I have an M1 MacBook Air. I use UTM to run a Debian 11 virtual machine.

After the initial setup, updating and upgrading, installing Firefox and a few small programs, (I almost called them apps, d'oh), the Debian.utm file size was about 6GB. Now, less than a month later, it's almost 9GB.

The VM size increases after each use. I haven't downloaded or installed anything close to 3GB worth. I have downloaded files, then put them into the trash and emptied the trash, could the trash not be emptying properly?

I have run ncdu, but nothing stands out. When I drill down into /usr and into each large folder, no sub folder is larger than a few 100MB. I can't see any big files lurking.

I've googled using many search terms, but I can't get past results that are about how to increase the size of a VM that is running out of room.

Thanks very much for reading this, any ideas?

Hi all,

I’m looking for advice re making a full snapshot/backup of a running Linux system (Debian).

In an ideal world, should an issue occur, I would like to be able to load a live USB with the backup, boot and write from that.

Timeshift seems to be an option but I’m wondering how the above would work in my case. A few questions.

1. My disk is fully encrypted with LUKS. Would this pose a problem?
2. I would like to write my backups to a veracrypt container. Would this pose any issue? I’m not sure how I would boot from a live USB in this case I could not decrypt the USB.

Essentially I’d like a step-by-step guide to backing up my full system (including all files in home) in such a way that I can easily roll back should the worst happen. Do any of you know of such a guide or can perhaps offer some help?