diff --git a/BBB-PC-Internet.txt b/BBB-PC-Internet.txt new file mode 100644 index 0000000..fa4844e --- /dev/null +++ b/BBB-PC-Internet.txt @@ -0,0 +1,36 @@ + +First on BBB check 'route' and set default gateway address to 192.168.147.1. +See postboot.sh script. + +From BBB; +ping -c2 www.cnn.com if it continues to fail continue otherwise your done. + +Check P.C. Windows Host side +GoTo Control Panel, Network and Sharing Center +Click on Change Adapter Settings +Hightlight (ONE Click) BBB USB Adapter (Your Adapter may have a different name) +Click on Disable BBB USB Adapter +Pause +Click on Enable BBB USB Adapter +Pause +Respond OK to warning about change to 192.168.137.1 (Your display may differ) +Double click on BBB USB Adapter +Click Properities +Click IPv4 +Click Properities +==> Make sure IP Address is set to 192.168.147.1 (It's probably set to 192.168.137.1) +And Preferred Name Server is set to 8.8.8.8 +If the address won't stick Click Advanced +See if incorrect address is shown +If it is Click on it and Click Remove then Click Save +Click Save +Click Save +Double Click on WiFi Adapter +Click Properities +Click Sharing (On the top) +Make sure BBB USB is Detected, If not select. +Click Save +Click Save +Close all open Network windows + +From BBB try ping -c2 www.cnn.com again. It should work. diff --git a/Duplicating-Working-SD-Image.txt b/Duplicating-Working-SD-Image.txt new file mode 100644 index 0000000..8fdf237 --- /dev/null +++ b/Duplicating-Working-SD-Image.txt @@ -0,0 +1,52 @@ +BBB New Duplicating Image + +# 3-25-2020 Ken. Thank you zmatt. + +# For example, if the source is /dev/mmcblk0 and destination is /dev/sda +# Source being SD-Card in BBB and destination being hung off USB port + +# ===> Boot off eMMc <=== + +# Shrink the source: + +# First become superuser + +sudo -s + +e2fsck -f /dev/mmcblk0p1 + +resize2fs -M /dev/mmcblk0p1 + +# ^^^ It will tell you how big the filesystem now is in 4K blocks. +# Divide by 1024 and round up to get the size of the filesystem in 4M blocks. + +echo 'start=8192,bootable' | sfdisk /dev/sda + +# Copy the filesystem to the destination. +# Fill in the correct number of 4M blocks for COUNT from above + +dd if=/dev/mmcblk0p1 of=/dev/sda1 bs=4M count=.... conv=fdatasync + +# Expand filesystem on destination + +resize2fs /dev/sda1 + +# Copy bootloader + +dd if=/dev/mmcblk0 of=/dev/sda skip=1 seek=1 count=8191 conv=fdatasync + +# If you want to continue using the old filesystem, Expand it again + +resize2fs /dev/mmcblk0p1 + +# ===> Remove externally mounted SD-Card on USB adapter + +# Give the new filesystem a new unique identifier if needed + +yes | tune2fs -U random /dev/sda1 + +# If you want to reboot off internal SD-Card use command + +reboot + +# All done diff --git a/Relay-Cape-Setup.txt b/Relay-Cape-Setup.txt new file mode 100644 index 0000000..cd72676 --- /dev/null +++ b/Relay-Cape-Setup.txt @@ -0,0 +1,21 @@ + + +Relay Cape notes + +Initialize (relays to out) after an install + +echo 20 > /sys/class/gpio/export +echo out > /sys/class/gpio/gpio20/direction +echo out > /sys/class/gpio/gpio7/direction +echo out > /sys/class/gpio/gpio112/direction +echo out > /sys/class/gpio/gpio115/direction + + +BBGW Note + +Well I set the default directory to +/sys/class/gpio +and issued the command +echo 112 > export +and like magic the gpio112 appeared. It works now. Don't know why gpio112 was not automatically created however. + diff --git a/Ubuntu-to-BBB-Serial-Console.txt b/Ubuntu-to-BBB-Serial-Console.txt new file mode 100644 index 0000000..79145bc --- /dev/null +++ b/Ubuntu-to-BBB-Serial-Console.txt @@ -0,0 +1,10 @@ + +Ubuntu to Serial Console on BBB + +In the VB window where your guest is running, +click on Devices -> USB -> Prolific Technology Inc (or whatever) USB device you want to share to your guest. +Once you do that, Ubuntu will "see" the USB connection and automatically create the necessary /dev/ttyUSB0 device. + +Then you can use any of the normal tools to open up /dev/ttyUSB0. Screen, minicom, gtkterm, etc. + + diff --git a/disable-HDMI.txt b/disable-HDMI.txt new file mode 100644 index 0000000..0ea3b8c --- /dev/null +++ b/disable-HDMI.txt @@ -0,0 +1,14 @@ + +3-17-2020 + +To disable HDMI video & HDMI audio at boot add + +sudo nano /boot/uEnv.txt + +enable_uboot_overlays=1 <=== ?? +disable_uboot_overlay_video=1 +disable_uboot_overlay_audio=1 + + +Control/O Enter Control/X +