this post was submitted on 10 Nov 2023
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Hi everyone! I'm trying to prepare a live iso with a USB stick including the additional rescuezilla package (or, alternatively, additional packages for a live rescuezilla .iso). Sadly rescuezilla does not support encryption, and so I'd like to be able to create/encrypt an image on one single live iso, not having to do a double iso boot just for this. I'm trying to do this in a manner that I won't need internet once I need to use this USB stick. And hence...I found the most quoted command as:

apt-get download $(apt-rdepends |grep -v "^ ")

But this seems to work ONLY if your package is also part of the repo. If it's an external .deb such as rescuezilla_2.4.2-1_all.deb is, then the command just fails with:

Reading state information... Done
W: Unable to locate package ./rescuezilla_2.4.2-1_all.deb
E: Handler silently failed

So...what can I do to download the many dependencies of rescuezilla onto a USB stick? Thanks!

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[–] Guenther_Amanita@feddit.de 0 points 10 months ago* (last edited 10 months ago) (1 children)

Install Distrobox first and work inside that container.

Messing with dependencies of a program not in your package manager can result in bricking your OS (which will take some time to fix and that will be annoying).
In DB, all dependencies will be self contained and your host OS will stay clean. You can imagine it similar to how Flatpaks work.

Then, follow the other's procedures.

[–] iturnedintoanewt@lemm.ee 0 points 10 months ago (1 children)

Thanks! How does this work with OS permissions? As it's rescuezilla and veracrypt I'm trying to use, both need access to the system partitions in order to be able to mount/read/copy to them. Flatpak can be a bit limited regarding permissions...Moreso on a live iso I guess.

[–] Guenther_Amanita@feddit.de 0 points 10 months ago* (last edited 10 months ago)

DB only gives you the dependencies, but is otherwise not sheltered. It still has access to all host OS files, including hard drives and other stuff.

Sadly, I'm not super experienced with it, and I use it on an immutable distro, where can't change that much, at least nothing on the root level.

You would have to read the documentation or google it yourself sadly, I'm out of luck here for you.

I still hope my suggestion was successful :)

[–] Ghostbusterinthemach@lemmy.world 0 points 10 months ago (1 children)

I’m not at a computer to verify, but dpkg -I package.deb will list dependencies of a deb file, so apt-get download $(dpkg -I rescuezilla_2.4.2-1_all.deb) might work.

[–] iturnedintoanewt@lemm.ee 0 points 10 months ago* (last edited 10 months ago)

apt-get download $(dpkg -I rescuezilla_2.4.2-1_all.deb)

Thanks a lot! While it wasn't as simple as that, it did indeed point me onto the right direction. This command did the trick for me:

apt download $(dpkg -I rescuezilla_2.4.2-1_all.deb | grep -oP '(?<=Depends: ).*' | tr -d ',')

The grep goes there to list only what comes after "Depends:". The -oP enables the python command to remove the string matching itself, so it leaves the whole list after the match... otherwise it also tries to download a package named "Depends:". And the tr -d ',' is to remove the commas separating each package, otherwise it fails to find them.