Do you still have this problem today?
Because I can't update my both Whonix templates and my 29-30 Fedora's and Debian-9.
Fedora-29 from system Dom0 tray error message:
Updating fedora-29
Error on updating fedora-29: Command '['sudo', 'qubesctl', '--skip-dom0', '--targets=fedora-29', '--show-output', 'state.sls', 'update.qubes-vm']' returned non-zero exit status 20
b'fedora-29:\n ----------\n ID: dnf list updates --refresh >/dev/null\n Function: cmd.run\n Result: False\n Comment: Command "dnf list updates --refresh >/dev/null" run\n Started: 18:14:55.741878\n Duration: 37231.142 ms\n Changes: \n ----------\n pid:\n 1159\n retcode:\n 1\n stderr:\n Failed to synchronize cache for repo \'qubes-vm-r4.0-current\'\n Error: Failed to synchronize cache for repo \'qubes-vm-r4.0-current\'\n stdout:\n ----------\n ID: update\n Function: pkg.uptodate\n Result: True\n Comment: System is already up-to-date\n Started: 18:15:34.881227\n Duration: 35555.189 ms\n Changes: \n \n Summary for fedora-29\n ------------\n Succeeded: 1 (changed=1)\n Failed: 1\n ------------\n Total states run: 2\n Total run time: 72.786 s\n'
From Fedora-29 terminal:
[user@fedora-29 ~]$ sudo dnf update
Qubes OS Repository for VM (updates) 0.0 B/s | 0 B 00:30
Failed to synchronize cache for repo 'qubes-vm-r4.0-current'
Error: Failed to synchronize cache for repo 'qubes-vm-r4.0-current'
From Fedora-30 terminal:
[user@fedora-30 ~]$ sudo dnf update
Qubes OS Repository for VM (updates) 0.0 B/s | 0 B 00:30
Failed to synchronize cache for repo 'qubes-vm-r4.0-current'
Error: Failed to synchronize cache for repo 'qubes-vm-r4.0-current'
From Debian-9 terminal:
user@debian-9:~$ sudo apt-get update
Hit:1
http://ftp.debian.org/debian stretch-backports InRelease
Ign:2
https://cdn-aws.deb.debian.org/debian stretch InRelease
Hit:3
https://cdn-aws.deb.debian.org/debian-security stretch/updates InRelease
Hit:4
https://cdn-aws.deb.debian.org/debian stretch Release
Err:6
https://deb.qubes-os.org/r4.0/vm stretch InRelease
Operation timed out after 120000 milliseconds with 0 out of 0 bytes received
Reading package lists... Done
W: Failed to fetch
https://deb.qubes-os.org/r4.0/vm/dists/stretch/InRelease Operation timed out after 120000 milliseconds with 0 out of 0 bytes received
W: Some index files failed to download. They have been ignored, or old ones used instead.
And like I already said the same problem with Whonix both templates.