Linux boot issue: black, xenial

[drbc...@gmail.com]

I got my Snickerdoodle Black about a week ago. Playing around with it and I can get it to boot, after a fashion.

(1) Removed modemmanager from the 17.04-64 development box.

(2) Power on with USB; connect with minicom.

(3) Linux hangs in emergency mode

[  OK  ] Found device /sys/subsystem/net/devices/wlan1.                                       [  OK  ] Started Raise network interfaces.                                                   [  OK  ] Reached target Network.                                                             [  OK  ] Reached target Network is Online.                                                                                              
Welcome to emergency mode! After logging in, type "journalctl -xbGive root password for maintenance                                      
(or press Control-D to continue):  

So: snickerdoodle as password gets me in as root; su can give me snickerdoodle user and I can run programs. I ran the journalctl command (that is visible in the prompt) and got a February log file displayed.

Image used: snickerdoodle_black_xenial_kinetic.img, snickerdoodle_black_BOOT_20160627
Connections: microUSB for power and serial; 16GB U3 SD Card partitioned w/ 128M vfat32/rest ext4

[Cousins]

Any way you might be able to summarize the problem you're experiencing? Is it just that you aren't able to boot using the 'standard' snickerdoodle Ubuntu SD image?

-Ryan

[drbc...@gmail.com]

Sorry about the delay:

Summary: Snickerdoodle Black with snickerdoodle_black_xenial_kinetic.img (and snickerdoodle_black_BOOT_20160627) on a 16GB SD card goes into emergency mode. When I feed it the root password, none of the SD-based boot commands start Linux. The journal information is as given above.

I _am_ teachable: I understand the missing CRC message from the Flash RAM.

I will try building the boot and rootfs from source today (I have done that before and _think_ I had similar problems...time to repeat the experiment).

Thanks for your time

[drbc...@gmail.com]

(1) Successfully booted  snickerdoodle_black_xenial_kinetic.img after reinstalling the boot and root partitions on a clean SD card.

(2) Would still appreciate a moderately simple recipe for building linux from sources for the SD/SDBlack. The documentation is very out of date and incomplete (the linux dev manual ends with uImage being built; nothing on where the rest of the boot partition files come from and no indication how to get a clean rootfs image).

Thanks for reading and the toy,
-bcl