Hello,

Philipp Klaus Krause, le mer. 25 févr. 2026 12:38:02 +0100, a ecrit:
> I downloaded debian-sid-hurd-amd64-NETINST-1.iso,

[...]

> But the installer then tells me "Your installation media couldn't be
> mounted. When installing from CD-ROM, this probably means that the disk was
> not in the drive. If so you can insert it and try again."
> 
> Immediately before, I briefly see a message "/hurd/iso9660fs: Could not find
> valid superblock".

Have you checked the md5 of the file, to make sure you didn't get
corruption?

Jose Luis Alarcon Sanchez, le mer. 25 févr. 2026 14:27:02 +0100, a ecrit:
> El Wed, 25 Feb 2026 12:38:02 +0100
> Philipp Klaus Krause <[email protected]> escribió:
> > I want to install Debian Hurd in a VM.
> > I downloaded debian-sid-hurd-amd64-NETINST-1.iso, and roughly
> > followed the instructions at 
> > https://www.gnu.org/software/hurd/hurd/running/qemu.html, except: I 
> > created a 24G qcow2 disk image, gave the VM 8G of RAM, chose C
> > instead of English as language in the installer:
> > 
> > qemu-img create -f qcow2 disk.qcow2 24G
> 
> Why .qcow2 and not .img?

That won't hurt, it's only qemu that will care.

> > qemu-system-x86_64 -m 8G -drive cache=writeback,file=disk.qcow2
> > -cdrom debian-sid-hurd-amd64-NETINST-1.iso -net nic,model=rtl8139
> > -net user -smp 1
> 
> I am not sure that GNU/Hurd can manage 8 Gigas of RAM.

The amd64 kernel does.

Samuel

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