I wonder if it's possible to install Ubuntu without CD or USB flash drive because I can't use any.
My laptop's keyboard doesn't work properly so I'm using one with USB and my laptop has only two USB ports and one of them doesn't work with keyboard and USB flash drive(but works well with a mouse, that's another problem) because of this I need to use USB drive and keyboard same time but I can't.
I tried using Unetbootin but it gives me an error when booting, that ubnldr.mbr file is missing. I also tried a lot of other ways but none of them worked, for example, I created and then formated a new drive with FAT32 and copied contents of the iso file in it but after booting up my laptop it didn't work.
I'm using Windows 10. I have seen somewhere in ther internet that ubnldr.mbr file is missing error is caused by secure-boot but I have disabled it.
Finally, my question is: Is it possible to install ubuntu without a USB flash drive or CD and if it's, how?