The method of updating linux system

Simple operation and operation principle of linux system update.

1. Upgrade principle:

1. System upgrade is actually a process of deleting and reinstalling software packages. In the process of updating, apt-get will automatically delete the old software packages, so that the index file of the software packages must be updated when the system is upgraded.

2. In the process of upgrading the system, the original system kernel software will be retained in the system, so that when there is an exception in booting the system using the new system kernel, we can continue to boot the system using the old kernel.

2. Upgrade operation:

1. Update the package index file

Sudo apt-get install update

2. Update the system

Sudo apt-get update

The above are the details of how to update the linux system, please pay attention to other related articles!