Questions about omv-regen

I'll try which is the easiest way. At least now I have several alternatives.

Quote from ryecoaaron

You could also pipe the output of the functions at the end of the script in the case statement to a log file. That would take very little work.

I finally used that method. The operation is simple and safe. And, as you said, it required very few changes, a single line. Although I also added a log for the backup function. I didn't even try the alternative of using the exec command. Now omv-regen provides the log with the last output of a regeneration or a backup.

Crear /var/log/omv-regen.log · xhente/omv-regen@fca7ced

github.com

Thanks!!

Quote from ryecoaaron

I recommend including stderr (2>&1 before the pipe) to the log file.

I understood that tee will also log errors when writing to the file.

Thank you. I've still improved it a little more. I have configured the pipeline so that it does not delete old logs and I have configured logrotate for a period of 4 weeks. I think there is a good log now.

Quote from Cezi_86

Great work with omv-regen! I really admire your hard work.

Thank you!

Quote from Cezi_86

I just wonder, why it requires to have exactly the same disks set instead of just the same file system with particular UUID. I tried to disable it, but I do not speak Spanish and it was hard for me go understand the script. I tried to comment few lines in "if" at around 1069-1073 line, but failed.

Well, I simply needed some kind of check to ensure the filesystems are online and prevent errors during regeneration. I thought that was a valid way to do it. I might re-study it and try changing that to check filesystems and UUIDs instead of disks. But I think that might create conflicts if there are settings in the SMART tab, I'm not sure right now, I'd have to look into it. That was probably the reason for doing it this way, I don't remember.

If you want to disable that control you can do this. Add a line between 1078 and 1079 with ValRegDiscos="" That will make the data disk check always positive.

Regarding the Spanish language, I assume you are referring to the comments in the code. I can add the translation for easier understanding if you think that helps. The rest are variable names, the texts that are printed in the shell or dialog are always in Spanish and English.

Quote from Cezi_86

It would be great to be able migrate config to another system, or prepare system with omv-regen but without data drives and swap os disk to minimalize downtime.

That's an interesting idea. It could open the doors to other ways of using omv-regen. I have to think about this more carefully.

Quote from Cezi_86

I do not speak Spanish and it was hard for me go understand the script

I just added translations to all the code comments, I hope that helps you understand how it works. The names of functions and variables will remain in Spanish, sorry, make an effort like I do when I read code in English

I haven't created a new version for this. If you want to update your script simply delete it and reinstall it. The settings will be maintained:

sudo rm /usr/sbin/omv-regen

sudo wget -O - https://raw.githubusercontent.com/xhente/omv-regen/master/omv-regen.sh | sudo bash

Quote from ryecoaaron

You need to make the script shorter so I can paste the whole thing in google translate

My browser automatically translates everything it sees with the push of a button. I use it continually. Also works on github pages. In the case of reading code it is uncomfortable because some things you want to translate and others you don't. So, button up, button down

Actually it would be good for me to shorten the script. Shellcheck has been crying for a long time every time I try to check

omv-regen now accepts encrypted hard drives during regeneration.

Post

RE: Migrate OMV to new platform

omv-regen 7.0.13 will accept encrypted disks according to what we have said in this thread.
@MarcS The issue of the order of the disks is still missing, but now I can't continue, I have to go. I think that should not prevent you from doing the regeneration despite the warning. When I can I'll look at that.

chente

May 18th 2024

Quote from Petr_d

My all data is on ZFS pool so the first thing I have to do on freshly installation of OMV is installation of PXE kernel and ZFS plugin. Is this blocking condition to run restore?

You shouldn't worry about that, when you run the regeneration select the option to install a proxmox kernel. omv-regen will install the same proxmox kernel that was installed on the original system. After that omv-regen will install the ZFS plugin and mount the filesystems including the ZFS pool. Simply follow the prompts, run the regeneration on a clean system and omv-regen will set everything up as it was. You will not be able to run the regeneration if it is not on a clean system.

Regarding existing hard drives, it is effectively just a warning. If you are sure that all data hard drives in the original system are connected, continue ahead.