The kernel is a central component of most computer operating systems. It acts as bridge between applications and the hardware and also manages the systems's resources.

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Samsung S2 kernel change

On my Samsung Galaxy S2, I have Android 4.0.4 running with Kernel 3.0.15-1114882. I need to change to kernel 3.015-1157945 or 3.015-1056084 . Is this possible? If yes How?
4
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2answers
359 views

Why are some files under /proc are universally readable?

Why are some files under /proc are universally readable by anyone using adb? e.g. /proc/<pid>/statm /proc/<pid>/maps /proc/<pid>/smaps We can even cat the content of these files, ...
2
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2answers
249 views

My phone reboots after a kernel oops, what can I do?

I use the CyanogenMod firmware on my phone (CM7.2 on a HTC Wildfire) and when I take photos it sometimes reboots. I found out that a kernel oops happens due to a null pointer dereference in the ...
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0answers
242 views

Where to find the Kernel Source code for my Samsung Epic 4g device? [closed]

I'm trying to recompile a module for my Android device (I'm pretty new to both kernel level stuff and android stuff) I have an Epic 4G CM9 with a Kernel 2.6.35.7-g502e35e, pinky-ghost@cyyanogenmod#1 ...
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0answers
2k views

How to change the display refresh rate of an android device

I am creating a custom ROM for my android device (MT6577 + ICS 4.0.4).The base ROM I'm using is the stock ROM of the device. My device's display refresh rate is pre-configured at 30Hz. Now, I want to ...
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1answer
1k views

How to get setting information before booting Android devices like in BIOS?

Is there any method by which we could get the system information before booting android OS. Like wise in PC/laptop, we can get into BIOS setting before booting and get the system information. Do ...
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0answers
173 views

Upgrading Kernel

I am somehow confused about the kernel and how it plays out. I have a couple of questions: Let's assume my device kernel reports its kernel as 3.0.8 (using uname -r). How can I figure out what ...
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1answer
2k views

My Huawei u8160(Vodafone 858) supports usb-host although not working?

I have a Huawei u8160 running Psyke83's Cyanogenmod 7.2 14/8/2012 which had a package with it to apply usb-host mode kernel called usbhost1-cm-7-20120814-MADTEAM-u8160.zip. So I flashed the zip using ...
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2answers
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Custom Kernels on Stock ROMs?

The General Question: Is it possible to install custom kernels on a Rooted Stock ROM? The Example: I have a Nexus 7 which I have rooted running 4.1.1 (Jelly Bean JRO03D) would it be possible to just ...
7
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2answers
696 views

Faster CPU means higher battery consumption?

A friend of mine and I have the Samsung Galaxy Tab 10.1. His tab is flashed with a custom kernel giving 1.2Ghz instead of the 1Ghz I have by default. Using antutu benchmark, we saw what we expected, ...
7
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1answer
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l2_hsic prevents my device from Deep Sleep. How to fix it?

I have installed BetterBatteryStats and CPU SPY, because I noticed that I had a faster than normal battery consumption when the tab was left alone. I made a 30 mins test Wifi OFF, Flight Mode On, ...
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3answers
6k views

Get root or re-install the OS without a USB cable?

Usually, the guides for getting root or re-installing the OS on an Android device (I have a Samsung Galaxy S, which I'm mostly inetersted about) tell to flash the device from another computer through ...
8
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5answers
6k views

Why are there so many different Android kernels (technical answer please)

Isn't Android a common kernel that is used across all devices? For example CentOS will install on Dell, HP, and a variety of other hardware. Sure there are different modules but it's still CentOS ...
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1answer
594 views

Is the kernel flashed automatically from CWM?

By this, I mean, while flashing a firmware (update.zip) from ClockworkMod recovery, is boot.img also flashed or do I need to use fastboot separately?
2
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2answers
7k views

Extract boot.img

I have pulled boot.img from my phone's CWM backup. How do I extract it? I tried split_bootimg.pl. But throws an error - Android Magic not found in boot.img. Giving up.
3
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3answers
17k views

How to find out if my Device's Kernel has Loop Device Support

I would assume most all of you know why I am asking this, but for those who don't, Loop Device Support of a Kernel on an Android device is utilized to mount a Linux Distro IMG file (Ubuntu or Debian, ...
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0answers
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What are the technical differences between bootloader, recovery, kernel and ROM? [duplicate]

Possible Duplicate: What is the difference between: Rooting, Jailbreak, ROM, Mod, etc.? I'd love a reference (or an explanation if anyone has the time) on what characterizes these different ...
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1answer
961 views

Flashing an official Samsung galaxy tab kernel

I have a Galaxy Tab 10.1 (GT-P7510) with Android 3.2 and kernel 2.6.36.3 installed. I'm building a customized kernel using Samsung's official kernel source code for research purposes. I do not need to ...
3
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0answers
860 views

Can someone recommend a ROM and kernel for the Galaxy S2 that works fully? [closed]

I have installed a kernel and ROM onto my Samsung Galaxy S2. However, it's been giving me a lot of problems. First the Compass didn't work, then when the compass was fixed by installing a patch the ...
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1answer
816 views

rmt_storage keeps polling and spam logcat

In logcat I can see rmt_storage keeps doing something every 2/3 seconds I/rmt_storage(15279): rmt_storage open success I/rmt_storage(15279): rmt_storage shared memory ioctl success ...
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2answers
2k views

Where can I get the stock Android Kernel configuration for Galaxy S3 running ICS?

Question: We are trying to find the kernel configuration on a currently running Samsung Galaxy S2, with Android 4.0.3 (Ice-Cream Sandwich). We do not wish to root the phone. We checked /proc/config.gz ...
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0answers
505 views

Boot custom kernel via phone

I can currently boot a custom kernel (without flashing it) for test purposes by using fastboot on my computer via: cmd> fastboot boot customkernel.img Which works great. I've found great kernels ...
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0answers
243 views

Cannot turn on LG GT540 due to kernel panic

I cannot turn on my LG GT540. When I try to turn it on it displays a message which says: Linux Kernel Panic Process swapper (pid : 1 ) What does this mean? How can I fix it?
2
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1answer
434 views

Samsung Galaxy S2 bricked?

I own a galaxy sII. 3 weeks back, I downloaded and flashed the MIUI ICS rom on my phone. A week later I tried to update the ROM through ROM Manager. Everything went fine except when after flashing the ...
3
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1answer
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Android USB Gadget Driver

I am trying to get Ethernet over USB working for my Nexus S. I am running Ice Cream Sandwich v4.0.3 and have rebuilt the kernel with USB Gadget support turned on. When I connect the phone to my ...
3
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1answer
180 views

Can you install custom kernels on DroidX running CyanogenMod?

Can you install custom kernels on DroidX running CyanogenMod? Or does the locked bootloader prevent that?
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1answer
238 views

Which kernel versions does the udev exploit work?

Which kernel versions does the udev exploit work? Upon googling this, I found articles claiming that it works on Android 2.1 and maybe 2.2, but there is no information about the kernel versions.
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2answers
244 views

What parts of the regular Linux graphics driver architecture is used in Android?

For example, could the Nouveau driver be used and provide hardware accelerated drawing when Android is compiled for x86?
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1answer
430 views

Android 2.2 Galaxy S SGH-T959 kernel update with netfilter

I can't seem to find a kernel update for this phone that would include netfilter. Does anyone know a different way to install netfilter on this phone?
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2answers
392 views

Kernel HTC Hero

I have an HTC Hero GSM with CyanogenMod 7.1.0 (stable). Before i had elelinux mod (http://forum.xda-developers.com/showthread.php?p=10956118) This thing is, after installing CyanogenMod i still have ...
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1answer
269 views

Create Defy Kernel Backup

I own a Motorola Defy and it is running 2.2.2. I was wondering if i could create a backup of my kernel by any means! Is there any software/application/method which can help me achieve this? Thanks
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2answers
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Install zImage on Android 2.2 devcie

How do I install zImage on Android 2.2 device? I have one galaxy tab 7.0 and one NVIDIA Tegra 250 delvel kit. I was trying to using fastboot on NVIDIA Tegra 250 but I failed. I could load zImage ...
4
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1answer
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How to install kernel module for android?

I currently have a custom kernel and ROM installed on my android device. The kernel I'm using comes with a separate download with kernel modules that you are to install yourself if you want. However ...
2
votes
1answer
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Can I flash a kernel without flashing a ROM?

Does flashing a new kernel require flashing a new ROM? Will flashing a new kernel wipe the data? Because if so, I might as well flash a new ROM. How can I see which kernels are compatible with ...
2
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0answers
2k views

Does Cyanogenmod Kernel support loop devices?

Since I am failing to mount a Nandroid image and since I have read that the kernel needs to support loop devices for that I need to know if anybody has managed to mount a loop device on CM7 or ...
2
votes
1answer
336 views

What is special/different about CyanogenMod's kernel? (especially compared to. DroidX GB kernel)

In an Phandroid article announcing the first successful attempt to run CyanogenMod on DroidX thanks to cvpcs's breakthrough, I noticed the following quote: CyanogenMod 7 will unfortunately be ...
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2answers
2k views

Is there any userspace NFS client for stock android kernel(Galaxy Tab)?

I have tried kernel-mode things but it is not going to work. Actually i've reached my limit for seeing errors in one day: mount: unknown filesystem type 'nfs' mount.nfs: No such device and many ...
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1answer
607 views

Can not flash LK2.08 for original firmwares on my spica

Can not flash LK2.08 for original firmwares. I try like this: http://www.addictivetips.com/mobile/root-samsung-galaxy-spica-i5700-with-leshaks-kernel/ i am using this kernel: ...
2
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1answer
2k views

Baseband and radio in Android

In the below picture 1, It seems that the radio firmware don't need a linux driver in Android, It just need a user space shared library, is it? 2, what is baseband?
52
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1answer
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What linux distribution is Android based on?

Did Google use some existing distribution (Debian, Red Hat, etc.) to create Android, or did they use the bare essentials (kernel, file system and some mandatory files)?
3
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1answer
642 views

Flashing a New Kernel

If I'm going to flash a new Kernel with ROM Manager Pro, do I need to reinstall my MOD, delete my data, or delete my cache? I am running CM 6.1 and want to flash one of ChevyNo1's kernels but will ...
75
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8answers
23k views

What is the difference between: Rooting, Jailbreak, ROM, Mod, etc.?

What is the difference between: Unlocking the bootloader (prerequisite for doing many, though not all, other things below) Rooting Jailbreaking ROM NAND and Nandroid Operating System Mod (e.g. ...
14
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5answers
2k views

Where can I find a comparsion of non-offical cooked rom/firmware of Galaxy S i9000?

I've been searching around for the topic these few days. However, I am getting into a problem of information overflow - there are too many different version and custom kernal around. Most of them are ...
2
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2answers
282 views

Where are custom kernels being flashed to in internal memory?

I've unzipped zip files for custom kernels and noticed that the majority of the files that are being applied are in a /kernel folder. However that folder is unlisted when listing the root directories ...