Backup Proxmox installed on SD card in HP Proliant

[gonzalo.garcia.ncp]

Hi everyone,

I'm running Proxmox 8.0.3 on an HP Proliant DL380E G8 14LFF server, and the OS is installed on an SD card. I need to back up the entire SD card and Proxmox configuration to quickly restore if the SD card fails.

What's the best way to back up the entire SD card?
What's the recommended process to restore Proxmox from these backups?

Any advice would be greatly appreciated.
Thanks!

 

[gfngfn256]

First you'll need to power down the system. Then:
In Linux:
dd if=/dev/sdcardXX of=/path/sd-card-copy.img (replace sdcardXX with the correct one)
In Windows:
Use Win32 Disk Imager.

 

[Kingneutron]

It depends. Are you using standard ext4 rootfs + LVM? Then use veeam agent for linux, no need to power off.

https://www.youtube.com/watch?v=g9J-mmoCLTs



Answer is greatly different if using ZFS boot/root.

I would also strongly recommend switching to a more robust boot media, such as SSD with a high TBW rating.