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1  Hardware and U-Boot firmware / Hardware / Re: Tuto : How to replace the power supplied of GuruServer + on: July 31, 2010, 03:53:45 PM
My plug was not responsive two time in hot days, before i do that.
I don't know if it fix the heat problem but at least help i think is helpfully.
Now the plug is less hot than before, so we will see  Wink
2  Hardware and U-Boot firmware / Hardware / Tuto : How to replace the power supplied of GuruServer + on: July 31, 2010, 11:10:28 AM
With the know heat problem of GuruplugServer+ i replace the power supply.
So i bough an external power adaptater with femal connector.

You need 5v / 3A. I read somewhere here that 2A is just enough, but a little bit more is better, so 2.5/3A is ok, especially if you connect some USB/esata HDD.

I open the plug .. and lose the warranty

I solder the femal connector on the output of original power supply. I advise to set the + (red) in the center of the connector, so be aware of the direction.

Why i keep the power supply of the plug ?
I haven't another connector between power supply & computer part of the plug.
The power supply of my plug isn't dead, so i wanted keep it fonctional.
And there not anough place to have a two connector in the box.

WARNING : It's better to disconnect (unsolder) the power supply of plug. Else, if you connect the extermal adaptator AND the power supply you will burn your plug  Roll Eyes

Finnaly make a hole on the opposite side of USB/RJ45 connectors. For me an 8mm hole.
And put back the power supply :

Finnaly putback the computer part and reassemble everythings.

Well it's done & works !!!  Grin
I hope it will be helpfully for other users  Wink
3  General Category / General Discussion / Re: How can i edit the files in sheevaplug? vi does not work well on: June 15, 2010, 07:13:06 AM
I'm just more use to vim than nano, so that's my preference.

Just like me  Cheesy VI-tiny is more closed of the original VI, and VIM is more intuitive/usefull for me ...
4  Linux Stuff / General Linux questions / TurnOff Wifi & BlueTooth on: June 13, 2010, 11:33:22 AM
I've a Guru S+ but i think it's works for Sheeva too.
There heat problem with some plugs. Hopefully mine seems not to be affected, but to prevent this problem i try turn off Wifi & Bluetooth.
So appear there two way for that:

First make a shell script to unload drivers. something like that:
#Desactivate Wifi
modprobe -r libertas_sdio;
modprobe -r libertas;
#Desactivate Bluetooth
modprobe -r btmrvl_sdio;
modprobe -r btmrvl;
The LED stop to blink, so it's work.

And the opposite to turn on
#Activate Wifi
modprobe libertas_sdio;
modprobe libertas;
#Activate Bluetooth
modprobe btmrvl_sdio;
modprobe btmrvl;

Second black list module with adding some lines in /etc/modprobe.d/blacklist
# This file lists modules which will not be loaded as the result of
# alias expansion, with the purpose of preventing the hotplug subsystem
# to load them. It does not affect autoloading of modules by the kernel.
# This file is provided by the udev package.
blacklist wdt
blacklist wdt_pci

#Desactivate Wifi
blacklist libertas_sdio
blacklist libertas
#Desactivate Bluetooth
blacklist btmrvl_sdio
blacklist btmrvl

Now some questions :
- Have I forgot something ?
- There another(s) better way ?

Suggestions are welcome

edit : velo_love nota
5  Linux Stuff / General Linux questions / Re: SdCard speed probleme with automount (Guru+) on: June 12, 2010, 12:42:28 PM
Well, but if i want make the sdcard my rootfs, it's work ?

edit :
I found a generic solution for all usb
There a daemon an we can change option in /etc/usbmount/usbmount.conf

edit :
It's seems working with sdcard as fsroot  Cheesy
6  Linux Stuff / General Linux questions / Re: SdCard speed probleme with automount (Guru+) on: June 12, 2010, 05:15:25 AM
sorry for delay.
I don't use any option when i mount manually the card just an
mount /dev/sdb1 /media/usb0

My /proc/mounts looks like that
rootfs / rootfs rw 0 0
ubi0:rootfs / ubifs rw,relatime 0 0
tmpfs /lib/init/rw tmpfs rw,nosuid,relatime,mode=755 0 0
proc /proc proc rw,nosuid,nodev,noexec,relatime 0 0
sysfs /sys sysfs rw,nosuid,nodev,noexec,relatime 0 0
usbfs /proc/bus/usb usbfs rw,nosuid,nodev,noexec,relatime 0 0
tmpfs /dev tmpfs rw,relatime,size=10240k,mode=755 0 0
tmpfs /dev/shm tmpfs rw,nosuid,nodev,relatime 0 0
devpts /dev/pts devpts rw,nosuid,noexec,relatime,gid=5,mode=620 0 0
tmpfs /var/cache/apt tmpfs rw,nosuid,noexec,relatime 0 0
/dev/sdb1 /media/usb0 ext3 rw,sync,nodev,noexec,noatime,errors=continue,data=writeback 0 0

When the card is mounted automaticaly i have
sheevaplug-debian:~# mount
tmpfs on /lib/init/rw type tmpfs (rw,nosuid,mode=0755)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
procbususb on /proc/bus/usb type usbfs (rw)
udev on /dev type tmpfs (rw,mode=0755)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=620)
rootfs on / type rootfs (rw)
tmpfs on /var/cache/apt type tmpfs (rw,noexec,nosuid)
/dev/sdb1 on /media/usb0 type ext3 (rw,noexec,nodev,sync,noatime)

and manually :
/dev/sdb1 on /media/usb0 type ext3 (rw)

So when i mount manually with options
mount /dev/sdb1 /media/usb0 -o noexec,nodev,noatime, sync # same speed problem
mount /dev/sdb1 /media/usb0 -o noexec,nodev,noatime         # no problem

Now How can i delete the "sync" option by default Huh

7  General Category / Application ideas and development Q/A / Re: Remote Access to Sheeva (like teamviewer) through Command Line on: June 11, 2010, 12:54:22 AM
Yuo can install  X.org on your plug ....
And you connect to your plug with "ssh -X" to obtain the Gui of the software  Grin
8  General Category / General Discussion / Re: How can i edit the files in sheevaplug? vi does not work well on: June 10, 2010, 01:36:44 AM
Maybe you search VIM instead of VI-tiny ... by default it's a slim version of VIM in Debian

edit :
The full version of VIM is around 25Mo Roll Eyes (VIM + VIM-common + VIM-runtime)
VIM-tiny is around 2Mo (VIM-tiny + VIM-common)
9  Linux Stuff / General Linux questions / [RESOLVED] SdCard speed probleme with automount (Guru+) on: June 08, 2010, 11:26:32 AM
The original problem was here
But i found exactly when the problem appear, so i open a new topic to find a solution.

Well i try to put the rootfs on a SD card.
I bough a Dan-Elec 8Go class4 microSDcard and i test his performance.
And surprise the write speed is around 9Ko/s  Shocked and read speed around 20Mo/s  Smiley
I tried many things to find the probleme, and finnaly i reformate the SD card from my plug and when i mount the new partition it's works fine  Grin
But when i get out / in the SD card from the plug the problem reappear  Angry
So there two case:
-- The SD card is auto mounted by the system = speed problem
-- The SD card is manually mounted by user = works fine

Finally when i boot the rootfs on sdcard the system is very slow  Cry

Any idea / suggestion ?


edit : I don't flash Uboot and Kernel ...
U-Boot =  2009.11-rc1-00602-g28a9c08-dirty
Kernel =  2.6.32-00007-g56678ec
10  General Category / General Discussion / Re: [RESOLVED]Very slow write-speed on microSD (GuruServer+) on: June 08, 2010, 10:59:24 AM
Humm finally the problem is really strange ...
I test again the sdcard after normal shutdown/ restart of plug and the problem reappear   Angry
but with a umount / mount it's works fine again  Shocked

i don't understand ...  Undecided

edit :
Finally when i mount manually the sd card by a
mount /dev/sdb1 /media/usb0
It works fine
But when the system automount the sd card i find again my poor write speed  Huh
I create a new topic for the probleme
11  General Category / General Discussion / Re: Very slow write-speed on microSD (GuruServer+) on: June 08, 2010, 04:43:06 AM
I follow instruction here and ....

sheevaplug-debian:~# dd bs=1024 count=200K if=/dev/zero of=/mnt/sdcard/test.tst
204800+0 records in
204800+0 records out
209715200 bytes (210 MB) copied, 24.6595 s, 8.5 MB/s
sheevaplug-debian:~# dd if=/mnt/sdcard/test.tst of=/dev/null
409600+0 records in
409600+0 records out
209715200 bytes (210 MB) copied, 2.03942 s, 103 MB/s

Well after re-formate my sdcard WITH THE PLUG performance are quite good  Cheesy

But it's really strange, why if the sdcard is formated from other pc performance are so bad  Undecided
12  General Category / General Discussion / Re: Very slow write-speed on microSD (GuruServer+) on: June 08, 2010, 02:34:26 AM
My card was formated in ext3 by a debian distro on my PC
Well, i'll format again my card but with my plug this time ...

Thanks for your reply
13  Hardware and U-Boot firmware / U-Boot stuff / Re: Guru Server plus - boot from SD card on: June 07, 2010, 02:33:02 AM
At this moment there no way to boot kernel from SD card, juste have the rootFS.

If you folow this method you can read
If you want to save the paramaters, and let it be true in the next time to boot, do
Marvell>> editenv x_bootargs_root
edit: ubi.mtd=2 root=0811 rootdelay=10
Marvell>> saveenv
Saving Environment to NAND...
Erasing Nand...
Erasing at 0x40000 -- 100% complete.
Writing to Nand... done
Marvell>> reset

So if you want keep the choice between flash and SD card see here for multi boot system Smiley
14  General Category / General Discussion / [RESOLVED]Very slow write-speed on microSD (GuruServer+) on: June 07, 2010, 02:19:34 AM
I recently buy a microSD card (Dan-Elec 8Go class4), and i test his performences in read/write;
So i follow this page for testing

sheevaplug-debian:/media# dd if=/media/usb0/test.tst of=/dev/null
1024000+0 records in
1024000+0 records out
524288000 bytes (524 MB) copied, 25.5926 s, 20.5 MB/s
Well, for read speed it's Ok

sheevaplug-debian:/media# dd bs=1024 count=50K if=/dev/zero of=/media/usb0/test.tst
8173+0 records in
8173+0 records out
8369152 bytes (8.4 MB) copied, 924.167 s, 9.1 kB/s
But for write speed  Cry

I test with another one microSD card (512Mo) and for the write-speed i have the same problem  Angry (for read it was Ok)

So i do the same test with a card reader on my computer and i find more than 7Mo/s write speed (nearly the same read speed)

So wat's wrong with my plug  Embarrassed
I don't flash  U-Boot and Kernel, both are originals.
I will be obliged to upgrade U-Boot/Kernel ?

For information my plug is very hot (230v~) but don't reboot, and when get out the card she is very hot too  Undecided

Any suggestion ? idea ? same experience ?

For comparaison can you do the test ?
15  Hardware and U-Boot firmware / U-Boot stuff / Re: Howto update u-boot on guruplug plus? on: May 26, 2010, 01:24:42 PM
@ Mimoza: Thanks for your reply, I did the u-boot upgrade process described at cyrius.com with the USB method and I think I just bricked my plug  Roll Eyes
I could imagine, that the addresses described for the sheevaplug are invalid for the guruplug:
nand erase 0x0 0xa0000
nand write 0x0800000 0x0 0xa0000
But in fact I have no idea, whether this is correct or not. This is what now happens after I wrote the uboot image from plugcomputer.org (md5 d60aff3db94132d611413efab31ce373: uboot.guruplug.bin) and reset the plug:
Yep there some differnce between Shevva and Guru ... sorry
I think TFTP method should be a better way.
I'm not a guru of Guruplug  Grin

edit : I find this to upgrade the U-Boot for guruplug
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