Hi,
openvpn need to have universal tun/tap device driver support to be enabled (drivers/net/tun.ko).
This can be done for the ingenic kernels, at this moment this is disabled in my configs.
Can be added as modules or added to the kernel uImage.
If you know how to compile the ingenic kernel 2.6.24.3 or 2.6.31.3, you could add / compile the wanted drivers yourself.
I have added additional support for some drivers for both kernels.
https://projects.kwaak.net/twiki/pub/Epc700/KernelPort26Compiling/tun26243.kohttps://projects.kwaak.net/twiki/pub/Epc700/KernelPort26Compiling
BTW, my minibook had white screens too, but I could alway's recover them without jtag so far.
When I copied my first kernel 2.6.24.3 uImage to /dev/mtdblock1 (using bootloader left shift+fn+ctrl+F1) this caused a corrupt /dev/mtdblock1 and white screen during boot,
maybe because of wrong automount vfat of the new kernel or a bootloader difference of kernel 2.4.20 and 2.6.24.3.
I restored the /dev/mtdblock1 uImage by item 1) below. Item 2) I used to install 3mx 2.6.24.3 os on nand
Some approaches to fix what's broken:
1) If your minibook is only able to startup from sd card, you could be lucky to fix the nand boot without the need of jtag.
(if it is not related to bootloader /dev/mtd0, or bad nand blocks mtd0/1)
I fixed it with an orginal trendtac 2.4.20 kernel and minifs (press left shift+fn+F1 to copy the uImage to /dev/mtdblock1 and left shift fn + right shift to copy minifs recovery to /dev/mtdblock3). Afterwards recover from usb stick or sd card with F3 pressed to an previous distro 3mx or trendtac one.
2) Boot from a working SD card. flash_erase all /dev/mtd1 (uImage) /dev/mtd4 (nand1) , /dev/mtd5 (nand2).
mount -t vfat /dev/mmcblk0p1 /mnt/sd
mount -t ext3 /dev/mmcblk0p2 /mnt/sd2
mount /dev/sda /mnt/usb1
mount /dev/mtdblock4 /mnt/nand
mount /dev/mtdblock5 /mnt/nand2
cat /mnt/sd/uImage2.6.2x.xRVxxx > /dev/mtdblock1
cd /mnt/nand
tar xvjf /mnt/sd/anydistro.tar.bz2
3) If your minibook is 'dead' serial null modem not working, nothing on terminal connected, no uboot start...
You need ftdi jtag driver soldered to the minibook,
http://projects.goldelico.com/p/letux-400-jtag/check below software. To restore /dev/mtd0. You need to have a copy from an original working one. cat /dev/mtd0 > mtd0.dat
http://linuxlaptopforum.ark2webdesign.co.uk/index.php/topic,959.0.htmlI have not tried this out, as my minibook survived all kernel updates untill now, but this looks as a possible way to unbrick the minibook.
For kernel 2.6.31.3. Testing is done very limited. ethernet only checked wired, ethernet is very slow and cause a kernel crash at ifdown eth0...., the 'fix' is nok.
Second issue is startup from F2 (sd) is not supported, because different order of loading modules needed for sound dma workaround.
For testing mipsandroid this isn't a big issue as this needs nand to mount system and data.
For lenny/os/testing better stick to the previous kernel 2.6.24.3, untill there is a newer stable kernel for jz4730.
Maybe the jz47xx kernel updates from qi-hardware will support the jz4730 as mentioned in previous post from Nikolaus. Hopefully.
Grt Ruben.
From: peter_van_akelyen-PkbjNfxxIARBDgjK7y7TUQ@public.gmane.org
To: mipsbook-devel-CQP9ExgZy9rrZ44/DZwexQ@public.gmane.org
Date: Sun, 12 Jun 2011 23:34:23 +0200
Subject: Re: [Mipsbook-devel] kernel 2.6.31.3 minibook update
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Impressive yours is still running (my screen whites out a few seconds after power on).
When trying to use OpenVPN on my LLL it complained about a kernel option for the tunnel device that was not enabled during kernel compilation. Do you if it's possible to use OpenVPN with the 2.6.32.3 kernel?
Mipsandroid would be very cool (although processing power is very limited), keep us posted!
Kind regards,
Peter Van Akelyen
From: r_viets-PkbjNfxxIARBDgjK7y7TUQ@public.gmane.org
To: mipsbook-devel-cunTk1MwBs/k6gDgw6ADrEB+6BGkLq7r@public.gmane.org
Date: Sun, 12 Jun 2011 20:29:02 +0000
Subject: [Mipsbook-devel] kernel 2.6.31.3 minibook update
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Hi,
Updated my latest settings from kernel 2.6.31.3. It's running stable enough on my trendtac with 3mx 2.6 OS, lenny installed on NAND.
http://projects.kwaak.net/twiki/pub/Epc700/KernelPort26Compiling/uImage2.6.31.3RV111 Next thing to try is get mipsandroid working.
My trendtac becomes 'old', wireless usb stick broke, no battery life, increasing bad nand blocks, hopefully it will survive new updates.
Grt Ruben.
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