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Deprecate swap file

This commit is contained in:
Bob Mottram 2014-04-16 21:05:28 +01:00
parent 05720abc8c
commit 329ed57752
1 changed files with 2 additions and 30 deletions
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32
beaglebone.txt
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@ -226,7 +226,7 @@ iface eth0 inet static
# gateway 192.168.7.1
#+END_SRC
CTRL-O followed by ENTER to save, then CTRL-X to exit.
CTRL-o followed by ENTER to save, then CTRL-x to exit.
In the above example "address 192.168.1.60" is a static IP address for the BBB, which will allow incoming network traffic to be directed from the router in a reliable manner. It should be outside of the DHCP range set up on the router.
@ -249,7 +249,7 @@ nameserver 213.73.91.35
nameserver 85.214.20.141
#+END_SRC
CTRL-O followed by ENTER to save, then CTRL-X to exit.
CTRL-o followed by ENTER to save, then CTRL-x to exit.
Now disconnect the BBB from your computer and plug it into the router. You'll need an ethernet patch cable and you may also need a 5V/1A power supply for the BBB.
@ -294,34 +294,6 @@ Some basic Emacs keys which will be useful to new users are:
| Save | CTRL-x CTRL-s |
| Exit | CTRL-x CTRL-c |
** Create a swap file
Without a swap file the system may occasionally run out of memory and crash, since the Beaglebone only has 512MB of RAM. The following commands will create a 1GB swap file:
#+BEGIN_SRC: bash
mkdir -p /var/cache/swap/
dd if=/dev/zero of=/var/cache/swap/swapfile bs=1M count=1024
chmod 600 /var/cache/swap/swapfile
mkswap /var/cache/swap/swapfile
swapon /var/cache/swap/swapfile
#+END_SRC
To tell the OS to load this swapfile on each start up.
#+BEGIN_SRC: bash
emacs /etc/fstab
#+END_SRC
Append the following line:
#+BEGIN_SRC: bash
/var/cache/swap/swapfile none swap sw 0 0
#+END_SRC
Then save and exit.
To verify that the swapfile is accessilble type /top/ and look for the line which begins with "KiB Swap". Probably there will be zero bytes used, but this might be non-zero when the system is under some load (for example getting a lot of web views or being crawled by a search engine). CTRL-C exits from the /top/ command.
** Enable backports
To enable some newer packages add backports to the repositories.