Linux Backup Raspberry Pi

[Shindig]

Hello,

So I can use this command
dd if=/dev/sdx of=/path/to/image bs=1M

to take a full backup of the SD card that has the OS installed for my raspberry pi.
What I need help with is:

How do I find out what /dev/sdx (location of SD card) actually is?
Where would be the best place to backup to - /path/to/image - the SD card is 8gb so I can just write it back to itself in a way.
I would like to CRON it, I assume once I get the line correct and confirm its working, I can just CRONTAB that line?

Linux very new to me, would appreciate the help.
Cheers

 

[jfish]

Hello,

So I can use this command
dd if=/dev/sdx of=/path/to/image bs=1M

to take a full backup of the SD card that has the OS installed for my raspberry pi.
What I need help with is:

How do I find out what /dev/sdx (location of SD card) actually is?
Where would be the best place to backup to - /path/to/image - the SD card is 8gb so I can just write it back to itself in a way.
I would like to CRON it, I assume once I get the line correct and confirm its working, I can just CRONTAB that line?

Linux very new to me, would appreciate the help.
Cheers

use dmesg or sudo fdisk -l to get info on your attached storage. sd card will probably be /dev/sdb
also you can look in /var/log/messages to find out the sdcard dev name

also be careful with dd command when selecting the output device you want to backup to

 

[Him Her]

Would it not be better to back it up to another card?

 

[Shindig]

If I could CRON it to a windows share that would be ace.
I assume I have to mount a windows share first?

 

[Him Her]

Yes, then you can add the Windows share to fstab and off you go

You'll have to install the Samba client obs...

 

[Shindig]

I gave up when getting to the windows share side of it... jee its tought stuff!
Anyway I grabbed this util and popped the SD card hosting the OS in my laptop. Took an image of it... and did a restore.
I appreciate you get downtime but it works as a one off once a month or so.

HDDGURU: HDD Raw Copy Tool

 

[cooler]

This is what I did to back-up my card after setting things up, I used linux.

First you can even create swap if you want on your card before backing -up, I used gprated to create linux-swap space on the free space on the card, then.

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[edogg]

I know this is an old post but people (like me ) are still getting these RPi's you can use win32diskimager to read the sdcard onto a windows computer(backup) and then write it to another card or even the same card it is the recommended way to write the image to a sdcard by the RPi forums