I'm new to OpenWRT. I read that firewall3 (fw3) is the default app that works with UCI and it is some kind of wrapper for iptables.
On my SDK, through menuconfig, I selected iptables and iptables6 but when I burn image on my device, fw3 is missing as also /etc/config/firewall and /etc/init.d/firewall.
What package do I need to install? In my menuconfig there I didn't find any package named fw3.
Can anyone help me with this?
You need to install firewall package (located in Base System section)
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I am working on a networking project and for some reason I need to modify the source code of the bridge that is used in Linux. I was wondering how to add http://lxr.free-electrons.com/source/net/bridge/ source codes into my Ubuntu distribution.
I am having Ubuntu 16.04 with a 4.4.0-64-generic kernel version. In my : /usr/src/linux-headers-4.4.0-66/net/bridge there is just : Kconfig and Makefile files with netfilter folder.
Could you please point me out to some solutions ?
Thank you in advance.
If you are looking to get the sources code of the kernel that you are currently running you can:
apt-get source linux-image-$(uname -r)
Modify the driver code and then compile.
I have gone through the JBoss FUSE guide in official guide but I could not see any details regarding capabilities of install FUSE in Linux server. Have any one try this before? I have not seen any document regarding this, Appropriate if some experienced person provide feedback about this.
Is it possible to install the FUSE in Linux server for example Ubuntu 16.04.1 LTS ? If it's possible is there any reference document guideline ?
Yes it's possible to run the FUSE on linux without any issue. Only thing is it is required to install JDK and its better to have maven installed in your PC as well.(Note that path variable needed to be updated after install JDK and maven). If you haven't install please go through following guide lines.
01) Install JDK in linux
02) Install maven in linux
After you installed those two then you need to download the relevant zip file from JBoss Fuse official site. Then extract the zip file in to desired location. (This location can be any place you want to install in folder structure)
Open the command line and go to bin folder on extracted folder.
then Type following command and press enter
./fuse
As show on below image
Then you will see similar interface to below(Usual fuse loading interface ).
Since there is not much dificulties on this I don't think there will be any documentation regarding this. I believe this steps will help you to setup JBoss Fuse in linux environment.
I need to add new functionality to a chinese Linux-based time attendance clock. More specifically I need to make It SNMP capable, which is not available by factory default.
After some research I found a login:password which worked for the TelNet login and managed to get inside the system with root privileges.
The first thing I did was to figure out which Linux distro was It running:
cat /etc/issue throws this:
"PXA Linux Preview Kit
Kernel 2.6.29 on armv5tejl"
I did a quick google search and found that
"PXA Linux is a port of the Linux kernel for PXA based processor based devices and machines."
I dont understand why It's running a PXA Linux Preview Kit on an armv5tejl.
I gave no importance to this fact, and got to the next step: finding which package manager has this system:
I tried several commands:
apt-get, aptitude, rpm, dpkg, yum, slapt-get, ipkg, and several others. None of them worked.
I found that the system had Busybox installed. More specifically BusyBox 1.15.3. In this BusyBox I couldnt find any of those commands. I found that BusyBox does implement rpm and dpkg but this version doesnt have them.
The only command which seems to be "software installation related" I found was the command "install". From BusyBox docs:
"install [-cdDsp] [-o USER] [-g GRP] [-m MODE] [source] dest|directory
Copy files and set attributes"
But probably it doesnt replace the package manager tool. I think that I need to get a way to install dpkg or rpm, and then use them to install the SNMP packages I want. As I read, the lowest level package installation tool is dpkg so I don't have a clue on where to begin.
Can someone give me some advice on how to approach this issue? How can I install a package with no package manager possiblities at all?
You won't be able to install additional software to that system via a package manager. Such devices aren't designed like that. The firmware that was shipped with the device is all there is. What would be the incentive of the device manufacturer to maintain a package repository with general purpose linux software?
But not all hope is lost. You can of course try to compile the needed software yourself (and by that extend the firmware). For that to work you will need a suitable ARM cross compiler (GCC). Via static linking your SNMP package won't have any dependencies to the library versions already on the device (so you don't need a sysroot matching the libraries on the device).
I want to run QT-Creator on my Odroid XU3 (ARM Architecture with Lubuntu 14.4) and build an application with it. I've read a lot of on the internet to figure out how to do this but haven't been successful yet. I tried to follow these instructions https://wiki.qt.io/ODROID-XU3 but didn't understand few things.
It states that I need to install some dependencies. I followed the given hyperlink on this site and installed the dependencies using following commands:
sudo apt-get build-dep qt5-default
sudo apt-get install "^libxcb.*" libx11-xcb-dev libglu1-mesa-dev
libxrender-dev libxi-dev
When I searched for my qt5 folder, I could only find qt4 in user/share. What did I do wrong?
It states that I have to setup a toolchain and a sysroot. Do I have to do this only if I want to cross-compile, so compile on a different machine for my Odroid XU3, or also if I just want to compile on Odroid itself?
Let's say I want to setup the toolchain. According to this site I should copy the raspberry pi toolchain (or a different one) into the folder ~/Code/Odroid/toolchain. Problem is I don't see such a folder in my home directory on my Odroid. Should I mkdir one?
Let's also say I want to setup the sysroot, I don't get the part "One is to mount the ODROID-XU3's SD Card or eMMC on your development machine and either make a copy or a link to ~/Code/Odroid/sysroot". Am I right in assuming that I should copy the content of my SD-card to this folder on my developing machine?
Where should I build my QT now - on my development machine or Odroid? (sorry for that stupid question)
What If I want to make it simple and build everything on Adroid XU3 assuming that I have plenty of time and resources. I tried to first install qt and qt creator afterwards but as I started qtcreator, there was no compiler preconfigured and also the QuickView was missing. The terminal was also mentioning that the toolchain is missing. I struggled a lot in order to add these missing components but failed.
Thanks in advance!
to your second point: you can compile it on the Odroid or on your PC. But you should take a look at this: https://wiki.qt.io/Category:QtonPi it should be pretty the same on the Odroid.
I have a project that runs on Debian and uses many packages provided from the Debian repositories.
Because of demand, I've looked into porting the project to CentOS, but found that many of the packages I require are completely missing - at least 10 dependencies would have to be compiled manually at install time on the users machine.
My question is, what is the best way to create an installer for the user's machine? Should I use automake tools (with the standard ./configure, make, make install), to compile the required libraries, or is this a non-standard approach. Note that my app doesn't actually need to be compiled since it is written in Python, so is it weird to do a "make", when you're not compiling your own app?
Should the configure script just warn the user that package X is missing, and let them handle the rest?
Should I roll my own dependency checker by runng pkg-config manually a few times for each library required, and exit if something is missing?
I'm quite new to this, so any tips to get me moving in the right direction are appreciated.
Edit: I am familiar with RPM and yum for red hat base distros, but CentOS is missing many multimedia packages that I require. An example of one of my package dependencies is "liquidsoap" which is a programmable audio engine: http://savonet.sourceforge.net/
This is available on Debian, but not Redhat/Centos
See this link on CentOS package management.
http://wiki.centos.org/PackageManagement/Yum
CentOS is redhat based and does not use .deb packages by default. However apt package management has been ported to tons of platforms, you may be able to use a port for centOS
If you use YUM whatever packages you need will be there for your application as redhat distros need all the same things that any other distro does.
EDIT: To get the details out of comments
Packages not available on the target platform either have to be built (possibly as a port) on the target platform and then shipped in the ported package (in this case YUM), or code needs to be modified and forked to use packages which already are available on the target platform. The choice depends on which is worse, or which is even possible given your constraints.