>>/10262/
Better:
> $ sudo apt update
> [...]
> $ grep security /etc/apt/sources.list | sudo tee /etc/apt/security.sources.list
> deb http://security.ubuntu.com/ubuntu/ trusty-security main restricted universe multiverse
> $ sudo apt-get upgrade -o Dir::Etc::SourceList=/etc/apt/security.sources.list
> [...]354 upgraded, 9 newly installed, 0 to remove and 6 not upgraded.[...]
> After this operation, 435 MB of additional disk space will be used.

 >>/10272/
The author of that thread replied that "zdb -bcsvL -e poolname" is unrelated to being able to import it read-only and in the OP he meant that he couldn't import it as read-write. I think the zdb docs basically say that that command just verifies the checksums on all the blocks. Now it says:
>  316G completed ( 19MB/s) estimated time remaining: 125hr 45min 14sec
if that zdb command doesn't check metaslabs I guess it would complete no-problem if there's no checksum mismatches.

 >>/10273/
I'm using a Lubuntu ISO from years ago, and if I can, it's probably better to use Debian because that's more up-to-date. When I SSH in it says "Welcome to Ubuntu 14.04 LTS (GNU/Linux 3.13.0-24-generic i686)".

> Average live disc user has root completely accessible
I see that running "sudo echo" = don't have to enter any password, and I did set a password for my normal user account which I have to enter to ssh in.

Derpian image = Brave > https://invidious.private.coffee/n-0337x_ngM?t=12 > right click on video > Save video frame as...