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#1 Yesterday 09:20:57

chomwitt
Member
From: Greece
Registered: 2019-09-24
Posts: 219  
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Trying excalibur desktop-live.iso in qemu i get a blank screen

Host: Devuan Excalibur

$ qemu-img create -f qcow2 devuan-excal-live-storage.qcow2 10G

$ qemu-system-x86_64 -enable-kvm -m 2048 -nic user,model=virtio -drive file=devuan-excal-live-storage.qcow2,media=disk,if=virtio  -cdrom install-images/devuan_excalibur_6.1.1_amd64_desktop-live.iso

I see the boot menu and i let it boot with its default.

If i choose fail safe it proceeds ok and i login with username : devuan.


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#2 Yesterday 11:05:56

fsmithred
Administrator
Registered: 2016-11-25
Posts: 2,915  

Re: Trying excalibur desktop-live.iso in qemu i get a blank screen

I get the same result when I use your command. Remove the '-nic user,model=virtio' and it works.

Note: I did not include the '-drive file=...' part in my test, so I don't know if that would also need to be changed. I use raw disk images and don't use virtio. e.g.  -drive file=${image_file},format=raw

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#3 Yesterday 20:51:10

chomwitt
Member
From: Greece
Registered: 2019-09-24
Posts: 219  
Website

Re: Trying excalibur desktop-live.iso in qemu i get a blank screen

qemu-system-x86_64 -enable-kvm -m 2048   -cdrom install-images/devuan_excalibur_6.1.1_amd64_desktop-live.iso

works again only on failsafe option.


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#4 Today 00:41:03

fsmithred
Administrator
Registered: 2016-11-25
Posts: 2,915  

Re: Trying excalibur desktop-live.iso in qemu i get a blank screen

I don't know the solution, but you could try the options in the failsafe boot one at a time, or eliminate them one at a time until you find the one that makes the difference. I would start with just adding 'nomodeset' to the default boot command. That one is often useful to eliminate black screen.

BETTER SOLUTION:
I used your command and added '-vga qxl' and the desktop comes up.

qemu-system-x86_64 -enable-kvm -m 2048 -nic user,model=virtio -vga qxl -cdrom isos/devuan_excalibur_6.1.1_amd64_desktop-live.iso

Make sure you have xserver-xorg-video-qxl installed.

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