Re: Switching Kernels without Rebooting?

Kai Henningsen
2001-07-13T07:20:52Z

helgehaf@idb.hist.no (Helge Hafting) wrote on 12.07.01 in <3B4D7685.9AC1DED@idb.hist.no>:

> Kai Henningsen wrote:
>
> > What I'd *really* like (but don't see how to get there) would be a "save
> > system state, shutdown, change kernel and/or hardware, reboot, restore
> > state" system (where state is like "I'm logged in on this console, in this
> > current directory, and under X I have Netscape running and this page
> > displayed" but I don't care about the exact state of Squid or even if my
> > ISDN line is dialled in, because those "fix themselves").
>
> Consider os/2 then. All workplace-shell aware programs is supposed to
> save
> state in this way.

The keyword is "supposed". Because I remember from my OS/2 days that most
didn't.

OTOH, Borland's DOS IDE does. It's a mixed bag.

> And yes - they do start up in the same state after
> reboot if you want to. Editors come up on the page you left, filesystem
> folders comes up, and so on.

Most programs from IBM got it right, most others didn't, as far as I can
recall.

> > and then every user-visible non-transient program
> > needs to implement it - and I don't see *that* happen in the next ten
> > years.
>
> Consider a patch for konqueror or a few other webpage/fs-view programs
> and you'll go a long way - all in userspace.

Well, Netscape *can* sort of do it (for one window).

But how do I make it happen for bash? login? xdm? Amd so on ... anyway, I
simply don't have the time for such a project. I'm spread too thin as it
is.

MfG Kai