Ludovic Courtès <l...@gnu.org> writes:
> Hi, > > Ricardo Wurmus <rek...@elephly.net> skribis: > >> I’m trying to build a more recent VM image than 1.4.0. The 1.4.0 qcow2 >> image that’s available for download on the Guix website boots fine, but >> any image created with a current Guix cannot be booted. >> >> I’m on Guix commit be5bec47f7942a5e4d2a30eadd9a6fa4c715e88b. >> >> I ran >> >> ./pre-inst-env guix system image -t qcow2 \ >> doc/os-config-lightweight-desktop.texi >> >> to generate the VM image and then I used >> >> qemu-system-x86_64 -enable-kvm \ >> -m 4096 -monitor stdio \ >> -drive file=/tmp/guixvm.qcow2,id=myhd \ >> -vnc :1 >> >> and connected Remmina to :1. >> >> The fan spins up to top speed and I see “Booting from Hard Disk…” with >> no progress whatsoever. > > There have been recent changes in this area: > > 6bd17a0806 image: Do not allow BIOS bootloader and GPT. > e5ed1712da image: Introduce the mbr-hybrid-raw image type. > > The latter changes the default image type. Before that, there was: > > d57cab7641 image: Add mbr-raw-image-type and use by default. > > I’m not sure if this could explain the problem. It’s due to the bootloader. This field from the bare bones template works: (bootloader (bootloader-configuration (bootloader grub-bootloader) (targets '("/dev/sdX")))) but this from the desktop template doesn’t: (bootloader (bootloader-configuration (bootloader grub-efi-bootloader) (targets '("/boot/efi")))) The manual for “guix system” gives a somewhat complicated invocation that I only found out about later: image=$(guix system image --image-type=qcow2 \ gnu/system/examples/lightweight-desktop.tmpl) cp $image /tmp/my-image.qcow2 chmod +w /tmp/my-image.qcow2 qemu-system-x86_64 -enable-kvm -hda /tmp/my-image.qcow2 -m 1000 \ -bios $(guix build ovmf)/share/firmware/ovmf_x64.bin I haven’t tried it yet, but I assume that providing this extra “-bios” option would fix it. It wasn’t necessary before, though, and I think it’s an inconvenient complication when running Guix VMs. Perhaps an example invocation of qemu-system-* could be added as a comment to the templates? -- Ricardo