[vox-tech] Re: [vox] Demo today

[Peter Jay Salzman]

redirected to vox-tech

begin Jonathan Stickel <jjstickel@netscape.net> 
> I was previously unaware of the magic sysreq keys.  They do look useful, 
>  and I read the documentation as you suggest.  From what I can tell, it 
> is compiled in my kernel (CONFIG_MAGIC_SYSRQ=y), but I am wondering if 
> it is disabled with the run-time command:  "echo "0" > 
> /proc/sys/kernel/sysrq", as suggested by the documentation.  In fact, my 
> /proc/sys/kernel/sysrq contains the single character "0".  Where would I 
> find this run time command?  Can I just delete it or comment it out? 
> Thanks,
> 
> Jonathan

have you tried to use sysreq and it didn't work?

pete

> Peter Jay Salzman wrote:
> >hi doug,
> >
> >check out /usr/src/linux-2.4.20/Documentation/sysrq.txt
> >
> >it's very short.  basically, you make the kernel:
> >
> >1. flush buffers ("sync disks")
> >2. remount all partitions as read-only
> >3. reboot
> >
> >print screen == sysrq
> >
> >alt-sysrq-s    flush
> >alt-sysrq-u    remount partitions as read-only
> >alt-sysrq-b    reboot
> >
> >you can actually send TERM and KILL to all processes.   this is the kind
> >of thing you should really read about before using.   it's short and
> >well written.
> >
> >pete
> >
> >
> >begin R. Douglas Barbieri <doug@dooglio.net> 
> >
> >>Okay, so explain to me the magic sysreq keys... :-) I experience lockups
> >>sometimes when I'm trying to start up Win4Lin. It hoses my machine so
> >>badly that Ctrl-Alt-Backspace won't even kill X (and Ctrl-Alt-Fn doesn't
> >>even work. I have to hard restart when that happens).
> >>
> >>On Sat, Mar 15, 2003 at 09:38:11PM -0800, Bill Kendrick wrote:
> >>
> >>>Today's Linux demo was pretty successful.  Mike showed up (a bit late 
> >>>;^) )
> >>>with the Demo machine.  Before that, I just had the flyers set up, and
> >>>a couple of kids came by, and I gave them Tux Paint CDs. :^)
> >>>
> >>>When the computer showed up, we started getting many more visitors.
> >>>Questions ranged from "I use Linux at work, and the other day it 
> >>>/completely/
> >>>locked up!" (Mike explained magic sysreq keys) to "Why would I want 
> >>>Linux?"
> >>>(I said "for the good of humanity"; she really digged that answer, and
> >>>stuck around and talked for a long time)
> >>>
> >>>Towards the latter half, Jeff Newmiller came by and set up his laptop,
> >>>so we had one desktop, one laptop, and one PDA (which didn't get too 
> >>>much use).
> >>>
> >>>
> >>>We worked on getting Apache configured to show off the LUGOD.org website,
> >>>demo'd Tux Paint a lot, and played a little with getting OCR software to
> >>>work (in response to someone's complaint about Windows).
> >>>
> >>>
> >>>Henry - we should set one up for April or May!
> >>>
> >>>-- 
> >>>bill@newbreedsoftware.com                                            
> >>>Hire me!
> >>>http://newbreedsoftware.com/bill/    
> >>>http://newbreedsoftware.com/bill/resume/
> >>>_______________________________________________
> >>>vox mailing list
> >>>vox@lists.lugod.org
> >>>http://lists.lugod.org/mailman/listinfo/vox
> >>
> >>-- 
> >>R. Douglas Barbieri
> >>doug@dooglio.net
> >>http://www.dooglio.net
> >>
> >>GPG Fingerprint : FE6A 6A57 2B95 7594 E534  BFEE 45F1 9E5E F30A 8A27
> >>MIT.edu recv-key: F6368A3D
> >>GPG Public key  : http://www.dooglio.net/dooglio.asc
> >
> >
> >
> >
> 
> 
> _______________________________________________
> vox mailing list
> vox@lists.lugod.org
> http://lists.lugod.org/mailman/listinfo/vox

-- 
Fingerprint: B9F1 6CF3 47C4 7CD8 D33E 70A9 A3B9 1945 67EA 951D