CODEWITHSUNDEEP
linuxraspberry-pibackup
Douglas Su
Douglas Su

Reputation: 3364

How to backup an entire Raspberry Pi TF card's filesystem into an image via Linux or Mac

Raspberry pi easily suffer the sudden cutoff of power supply, which may lead to a system corruption or data losing. So, it is important to find some methods for the purpose of system backup.

I wish there exist some tools or scripts which can packet the entire filesystem on TF card into an image. Then, when the system crashes and can't be repaired. I could restore it from these images. I feel that the images just act as snapshoots.

Upvotes: 1

Views: 456

Answers (1)

Jason Tseng
Jason Tseng

Reputation: 56

You can use dd command to save sdcard to a file when the sdcard is not in use.

sample usage is

dd if=/dev/sdX of=/your/destination/image/file bs=8M

the bs parameter means block size, since the default block size just 512 bytes, the size is so small that reading/writing speed are slow.

and the image file can be compressed by gzip/bzip2/xz/... etc, i suggest use man command to get the details of command.

Upvotes: 3

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