For servers (ie, no need for a display), uncomment the following in
/boot/boot.ini to free up approx 300M of memory at the cost of disabling the
setenv nographics "1"
ODROIDs have dual LEDs: a red power LED which is always on if power is supplied, and a blue LED which can be configured.
By default, the blue LED is a heartbeat LED, which flashes when the kernel is
running. This can be configured in
To list available triggers:
# cat /sys/class/leds/blue:heartbeat/trigger
Replace TRIGGER with one of the available triggers. This setting will apply instantly, but be lost upon reboot.
# echo TRIGGER > /sys/class/leds/blue:heartbeat/trigger
To create a persistent configuration, edit or create
w /sys/class/leds/blue:heartbeat/trigger - - - - TRIGGER
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