Must have missed the original post end of January, and did not pay attention to the time stamp when answering now ....

works now, used --no-install-recommends, that keeps pipewire.

i don't think there is any difference in the involved packages and procedures.

is the linux installation also an uefi install? if not, it won't work.

anyhow, i only use the boot override key to select the system to be booted on my uefi pcs. my linux systems are encrypted, and osprober does not find encryted systems.

well, is there any package that is not in main and non-free-firmware you want to install?

the sources.list is missing contrib non-free.

Scan this forum for threads about this issue ...

I remember reading that thread too.

Ventoy stick booted, Secure Boot off, Chimaera netinstall started in efi mode.

When the partitioning is started and waits for the method to partition, Alt-F2 to the 2nd console, mount tells me:
rootfs, tmpfs, sysfs, devtmpfs, devpts, and then the interesting things:
/dev/sde2 on /cdrom type iso9660 (ro,relatime,nojoliet,check=s,map=n,blocksize=2048,iocharset=utf8) 
none on /sys/firmware/efi/efivars type efivarfs (rw,relatime)

As mentioned in the private mail: I only had problems when skipping the topic "Loading additional modules" in the expert installer mode. I have got full choice, I am using manual partitioning and I am encrypting all my installations (with very few exceptions in a VM).

Hope that helps.

Hi Ralph,

my Ventoy stick is shown as this:

# fdisk -l /dev/sdg
Disk /dev/sdg: 114,61 GiB, 123060879360 bytes, 240353280 sectors
Disk model:  SanDisk 3.2Gen1
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0xf078671f

Device     Boot     Start       End   Sectors   Size Id Type
/dev/sdg1  *         2048 240287743 240285696 114,6G  7 HPFS/NTFS/exFAT
/dev/sdg2       240287744 240353279     65536    32M ef EFI (FAT-12/16/32)

I can boot the older Devuan releases as well in efi as in legacy mode and install them from the boot of the iso, the first language selection dialogue until the final eject media, they are fully installed afterwards. No limits.

For sure remove the AMD Catalyst driver completely. Its outdated and useless.

Maybe you simply do a re-installation. If recklesswing is right support by the kernel is enough. Nevertheless, on first boot watch out for messages about missing firmware. If such messages appear, add non-free-firmware to your sources.list, do an apt update and install firmware-amd-graphics. I have got 5800 cards that require firmware.

PS: you say you got that card working on Debian Bookworm? Then there is no reason why it shouldn't work in Daedalus. Uses the same packages as Bookworm.

How is that card listed by lspci?

Is this your first Daedalus installation? The fsmithreds suggestion is very relevant.

AMD cards are normally fully supported by kernel and firmware-amd-graphics.

Devuan Daedalus is not compatible to Ventoy. Does not work.

Use dd or cp to write the image to an empty stick, that works fine.

Forget about this idea. This was promoted for a while by Intel, they also had a product for that, and Seagate also had some hard disks with SSD cache on board in the portfolio, but never was really adopted in a bigger scale. This is sort of dead by now.

If Debian does Devuan should also do. Devuan is Debian - systemd packages + replacements. Kernel and drivers are the same.