Can I install a new dietpi on the old dietpi system?

[xczh]

I am currently using the dietpi v6 system, which is too old to automatically update. I plan to install the v9 system, but I don't have an SD card writer. Currently, I'm able to access the existing dietpi v6 system through SSH. Can I use SSH to flash the v9 system image? For example, using dd.

Thanks a lot :)

[Joulinar]

Yes you can use dd to write the image

[xczh]

Yes you can use dd to write the image

Thank you for your reply 😄

Can you give an example? Will using dd on a running dietpi system cause malfunctions?

root@DietPi:~# df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/root        59G  1.8G   55G   4% /
devtmpfs        455M     0  455M   0% /dev
tmpfs           488M     0  488M   0% /dev/shm
tmpfs           488M   13M  475M   3% /run
tmpfs           5.0M     0  5.0M   0% /run/lock
tmpfs           488M     0  488M   0% /sys/fs/cgroup
tmpfs            50M     0   50M   0% /var/log
tmpfs           1.0G  4.0K  1.0G   1% /tmp
/dev/mmcblk0p1  253M   47M  206M  19% /boot

It seems that the SD card device is /dev/mmcblk0.

[Joulinar]

You can't write to the very same SD card. It would require a 2nd one or a USB pen stick if your system supports booting from USB.

[xczh]

Understood. I'm using Raspberry. There is no separate SD card reader left. It seems that we have come up with other ways.

[Joulinar]

Theoretically we could try to update current system. Depending on RPi model, you could use USB stick

[MichaIng]

You can also run the dietpi-installer on a running DietPi system, which will end up in a fresh system will all data purged. But there is a branch you can still use to update. I'll provide you with the information in some minutes.

[MichaIng]

See here: #6963 (comment)

Otherwise the installer: https://dietpi.com/docs/hardware/#script-execution
But it does not work on Buster anymore, in case your system is still Buster. In this case it would be also possible to use an older version of the script.