PicUntu-4.5-nand-BasicGUI installer - One file, few click install.

[crendore]

Disregard my last post as it works now. Instead of using the crappy windows 1.37 rkflash, I used rkflashtool on linux and it booted! Hooray!

Oh man, you figured it out!? we had the exact same problem! I am still stuck i can't figure out what hex to use for offset and for size when writing the system.img ....

When i dump parm.bin i get this:

CMDLINE: initrd=0x62000000,0x00800000 init=/sbin/init root=/dev/mtdblock2 mtdparts=rk29xxnand:0x00008000@0x00002000(boot),0x 00008000@0x0000A000(kernel),-@0x00012000(system)

Where for system it just says '-' what do i use for that?

Alok, do you know?

Edit: figured it out. - means the rest of the space basically, so you take the total size of system.img divide by 512 and convert to hex. done.

[ionutz]

finaly work on mk908

After some time and many attempts finally picuntu works on mk908. some problems with flash player but can expect will solve this problem. Thank you all for contributing to this issue and hope to resolve

[crendore]

So stuck...

Thank you for this awesome installer!

But I am seriously stuck and was hoping someone might be able to help. Yes i have searched the forums, yes i have read this whole thread and other threads.

I followed the instructions exactly and installed this onto my brand new MK802 IV. The flashing goes fine, and then it begins to boot. But then the boot gets stuck at:
Init: failed to spawn hostname main process: unable to execute: Exec format error
Init: failed to spawn plymoth main process: unable to execute: Exec format error
Init: failed to spawn hwclock main process: unable to execute: Exec format error
Init: failed to spawn mountall main process: unable to execute: Exec format error

And then it hangs. forever. I know it says to wait in the tutorial, so i waited 5 hours. Then i rebooted, and waiting again another 5 hours, stuck at same spot.

I tried flashing again, and again stuck at exact same spot. Is it possible i am doing something wrong? please help!

Thank you!

[SergioPoverony]

(I don't yet know how to configure the flashtool, once I do, step 7 can be eliminated - if some kind soul can share with me - I will be obliged)

For YOU config.zip
i'm install on my tablet PC - i dont see on screen, work only backlight. How Fix it?
PIPO m8pro RK3188

[dave333]

multiboot mk908II

Hello!


I'm thinking, is there any multiboot, so you can both have picuntu and original rom / finnless. Would be nice to be able to test both. I have mk908II.


By the way, there are some Swedish users who test video service magine.com via picuntu?

[Jackyman38]

I just had a catastrophic crash earlier. I flashed PicUntu on to Rikomagic Mk802IV no problem and worked fine for a week. but I was compiling a new version of BOINC then I did a reboot, after that the device won't start at all. I had to reflash back to PicUntu 4.5 from the beginning. I am not sure what happened, may be a NAND flash write error or something.

[sgjava]

Hi and many thanks for all of the info.

I am using a Reco MK 809III and as I am running Picuntu on it I am unsure of the rom version.

I'm pretty new to this micro pc's so I am a little unsure flashing a new rom. Can someone point me to a link that gives approx. step by step details on how to do that. Some of the posts I have read talk about replacing the kernel.img but that's part of Linux.. not the rom itself

I only need 320 x 240 image data so the load on the SB will be less. There is also the possibility of using one of the HD webcam that does JPEG compression on te camera side.

Again any thanks for your input
Dave

Using gstreamer you will get pretty good performance by letting the camera do the JPEG compression. 1280x720 @ 10 FPS will use about 25-30% of a dual core. This is doing motion detection as well, so you should actually get a little better performance depending on the application. 1280x1024 @ 5 FPS with no compression uses about 45% of a dual core.

[marcwolf]

See http://www.rikomagic.co.uk/forum/vie...tart=30#p16659. It appears that USB cameras only work with the latest factory ROM, so I would assume that once the kernel is based on that it will work on the RK3188 in Linux or Android ROMs. They will not work on the original stock ROM (at least the MK802IV Pre-July model). On the MK808 I can easily get 640x480 @ 30 FPS with a cheap $6 USB webcam, no problem.

Hi and many thanks for all of the info.

I am using a Reco MK 809III and as I am running Picuntu on it I am unsure of the rom version.

I'm pretty new to this micro pc's so I am a little unsure flashing a new rom. Can someone point me to a link that gives approx. step by step details on how to do that. Some of the posts I have read talk about replacing the kernel.img but that's part of Linux.. not the rom itself

I only need 320 x 240 image data so the load on the SB will be less. There is also the possibility of using one of the HD webcam that does JPEG compression on te camera side.

Again any thanks for your input
Dave

[sgjava]

Hi.
I have gone further with some experiments. I found this page

https://github.com/sgjava/byoc/wiki/Install

And when I installed cheese I could use the Digitech and Ritmo cams.. However the Microsoft and Logitech cams still would not register as video0


So I can use some camera's with the uvcdynctrl and see a webcam feed but it is very very slow and I am getting a constant string of libv4l2: errors

As I am not interested in webstreaming I did not go any further, however until the speed of frames and/or the drivers for the camera's are working it puts my research at a halt.

If you have any suggestion then that be great.
Dave

Make sure your user has permission to the video group:

usermod -a -G video <username>

This may not be the issue, but try it. Also, see my reply a couple of posts down.

[sgjava]

USB Webcams

Webcams can do around 8-10 FPS at 640x480. The limitation is from USB speed.
If you are interested I can give you a very simple program which test pure webcam speed (e.g it just reads frames as soon as they are available for v4l driver) and measure rate.
my RK3188 and rk3066 devices give around 8-10 FPS, same webcam on old and slow Intel-based laptop gives 30FPS.

See http://www.rikomagic.co.uk/forum/vie...tart=30#p16659. It appears that USB cameras only work with the latest factory ROM, so I would assume that once the kernel is based on that it will work on the RK3188 in Linux or Android ROMs. They will not work on the original stock ROM (at least the MK802IV Pre-July model). On the MK808 I can easily get 640x480 @ 30 FPS with a cheap $6 USB webcam, no problem.

[mmm123]

Webcams can do around 8-10 FPS at 640x480. The limitation is from USB speed.
If you are interested I can give you a very simple program which test pure webcam speed (e.g it just reads frames as soon as they are available for v4l driver) and measure rate.
my RK3188 and rk3066 devices give around 8-10 FPS, same webcam on old and slow Intel-based laptop gives 30FPS.

[marcwolf]

Hi Alok

I have tried several

Microsoft LifeCam vx-3000 - I can see is with lsusb but no /dev/video0
Digitech N287 - Can see dev/video0 but wll not display any picture
Laser webcam - no lsusb
Ritmo webcam - no lsusb

Please help - my project really needs a webcam....
Many thanks
Marc

Hi.
I have gone further with some experiments. I found this page

https://github.com/sgjava/byoc/wiki/Install

And when I installed cheese I could use the Digitech and Ritmo cams.. However the Microsoft and Logitech cams still would not register as video0


So I can use some camera's with the uvcdynctrl and see a webcam feed but it is very very slow and I am getting a constant string of libv4l2: errors

As I am not interested in webstreaming I did not go any further, however until the speed of frames and/or the drivers for the camera's are working it puts my research at a halt.

If you have any suggestion then that be great.
Dave

[musamk]

And here is the kernel....
First Unzip it
Just erase the older kernel and flash this one with rkflash tool 1.37 , you are good to go...

Hi,
I have a k-r42. The device is very slow to 1080p. May you compile a 720p kernel ?
Thank you very much.

[marcwolf]

What Cam are u using ?

Alok

Hi Alok

I have tried several

Microsoft LifeCam vx-3000 - I can see is with lsusb but no /dev/video0
Digitech N287 - Can see dev/video0 but wll not display any picture
Laser webcam - no lsusb
Ritmo webcam - no lsusb

Please help - my project really needs a webcam....
Many thanks
Marc

[flacdo]

Why not try the same...phjanderson has done some very impressive work

Alok

Hi and thank you !
Well, according to my poor english you mean : why not trying the original kernel ?
That is what I have done, with bad result for the ethernet connection. And that is why I was wondering if the phjanderson kernel replacement would be ok.
Or maybe this is your answer : try the replacement...
Arg...
I Have to go back to school
Thanks again !