Minimum HW requirements for running Ubuntu Core

device
1

I am looking for info on the minimum / mandated requirement of HW for running Ubuntu Core image:

  1. CPU min freq
  2. RAM
  3. Storage

if any other.

2

Ubuntu Core Docs - “Ubuntu Core and Ubuntu”

1 Like
3

Will the requirement in the chart be same for UC 16/18 and 20?

4

Good point, I’d assume that it is the same for all UCs.

5

my guess would be that disk footprint has gone down with each core release but memory footprint might have gone up. plus i think in core20 the kernels snaps are bigger (more modules and features) but growing is the nature of the kernel anyway (at least for generic kernels like ubuntu uses them) :slight_smile:

6

Thanks @kromerf @ogra
I have a ARM based device with 256MB Flash, 1GB RAM. So wanted to check the feasibility of UC on it.

7

256MB flash will be tight … but if you put your rootfs onto USB/SD/MMC it should work … (i mean … 256MB with a device customized kernel snap (as cut down as possible) might probably be bootable, but you wont be able to install any app snaps on this)

here is an example of a multi-volume image gadget.yaml (builds two img files, one for system-boot, the other for writable to put it on external media):

https://people.canonical.com/~ogra/snappy/appliances/fabrica/snaps/gadget.yaml-dual

8

Thanks for the pointer. @ogra This is an existing HW platform so no changes possible. But will make a note of this approach for future use if needed.