autoinstall 20.04 with 2G (fails) and 4G (works) install netboot

[Jerry Geis]

On Tue, Apr 6, 2021 at 2:02 PM Jerry Geis <jerry.geis at gmail.com> wrote:

> So trying to find why my 2G ram (does not autoisntall) and the 4G does.
>
> ubuntu-server kernel: [   40.237245] kworker/7:1 invoked oom-killer:
> gfp_mask=0xdc0(GFP_KERNEL|__GFP_ZERO), or|  ubuntu-server
> subiquity_log.2170[2380]:   "LABEL": "",
>
>   ubuntu-server kernel: [   40.237250] CPU: 7 PID: 225 Comm: kworker/7:1
> Not tainted 5.4.0-65-generic #73-Ubuntu|  ubuntu-server
> subiquity_log.2170[2380]:   "LOG-SEC": "512",
>
>   ubuntu-server kernel: [   40.237251] Hardware name: QEMU Standard PC
> (Q35 + ICH9, 2009), BIOS 1.13.0-1ubuntu1.|  ubuntu-server
> subiquity_log.2170[2380]:   "MAJ:MIN": "252:0",
>
>   ubuntu-server kernel: [   40.237282] Workqueue: events
> drm_fb_helper_dirty_work [drm_kms_helper]
>
>
> I found this in the syslog on the 2G ram install side.
> I am trying to do the netboot and specify the ramdisk_size=1500000 and
> root=/dev/ram0 on my kernel line along with ip=dhcp and
> url=path_to-_live_server.
>
> This all works in 4G ram - but 2G ram does not.  I think it's supposed
> to.
> What else can I look at to get autoinstall for 2G ram to work ???
>
>
> Jerry
>


This is a MAJOR BUMMER!
https://louwrentius.com/understanding-the-ubuntu-2004-lts-server-autoinstaller.html
This says teh new fancy installer requires 3G!
That is 0 help for all those systems out there with 2G ram.

That is what PYTHON does for you -nothing.   How on earth can I get around
a 3G limit. as I mentioned I have systems out there I want to replace that
ONLY have 2G ram.

I'm not PXE booting - I'm just netbooting.

Thanks,

Jerry
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