Re: Hibernate

[Nigel Cunningham <ncunningham@cyclades.com>]

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Hi Allan.

On Wednesday 12 April 2006 22:50, Cleaveland, AJ Allan @ IS wrote:
> I'm trying to get hibernate to work on CentOS 4.  What I really want to do
> is use hibernate to start-up the machine every time.  To do this I would
> create an "image" to come out of hibernate with and set the machine to
> always think it's coming out of hibernate, no matter how it was actually
> shut down.  It would always use my "image", even if it was placed in
> hibernate when it shut down.  Without rewriting other people's code does
> anyone know of a way to do this?
>
> Thank you,
> Allan

I'm not sure I understand what you're saying correctly, but it sounds to me 
like you want something like the KeepImage feature in Suspend2. This feature 
lets you suspend once, and subsequently simply powerdown rather than 
rewriting the image. To use this mode reliably, any filesystems mounted when 
the image is created have to be immutable. This is because the image will 
include information about the filesystems such as superblocks, inodes, 
dentries and so on, and these data structures must match the data on disk.

On resume, you can mount other filesystems (and unmount them prior to powering 
down again), so it is possible to save state.

Is that the sort of thing you're after? If not, could you give further 
details?

Regards,

Nigel

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