[installer] Trying to edit the generated config.scm crashes the installer

While testing the installer built from the current master branch, we

found that trying to edit the generated config.scm crashes the

installer. Screenshot attached.

I built the installer like this:

$ guix environment guix -- ./pre-inst-env guix system image -t uncompressed-iso9660 --label="GUIX_x86_64-linux-leo" --system=x86_64-linux gnu/system/install.scm

I created a disk to install it with QEMU:

$ qemu-img create -f qcow2 guix-system.img 50G

And I ran the installer like this:

$ qemu-system-x86_64 -m 1024 -smp 1 -enable-kvm -nic user,model=virtio-net-pci -boot menu=on,order=d -device virtio-blk,drive=myhd -drive if=none,file=guix-system.img,id=myhd -drive media=cdrom,file=my-image.iso

I proceeded to select the default answers for all questions: no desktop,

the default networking-related services, DHCP network provider, guided

partitioning using the entire disk.

At the end, it shows the generated configuration, and crashes when I

select "edit". Unfortunately, the installer becomes unresponsive when

this happens, so I cannot scroll down and read the entire backtrace.

block 53214 with 53544

block 53214 with 53541

Hello Leo,

I followed the exact same steps on Guix commit

4943ac86e4f95a2e14fd209f3fdaac74a0d9ca2e and could not reproduce the

issue. It was possibly fixed by the wip-harden-installer branch

merge. Could you please confirm that you have the same behaviour

locally?

Thanks,

Mathieu

On Wed, Feb 02, 2022 at 06:23:04PM +0100, Mathieu Othacehe wrote:

Indeed, it must have been fixed by the recent changes from that branch.

Thanks!