On Wed, Dec 3, 2014 at 9:58 PM, ivo welch <[email protected]> wrote:
>
> for other newbies, here is a summary of my flashing/updating experiences.
>
> debian is the recommend distribution now.  (not ubuntu, not angstrom, not
> others, even though they probably work, too.)
>
> the posted debian 7.5 standard releases are too finicky.  I always got
> something different and weird.  half the time it would just access both,
> half the time it would stop with all four LEDs black.  sometimes it got
> stuck at its hdmi conversation.  once or twice, I got a red-letter screen
> telling me that it was flashing, but it never got far.
>
> in contrast, when I tried the new console flasher release, debian 7.7 (the
> one that has an md5sum of 1a70...), I had instant success on both rev B and
> rev C boards.  unlike the 7.5 releases, which had two partitions, this one
> has only one.  so, let me recommend 7.7 to anyone like me.
>
> here is a summary of the upgrading process.  the information is already
> spread in many different places, but here is a summary (again) for the
> google cache:
>
>    * on your linux laptop computer: download the img.xz file, check the
> md5sum, use unxz on the image file, and dd bs=1M if=*.img of=/dev/mmcblk0
> (where /dev/mmcblk0 is the flash location on my notebook).  the dd should
> report that you copied about 1.8GB.  on a $10 sdhc premium 32gb card (300x),
> this takes about 90 seconds.  then sync (just to make sure).  then remove
> and reinsert the disk to make sure that a linux partition shows up (it is
> called rootfs and is an ext4).  umount it cleanly.
>    * unpower your BBB.  insert the sdhc.  hold the button near the card
> slot, and power up the BBB.
>    * the USB power supply on a dual-head USB cable is enough.

Not always...rsync hits both media devices hard as it transfers data
between the microSD & eMMC... Lots of power spikes, you really need a
good 5 Volt Dc (2amp) wall plug to reliable flash..

Regards,

-- 
Robert Nelson
http://www.rcn-ee.com/

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