What is the difference between rpi-update (firmware) and apt-get update and apt-get upgrade?
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rpi-update updates the firmware for the Raspberry Pi. It does not change any packages.
apt-get update updates the package listings for the Debian operating system, but does not upgrade the packages themselves.
apt-get upgrade upgrades any packages that have new versions. You usually run this after you run
Note: for these commands to do anything, you have to prefix them with
sudo to get administrative privileges, else they won't work.
firmware, it refers to the files and drivers that interact with the Raspberry Pi hardware, such as the Broadcom chip. These are not kept in the normal
aptrepositories, and so have to be upgraded separately.