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Linux Kernel

Sun 26 October 2014

Determine Kernel version and upgrade

You can determine the current linux kernel version by:

[kevin@raspberrypi tmp]$ more /proc/version
Linux version 3.2.27+ (dc4@dc4-arm-01) (gcc version 4.7.2 20120731 (prerelease)
(crosstool-NG linaro-1.13.1+bzr2458 - Linaro GCC 2012.08) ) #250 PREEMPT Thu Oct
 18 19:03:02 BST 2012


[kevin@raspberrypi tmp]$ uname -a
Linux raspberrypi 3.2.27+ #250 PREEMPT Thu Oct 18 19:03:02 BST 2012 armv6l GNU/Linux

In both cases, this is kernel version 3.2.27. Note that the l in armv6l refers to little endian.

Get and install rpi-update:

sudo apt-get install rpi-update

Now you can use rpi-update to get the current kernel:

sudo apt-get upgrade rpi-update
sudo rpi-update

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