It was failed to build sagitta branch from vyos-build.
E: Unable to locate package linux-image-6.6.9-amd64-vyos
E: Couldn't find any package by glob 'linux-image-6.6.9-amd64-vyos'
E: Couldn't find any package by regex 'linux-image-6.6.9-amd64-vyos'
E: An unexpected failure occurred, exiting...
P: Begin unmounting filesystems...
P: Saving caches...
Reading package lists...
Building dependency tree...
Reading state information...
I: Checking if packages required for VyOS image build are installed
build/config
I: Cleaning the build workspace
I: Setting up additional APT entries
I: Configuring live-build
I: Starting image build