[Freedombox-discuss] Power on failure
rgriff35 at gmail.com
Thu Apr 26 04:27:51 BST 2018
I guess it needed a little longer to boot up. I can now login.
On Wed, Apr 25, 2018 at 11:06 PM Randy Griffiths <rgriff35 at gmail.com> wrote:
> Thanks for the tips. I tried several things tonight with no luck at first,
> then mysteriously made some progress.dy I had tried plugging in a monitor
> via the hdmi port but didn't see anything. I noticed when I ejected the SD
> card the ethernet port lights came on. Then I took the lime2 out of the
> metal case and tried plugging in the power cord without the ethernet cable
> but with the monitor and then I could see the freedombox boot up on the
> screen and get to the login. I plugged the ethernet cord in and was able to
> see the freedombox from the router. Hallelujah!
> But when I try to access the freedombox from a browser through
> freedombox.local I get the following error:
> The server is temporarily unable to service your request due to
> maintenance downtime or capacity problems. Please try again later.
> Any ideas on what the problem is?
> On Tue, Apr 24, 2018 at 3:51 AM Jonas Smedegaard <dr at jones.dk> wrote:
>> Excerpts from Sunil Mohan Adapa's message of april 24, 2018 8:34 am:
>> > I have had cases where I connect the power to my Lime2 and it does not
>> > power on. When I disconnect and reconnect the power, it usually works.
>> > I guess this might be due to a poor power supply or too many devices
>> > connected via USB. I could be wrong.
>> I have experienced same as above.
>> > Also, I debug these cases by connecting a USB-serial connector. If
>> > there are no boot messages related to u-boot on the serial console,
>> > then it has to do with hardware but if the boot gets hung somewhere,
>> > we can identify and fix the issue.
>> > I believe latest version of the Linux kernel also have HDMI out for
>> > A20 SOCs. It is worth connecting Lime2's HDMI port to a monitor and
>> > see what is happening.
>> I believe updating kernel does *not* change what gets output to HDMI:
>> Stable Debian linux packages support video putput to HDMI fine¹ and has
>> not changed since then, but default software wiring² for LIME boards
>> specifically has output to serial by default.
>> For systems using flash-kernel, I believe the least involving tweak for
>> redirecting U-boot output to HDMI is to add the following line close to
>> the top of the file /etc/flash-kernel/bootscript/bootscr.sunxi:
>> setenv console tty1
>> e.g. like this:
>> sed -i -r -e '2asetenv console tty1\n'
>> ...and then regenerate boot files, e.g. (indirectly) like this:
>> dpkg-reconfigure linux-image-...
>> To tweak linux cmdline options, edit /etc/default/flash-kernel.
>> Speaking of cmdline options, you might consider adding these to limit
>> video buffers (freeing memory for general use):
>> sunxi_g2d_mem_reserve=0 sunxi_fb_mem_reserve=16"
>> More info at https://linux-sunxi.org/Kernel_arguments
>> - Jonas
>> ¹ Recent kernels improves on other HDMI signalling than video (e.g.
>> audio) which is unrelated to the issue of getting console messages.
>> ² setup of Device Tree (dtb) files built from U-boot and Linux.
>> * Jonas Smedegaard - idealist & Internet-arkitekt
>> * Tlf.: +45 40843136 Website: http://dr.jones.dk/
>> [x] quote me freely [ ] ask before reusing [ ] keep private
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the Freedombox-discuss