How to create a host restore point? pve 6.2.4

[diversity]

When doing an update using the GUI I noticed that when I reboot the host I get presented an option at early boot to select the boot environment. (e.g. use the current updated kernel or use the kernel from before the update)

is there any way to create such a restore point without actually updating the host?

Also would using a previous boot environment enable recovering from critical failures resulting from installing *.deb patch files?

 

[diversity]

Ok I went in head first and dpkg -i .deb files. Luckily that created a restor point because I got stuck and now am back again. I am relieved.

Is there anyway to create such restore points before making quite drastic changes?

 

[Stefan_R]

The GRUB menu does not show restore points, but just older kernels. Even if you select an older kernel to boot, your files and data will be entirely unaffected and still on the latest state.

Ok I went in head first and dpkg -i .deb files.

I'm not sure what you mean by that, in general, using 'dpkg' is discouraged, running 'apt', especially 'apt dist-upgrade' should be enough to keep your system up to date.

 

[diversity]

I needed to patch the kernel because of pci flr issues when passing through onboard sound on amd64, ryzen zen2 system.
did not work out.