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Pidora 2014 qemu

3,985 bytes added, 13:47, 4 June 2014
Pidora QEMU
{{Pidora}}[[Category:Pidora18 (Raspberry Pi Fedora Remix)]][[Category:Raspberry PiPidora]][[Category:Pidora 18 (Raspberry Pi Fedora Remix)]]
WARNING - THIS PAGE IS EXTREMELY ROUGH AND IS NOT FINISHED OR BEEN TESTED FOR CORRECT INFORMATION. USE AT YOUR OWN RISK. THE FORMATTING IS ALSO SUPER BROKEN AS IT WAS NOT INITIALLY WRITTEN IN WIKI FORMAT. WILL FIX SOON.
= Pidora QEMU =
This is a new page that will be used as a kind of tutorial for running qemu on {{Admon/important| Warning! | Please read the piinstructions carefully, getting networking workingthere may be errors or wrong information, and, using a pidora image. Additionally the plan is to use this setup to make future composes for pidora 2014, or allow pidora users to create/user modified kickstart files to make their own imagesbe careful if you don't know what you are doing.}}
This tutorial page is basically just using the here to assist people who would like to run Pidora 2014 in a QEMU environment. This tutorial found on has been adapted from this site(website: http://xecdesign.com/compiling-qemu/), with some added steps specifically for pidora.
This setup is done completely on fedora 20. If you are using ubuntu/debian it might be easier to use the site above.== Pidora QEMU Compose ==
This setup avoids the installation of the newly compiled qemu, so Using Pidora in a QEMU environment has some important restrictions to note. The model that your system stays cleanis used to emulate Pidora has a hard coded restriction on how much RAM it can use (256 MB). The programs we use (livemedia-creator) for composing new images require much more RAM, which makes the Pidora QEMU Environment a bad place to try and keeps your system and any already install qemu instances managed by yumcreate images.(See compose on Fedora Arm QEMU)
Some of = Pidora QEMU Setup =The two stages to setting up Pidora QEMU involve, getting all the commands may need rootfiles (kernel, image) and installing the QEMU environment.
== Getting The Files ==<pre># use whatever Choose the directory you'd liketo put both the image and the compiled QEMU software
pidora_dir=/data/pidora-qemu
# Make the directory and enter it
mkdir ${pidora_dir}
cd ${pidora_dir}
 
# Download the QEMU kernel
wget http://xecdesign.com/downloads/linux-qemu/kernel-qemu
 
# Download the Pidora image
wget http://pidora.ca/pidora/releases/20/images/Pidora-2014-R1.zip
# Unzip the image file
unzip Pidora-2014-R1.zip
 
</pre>
 
== Getting QEMU ==
 
There are multiple ways to get qemu-system-arm. You can compile a new version with a few select flags, or you can try installing the version that your distribution has already compiled. It is possible that the QEMU packaged in your distro was not compiled with the proper flags, however it seems to work on the latest Fedora 20.
 
=== Package Install ===
This method should probably be good enough to run Pidora in Qemu. I have only tested on Fedora 20, and it works.
 
<pre>
yum install qemu-system-arm
</pre>
 
=== Manual Compile ===
If the above package does not allow you to boot Pidora through QEMU, you can try the manual instructions below. This will allow you to use the QEMU software without actually installing it on your system (I don't like installing source files that are not managed by yum).
 
The manual compile will require the dependencies for the program to already be installed. Below is a list of packages that might be required (I think only the devel ones are needed?).
<pre>
# Install Dependencies (not sure if the non-devel packages are required?)
yum install gcc-++ zlib zlib-devel SDL SDL-devel pixman pixman-devel libfdt-devel libtool glib2 glib2-devel
</pre>
 
Compile qemu-system-arm:
 
<pre>
# Choose the directory for the compiled QEMU software
pidora_dir=/data/pidora-qemu
 
# Make a new directory for QEMU and enter it
mkdir ${pidora_dir}/raspidev/
cd ${pidora_dir/raspidev/
 
 
git clone git://git.qemu-project.org/qemu.git
cd ${pidora_dir}/raspidev/qemu/
# Before you can continue, you will probably need to install a bunch of build deps# I will show all Configure the packages I needed to install options for the raspberry pi./configure--target-list="arm-softmmu arm-linux-user" --enable-sdl --prefix=/make to finish successfully# Note: I do NOT make installusr
# I think Finally, compile itmake </pre> = Boot Pidora in QEMU =Make sure you run the steps in "Before Booting" and "The First Boot" before you start Pidora for the first time to avoid issues. == Before Booting =={{Admon/important| Warning! | Running the command "dd" can be dangerous and could result in data loss if not used properly.}}Make sure that you add some more space to the image file. Depending on what you might only want to do with the Pidora image you may want more space. Replace the value in the variable size, with the number of GB to increase the size of the image with.<pre># Choose the directory for the compiled QEMU softwarepidora_dir=/data/pidora-qemu # Size = GBsize=4  dd if=/dev/zero bs=1G count=${size} >> ${pidora_dir}/Pidora-2014-R1.img</pre> == The First Boot ==At this step we need to install boot Pidora, start first boot, and allow it to automatically resize the partition inside the image to the right size. This will only work if you already increase the size of the devel packages image in the below previous steps. <pre># Choose the directory for the compiled QEMU softwarepidora_dir=/data/pidora-qemu # This is the command.to boot the Pidora Image using the compiled version of QEMUyum install gcc${pidora_dir}/raspidev/qemu/arm-++ zlib zlibsoftmmu/qemu-devel SDL SDLsystem-devel pixman pixmanarm -devel libfdtkernel ${pidora_dir}/kernel-devel libtool glib2 glib2qemu -develcpu arm1176 -m 256 -M versatilepb -no-reboot -serial stdio -append "root=/dev/sda2 panic=1 rootfstype=ext4 rw" -hda ${pidora_dir}/Pidora-2014-R1.img</pre> == Pidora Graphical Boot ==Run the commands below. OR
# Hopefully now, you have all Copy the dependencies on commands below to a file called: start_pidora_graphicalAnd execute the systemfile: bash start_pidora_graphical
.<pre>#!/configure --target-listbin/bash# Choose the directory for the compiled QEMU softwarepidora_dir="arm-softmmu arm/data/pidora-linux-user" --enable-sdl --prefix=/usrqemu
make# This is the command to boot the Pidora Image using the compiled version of QEMU${pidora_dir}/raspidev/qemu/arm-softmmu/qemu-system-arm -kernel ${pidora_dir}/kernel-qemu -cpu arm1176 -m 256 -M versatilepb -no-reboot -serial stdio -append "root=/dev/sda2 panic=1 rootfstype=ext4 rw" -hda ${pidora_dir}/Pidora-2014-R1.img</pre>
# The newly compiled qemu program should now have compiled successfully== Pidora Multi-user Boot ==Run the commands below
# The binary can be found in: ${pidora_dir}/raspidev/qemu/arm-softmmu/qemu-system-armOR
# As per XEC's instructions I did Copy the following(though I used vi)commands below to a file called: start_pidora_multi_userAnd execute the file: bash start_pidora_multi_user
<pre>
#!/bin/bash
# Choose the directory for the compiled QEMU software
pidora_dir=/data/pidora-qemu
# This is the command to boot the Pidora Image using the compiled version of QEMU${pidora_dir}/raspidev/qemu/arm-softmmu/qemu-system-armqemu-system-arm -kernel ${pidora_dir}/kernel-qemu -cpu arm1176 -m 256 -M versatilepb -no-reboot -serial stdio -append "root=/dev/sda2 panic=1 rootfstype=ext4 rw init=/bin/bash3" -hda ${pidora_dir}/Pidora-2014-R1.img</pre>
# Wait for the new qemu instance to boot for the first time, then do the below instructions
nano /etc/ld.so.preload
# Put == Boot with SSH Enabled ==There is a # option you can specify in front of the first line so boot command that it looks like will allow a port to be forwarded from a localhost to the port on the pidora machine. For example, to connect to the raspberry pi qemu environment with ssh you would add thisline:#/usr/lib/arm<pre>-linux-gnueabihfredir tcp:2222::22</libcofi_rpi.sopre>
Press ctrl-x then y then enter This will redirect all traffic from localhost on your main machine through the port 2222 to save and exit.(Optional) Use steps 2 to 4 above to create a file /etc/udev/rules.d/90-the raspberry pi qemumachine port 22.rules with Make sure ssh is running on the following contentqemu machine:KERNEL=="sda", SYMLINK+="mmcblk0"<pre>KERNEL=="sda?", SYMLINK+="mmcblk0p%n"systemctl enable sshd # To make sshd start at boot timeKERNEL=="sda2", SYMLINK+="root"systemctl start sshd # To start sshd</pre>
So you can connect with ssh by running the following command:<pre>ssh -p 2222 root@localhost # Now just close the window or shut it downConnect to raspberry pi qemu over ssh</pre>
=== Multi-User Boot With SSH ===
This is an example of the above multi user boot with the added redirect option to enable ssh.
<pre>
#!/bin/bash
# Choose the directory for the compiled QEMU software
pidora_dir=/data/pidora-qemu
# At this point it's probably a good idea This is the command to increase boot the Pidora Image using the size compiled version of the QEMU${pidora_dir}/raspidev/qemu/arm-softmmu/qemu-system-arm -redir tcp:2222::22 -kernel ${pidora_dir}/kernel-qemu -cpu arm1176 -m 256 -M versatilepb -no-reboot -serial stdio -append "root=/dev/sda2 panic=1 rootfstype=ext4 rw 3" -hda ${pidora_dir}/Pidora-2014-R1.img file. If you don't it might cause some errors when you start first boot and it tries to resize your partitions and filesystem.</pre>
# WARNING: === Graphical Boot With SSH ===This next command can be very dangerous, use at your own risk! Change is an example of the count=# number to above graphical boot with the number of GB you would like to add added redirect option to the size of the image. The command below should increase the size by 4 GBenable ssh.<pre># You may be fine with 1GB more or maybe, if you are going to try composing your own images, much much more!/bin/bash# Choose the directory for the compiled QEMU softwaredd ifpidora_dir=/dev/zero bs=1G count=4 >> ${pidora_dir}data/Pidorapidora-2014-R1.imgqemu
# you should now be able to run this This is the command to start the pidora instance and get to first boot. This is the same command above, except without Pidora Image using the init=/bin/bash part.compiled version of QEMU${pidora_dir}/raspidev/qemu/arm-softmmu/qemu-system-armqemuarm -system-arm redir tcp:2222::22 -kernel ${pidora_dir}/kernel-qemu -cpu arm1176 -m 256 -M versatilepb -no-reboot -serial stdio -append "root=/dev/sda2 panic=1 rootfstype=ext4 rw" -hda ${pidora_dir}/Pidora-2014-R1.img</pre>
= Issues =
Some issues can occur during the above processes. Some fixes are listed below.
== Manually Resize Pidora ==
{{Admon/important| Warning! | Please make sure you follow all instructions properly, do NOT run fdisk on your main system. fdisk should only be run on the pidora qemu system, otherwise you may break your system.}}
# PROBLEMS: When I wrote this tutorial I accidentally ran first boot before I resized my image file, which cause a bunch of problems. I shut down the qemu instance after running first boot, and rebooted it in multi-user mode. This is done by adding a 3 to the arguments like in the below command.
${pidora_dir}/raspidev/qemu/arm-softmmu/qemu-system-armqemu-system-arm -kernel ${pidora_dir}/kernel-qemu -cpu arm1176 -m 256 -M versatilepb -no-reboot -serial stdio -append "root=/dev/sda2 panic=1 rootfstype=ext4 rw 3" -hda ${pidora_dir}/Pidora-2014-R1.img
#WARNING: The following is done on If for some reason the qemu machine. This only needs to be done if Pidora Partitions did not resize after running first boot and you need did run the dd command above to manually resize increase the partitions on size of the image because you forgot to increase , then we will manually resize the img file size before you started first bootsystem here.
First start up Pidora QEMU in Multi-user:<pre># Assuming that you ran Choose the dd command above to increase the images size, you now need to manually modify the partitions size on directory for the compiled QEMU softwarepidora_dir=/data/pidora image.-qemu
# On This is the command to boot the Pidora Image using the pidora compiled version of QEMU${pidora_dir}/raspidev/qemu instance that is booted in multi user modefdisk /arm-softmmu/qemu-system-arm -kernel ${pidora_dir}/kernel-qemu -cpu arm1176 -m 256 -M versatilepb -no-reboot -serial stdio -append "root=/dev/sda>d>2>nsda2 panic=1 rootfstype=ext4 rw 3" -hda ${pidora_dir}/Pidora-2014-R1.img</pre>(press enter for default)
>(press enter for Log in to root on Pidora, the default)>(press enter for default)root password should be "raspberrypi" if it was not changed. Make sure you are running the next commands on the QEMU Pidora environment.
<pre># start fdisk programfdisk /dev/sda# list all partitions, note the start location of partition 2p# delete a partitiond# select partition 22# create a new partitionn# select partition 22# select start location, default should be the start location from above<press enter for default># select end location<press enter for default>w# Shutdown write/save the pidora qemu machinechangeswreboot<pre>
# Start After the pidora qemu instance again and Pidora restarts, run the following command when it bootsto finish the resize setup:<pre>
resize2fs /dev/sda2
</pre>
# Now the Pidora should now have QEMU environment has been successfully extended to the proper root filesystem max sizeof the image file.
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