Hi,
I tried to build a x86 LXQt ISO image, something go wrong during the process on stable branch
buildiso -f -p lxqt -b stable -k linux515
...
==> Done [Distribution: Release 21.2rc1 Codename Qonos]
-> Configuring polkit user rules
--> Restoring [/var/lib/manjaro-tools/buildiso/kde/x86_64/livefs/etc/pacman.conf] ...
--> overlayfs umount: [/var/lib/manjaro-tools/buildiso/kde/x86_64/livefs]
--> umount overlayfs: [/var/lib/manjaro-tools/buildiso/kde/x86_64/livefs]
-> Cleaning [livefs]
==> Done [Live installation] (livefs)
--> Loading Packages: [Packages-Mhwd] ...
==> Prepare [drivers repository] (mhwdfs)
--> overlayfs mount: [/var/lib/manjaro-tools/buildiso/kde/x86_64/mhwdfs]
--> Restoring [/var/lib/manjaro-tools/buildiso/kde/x86_64/mhwdfs/etc/pacman.conf] ...
Root : /
Conf File : /etc/pacman.conf
DB Path : /var/lib/pacman/
Cache Dirs: /var/cache/pacman/pkg/
Hook Dirs : /usr/share/libalpm/hooks/ /etc/pacman.d/hooks/
Lock File : /var/lib/pacman/db.lck
Log File : /var/log/pacman.log
GPG Dir : /etc/pacman.d/gnupg/
Targets : linux515-bbswitch linux515-broadcom-wl linux515-zfs zfs-utils linux515-headers zfs-dkms libva-intel-driver libva-mesa-driver libva-vdpau-driver lib32-libva-vdpau-driver libxaw libxpm libxvmc mesa-vdpau lib32-mesa-vdpau lib32-libxvmc lib32-primus linux515-nvidia-390xx linux515-nvidia-470xx linux515-nvidia nvidia-390xx-utils nvidia-470xx-utils libxnvctrl-470xx nvidia-utils libxnvctrl lib32-nvidia-470xx-utils lib32-nvidia-390xx-utils lib32-nvidia-utils opencl-mesa open-vm-tools primus qemu-guest-agent bumblebee nvidia-prime gtkmm3 spice-vdagent virtualbox-guest-utils vulkan-radeon lib32-vulkan-radeon vulkan-intel lib32-vulkan-intel xf86-input-vmmouse xf86-video-amdgpu xf86-video-ati xf86-video-dummy xf86-video-fbdev xf86-video-intel xf86-video-nouveau xf86-video-openchrome xf86-video-sisusb xf86-video-vesa xf86-video-vmware xf86-video-voodoo
:: Synchronizing package databases...
core 168,9 KiB 448 KiB/s 00:00 [#####################################################] 100%
extra 1917,3 KiB 812 KiB/s 00:02 [#####################################################] 100%
community 6,8 MiB 581 KiB/s 00:12 [#####################################################] 100%
multilib 176,5 KiB 519 KiB/s 00:00 [#####################################################] 100%
error: target not found: libxnvctrl-470xx
error: target not found: libxnvctrl-470xx
-> Copying mhwd package cache ...
building file list ... done
sent 17 bytes received 12 bytes 58.00 bytes/sec
total size is 0 speedup is 0.00
==> ERROR: File '/var/lib/manjaro-tools/buildiso/kde/x86_64/mhwdfs/opt/mhwd/pkg/*pkg.tar*' not found.
==> No packages modified, nothing to do.
==> ERROR: A failure occurred in make_image_mhwd().
Aborting...
--> overlayfs umount: [/var/lib/manjaro-tools/buildiso/kde/x86_64/mhwdfs]
--> umount overlayfs: [/var/lib/manjaro-tools/buildiso/kde/x86_64/mhwdfs]
same issue with kde
==> Done [Distribution: Release 21.2rc1 Codename Qonos]
-> Configuring polkit user rules
--> Restoring [/var/lib/manjaro-tools/buildiso/kde/x86_64/livefs/etc/pacman.conf] ...
--> overlayfs umount: [/var/lib/manjaro-tools/buildiso/kde/x86_64/livefs]
--> umount overlayfs: [/var/lib/manjaro-tools/buildiso/kde/x86_64/livefs]
-> Cleaning [livefs]
==> Done [Live installation] (livefs)
--> Loading Packages: [Packages-Mhwd] ...
==> Prepare [drivers repository] (mhwdfs)
--> overlayfs mount: [/var/lib/manjaro-tools/buildiso/kde/x86_64/mhwdfs]
--> Restoring [/var/lib/manjaro-tools/buildiso/kde/x86_64/mhwdfs/etc/pacman.conf] ...
Root : /
Conf File : /etc/pacman.conf
DB Path : /var/lib/pacman/
Cache Dirs: /var/cache/pacman/pkg/
Hook Dirs : /usr/share/libalpm/hooks/ /etc/pacman.d/hooks/
Lock File : /var/lib/pacman/db.lck
Log File : /var/log/pacman.log
GPG Dir : /etc/pacman.d/gnupg/
Targets : linux515-bbswitch linux515-broadcom-wl linux515-zfs zfs-utils linux515-headers zfs-dkms libva-intel-driver libva-mesa-driver libva-vdpau-driver lib32-libva-vdpau-driver libxaw libxpm libxvmc mesa-vdpau lib32-mesa-vdpau lib32-libxvmc lib32-primus linux515-nvidia-390xx linux515-nvidia-470xx linux515-nvidia nvidia-390xx-utils nvidia-470xx-utils libxnvctrl-470xx nvidia-utils libxnvctrl lib32-nvidia-470xx-utils lib32-nvidia-390xx-utils lib32-nvidia-utils opencl-mesa open-vm-tools primus qemu-guest-agent bumblebee nvidia-prime gtkmm3 spice-vdagent virtualbox-guest-utils vulkan-radeon lib32-vulkan-radeon vulkan-intel lib32-vulkan-intel xf86-input-vmmouse xf86-video-amdgpu xf86-video-ati xf86-video-dummy xf86-video-fbdev xf86-video-intel xf86-video-nouveau xf86-video-openchrome xf86-video-sisusb xf86-video-vesa xf86-video-vmware xf86-video-voodoo
:: Synchronizing package databases...
core 168,9 KiB 408 KiB/s 00:00 [#####################################################] 100%
extra 1917,3 KiB 285 KiB/s 00:07 [#####################################################] 100%
community 6,8 MiB 329 KiB/s 00:21 [#####################################################] 100%
multilib 176,5 KiB 238 KiB/s 00:01 [#####################################################] 100%
error: target not found: libxnvctrl-470xx
error: target not found: libxnvctrl-470xx
-> Copying mhwd package cache ...
building file list ... done
sent 17 bytes received 12 bytes 58.00 bytes/sec
total size is 0 speedup is 0.00
==> ERROR: File '/var/lib/manjaro-tools/buildiso/kde/x86_64/mhwdfs/opt/mhwd/pkg/*pkg.tar*' not found.
==> No packages modified, nothing to do.
==> ERROR: A failure occurred in make_image_mhwd().
Aborting...
--> overlayfs umount: [/var/lib/manjaro-tools/buildiso/kde/x86_64/mhwdfs]
--> umount overlayfs: [/var/lib/manjaro-tools/buildiso/kde/x86_64/mhwdfs]
[nls@lap ~]$
Thanks for your help.