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Configurations

The Plop Linux for ARM has a few additional configurations for ARM computers.

/etc/rc.local

The file /etc/rc.local has a few additional commands to the standard Plop Linux rc.local file. It has sections for various devices (Raspberry Pi, Banana Pi, Cubietruck, Odroid XU4). You set the device in the file /etc/device.

SWAP Memory

You can use a partition or a file for swap memory. I prefer a swap file.

The old rule is, the size of the swap memory should be the double of your RAM. Maybe you have to choose a smaller size when you doesn't have enough free space on your drive.

To create a swap file with 1 GB run:

dd if=/dev/zero of=/var/swap bs=1M count=1024
chmod 600 /var/swap
mkswap /var/swap
swapon /var/swap

Remove the # in /etc/fstab at the line with swap to activate the swap at boot time.

WLAN Wi-Fi

You find an example with the Techion WLS 150 WLAN USB Stick here.

Raspberry Pi: Mount boot partition to /boot

The boot partition /dev/mmcblk0p1 is mounted to /boot. You can configure this in the /etc/fstab file.

Raspberry Pi, Banana Pi: Date and time

The Rasperry Pi and Banana Pi cannot keep the time without power. The time has to be set during booting. The correct time is set by calling a NTP server. In the file /etc/rc.local you find the line ntpdate ntp0.fau.de & to set the correct time. It's required to have an internet connection to set the time automatically.

Remove the file /etc/rc.d/rcsysinit.d/S60setclock to avoid the boot error warning about time.

Remove the & after ntpdate ntp0.fau.de to wait until the time has been set to avoid user logins before the time has been set.

Raspberry Pi: Audio

The sound module snd-bcm2835 is loaded by /etc/rc.local to enable the audio device.

© 2024 by Elmar Hanlhofer