I'm on Trisquel 9.
I get the same "unable to locate" and "package not found" with
'linux-image-amd64'.
Whereas 'linux-image-generic' yields results.
apt policy linux-image-generic
linux-image-generic:
Installed: 4.15.0.112.100+9.0trisquel5
Candidate: 4.15.0.112.100+9.0trisquel5
Version table:
*** 4.15.0.112.100+9.0trisquel5 500
500 http://ftp.acc.umu.se/mirror/trisquel/packages
etiona-updates/main amd64 Packages
100 /var/lib/dpkg/status
4.15.0.66.68+9.0trisquel5 500
500 http://ftp.acc.umu.se/mirror/trisquel/packages etiona/main amd64
Packages
