Snapshot boot with TuxOnIce

[RiHL]

Hi, is somehow possible to snapshot boot with TuxOnIce ( create hibernation image early after boot (with DE + apps started) and resume from it each time instead of normal "slow" boot) ?
My problem is, that when i write something to disk and boot from hibernation image, changes to my root filesystem dissapear.
Is there any kind of forced remount?
Or something like read-only boot → taking the image → chrooting whole system (without stopping any apps) ?
Or is there some other possibility to boot in less than 5 seconds? (already have asynchronous scsi scanning and e4rat - 15 s)
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My poor English is fault of Google Translator.