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Using pidora Pidora in a qemu QEMU environment has some important restrictions to note. The model that is used to emulate pidora Pidora has a hard coded restriction on how much ram RAM it can use(256mb256 MB). However the The programs that we use(livemedia-creator) for composing new images require much more RAM, which makes the Pidora QEMU Environment a bad place to try and create images. (See compose on Fedora Arm QEMU)

# Choose the directory to put both the image and the compiled qemu QEMU software

# Download the qemu QEMU kernel

# Download the pidora Pidora image

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 QEMU packaged in your distro was not compiled with the proper flags, however it seems to work on the latest fedora Fedora 20.

=== Through Distro Packages Package Install ===

If the above package does not allow you to boot Pidora through QemuQEMU, you can try the manual instructions below. This will allow you to use the Qemu QEMU software without actually installing it on your system(I don't like installing source files that are not managed by yum).

<pre># Choose the directory for the compiled qemu QEMU software

# Make a new directory for qemu QEMU and enter it

= Boot Pidora in Qemu 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.

Make sure that you add some more space to the image file. Depending on what you want to do with the pidora 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.

# Choose the directory for the compiled qemu QEMU software

At this step we need to boot pidoraPidora, 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 image in the previous steps.

# Choose the directory for the compiled qemu QEMU software

# This is the command to boot the Pidora Image using the compiled version of qemuQEMU

=== Manually Resize Pidora =Graphical Boot ==If for some reason Run the Pidora Partitions did not resize after running first boot and you did run commands below. OR Copy the dd command above commands below to increase the size of the image, then we will manually resize a file called: start_pidora_graphicalAnd execute the file system here.: bash start_pidora_graphical

#!/bin/bash# Choose the directory for the compiled qemu QEMU software

# This is the command to boot the Pidora Image using the compiled version of qemuQEMU${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 3" -hda ${pidora_dir}/Pidora-2014-R1.img

Log in to root on pidora, the default root password should be "raspberrypi" if it was not changed. Make sure you are running == Pidora Multi-user Boot ==Run the next commands on the Qemu Pidora environment.below

<pre>ORfdisk /dev/sda# list all partitions, note Copy the start location of partition 2commands below to a file called: start_pidora_multi_userAnd execute the file: bash start_pidora_multi_user

#!/bin/bash# Choose the directory for the compiled qemu QEMU software

# This is the command to boot the Pidora Image using the compiled version of qemuQEMU${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 rw3" -hda ${pidora_dir}/Pidora-2014-R1.img

== Pidora Multi-user = Graphical Boot With SSH ===This is an example of the above graphical boot with the added redirect option to enable ssh.

#!/bin/bash# Choose the directory for the compiled qemu QEMU software

# This is the command to boot the Pidora Image using the compiled version of qemuQEMU${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

This tutorial is basically just using the tutorial found on this site(httpFirst start up Pidora QEMU in Multi-user://xecdesign.com/compiling-qemu/), with some added steps specifically for pidora.<pre>This setup is done completely on fedora 20. If you are using ubuntu/debian it might be easier to use # Choose the site above. This setup avoids directory for the installation of the newly compiled qemu, so that your system stays clean, and keeps your system and any already install qemu instances managed by yum. Some of the commands may need root. # use whatever directory you'd likeQEMU software

mkdir ${pidora_dir}# This is the command to boot the Pidora Image using the compiled version of QEMUcd ${pidora_dir}wget http:/raspidev/xecdesign.comqemu/downloadsarm-softmmu/linuxqemu-qemusystem-arm -kernel ${pidora_dir}/kernel-qemuwget http://pidora.ca/pidora/releases/20/images/Pidora-2014cpu arm1176 -m 256 -M versatilepb -no-R1.zip unzip Pidorareboot -2014serial stdio -R1.zipmkdir ${pidora_dir}append "root=/raspidevdev/cd sda2 panic=1 rootfstype=ext4 rw 3" -hda ${pidora_dir}/raspidev/git clone git://git.qemuPidora-2014-project.org/qemuR1.gitimgcd ${pidora_dir}/raspidev/qemu</pre>

# Before you can continueLog in to root on Pidora, the default root password should be "raspberrypi" if it was not changed. Make sure you will probably need to install a bunch of build deps# I will show all are running the packages I needed to install for next commands on the configure/make to finish successfully# Note: I do NOT make installQEMU Pidora environment.

# I think you might only need to install the devel packages in the below command.yum install gcc-++ zlib zlib-devel SDL SDL-devel pixman pixman-devel libfdt-devel libtool glib2 glib2-devel # Hopefully now, you have all the dependencies on the system ./configure --target-list="arm-softmmu arm-linux-user" --enable-sdl --prefix=/usr make # The newly compiled qemu program should now have compiled successfully # The binary can be found in: ${pidora_dir}/raspidev/qemu/arm-softmmu/qemu-system-arm # As per XEC's instructions I did the following(though I used vi)  ${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/bash" -hda ${pidora_dir}/Pidora-2014-R1.img # Wait for the new qemu instance to boot for the first time, then do the below instructionsnano /etc/ld.so.preload # Put a # in front of the first line so that it looks like this:#/usr/lib/arm-linux-gnueabihf/libcofi_rpi.so Press ctrl-x then y then enter to save and exit.(Optional) Use steps 2 to 4 above to create a file /etc/udev/rules.d/90-qemu.rules with the following content:KERNEL=="sda", SYMLINK+="mmcblk0"KERNEL=="sda?", SYMLINK+="mmcblk0p%n"KERNEL=="sda2", SYMLINK+="root" # Now just close the window or shut it down  # At this point it's probably a good idea to increase the size of the 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. # WARNING: This next command can be very dangerous, use at your own risk! Change the count=# number to the number of GB you would like to add to the size of the image. The command below should increase the size by 4 GB.# You may be fine with 1GB more or maybe, if you are going to try composing your own images, much much more!dd if=/dev/zero bs=1G count=4 ><pre> ${pidora_dir}/Pidora-2014-R1.img # you should now be able to run this command to start the pidora instance and get to first boot. This is the same command above, except without the init=/bin/bash part.${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" -hda ${pidora_dir}/Pidora-2014-R1.img   # PROBLEMS: When I wrote this tutorial I accidentally ran first boot before I resized my image file, which cause a bunch of problems. I shut down the qemu instance after running first boot, and rebooted it in multi-user mode. This is done by adding a 3 to the arguments like in the below command.${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 the qemu machine. This only needs to be done if you need to manually resize the partitions on the image because you forgot to increase the img file size before you started first boot. # Assuming that you ran the dd command above to increase the images size, you now need to manually modify the partitions size on the pidora image. # On the pidora qemu instance that is booted in multi user modefdisk program

># 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)># write/save the changeswreboot<pre>

>(press enter for default)>(press enter for default) >w# Shutdown After the pidora qemu machine # Start the pidora qemu instance again and Pidora restarts, run the following command when it bootsto finish the resize setup:<pre>

# Now the Pidora should now have QEMU environment has been successfully extended to the proper root filesystem max sizeof the image file.