[ug-bosug] Belenix 0.7 can boot from RAM

sham pavman shampavman.cg at gmail.com
Mon May 5 08:46:01 PDT 2008 

Hi all,

Just to point out,regarding the installation!!!
I understand that used to take about 20mins for the entire installation and
this is what the project was aimed to counter!! :)

Regards
Shampavman

On Mon, May 5, 2008 at 5:49 PM, Moinak Ghosh <moinakg at gmail.com> wrote:

> On Mon, May 5, 2008 at 7:05 AM, Ajey Gore <ajey at thoughtworks.net> wrote:
> > No.. I am not. Basically, What I did not realize that mail did not go
> >  throught completely.
> >
> >
> >  That means we need 160 GB Ram :-)
> >
> >  If we have to run one of the build and deployment environment of live
> CD.
> >
> >  Or if want to do a LOT of stuff on high computing. Then I do not think
> that
> >  you can eventually do everything off normal 2 - 4 GB Ram.
> >
> >  It was not a criticism, its kind of realization that whats happening in
> >  other world. Google already has almost everything in Ram.
> >
> >
> >  On 5/4/08 3:56 PM, "Sriram Narayanan" <sriramnrn at gmail.com> wrote:
> >
> >  > What does "That means we need 160 GB Ram :-) " mean ?
> >  >
> >  > Other folks on this list are like me - we take things literally and
> >  > would assume that you have either mis understood or are criticizing
> >  > this notion.
> >  >
> >  > -- Ram
>
>
>   Just to clarify. This is not about running you entire system off RAM.
>   This is about running a 700MB LiveCD off the RAM. So the minimum
>   memory requirement is 1GB of RAM.
>
>   This capability is very useful in order to reduce execution and
> installation
>   times when using a LiveCD since access from CDROM is always slow.
>   We tested this today on a ThinkPad and contrary to what I was thinking
>   earlier, booting inclusive of copying to RAM takes about the same time
> as
>   booting off LiveCD!  Installation took about 6mins though we noticed a
>   fixable bug!
>
>   This feature is same as the "toram" option in KnoppiX:
>   http://www.knoppix.net/wiki/Live_CD_Tips#toram_cheat_code
>
> Regards,
> Moinak.
>
> >
> >
> > >
> >  > ---------- Forwarded message ----------
> >  > From: Ajey Gore <ajey at thoughtworks.net>
> >  > Date: Sun, May 4, 2008 at 1:23 PM
> >  > Subject: Re: [ug-bosug] Belenix 0.7 can boot from RAM
> >  > To: Bangalore OpenSolaris User Group <ug-bosug at opensolaris.org>,
> >  > Moinak Ghosh <moinakg at gmail.com>
> >  >
> >  >
> >  > That means we need 160 GB Ram :-)
> >  >
> >  >
> >  >
> >  >
> >  >  On 5/4/08 2:11 PM, "Moinak Ghosh" <moinakg at gmail.com> wrote:
> >  >
> >  >> On Mon, May 5, 2008 at 12:29 AM, Sriram Narayanan
> >  > <sriramnrn at gmail.com> wrote:
> >  >>> Wow ! :) Now that is a cool thing :)
> >  >>>
> >  >>>
> >  >>>  On Sun, May 4, 2008 at 10:52 AM, Joseph George <Joe.G at sun.com>
> wrote:
> >  >>>> I am not sure everyone on this list understands what this means to
> >  >>>>  BeleniX or another OpenSolaris LiveCD.
> >  >>>>
> >  >>>
> >  >>>  I agree.
> >  >>>
> >  >>>  I can think of three different meanings for "Belenix boots from
> RAM" :D
> >  >>>
> >  >>>  Some questions for you:
> >  >>>  - Would I now be able to do a PXE boot of Belenix ?
> >  >>
> >  >>    No. This is a different piece. Loading the compressed image from
> >  >>    CDROM to RAM.
> >  >>
> >  >>>  - Does this mean that I now have a means to remove the LiveCD
> >  > after bootup ?
> >  >>
> >  >>    Yes.
> >  >>
> >  >>>  - Would this mean that Xen could now boot the OS off RAM ?
> >  >>
> >  >>    Should be yes.
> >  >>
> >  >>>                 High speed bootups of VM instances containing
> Tomcat +
> >  >>>  a web app is a common use case in the Build + Virtualization
> world.
> >  >>
> >  >>   If you want to do that you are better off using a different
> method. Create
> >  >>   a ramdisk using ramdiskadm and boot a VM off that.
> >  >>
> >  >>   This work essentially gives a slow bootup (5+mins) but blinding
> fast
> >  >>   execution and very fast installation after being booted - since
> everything
> >  >>   is running off RAM.
> >  >>
> >  >> Regards,
> >  >> Moinak.
> >  >>
> >  >>>
> >  >>>  It's really great to see new stuff, and I'm looking forward to
> seeing
> >  >>>  your presentation at BOSUG !
> >  >>>
> >  >>>  -- Sriram
> >  >>>
> >  >>>
> >  >>>
> >  >>>
> >  >>>>  ~Joe
> >  >>>>
> >  >>>>
> >  >>>>
> >  >>>>  On 04-May-08, at 10:32 PM, S h i v wrote:
> >  >>>>
> >  >>>>> On Sun, May 4, 2008 at 9:55 AM, sham pavman
> >  >>>>> <shampavman.cg at gmail.com> wrote:
> >  >>>>>> Hi all,
> >  >>>>>>
> >  >>>>>> Its done now.
> >  >>>>>> Belenix 0.7 can now boot from RAM!!!!
> >  >>>>>>
> >  >>>>>
> >  >>>>> Sounds good !
> >  >>>>> You should talk about it in the next UG meeting.
> >  >>>>>
> >  >>>>> -Shiv
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