[indiana-discuss] Memory size requirement of Indiana

[Aubrey.Li]

On Nov 8, 2007 12:32 PM, Moinak Ghosh <Moinak.Ghosh at sun.com> wrote:
>
> Sanjay Nadkarni wrote:
> > Aubrey Li wrote:
> >
> >> On Nov 8, 2007 10:12 AM, Sanjay Nadkarni <Sanjay.Nadkarni at sun.com> wrote:
> >>
> >>
> >>> Shawn Walker wrote:
> >>>
> >>>
> >>>> On 07/11/2007, Aubrey Li <aubreylee at gmail.com> wrote:
> >>>>
> >>>>
> >>>>
> >>>>> One of my colleagues complains Indiana can't install on his 256M-memory box.
> >>>>> He said the Indiana installer demands at least 512M memory, is that true?
> >>>>> If so, can this issue be worked around?
> >>>>>
> >>>>>
> >>>>>
> >>>> It's true for now; I believe there is work to reduce it in the future.
> >>>>
> >>>>
> >>>>
> >>> To be precise, there may be some work to reduce the size of microroot
> >>> which will enable a live CD to boot on systems with less 512MB.  However
> >>> there are no specific  plana on making it  install on 256 MB systems.
> >>> However, that does not preclude someone from creating a new distro
> >>> (using the distro constructor + some work:-) that would address this
> >>> class of systems.
> >>>
> >>>
> >>>
> >> So we'll boot on systems with less 512MB memory by livdCD. But we can't install.
> >> This doesn't make any sense!
> >>
> >> Is there any reason why 256MB systems doesn't work? The whole CD is just ~700MB,
> >> what eat up the available memory?
> >>
> >>
> > I am not sure I see the connection between the size of the CD and memory
> > size.  The data on the CD is in a compressed format.  One boots a
> > mircoroot.  A number of files such as headers, lint libraries etc and
> > never expanded.   The disk space on the installed system  is about 2GB.
> > On the installed system ZFS is  the default file system.  This  puts
> > more memory pressure and the overall system behavior will not be very
> > good.  One can probably get around this tuning the ZFS ARC, but that is
> > not the direction we are aiming for in Indiana.
> >
>
>    To add to that. The current microroot size is mainly because
>    of the presence of unused amd64 binaries in the ramdisk.
>    Ideally the 32 and 64 bit microroots should be separate.
>
>    As Sanjay states there is no connection between CD size and
>    memory usage. BeleniX has a DVD image that still uses only
>    60MB sized ramdisk.
>
I of course know there is no connection between CD size and memory usage.
I just wonder all of SXCE, BeleniX Nexenta are ok with 256M system,
why indiana does not.
When I said It has ~700M size, I mean it shouldn't include more new
package need to be loaded and occupy memory.

-Aubrey
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