ  12 14:01 ..
drwxr-xr-x 4 root root 4,0K Αυγ  20 18:56 pci

ls -lah /var/lib/mhwd/local
Summary 
drwxr-xr-x 3 root root 4,0K Νοε  13 22:46 .
drwxr-xr-x 6 root root 4,0K Αυγ  12 14:01 ..
drwxr-xr-x 3 root root 4,0K Αυγ  20 18:56 pci

I understand that I can create these directories manually (with correct permissions, writable only by root) - but I thought I d ask here first and report the problem first.

2

There is more than mhwd:

pacman -Ss mhwd
extra/bmenu 0.25-1
    Bash scripts providing a collection of terminal applications in a simple UI
extra/mhwd 0.6.5-36 [installed]
    Manjaro Linux Hardware Detection library and application
extra/mhwd-amdgpu 19.1.0-1 [installed]
    MHWD module-ids for amdgpu
extra/mhwd-ati 19.1.0-1 [installed]
    MHWD module-ids for ati 19.1.0
extra/mhwd-db 0.6.5-36 [installed]
    Manjaro Linux Hardware Detection Database
extra/mhwd-nvidia 550.120-1 [installed]
    MHWD module-ids for nvidia 550.120
extra/mhwd-nvidia-390xx 390.157-14 [installed]
    MHWD module-ids for nvidia 390.157
extra/mhwd-nvidia-470xx 470.256.02-4 [installed]
    MHWD module-ids for nvidia 470.256.02
3

had the same issue, created the 2 missing directories, now everything works…

4

What version of mhwd & mhwd-db do you have installed?

pacman -Qi mhwd mhwd-db | grep Version

No matter which version, mhwd installs both these directories:

❯ pacman -Qo /var/lib/mhwd/{db,local}/usb
/var/lib/mhwd/db/usb/ is owned by mhwd 0.6.6-1
/var/lib/mhwd/local/usb/ is owned by mhwd 0.6.6-1
5

From up-to-date testing channel:

$ pacman -Qi mhwd mhwd-db | grep Version
Version         : 0.6.6-1
Version         : 20241117-1
$ pacman -Qo /var/lib/mhwd/{db,local}/usb
error: No package owns /var/lib/mhwd/db/usb
error: No package owns /var/lib/mhwd/local/usb
$ pacman -Qkk mhwd mhwd-db
mhwd: 15 total files, 0 altered files
mhwd-db: 51 total files, 0 altered files
6

Ah, I just realized what happened. I’ll push 0.6.6-2 here shortly.

4 Likes
7

Happened to me yesterday when I changed one instance to the testing branch.

So what are the permissions on those folders?

e.g: owner:group 775 ?

8

Forgot to mention that I am on the testing branch…

pacman -Qi mhwd mhwd-db | grep Version
Version         : 0.6.6-1
Version         : 20240506-2

root:root, 755

I have created the directories manually, so mhwd runs fine. But I guess pushing a version which corrects the problem is the correct solution. Thanks!

1 Like
9 
$ mhwd                                                                        
Error: Following directories do not exist:
> /var/lib/mhwd/db/usb
> /var/lib/mhwd/local/usb

Copy/pasta fix:

$ sudo mkdir /var/lib/mhwd/db/usb /var/lib/mhwd/local/usb
$ sudo chown root:root /var/lib/mhwd/db/usb /var/lib/mhwd/local/usb
$ sudo chmod 775 /var/lib/mhwd/db/usb /var/lib/mhwd/local/usb

Working.

$ mhwd -li 
> Installed PCI configs:
--------------------------------------------------------------------------------
                  NAME               VERSION          FREEDRIVER           TYPE
--------------------------------------------------------------------------------
  video-virtualmachine            2024.05.06                true            PCI
     video-modesetting            2020.01.13                true            PCI
           video-linux            2024.05.06                true            PCI
          video-nvidia            2024.05.03               false            PCI


Warning: No installed USB configs!
10

…is no longer relevant.

Have you updated to 0.6.6-2 yet?

11

I checked for updates not long before posting.

I see it now.

12 
[tracy@daphne ~]$ mhwd -v
Manjaro Hardware Detection v0.6.5

Copyright (C) 2012-2020 Manjaro Linux Developers
This is free software licensed under GNU GPL v3.0
FITNESS FOR A PARTICULAR PURPOSE

What is the point of those Directories? on my set up they are empty.

13

One would guess they would contain some sort of drivers provided over USB.
But in all the years of its existence, I dont recall if mhwd ever did provide any such drivers.
And it certainly does not now.

The paths are like this:

/var/lib/mhwd/db/ = for available mhwd profiles
/var/lib/mhwd/local/ = for installed mhwd profiles

1 Like
14

Don’t forget to update your user profile via Forum Profile Preferences to reflect that you are no longer on on Stable branch.

1 Like
15

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