I'm upgrading to a new distro (from Linux Mint 15 -> 16) by performing a fresh installation to a new drive, and referencing my original drive as needed.I've currently booted to my new installation (Linux Mint 16), and I've mounted my original drive (Linux Mint 15), so I can access all the raw data just fine. It'd be convenient if I could see the packages that I had installed previously without the (admittedly minor) hassle of swapping my cables and rebooting back and forth.Basically I'm looking for an alternative to dpkg --get-selections (or apt equivalents, etc) that I can use on a non-running drive, such as a raw file location where this info may be stored. (Edit: By non-running I mean that it is attached and running, but was not booted, and is mounted on /mnt/old or some such.)Is this a Thing That Can Be Done?
is it possible to determine installed packages on a secondary mounted drive?
linux mint;apt;dpkg
Assume you mean with non-running that it is attached and running, but was not booted, and mounted on /mnt/old:dpkg --root=/mnt/old --get-selectionsshould work. You can also boot the old partitions once and redirect the output of dpkg --get-selections to a file ones and read from that.