backup all of linux using rsync

mount a large external usb drive.  do a df to get the mount point of the usb drive.

cd to the mount point and create a directory.  as an example, mkdir rsync_backup.

cd $HOME

sudo rsync -aAXv / –exclude={“/dev/*”,”/proc/*”,”/sys/*”,”/tmp/*”,”/run/*”,”/mnt/*”,”/media/*”,”/lost+found”} /media/rblout/758b0352-9c66-451f-bdc1-feeac2a6a896/rsync_backup

This will take a long time.  You may also wish to exclude additional directories depending on what you are going to do.  For example if you are doing an upgrade from Ubuntu 19 to U untu 20 you can exclude a lot more.  You would just need to preserve your apache server, wordpress and the like.

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