Can't install linux

[Jma]

Yep that gives some info but unfortunately doesn't say ram size.

I found another one on the net , lspci -vnn ...... is appears the video is 256M, gee I don't know about that one.

Interesting...might be a difference in Desktop environment thing, using XFCE the output I get has the bottom line of this:

resources: irq:36 memory:e0000000-efffffff ioport:3000(size=256) memory:f0300000-f033ffff memory:c0000-dffff

Bit in brackets I believe is the memory size of mine.
As you probably discovered when looking there are many different ways of getting this info.
If you want a GUI program that gives all sorts of system information install the program HardInfo, some systems come with it already installed but have it named differently in the Menu, on mine (MX-17) it's called System Profiler and Benchmark.
To see if it's installed try entering hardinfo in Terminal.

I found Virtualbox too problematic over the years & now use QEMU instead.