linux-kernel - Re: RFC: Self-snapshotting in Linux

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20080416111412.GB32432@atrey.karlin.mff.cuni.cz>
Date:	Wed, 16 Apr 2008 13:14:12 +0200
From:	Pavel Machek <pavel@....cz>
To:	Peter Teoh <htmldeveloper@...il.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Kernel Newbies <kernelnewbies@...linux.org>
Subject: Re: RFC: Self-snapshotting in Linux

> Sorry if this is a a crazy idea.....just be forewarned....
> 
> First, I would like to make a reference to VMWare's snapshot (name not
> important, emphasize the idea) feature - hopefully u are familiar with
> it.   This is a feature whereby u can freeze the entire OS (kernel +
> userspace application running) and then later reload itself next time,
> continuing where it left off, without reboot from ground zero.
> 
> Next, can I ask, is such a feature useful in Linux?   Ie, able to
> restart the kernel + userspace application from where u left off, the
> last time round.    Not JUST the normal suspend/resume feature, but
> more important able to CHOOSE among the different available images
> for
> u to resume on.   Eg, u want to freeze the current 2.6.25-rc6
> kernel,

Could we use english on this list?

Anyway, hibernate, cp /dev/root /somewhere/root.1; cp /dev/swap
/somewhere/swap.1

If you want to resume selected version, copy back that set of devices,
and proceed normally.

									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/