I tried to do a fresh install with the Lubuntu daily build, but i did not configure network. This message came from Calamares:
Comando apt install -y --no-upgrade -o Acquire::gpgv::Options::=--ignore-time-conflict shim-signed finalizó con código de salida 100. Salida WARNING: apt does not have a stable CLI interface. Use with caution in scripts. Reading package lists... Building dependency tree... Reading state information... The following additional packages will be installed: mokutil shim The following NEW packages will be installed: mokutil shim shim-signed 0 upgraded, 3 newly installed, 0 to remove and 0 not upgraded. Need to get 20.9 kB/779 kB of archives. After this operation, 3756 kB of additional disk space will be used. Err:1 http://archive.ubuntu.com/ubuntu cosmic/main amd64 mokutil amd64 0.3.0-0ubuntu5 Temporary failure resolving 'archive.ubuntu.com' Get:2 cdrom://Lubuntu 18.10 _Cosmic Cuttlefish_ - Alpha amd64 (20180814) cosmic/main amd64 shim amd64 13-0ubuntu2 [440 kB] Get:3 cdrom://Lubuntu 18.10 _Cosmic Cuttlefish_ - Alpha amd64 (20180814) cosmic/main amd64 shim-signed amd64 1.36+13-0ubuntu2 [318 kB] E: Failed to fetch http://archive.ubuntu.com/ubuntu/pool/main/m/mokutil/mokutil_0.3.0-0ubuntu5_amd64.deb Temporary failure resolving 'archive.ubuntu.com' E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?
ProblemType: Bug
DistroRelease: Ubuntu 18.10
Package: calamares 3.2.1-1
ProcVersionSignature: Ubuntu 4.17.0-6.7-generic 4.17.9
Uname: Linux 4.17.0-6-generic x86_64
ApportVersion: 2.20.10-0ubuntu7
Architecture: amd64
CasperVersion: 1.394
CurrentDesktop: LXQt
Date: Tue Aug 14 17:32:29 2018
LiveMediaBuild: Lubuntu 18.10 "Cosmic Cuttlefish" - Alpha amd64 (20180814)
SourcePackage: calamares
UpgradeStatus: No upgrade log present (probably fresh install)
This was fixed a bit ago.