This page (revision-24) was last changed on 2021-04-21 06:16 by Murray Altheim

This page was created on 2021-03-27 21:00 by Murray Altheim

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How To Backup An Sd Card
HowToBackupAnSdCard

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At line 5 changed one line
The Raspberry Pi uses an SD card to contain its [operating system]. Once you've gone to the trouble of getting your Pi to the point where it's perfect, wouldn't it be great to do a backup copy? And be able to restore from that backup? Because there's always the chance that something will go wrong, it's generally good to make backups anyway.
[{TableOfContents}]
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Doing a backup of an SD card isn't just a matter of copying a bunch of file, because the SD card on a Pi is split up into multiple __partitions__, and the copy must duplicate not just the files and file structure but the type and layout of those partitions. This is called "cloning".
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If you're using a Linux or Mac OS computer this page applies. If you're using Windows you can do this on the Windows Subsystem for Linux (WSL), an Ubuntu-in-situ application. If you want to use Windows, there are many web pages describing how to use Windows applications to copy cards. (We don't use Windows around here.)
The Raspberry Pi uses an SD card to contain its [operating system]. Once you've gone to the trouble of getting your Pi to the point where it's ''perfect'', wouldn't it be great to do a backup copy? And be able to restore from that backup? Because there's always the chance that something will go wrong, it's generally good to make backups anyway.
At line 10 added one line
Doing a backup of an SD card isn't just a matter of copying a bunch of files, because the SD card on a Pi is split up into multiple __partitions__, and the copy must duplicate not just the file structure and files, ownership and permissions, but the type and layout of the partitions. Copying an entire drive is called "cloning".
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%%information
If you're using a Linux or Mac OS computer this page applies. If you're using Windows you can do this using the ''Windows Subsystem for Linux'' (WSL), an Ubuntu-as-an-application that can be installed — with some effort — on Windows 10. If you want to use Windows, there are many web pages describing how to use Windows applications to copy cards. We don't use Windows around here.
%%
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! Determining the Mount Point of Your SD Card
! Finding Your SD Card
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!! How To Restore an SD Card From an Image File
!!! How To Restore an SD Card From a Backup
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TBD.
! Find Your SD Card
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Using the instructions above with fdisk, locate your SD card.
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! Format Your New SD Card
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From a Linux desktop you can use the __Disks__ utility to reformat the entire drive (not simply its partitions), first unmounting and then deleting all partitions, then using "Format Volume" with an Ext4 format. Alternately, you can use gparted (the Gnome Partition Editor) (installed via: {{sudo apt install gparted}}). It's a bit beyond the scope here to describe how to reformat the drive using these GUI tools but we'll cover the command line approach because ''it's actually easier''.
This page (revision-24) was last changed on 2021-04-21 06:16 by Murray AltheimTop