Re: power saving(mobile-update daemon,...)

[Werner Heuser <wehe@snafu.de>]

Stephane Bortzmeyer schrieb:
> 
> On Saturday 4 September 1999, at 11 h 12, the keyboard of Werner Heuser
> <wehe@snafu.de> wrote:
> 
> > the 'dpkg-divert' mechanism. It restored the former
> > 'update' package without any problems.
> 
> Even better: if you upgrade the original "update" while mobile-update is
> installed, it upgrades the copy and, when you remove mobile-update, the
> upgraded copy is used. That's one of the thing that make me say that Debian is
> much easier to use than any other Linux distribution (as long as you rely on
> facts, not on often-repeated marketing speeches).
Should be a new slogan: "Debian Is Easy!"
...
> > - /usr/doc/update is empty and /usr/doc/mobile-update is nearly empty
> 
> The Web page is referenced in /usr/doc/mobile-update/README.Debian. I'm not
> responsible for the "update" package.
> 
> Any other question should be directed to the upstream authors.
Sorry, Stephane I didn't want to bother you. I wanted to make
clear that I have tried to read before asking questions.
...

Thank you for your useful information.

-werner-

BTW: I have installed a similar program 'noflusd', too.
This is also available as *.deb at

http://www.tuebingen.linux.de/kobras/noflushd/

>From 'man noflushd'
...

Description
       noflushd  monitors disk activity and spins down disks that
       have been idle for more than <timeout> seconds.

       noflushd  actually  used  to  live  in  some  versions  of
       bdflush, but since kernel version 2.2.11, bdflush has been
       completely replaced by the  kernel-level  kupdate  daemon.
       When  noflushd decides to spin down an idle disk, it syncs
       the filesystems, calls the external skript /sbin/noflushd-
       spindown  that  handles the actual spindown and stops kup-
       date, so all writes to block devices are suspended. Spinup
       happens  on  the first read request to the disk.  noflushd
       then calls the external skript /sbin/noflushd-spinup  that
       handles spinup if necessary and restarts kupdate.

       Sending  signal 10 (SIGUSR1) to noflushd forces the daemon
       to spin down disks immediately.

       IMPORTANT: noflushd is mainly intended for  use  on  note-
       books  and  currently  can  sensibly  handle only one hard
       disk. Per default, it monitors /dev/hda.

...

-- 
Werner Heuser                       | There is no time,             /~~
LiLAC - Linux with Laptop Computers | ... to make war ...          /~~~
Berlin, Germany                     |   -Lou Reed-                /~~~~
T. +49 30 349 53 86   <wehe@snafu.de>  www.snafu.de/~wehe/index_li.html