Develop Bugs

[OFFtopic] Linux or Windows?

I know this is in the wrong place and i was hoping some people can help. I want to learn Java.
I don't know if i should use windows or Linux, my PC isn't the fastest thing in the world lol. Any help?
Sent from my SPH-D710 using XDA App

Windows with eclipse works fine.
Edit: For a bit more help.
I dont know if you running 32 or 64 bit, but those links are the download pages.
JDK: http://www.oracle.com/technetwork/java/javase/downloads/jdk-7u2-download-1377129.htmll
Eclipse: http://www.eclipse.org/downloads/packages/eclipse-ide-java-developers/indigosr1
Sent from my Epic™ 4G Touch

The only time I would recommend choosing windows over Linux is if you are a hardcore computer gamer (and based on your computer not being "the fastest thing in the world" I would assume you are not...). Linux will be quicker, more powerful, and much easier to configure. Try Ubuntu and Linux mint 12. I prefer Linux mint. Its usually more user-friendly and more compatible with most things and is built off the Ubuntu source so you can run Ubuntu specific apps/programs. Linux is also a safer software to run bases on the file structure and cosing as far as viruses/spyware are concerned. And Linux is free. Did I mention that you should be running Linux?

basketthis said:
The only time I would recommend choosing windows over Linux is if you are a hardcore computer gamer (and based on your computer not being "the fastest thing in the world" I would assume you are not...). Linux will be quicker, more powerful, and much easier to configure. Try Ubuntu and Linux mint 12. I prefer Linux mint. Its usually more user-friendly and more compatible with most things and is built off the Ubuntu source so you can run Ubuntu specific apps/programs. Linux is also a safer software to run bases on the file structure and cosing as far as viruses/spyware are concerned. And Linux is free. Did I mention that you should be running Linux?
Click to expand...
Click to collapse
+1 for linux

[Q] Linux question

How does I set up teh linux?

1- you dont know anything about linux. go ubuntu. we will tweak it after that. version 10.xxx (cant remember exactly).
2- you've used linux before and feel comfortable when thinking about it. go ubuntu/fedora.
3- no worries. you can troubleshoot alone when leenucks acts funny, you su everyday. go arch linux.
bottom line, it all comes to a few package versions.
make, python2, git, jdk, maybe a few others, need old versions. even in ubuntu, if you would like to start from a more updated base image, you'll need to downgrade. arch linux allows this with more freedom, since its more modular.
i havent used fedora for a few years now. used it back when red hat quit doing desktop images, didnt stay long and switched to slack.
i prefer archlinux because it's 300mb'ish iso, allows lvm, luks from live cd, doesnt have a text-based installer but install scripts, rolling release system (prebuilt packages/packages built from src using abs/aur, testing repo), customizable/modular, cli package manager (pacman ), systemd, grub2..
basically, if you like bleeding edge and power to yourself, try archlinux. read the wiki, begginer guide, install guide. first time i did it, i used another pc to help me go through all the steps.
sent from my i9250

When you're interested in Linux you can take a easy to use Distro like Ubuntu.
Packetmanagement resolves dependencies autocratically and nearly each software is available as a precompiled Packet
Also such Distros are running 32 and 64bit Programms out of the box.
If you want to learn linux in deep (and have enough time to solve issues) i recommend a Distro like Arch or Slackware.
I use Slackware64 and learned a lot about Linux and the packet and library dependencies.
Because the Packetmanagement does not resolve dependencies.
Even GUI Tools are rare on this Distro, you have to struggle with config files.
Slackware is a pure 32 or 64bit Linux (can be build to a Multilib Linux).
For Example the Android SDK mainly uses 32bit.
Maybe you should try some Distros and use that one you feel familiar with.
Also there are good Resources out in the net which you should read (Filesystem Hierarchy Standard, File Permissions, Basic Shell Tools)
Google and en.wikibooks.org/wiki/LPI_Linux_Certification would be a good starting point.
You could also try some Live-CDs, mess with it and when all went wrong only reboot.
Good Luck

Indeed, start Ubuntu, you can even stay with it if you like. But Arch and the install guide give you a good grasp on how Linux works.
Of course, you can develop apps in Windows or OSX, and OSX and Linux are the only two that allow you to build Android from source (basically ROM development). You also need to know Java to develop Android apps, less fun than screwing around with Ubuntu lol.
Good luck!
Sent from my Galaxy Nexus using xda app-developers app

Thanks for all the replies guys! Wish me luck lol.

RoyJ said:
Thanks for all the replies guys! Wish me luck lol.
Click to expand...
Click to collapse
Just to give one final thought, I think Slack would be a better learning experiencing, since it's even more close to Unix than Arch. With Arch you learn a lot, that's a fact, but with Slack you understand even how libraries and dependencies work, kinda the hard way, since you don't have a package manager to take care of it for you.
I think both might be a steep (maybe too steep) learning curve, and Ubuntu will be easier but, Ubuntu does things more their way. It's Linux, but things are different. Eventually, you'll know what i mean.
sent from my i9250

Thanks for the input. That's something to look into for sure. I am in no rush to just jump in and try it. I'd really like to learn everything on a basic level like that first.
I'm trying to get the research down before I start messing with the development.

[Q] Linux on Nexus 7 (2013)?

Hello, everybody. Does our device has Linux distributions? Ubuntu Tuch not interested.

**Menos** said:
Hello, everybody. Does our device has Linux distributions? Ubuntu Tuch not interested.
Click to expand...
Click to collapse
I don't want to troll, but Android is already Linux based.
So i've seen Firefox OS ports, and maybe an Ubuntu desktop port, but i'm not remember where.
Sorry.
Edit : I've tested on my devices "Complete Linux Installer" In fact it will chroot any purposed distros. Maybe it will help you ?
VP.

linux loves the nexus 7!
Yes there are linux ports for Android, but specifically for the Nexus 7 well that is a different story...
There are linux ports like debian linux, ubuntu linux, fedora linux, and arch linux that you can install with a very nice app called "complete linux installer" which can be downloaded from the google play store.
Now those versions of linux run on top of android in a chroot environment.
However, if you want a security based linux operating system then there is a really cool project going on right now called "kali pwnpad" which is based off of "PwnPad" from the great guys over at pwnie express -> https://www.pwnieexpress.com/penetr...ity-assessment-products/sensors/pwn-pad-2014/
Now if you are like me and don't have/want to spend $1,000+ dollars for a PwnPad tablet (basically a modified nexus 7 2013) then you can head over to the XDA thread for Kali PwnPad here -> http://forum.xda-developers.com/showthread.php?t=2577356
That thread will show you how to install Kali PwnPad on your Nexus 7 2013 tablet and you can go directly into Kali Linux (aka Backtrack Linux) through any of the apps which will put you into a chroot linux environment. A big bonus is you can use usb wifi devices or multiple usb devices with Kali PwnPad so you can use linux programs like, aircrack-ng, wifite, kismet, metasploit, openvas. social-engineering toolkit, and others!
That project is a lot of fun, and Kali PwnPad has just added bluetooth to its latest kernel so you can now use bluetooth usb devices for all of your bluetooth hacking needs. Devices like -> ubertooth-one, and the Parani-UD100
Also...don't be so quick to dispose of Ubuntu Touch. There is a lot of work being done with Ubuntu Touch for the Nexus 7 2013 and it is a lot of fun to use!
I hope this has been helpful. and if you have any questions on Kali PwnPad drop by thread and ask us a question!
-droidshadow

[Q] best way to instal linux on tab pro 12.2

Hello all,
I'm trying to figure out the best way to get a linux distro on Tab Pro 12.2.
I'm most likely going to install puppy or dsl with X support, as its smaller and quicker that most others.
so i'm looking for the fastest way to get Linux running on the Tab Pro 12.2
can I run it inside of Android? and or Dual boot?
Has anyone used Qemu or Bochs or ???
I see there's some Linux installs on google play. any of those?
Are there any other well support Linux distros that are preforming well?
Thank you!

It would be great Imo. Kernel/Samsung hardware is security enforced. ... think it is not where it needs to be. ...shame because this tablet is pretty smoking. How cool to see other Linux or puppy running on this hardware

canezila said:
It would be great Imo. Kernel/Samsung hardware is security enforced. ... think it is not where it needs to be. ...shame because this tablet is pretty smoking. How cool to see other Linux or puppy running on this hardware
Click to expand...
Click to collapse
From what i'm reading, it has a great potential to have linux on it.
I've been thinking the best way is via busybox -> chroot -> distro on SDCard so it runs inside of android?
I was thinking puppy, or Tiny core Linux, or maybe Archlinux, because they have a kernel that works with the Samsung Exynos 5420 1.9 GHz octa-core.
But i'm not to sure how I should start.
Rooting it is first thing. So that gives me chroot and busybox, right?
and busybox works with many distros, like tiny core linux, then all I need to do is get busybox to mount the SD Card with the Linux distro, and then chroot it, and start some init scripts. Do I have it right?
any help in the right direction would be appreciated!
Thank you!

technobuddha said:
From what i'm reading, it has a great potential to have linux on it.
I've been thinking the best way is via busybox -> chroot -> distro on SDCard so it runs inside of android?
I was thinking puppy, or Tiny core Linux, or maybe Archlinux, because they have a kernel that works with the Samsung Exynos 5420 1.9 GHz octa-core.
But i'm not to sure how I should start.
Rooting it is first thing. So that gives me chroot and busybox, right?
and busybox works with many distros, like tiny core linux, then all I need to do is get busybox to mount the SD Card with the Linux distro, and then chroot it, and start some init scripts. Do I have it right?
any help in the right direction would be appreciated!
Thank you!
Click to expand...
Click to collapse
I don't know what the best way to install Linux distro is but I've had some success with Linux on Android (LOA) on my Galaxy Note 3 and Galaxy Tab Pro 8.4. Besides rooting your device you need to have SELinux set to permissive. Only way I've had success getting this setting was to flash a kernel that has it by default. Couple other things about LOA. It uses vnc so you can have a desktop enviroment. I use the app Jump for vnc. Also, as far as I know, sound does not work for LOA. LOA will install it's own version fo busybox. Here is a screenshot of Fedora running on my Pro 8.4. Anyways, I know you want to install Linux on the Tab Pro 12.2 but maybe my experience on the 8.4 will be helpful.

KVM Kernel

Hello everyone.
As in subject, I'm looking for a KVM Enabled Kernel, to flash on my device.
I'm looking for:
1) File to download
2) Commands to FastBoot
3) A way to ensure it works
Thanks in advance for any help.
Bye, Ivano.
P.S.: I forgot to mention, it's a ZE551ML Z00AD
P.P.S.: Nevermind, I successfully flashed KVM on device, but I can't use it on Limbo yet (I get an error about missing modules, but they're there).
Any help greatly appreciated.

I never got limbo to work, I have exact same model you have (Z00AD) and I've got kvm working with QEMU.. Limbo doesnt detect kvm properly it doesn't see the kernel modules loaded..
Theres a few guides on here how to use QEMU but as a VERY rough idea on what you need to do is:
Install a chroot linux on the phone (I used Linux Deploy to set up Ubuntu with Xterm)
After chroot setup, install qemu-kvm with apt. And on the Android OS install aSpice client from play store
Move the install images/hdd images to the phone storage (if preinstalled os hdd with Virtualbox or something)
Launch qemu with --enable-kvm and -cpu host to get kvm working, adjust other options as needed
Sorry for such a quick write up I'm busy atm, can help more later

My problem is that gpu won't work with chroot

You wont get gpu access with chroot, some devices have GPU's that have some support but unfortunately our
specific PowerVR chips dont have support.. using QEMU with kvm will allow you to still use all other parts of your hardware, and using spice will allow the use of the QXL video driver that provides some basic acceleration in the guest.
Either that or in the chroot compile and build your own version of qemu with -virglrenderer enabled, but the virgl option is very beta and may not work
Edit: Limbo is just a front end to QEMU so you wont have any new features that qemu doesn't have.. just Limbo is a port of qemu that's stripped down to work on Android

In this case, I don't need this anymore.
Thanks for your help.

What kind of 3D software/GPU needy task are you needing? Because in theory I've read that a linux chroot may still have some graphics acceleration on android devices due to some linux device firmware has OpenGL ES support (which is what runs on android devices, a subset of standard OpenGL) but how I personally am not sure.. I know there is GL4ES that supposed to allow OpenGL calls to be converted/linked to OpenGL ES calls but you would have to compile it from source as it's aimed at arm hardware..