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<div class="moz-cite-prefix">On 01/09/2017 06:07 AM, Jim Perrin
wrote:
</div>
<blockquote
cite="mid:616f01ad-df99-ee4e-462f-a5572bdc26fe@centos.org"
type="cite">
<pre wrap="">On 01/07/2017 01:51 PM, Paul R. Ganci wrote:
</pre>
<blockquote type="cite">
<pre wrap="">I received a Raspberry PI 3 for Christmas with which I am playing. I
would like to install the aarch64 CentOS 1611. However I am finding very
limited information on the web as how to go about doing that. Can
somebody get me started on what I need to do in order to install CentOS
1611? Some initial questions.
1.) Can the aarch64 distribution even be installed on a Raspberry PI 3?
</pre>
</blockquote>
<pre wrap="">Not, but we're working on it. There's a patchset that needs to be
backported from a more recent kernel to the 4.5 kernel used in the
aarch64 release. Additionally, there are a couple bugs in the kernel to
be fixed regarding memory handling. The RPI3 is limited enough in ram
that these bugs would have serious implications when running the 64bit
version. In short, I hope to have something we can use in the coming
weeks, but it's not currently in a functional state.
One final note: There's a bug in the upstreamed graphics driver that has
significant problems. Because of that, the patchset we're working on
disables it. The distro would be limited to framebuffer console on the
rpi3 only in 64bit mode.
</pre>
</blockquote>
<br>
Thank you Jim. I was wondering about some of what I was seeing both
on the running armv7hl version and trying to install the aarch64
version. I guess I will have to be patient.. I can probably find the
time on a weekend to try something out if it helps.<br>
<br>
I do have a question about how to use the distribution. I noticed
that there are two directories containing things essential to the
distro. Here is part of the directory tree which contains the
images.<br>
<br>
<tt>mirror.centos.org/altarch/7/isos/aarch64/CentOS-7-aarch64-Everything.iso</tt><br>
<tt> </tt><tt>/</tt><tt>CentOS-7-aarch64-NetInstall.iso</tt><br>
<tt> /</tt><tt>CentOS-7-aarch64-rolling.img.xz</tt><br>
<tt> /</tt><tt>CentOS-7-aarch64-rootfs-7.3.1611.tar.xz</tt><br>
<tt> /CentOS-7-aarch64.img.xz</tt><br>
<tt> /ReadMe.txt</tt><br>
<br>
<tt>mirror.centos.org/altarch/7/os/aarch64/images/boot.iso</tt><br>
<tt> /efiboot.img</tt><br>
<tt> /pxeboot/</tt><br>
<br>
<tt>In the ReadMe.txt file I found this documentation:</tt>
<blockquote>
<pre>## Burning the image to disk
You may simply dd this image to disk, however for the sake of ensuring
that it is written correctly, we recommend the following command. Please
replace the image-name and target device with the appropriate values for
your environment.
```
dd if=<image-name.img> of=/dev/sdX bs=2M conv=fsync && sync;
```</pre>
</blockquote>
Which image should be burnt? I chose the CentOS-7-aarch64.img.xz and
did the following from a CentOS 6.8 X86_64 system:<br>
<br>
<tt>> unxz CentOS-7-aarch64.img.xz</tt><tt><br>
</tt><tt>> dd if=CentOS-7-aarch64.img of=/dev/sdf bs=2M
conv=fsync && sync;</tt><tt><br>
</tt><tt>></tt><tt> sgdisk -e -d4 -n4:0:0 /dev/sdf</tt><br>
<br>
However, when I stuck the sdcard into the RPI3 it did not do a
thing. I would have been giddy with joy even if it crashed on
something while booting. However, absolutely nothing happened as if
there was no boot record to be found.<br>
<br>
So my question is how do I make a bootable sdcard in this case? Did
I chose the correct "img" file or do I have to work some magic
somehow. For example do I have to use the efiboot.img to make an EFI
boot directory? I would love to see the RPI3 crash trying to run the
OS. :)<br>
<br>
If there are some simple instructions so that I might know what I am
doing I would be grateful. Again Thanks.<br>
<br>
<div class="moz-signature">-- <br>
Paul (<a class="moz-txt-link-abbreviated" href="mailto:ganci@nurdog.com">ganci@nurdog.com</a>)<br>
Cell: (303)257-5208<br>
</div>
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