[SATLUG] diskless ramdisk booting

Craig sargonemail at gmail.com
Wed Jul 27 16:02:35 CDT 2016


Methods for creating a mount point for /var and /tmp in RAM :
http://www.satlug.org/pipermail/satlug/2012-July/066579.html

Craig

On Wed, Jul 27, 2016 at 3:53 PM, Craig <sargonemail at gmail.com> wrote:

> *> Borries Demeler, d*emeler at biochem.uthscsa.edu on
>
> *Wed Jul 27 11:21:15 CDT 2016> wrote:*> We managed to boot from nfsroot, but we really need a RAM disk for /var and /etc
> > for each node to be different.
> >
> > Yes, you are correct, the init switching is what we have not yet figured out :-)
> ....
>
> Ummm... ok, based on this article & initial article, sounds like some terminology is getting
> in the way.  So going to sum up what I think is being attempted.
>
> The remote node initiates a pxe boot off of the nfs server.  The nfs server setsup an OS instance
> on the server side (per remote node request) which is remotely accessed by the remote node (not
> certain if the user home directory resides on nfs server, some other server, or local machine).
> The remote node mini-OS can be obtained either via pxe or local HD/floppy/usb/cd/dvd from pxe server.
> Mini-OS is run entirely in RAM.
>
> The mini-OS running in RAM is used to (gpxe, grub2, uboot/netboot):
> ?configured to access a complete distribution running on a different box,
>  the traditional terminal server, but with access to a remote VM instance.
>
> ?configured to access specific app(s) running remotely on a different box
>  where apps are run as a container/docker instance on the server side.
>
> ?contains the environment to run a specific app or apps on current box,
>  where apps are run as a container/docker instance locally.
>
> ?setup the complete distribution to run in RAM or install to box,
>  where live image is pulled from server
>  e.g. netboot.xyz but with the nfs server as the permenant storage point for the user
> home directory
>
> ?? other approach(es) not related to traditional terminal service(s)
>
> Craig
>
>


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