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Table of Contents
Arch on a Pi
Things related to Arch Linux ARM.
Compiling Blender
If it's still not in the repositories, here's a way to compile latest stable Blender for RPi2 Download these two files. And change these two lines from PKGBUILD:
arch=('i686' 'x86_64') … make -j4 # -j5 needs 48 GB of RAM while -j9 needs 64 GB
into
arch=('armv7h') … make -j2
This will get it compiled on the Raspberry Pi 2 itself. It will take a while ( couple hours ).
Installing server
As root
pacman -Syu nginx php-fpm
Start and enable nginx and php-fpm
systemctl start nginx systemctl start php-fpm systemctl enable nginx systemctl enable php-fpm
Check if it is serving the default pages, but it should be.
Change /etc/nginx/nginx.conf
user http; server { listen 80; # watch out for the root location here, must be accessible from the user http root /srv/http; location / { # add index.php to this line index index.html index.htm index.php; } # pass the PHP scripts to FastCGI server listening on php-fpm.sock location ~ \.php$ { fastcgi_pass unix:/run/php-fpm/php-fpm.sock; fastcgi_index index.php; include fastcgi.conf; }
Installing ikiwiki
- Install Git
- Install Make
<code=bash>$: cpan</code>- Use Pacman with this Aur package
Resizing a partition
Copied from http://raspberrypi.stackexchange.com/a/501
sudo fdisk /dev/mmcblk0
- Type
p
to list the partition table
Device Boot Start End Sectors Size Id Type /dev/mmcblk0p1 2048 206847 204800 100M c W95 FAT32 (LBA) /dev/mmcblk0p2 206848 60588031 60381184 28.8G 83 Linux
- Take note of the start number for partition 2 (if that's the one you want to resize)
- Type
d
to delete a partition.
You will then be prompted for the number of the partition you want to delete. In the case above you want to delete partition 2. - Type
n
to create a new partition. - This new partition needs to be a primary partition so type
p
. - Next enter
2
when prompted for a partition number. - You will now be prompted for the first sector for the new partition. Enter the start number from the partition 2 you deleted before.
- Next you will be prompted for the last sector you can just hit enter to accept the default which will utilize the remaining disk space.
- Type
w
to save the changes you have made. (There will be some error showing saying: “Re-reading the partition table failed.: Device or resource busy”, but no worries). - Reboot the Pi:
sudo reboot
- Once the system has reboot and you are back at the commandline enter:
sudo resize2fs /dev/mmcblk0p2
Note: this can take a long time (epending on the card size and speed) be patient and let it finish. - Reboot one more time.
- You can now verify that the system is using the full capacity of the SD Card by entering the following command:
df -h
Why This Works
Actually, when we delete a partition, we don't delete data, we just delete the reference to the partition in the partition table. By creating a new partition exactly from the same spot and of the same type, we keep the data but expanded the size to the full available space of the SD card.
By resizing (which is safe to run on a mounted disk), we tell the file system to use all the space in the new partition.