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livebox:beagleboneporting [2014/02/12 21:15] – mark_baldwin | livebox:beagleboneporting [2015/03/13 04:29] (current) – [Beagle bone notes] brett | ||
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Notes on porting the HAH for the beagle bone. These notes really aren't for consumption by anybody but me as reminders for things I did whilst playing around on the Beagle Bone. | Notes on porting the HAH for the beagle bone. These notes really aren't for consumption by anybody but me as reminders for things I did whilst playing around on the Beagle Bone. | ||
+ | The Angstrom distribution was just too warty for my liking and I moved everything to UBUNTU which also allows the Raspberry PI and other embedded boards to also join the fun. | ||
+ | |||
+ | < | ||
===== Validating the cross compiler works ===== | ===== Validating the cross compiler works ===== | ||
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</ | </ | ||
- | in the log called with dmesg. | + | in the log called with dmesg. It's not really a problem unless you are trying to debug but still annoying. |
- | To stop these edit the uEnv.txt file on the FAT partition | + | To stop these edit the uEnv.txt file on the FAT partition (not uEnv.txt in /boot) |
+ | |||
+ | Mount the partition | ||
< | < | ||
mount / | mount / | ||
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shutdown -r now | shutdown -r now | ||
</ | </ | ||
+ | |||
+ | ===== backing up the BeagleBone Black eMMC ===== | ||
+ | |||
+ | After you have got the BBB up and running how you like it, backing up is always a good idea. | ||
+ | |||
+ | You can of course back up the ini settings, plugboard scripts etc using the web GUI but I like to keep a backup of the entire eMMC. | ||
+ | |||
+ | There are a few methods to be found on the 'net that require the use of a script on a microSD card. This is ideally the best way but requires | ||
+ | stopping the BBB (and if SWMBO is expecting things to happen, that's never good) | ||
+ | |||
+ | So here is an option to use dd over ssh to backup to another PC (in my case a mac) | ||
+ | |||
+ | on the BBB | ||
+ | < | ||
+ | sudo dd if=/ | ||
+ | </ | ||
+ | |||
+ | n.b. the block size is set on the BBB using bs=1M but on the mac HAS to be bs=1m (lowercase) (I'm not sure if this is the case :) on a pc) | ||
+ | |||
+ | To restore. This needs to be done after booting from an SD card to free up the eMMC | ||
+ | The eMMC is then mmcblk1 not mmcblk0 | ||
+ | < | ||
+ | ssh themac@192.168.0.X "dd of=/ | ||
+ | </ | ||
+ | |||
+ | Then power down, remove the SD card and reboot. |