How much MM & flash space needed?

[jbpark03]

Hi,

I'm considering to install Archlinux ARM on an average ARMv6 CPU.
Additionally, I want to use Java with JDK 8 for ARM.
Considering my case, can anyone give me a rough idea on how much main memory and aux' memory(either flash or SSD) would it require?
Somewhere I learned that JRE and Swing require about 60MB for MM and flash, for your reference.
Thank you,

JB

[Awebb]

Most base images default to 2GiB. After installing some small tools, X, a small tiling WM, a couple of browsers (for testing), python3 and xbmc, Arch itself is now around 1.5GiB.

But you can find this out yourself. Download and extract an image. This will be the size of the installed Arch.

[jbpark03]

Thank you Awebb,

Recently, I read a book "Linux for Embedded and Real-time..." by Doug Abbot. In the book, he wrote, "it is not difficult to produce a fully functional Linux system occupying no more than 2 MB of flash memory."
So, by the book, the Linux system itself is negligible in choosing the size of flash. Therefore, 2GB of flash would be a possible configuration, right?

JB

PS. But, what about the RAM size?

[WarheadsSE]

Well if you don't install KDE, you don't exactly need much.

[moonman]

You can fit things into 2mb if you strip down the kernel to a bare minimum, use uclibc instead of glibc, use Os compiler optimizations and then put everything into squashfs readonly filesystem with some crippled tools (busybox). That being said, we dont use any of the above because uclibc is not fully compatible with glibc and some thiings just won't compile or will not work correctly, Os optimizations are good for size but not for performance and squashfs is a readonly. You will likely see those used in an embedded firmwares when a particular firmware will only work with some particular hardware and nothing else. ArchLinuxARM is a full blown operating system so expect roughly the same amount of space used as on x86.