A couple of appendings from my experience(though I have not resolved it yet):
1. In some installer apps(I am using Mojave 10.14.5 from appstore), the folder that contains the necessary files is named as SharedSupport rather than SharedResources as
@Ylx mentioned.
2. Actually, all the space and slash hassles can be dodged by typing a few letter and press tab for the terminal to auto-complete for you.
3. You can also find several installers in /Install\ macOS\ Mojave.app/Contents/MacOS/, they seem also do the main installing stuff.
4. If you run into server issues when running either the installer I mentioned or the one @
yourgamesbeover said, some msg like: cannot link to some verification/restore server, try to have internet access. If you are like me having an Intel wireless network card, find a wired internet you can use.
Ok, now the problems I still have are:
1. Running the ./startinstall command gives me a breakdown after 80% or so preparation.
2. Running the installer with GUI works fine, but afterwards it asks for a reboot and after the reboot things still the same as the beginning.
Things I have already tried:
1. Format the target drive to be APFS.
2. Using the clover on my SSD rather than the one in the portable drive.
3. Redownload a third-party image and burn it to the portable drive using the command `createbootablemedia` from the installer.
I don't have a screwdriver at hand and that is why I want to stick to the method from this thread, rather plug in and off my HDD like said in other threads. If anyone could shed some light on my situation, I will appreciate it very much.