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→Pidora QEMU
= Pidora QEMU =
{{Admon/important| Security Warning! |This page is a work in progress. The page is not formatted correctly and Please read the information instructions carefully, there may be errors or may not lead to breaking your computer. Donwrong information, be careful if you don't use this page till it is complete, or you really know what you are doing.}}
This page is here to assist people who would like to run Pidora 2014 in a QEMU environment. This tutorial has been adapted from this website: http://xecdesign.com/compiling-qemu/
== Pidora QEMU Compose ==
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). The programs we use(livemedia-creator) for composing new images require much more ramRAM, which makes the Pidora Qemu QEMU Environment a bad place to try and create images. (See compose on Fedora Arm QemuQEMU)
= Pidora QEMU Setup =
The two stages to setting up Pidora Qemu QEMU involve, getting all the files(kernel, image) and installing the Qemu QEMU environment.
== Getting The Files ==
<pre>
# Choose the directory to put both the image and the compiled qemu QEMU software
pidora_dir=/data/pidora-qemu
cd ${pidora_dir}
# Download the qemu QEMU kernel
wget http://xecdesign.com/downloads/linux-qemu/kernel-qemu
# Download the pidora Pidora image
wget http://pidora.ca/pidora/releases/20/images/Pidora-2014-R1.zip
== 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 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 ===
This method should probably be good enough to run Pidora in Qemu. I have only tested on Fedora 20, and it works.
=== Manual Compile ===
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).
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>
<pre>
# Choose the directory for the compiled qemu QEMU software
pidora_dir=/data/pidora-qemu
# Make a new directory for qemu QEMU and enter it
mkdir ${pidora_dir}/raspidev/
cd ${pidora_dir/raspidev/
</pre>
= 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.
== 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 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.
<pre>
# Choose the directory for the compiled qemu QEMU software
pidora_dir=/data/pidora-qemu
== The First Boot ==
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.
<pre>
# Choose the directory for the compiled qemu QEMU software
pidora_dir=/data/pidora-qemu
# 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" -hda ${pidora_dir}/Pidora-2014-R1.img
</pre>
== Pidora Graphical Boot ==
Run the commands below.
OR
Copy the commands below to a file called: start_pidora_graphical
And execute the file: bash start_pidora_graphical
<pre>
#!/bin/bash# Choose the directory for the compiled qemu QEMU software
pidora_dir=/data/pidora-qemu
# 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" -hda ${pidora_dir}/Pidora-2014-R1.img
</pre>
== Pidora Multi-user Boot ==
Run the commands below
OR
Copy the commands below to a file called: start_pidora_multi_user
And execute the file: bash start_pidora_multi_user
<pre>
#!/bin/bash# Choose the directory for the compiled qemu QEMU software
pidora_dir=/data/pidora-qemu
# 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
</pre>
== Boot with SSH Enabled ==
There is a option you can specify in the boot command that 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 this line:
<pre>
-redir tcp:2222::22
</pre>
This will redirect all traffic from localhost on your main machine through the port 2222 to the raspberry pi qemu machine port 22. Make sure ssh is running on the qemu machine:
<pre>
systemctl enable sshd # To make sshd start at boot time
systemctl start sshd # To start sshd
</pre>
So you can connect with ssh by running the following command:
<pre>
ssh -p 2222 root@localhost # Connect 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
# This is the command to boot the Pidora Image using the compiled version of 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
</pre>
=== Graphical Boot With SSH ===
This is an example of the above graphical 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
# This is the command to boot the Pidora Image using the compiled version of 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" -hda ${pidora_dir}/Pidora-2014-R1.img
</pre>
= Issues =
== 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.}}
If for some reason the Pidora Partitions did not resize after running first boot and you did run the dd command above to increase the size of the image, then we will manually resize the file system here.
First start up Pidora Qemu QEMU in Multi-user:
<pre>
# Choose the directory for the compiled qemu QEMU software
pidora_dir=/data/pidora-qemu
# 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
</pre>
Log in to root on pidoraPidora, the default root password should be "raspberrypi" if it was not changed. Make sure you are running the next commands on the Qemu QEMU Pidora environment.
<pre>
</pre>
Now the Pidora Qemu QEMU environment has been successfully extended to the max size of the image file.
