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1  Hardware and U-Boot firmware / Hardware / Re: Seagate Dockstar on: October 17, 2010, 11:47:14 PM
This topic seems to be dead, but for future visitors:

There's a serial port within those 10 pins.
Debian can be easily installed on the thing.

2  Hardware and U-Boot firmware / Hardware / Re: How to power SheevaPlug with AA batteries? on: October 15, 2010, 01:20:54 AM
Let me point it back to the topic for a moment Wink

I would like to make SheevaPlug work on batteries, but not on daily basis (which has no sense - see post #2) but as a kind of UPS.

Plug would work with normal power support and if unplugged - stay up for 10 minutes on a battery pack. I could use small batteries as the capacity is not an issue.
It would save plug from accidental power outages and moving between sockets reboot.

All is needed is:
 1. a set of small batteries (AAA would fit in the empty spaces in SheevaPlug I guess, but they can hang out Wink )
 2. a tiny piece of electronics to kick in the battery source when the power is out and to keep the parameters good for the plug. (voltage can be reduced AFAIK)
 3. a connector so that when PSU is plugged via the electronics (2) you can plug batteries whenever you want

That's the idea and I'm not an electreonics guy, so good luck. And if I make my friend solder it up for me I'll let you all know Smiley
3  General Category / Application ideas and development Q/A / Re: Anybody here successfully running apache2/php5 on ShPlg? on: October 15, 2010, 01:05:33 AM
Sorry for the delay, I just forgot to take a look.

Well, there's nothing to suggest instead of JPEG. I just said JPEG is loads of floating-point calculation and the plug has no FPU, so it's slow. Uploading and storing is ok, but decoding and saving jpeg images will take a lot more time. There's nothing you can do.

... or try PNG if php supports it. The images are bigger, but less CPU intensive in decoding and encoding.
4  Hardware and U-Boot firmware / Hardware / Re: "Official" replacement PSUs - anyone had one? on: August 12, 2010, 03:40:31 AM
Repairs in my PSU costed me less than 1EUR. Still gets hot, but now I know I have to watch out Wink
5  Hardware and U-Boot firmware / Hardware / Re: Poll: What is the status of your SheevaPlug's Power Supply? on: August 12, 2010, 03:37:39 AM
Try opening the box and seeing for yourselves. My friend who knows a bit of electronics fixed my power supply by replacing the parts that looked fried and the microcontroller and the IR bridge (or whatever it's called in english). He spent about 4PLN (I'm from Poland) on electronics - it's about 1EUR

He said it's in return for a bag of fresh carrots I bought for him when he didn't have cash on him 3 days earlier Smiley
6  General Category / General Discussion / Re: pdflush and syslogd 100% CPU usage on: February 27, 2010, 09:09:42 AM
Hi.

I happen to have the same problem in a bit different situation.

When using mysql I installed on the plug (and randomly for no reason from time to time) I get the pdflush 100% and jffs2_gcd_mtd1 after that. When it's with mysql, the mysql gets 100% CPU before all that. But I'm not sure it's mysql causing it, it's rather hanging on a disk access wait.
I use a basic debian that was there and a pendrive (not that slow) as a storage.  I moved all data and logs that I was able to find to that storage.

Whtat worries me is that it might be a nand used-up block that it trips over.

And does the default debian install swap anything to disk?
7  General Category / Application ideas and development Q/A / Re: Anybody here successfully running apache2/php5 on ShPlg? on: August 11, 2009, 08:14:40 AM
Yup. the site is cool, and You can monitor it.

From my experience - I simply installed apache2/php5/mysql from repos and it was as easy as on any ubuntu. Apache seems memory-consuming, but it partially is just cache. I am planning to do some php5 execution time comparisons with a typical hosting (an account on a big server) and see if it's a large gap or a canyon Wink
You might want to avoid using gzip and jpeg functions in php as it does floating point math which is not the favourite activity for the Plug.
8  Linux Stuff / General Linux questions / Cahrset/locale on: July 25, 2009, 02:50:30 PM
Hi. I tried searching the forum, but didn't find that...

The default debian seems to have a tiny problem with charsets. While installing some stuff I often get a warning that there is no locale setting etc.
And while using ssh I cant get local chars to work properly (my default is utf-8 everywhere).

Anybody knows what that is about? Do I have to fix some settings?

thx in advance Smiley
9  Linux Stuff / General Linux questions / Memory usage tip on: July 25, 2009, 09:10:38 AM
Hi

I saw some issues (moaning? Wink ) on memory usage caused by apache etc.
Propably some of You do not know (I didn't) that Linux buffers lots of stuff into memory and releases only when needed.
If You get nervous seeing plug's mem too extensively used try this:

sync
echo 3 > /proc/sys/vm/drop_caches

and stop worrying Smiley
Know any other ways of "manual garbae collecting"? Wink


PS. My first post, so hello there fellow plug owners!
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