On Mon, Mar 02, 2026 at 11:12:46AM +0000, Stevan Tiefert wrote:
> Hello,
>
> If I download any of the 6.1.0 ISOs (doesn't matter if dvd, netinstall or server) and burned on a DVD and try to install devuan I got on machines with and without UEFI, errors like
>
> LABEL=DEVUAN610: Can't lookup blockdev
> LABEL=Ventoy: Can't lookup blockdev
> failed to mount the cdrom
> Starting emergency shell
>
> and then I got BusyBox.
>
> I thought that Ventoy had something to do with USB-Sticks and not with ISOs, isn't it?

When you write "burned on a DVD" I'm guessing you mean something else
than simply copying the ISO onto the initial blocks of the DVD, and
that that resulted in something else than a true copy of the ISO
bytes.

I think that is the reson for your troubles; basically your "burned
DVD" is almost right, but the burning didn't preserve the media label,
so the early stage boot up of the installer fails to find a partition
that is duly lablled "DEVUAN610" (as it should be).

The bootup then tries for a second setup, to find a parition labelled
"Ventoy" which if found, would be expected to be an extfat filesystem
holding a copy of the ISO file itself (not a partition). That's an
alternative install story where you see a trace of that attempt even
though that story is not relevant in your case.

So in short, you'll need to copy the ISO onto a DVD media, or onto a
USB disk media, or onto an SDCARD media, or onto a harddisk media,
such that the media holds an exact, byte-by-byte copy of the ISO file
on its blocks 0 and up. The sticking point is that the iso9660
filesystem gets presented as a partition that is labelled "DEVUAN610".

Ralph.