I have a Lubuntu persistent USB install. I started using it due to problems with my hard drive (Samsung 850 Evo) which used to have Ubuntu installed. My computer (MacBook Pro 9,2) had OSX but after a filesystem corruption I installed Ubuntu. Ubuntu became unbootable shortly after (literally a couple reboots). I formated the disk and decided to start using the live USB with persistence enabled.
I can't install more packages because I have almost no space left on my 4GB USB. I can perfectly mount the hard drive and store files there, read/write, etc. Is there a way to install the packages into the hard drive and turn /usr to a symlink to /mnt/mydrive ?
I don't care if it's a bad practice or something like that. I would like to know if it's feasible and if so, some instructions and/or recommendations on how to achieve it.