How to backup CM4 module on interceptor ?

Hi guys, I am using both interceptor baords as file servers in my home environment.

all works fine, i just have not been able to backup the system on the cm4 module. I am using your software on a CM4 with eMMc storage, works fine. But if i stick the CM4 module in a CM4-IO-Base-A Module, I can not get it to boot into the state where it shows as a storage drive on Windows 10. I ususally make a copy of it using Win32DiskImager or such. Excuse my English, I am not a native speaker.

Kindest regards

Holger

6 comments

6 Comments

Axzez Support

Nov 15, 2022

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Hello Holger,

Unfortunately we have not tested our OS in anything but our Interceptor Carrier Board, so I cannot say how useable it would be in the CM4 IO Board. Is there a reason you put the CM4 in the IO Board to back it up instead of just using your Interceptor Carrier Board for this?

Holger Falkenstein

Nov 17, 2022

Replying to

Hi. As I am not really "fluent" in Raspi Pis or CM4s or such, my process is as follows.

Installing your software: I had your software copied to a USB stick, inserted that into the Interceptor board (with the CM4 attached to it, of course). Attached a monitor to it via HDMI. Then connected power, and waited for that little menu of yours to appear. I chose "install", it installed well and works. I am NOT using a SD card, my CM4 has eMMc storage(or whatever the storage on the module is called)

In order to back up the whole system, i want to create an image of the software on the CM4. I thought the only way to achieve that is to take the CM4 out of the Interceptor board and plug it into an IO Board. The IO Board has a switch that allows me to start the CM4, showing the emmc storage as a regular drive in Windows 11. So then I can use Win32DiskImager to make an image of the software on the CM4 (I just create an image of that drive that is the emmc storage of the CM4) and save that away. With your software on the CM4, the CM4 does not boot into that specific mode.

So now I do not know how to create an image of the software on the CM4. I am not aware of how this would work with the CM4 in the INterceptor board.

Axzez Support

Nov 17, 2022

•

Replying to

Got it! So, yes, it should be possible to backup your MMC via the Interceptor Carrier Board. I have not tried this solution, but I did see it discussed on the RPi forums: https://gitlab.com/bztsrc/usbimager

A simpler option would be to just us "dd" to read the mmc and output everything to a file that you can store on a USB flash drive. Something like:

sudo dd if=/dev/mmblk0 of=backup.img bs=128k

Holger Falkenstein

Nov 27, 2022

Replying to

Hi, thank you for that. I found a way that worked for me with stuff I already had at hand, just needed to try it out.

I used Raspberry OS 64 bit with some tweaks as Leepspvideo shows them on his channel, so KDE Plasma and a tool called PI Safe included. I put the OS on a USB stick and startet the CM4 on the Interceptor with it.

It has Pi Safe on it, a nice tool to backup Raspi OS. And it really works nicely with the eMMC storage on the CM4 in the Interceptor board. So as a result i get an image of the system on the CM4, shrinked significantly in size, too.

Thanks for all your help and input.

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How to backup CM4 module on interceptor ?

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