How to properly install Ubuntu server?

Question

linux

Any attempt to install ubuntu server throws the error "Unsuccessful completion of the installation step "Select and install software"". In the terminal I saw the following error "Some packages cannot be installed. Perhaps you are asking for the impossible, or you are using an unstable version of the distribution, where the packages you requested have not yet been created or have been removed from Incoming". There are also four messages like "curl : Depends on libcurl3-gnutls (= 7.47.0-1ubuntu2.2) but it won't be installed". Well, at the end of the message "Unable to fix errors, you have delayed (held) broken packages." What to do in such a situation? Is it possible to skip this installation step, and then install everything you need, or is it necessary to solve this problem at the installation stage? Help, can anyone come across

Answer 1

put the north clean without additional functions, and then install the packages via aptitude.
variant 2: the disk image was downloaded or recorded crookedly.
option 3J try netinst though it will pull all packages from the Internet.