Hi Danny and Ludovic, Danny Milosavljevic <dan...@scratchpost.org> writes:
> After the change, I get the following on Hydra > <https://hydra.gnu.org/build/3253608/log/raw>: > > --------------------------------------------------------------------------- > @ build-started /gnu/store/scnqgfc3k4434h3gch22hnh0z8qdbvdb-disk-image.drv - > x86_64-linux > /var/log/guix/drvs/sc//nqgfc3k4434h3gch22hnh0z8qdbvdb-disk-image.drv.bz2 > environment variable `PATH' set to > `/gnu/store/5ka9gmcwcj2919q0cj0wkjng058lwrgq-qemu-minimal-3.0.0/bin:/gnu/store/5s2nib1lrd2101bbrivcl17kjx1mspw6-coreutils-8.30/bin' > creating raw image of 1024.00 MiB... > Formatting '/gnu/store/4yp6s4jlq2frb2jqzd7q3kp99vzmnpm5-disk-image', fmt=raw > size=1073741824 > Could not access KVM kernel module: Permission denied > qemu-system-x86_64: failed to initialize KVM: Permission denied This indicates that /dev/kvm on hydra.gnunet.org has permissions that prevent the guix build user from accessing it. I raised this issue long ago (2015) on the guix-sysadmin mailing list. In that message, I noted that on hydra.gnunet.org, /dev/kvm has mode 0600 and is owned by root, which caused our disk image derivations to fail. At the time, Ludovic chmod'd /dev/kvm, and mentioned that he had tried to make this persistent via /etc/udev/rules.d/70-persistent-net.rules, but that for some reason that didn't seem to work, possibly because it was being overridden by another rule or startup script. As far as I know, we never implemented a proper fix. Ludovic, for now, can you chmod it again? Thanks, Mark