[fedora-arm] Fedora 21 on BeagleBoard-xM Rev C

[Scott M. Jones]

I'm booting F21 LXDE successfully on Beagleboard xM rev B.  Different
DTB but the rest should be the same.  Comparing mine to yours you may be
loading the kernel at the wrong address.  I'm not really using the boot.scr.

More info here including my uEnv.txt:
https://lists.fedoraproject.org/pipermail/arm/2015-January/008901.html

On 2/28/15 10:22 PM, Sergio Durigan Junior wrote:
> Hi there,
> 
> In the past couple of days, I have been trying to make Fedora 21 boot in
> a BeagleBoard-xM Rev C.  Unfortunately, this doesn't work out of the box
> as I expected, and I had to do many tweaks to the documented procedure:
> 
>   <https://fedoraproject.org/wiki/Architectures/ARM/F21/Installation>
> 
> FWIW, I am using the Minimal Fedora image for this.
> 
> Well, the first thing I tried was following the exact instructions for a
> BeagleBone:
> 
>   <https://fedoraproject.org/wiki/Architectures/ARM/F21/Installation#For_the_BeagleBone_.28_Black_.26_White_.29>
> 
> But, as I said, this did not work.  I found that BeagleBoard-xM expects
> the first partition to be a FAT one, and the image provided by Fedora
> has an ext* partition.  OK, so I manually created an SDCard with a FAT
> partition as the first one (where the u-boot files + the Linux kernel
> stay), and then the rest of the partitions are the ones that you find in
> the original image.  It worked, in the sense that I could turn on the
> board and see something in the serial.  However, more problems ahead...
> 
> The second problem was about "catX" not being defined.  It is actually
> defined in boot.cmd, but due to some bugs in the u-boot version that is
> being used, it is not recongnized.  I found this message about the
> subject:
> 
>   <https://lists.gnu.org/archive/html/qemu-devel/2014-10/msg03127.html>
> 
> [It feels strange that nobody noticed/experienced this problem before; I
> hope I'm not doing anything wrong...]
> 
> Anyway, after struggling a lot with this, I decided to give up the
> original boot.cmd and write very simple boot.cmd + uEnv.txt files, just
> for the board that I have.  The contents are:
> 
> boot.cmd: <http://paste.fedoraproject.org/191836/16762614/>
> 
> uEnv.txt: <http://paste.fedoraproject.org/191837/14251676/>
> 
> Those were obviously made using the definitions found in the original
> boot.cmd file.  With them, the board can finally (and apparently) load
> the Linux kernel + the initrd + the dtb files from the SDCard, but I
> still can't make it to boot; it freezes after the "Starting kernel ..."
> message, all the lights turn on, and nothing else happens..  Here is
> what I see now:
> 
>   <http://fpaste.org/191831/25164279/>
> 
> It seems to me that I have made some mistake somewhere (offsets?  files
> to load?  u-boot commands?), but I can't find it.  I was at least
> expecting to see the "decompressing kernel" message, but nothing...  And
> adding earlyprintk in the bootargs doesn't tell anything either.
> 
> So, I'm kind of running out of ideas on how to solve this, and I want to
> get everything working until Monday.  Does anyone know what can be
> wrong, or point me to some documentation that I can use to boot Fedora
> 21 on this BeagleBoard-xM?
> 
> Thanks a lot,
>