i want to use open vpn in android 4.0.3 and kernel 3.0.8 but the prblm is its cannot connect TUN cannot open error comes. need to root tablet but how to root ?
My Model :
Bsnl Penta IS703C
android 4.0.3
kernel 3.0.8 ?
and one thing when we root is the OS also changes if your team can change my os also
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Download a terminal client, e.g. ConnectBot and connect to your local shell.Enter `su` to become root. (Double check with whoami afterwards). Enable wifi tethering and ensure your data connection is working (connect to VPN)
Run `netcfg` and note your interface names (typically tun0 and wlan0 (ignore m.wlan0 or similar, only take the one with a real mac address), as is on my SGSII)..Double check the subnet for your wlan0 device and enter the following commands:
iptables -A POSTROUTING -s 192.168.43.0/24 -j MASQUERADE -t nat
(setup a postrouting entry for the tethered devices subnet, implementing NAT)
iptables -A FORWARD -j ACCEPT -i wlan0 -o tun0
forward packets from tethered devices across the tunnel
iptables -A FORWARD -j ACCEPT -i tun0 -o wlan0
forward packets from the tunnel to the tethered devices
Note, because you are using NAT, you will need to configure port forwards on your Android device to be able to run servers etc on tethered devices. Unlikely you'll need to worry about that though. Feedback if it worked or not. Posting this now from my home IP, OpenVPN for Android and these iptable rules!
Is it possible to write a in-app openvpn connection (via streams and sockets)? If it is, then is there any android application which managed that already? I have also problems finding in-depth openvpn protocol description.
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View 1 Replies View RelatedSeveral threads have indicated that the Droid supports OpenVPN connections, but for the life of me, I can't figure out how to configure this. The only VPN option that even looks close is "Add L2TP/IPSec CRT VPN", but I can't figure out how to load the user and CA certificates...hell, I don't even know if this is the correct option for an OpenVPN connection.
View 1 Replies View RelatedDoes KaosFroyo v34 have SetCPU built in? Or is it even compatible with this kernel? If yes, where do I find it? I really want to tweak things to see if I can get this battery to last longer.
Also, any idea how to set a CA/user certificates in: Settings>Wireless & Networks>VPN Settings>Add VPN>Add OpenVPN VPN (when I select either of those, the only option I have is "Cancel")
Been trying to get OpenVPN to work properly and have not had much luck.
Here are my specs.
HTC Incredible
Virtuous v3.1.0
2.6.32-Hydra-ssuv-v05
OpenVPN binary has been installed. I have also install busybox and then softlinked ifconfig and route to the commands the same way CM6 has it.
I was able to get OpenVPN to work properly within CM6 without much hassle. I have found battery life and experience better for me with Virtuous ROM so I went back to it.
When I launch the connection to establish the VPN session it connects but I am not able to work within the network. I was not able to communicate even with the VPN server.
I ran a netcfg and discovered that tap0 was down. I brought it up but its routing table was empty. I filled it in and was able to communicate with the VPN server and my advertised networks. If I drop my VPN connection, tap0 goes down and the routing table is cleared.
The VPN server works. It works with my other boxes and worked with this phone under CM6.
Does anybody know if the new desktop kernel patch written by Mike Galbraith can be applied or modified to be used in the android kernel?
Tiny Linux Kernel Patch Delivers Huge Speed Boost - PCWorld Business Center
I haven't messed around with android kernels yet, but I have applied it to my current Ubuntu 10.10 system and you can see the difference. Its like night & day!
I have vanilla linux kernel version 2.6.27. I want to apply android specific patches and convert it to android linux kernel 2.6.27. Where can a user find the patches to convert a normal vanilla kernel into android kernel?
View 1 Replies View Relatedwhere I have got right now on my phone, which is:
1. I updated to stock 2.1 using the sprint update tool.
2. I followed the video tutorial to root the phone
3. then i used joey's page (http://www.joeyconway.com/sdx/custom/index.php) to install the his kernel (joeykrim-SDX-kernel v2.0.4 (includes root)).
I have done nothing else to the phone but this and removing a couple of bloatware apps (i checked the list of permitted deletions before i removed anything.) I have not installed a new recovery..at least i dont think that I did as part of one of the other operations I performed (as an aside, i am not really sure what the custom recovery is or what it is used for, so i didnt install it...i guess i need to read up more...)
So that is where I am..but i have a couple of questions.
1) i am now having issues with my wifi connection - the signal reception is very spotty in areas where i should have atleast 2 bars of reception, and the wifi often cuts out completely....Is there any know corellation between joey's kernel and this wifi issue? I have searched the forums and have found nothing that answers this.
2) Is there an easy way to get back to the stock kernel? I have read that i can get back to stock everything by using the sprint download center where I did my original 2.1 update. But is there a way to get back to just the stock kernel without wiping the phone?
What sections of kernel code are changed for optimization of performance.
Like we can change
1) the minimum free memory that android need to keep free.
2) Rate of clearing cache
3)Advanced LMK- where we can kill more than one process at at time when memory scarcity occurs.
4) Reducing logging.
5) In framework we can change the oom_adj value of important processes.
6) Implement Zram for kernel.
7) change the minimum and maximum no of process for AMS.
I want to know all the changes that can be made into kernel or framework code to optimize performance. I also want to know how can we implement swapcache for android kernel. What changes do i need to make in the code.
How am I meant to install a kernel?
HTC Explorer A310e using XDA
I currently have bekit 1ghz kernet installed, but I was interested in trying out some other kernels. Can I just install them via Rom Manager over the first kernel? Or is there some kind of uninstall process I should use first?
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View 1 Replies View RelatedI am new to android. i am try to compile android kernel 3.4.0 for HTC device.After running cross compile command,
"export CROSS_COMPILE=/home/jharvard/ndk-x86/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86/bin/arm-linux-androideabi-"
when I run make clean command "make clean && make mrproper".It shows errors,
/home/jharvard/kernel-code/linux/scripts/gcc-version.sh: line 25: arm-eabi-gcc: command not found
/home/jharvard/kernel-code/linux/scripts/gcc-version.sh: line 26: arm-eabi-gcc: command not found
Is there any way to emulate an android froyo with normal kernel and everything a normal android phone has? Including a market and recovery mode. I want this mainly because I feel terrified by the thought that I might brick my phone flashing a custom rom and I am a beginner so I never tried anything complicated with it. So before I try anything over my phone I want to try this on an emulated phone.
View 9 Replies View RelatedI'm working for Freescale Semiconductor on the i.MX series linux BSP. Now we have android running well on i.MX515 platform, and hope to push android kernel repo into android.git.kernel.org. Then what's the process need us to follow? How reviews will be done? And what we should provide?
View 3 Replies View Relatedi wanna know wheres is the kernel in the ROM and as i can replace it for other kernel
View 1 Replies View RelatedHow to build latest linux kernel from off site for Android device (for example Nexus7)?
I have: AOSP source code
Android build for device (from aosp)
Downloaded kernel 3.8.4 from off site
The question is: How can I build latest kernel using all described stuff (aosp source, kernel config, latest kernel)?
I just want to know how to extract a kernel of a ROM!
View 1 Replies View RelatedI know that the boot img contains the kernel.. but how can i now change somthing inside?
ROMS I open with winrar and then change everything I want.
Does it work a different way at Kernel?
i'm trying to use my custom kernel on avd, when i launch
Code:
./emulator -avd sgsp40 -kernel /home/rmbq/zImage -show-kernel -verbose
the output is:
Code:
emulator: found SDK root at /home/rmbq/android-sdk-linux
emulator: Android virtual device file at: /home/rmbq/.android/avd/sgsp40.ini
emulator: virtual device content at /home/rmbq/.android/avd/sgsp40.avd
emulator: virtual device config file: /home/rmbq/.android/avd/sgsp40.avd/config.ini
emulator: using core hw config path: /home/rmbq/.android/avd/sgsp40.avd/hardware-qemu.ini
emulator: Found AVD target API level: 15
emulator: found skin 'WVGA800' in directory: /home/rmbq/android-sdk-linux/platforms/android-15/skins
emulator: autoconfig: -skin WVGA800
[code]....
there is this line:
Code:
emulator: Could not open file: (null)/system/build.prop: No such file or directory
which appear only when i use a custom kernel.
whats the difference between a ROM and a kernel
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View 1 Replies View RelatedWe know that the ROM is installed to the /system partition. Likewise the kernel ie boot.img is installed to the /boot partition of the device. I tried hard but could not find any reference to such a /boot partition(directory) in the root of the device. I would like know whether it is hidden or disguised as something else. The script that flashes the custom kernels has the following line
Code:
package_extract_file("boot.img", "/dev/block/mmcblk0p9");
(What is the block code for system and other partitions?)
Is mmcblk0p9 the /boot partition? Moreover /dev/block has no reference to boot or mmcblk0p9. So where exactly is the kernel being extracted? The boot.img comes packaged as zImage + ramdisk, In other words where are zImage and ramdisk extracted to, in the root file system and in what form? Is the ramdisk responsible for the creation of the root files system(/dev, /proc, /data. /system, /sys, /sbin etc)?
Well I am working on beagleboard-xm project, where I am supposed to upgrade the current Android version to ICS. The thing is, I have to keep the current kernel , because it is customized for some applications that run on that board. It is not me that compiled that kernel...
Is it even possible to keep the "old" kernel and upgrade to ICS? Can it be done in any way? Or a new kernel with new patches has to be installed...?
I have a small query why cant i use the stock kernel with Cynanogenmod ?What is the difference between the two and how can I make a stock kernel compatible with Cynanogen mod when building one from source
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