How can I create multiple of the same crossdev targets?

[epenguin]

If I run

Code: Select all

crossdev -S -t aarch64-unknown-linux-gnu --genv 'USE="cxx multilib fortran -mudflap nls openmp -sanitize"'

I think this will create a raspberry pi 3 b+ toolchain with all the stages required to run gentoo. The problem is I need multiple of these for different systems (some raspberry pi 3 b+ will be different than others). Is there a way to rename these targets so when I call emerge as <TARGET>-emerge <stuff> it doesn't emerge for every system? Ideally it would looking something like

Code: Select all

crossdev -S -t aarch64-unknown-linux-gnu --name "rpi-3bp-gentoo-v1"

and

Code: Select all

crossdev -S -t aarch64-unknown-linux-gnu --name "rpi-3bp-gentoo-v2" # where v2 has a bunch of different packages than v1.

So that way I can call

Code: Select all

rpi-3bp-gentoo-v2-emerge -a apackage

and this wont affect v1.

[pingtoo]

Because your described usage use exact same toolchain so I am uncertain what is the intention here. For simple typing let's call the two toolchain t1 and t2 and assume it is possible do as exactly your description.

I think you want when you call t1-emerge -a t1-apackage you want t1-apackage installed in /usr/t1/ and call t2-emerge -a t2-bpackage and t2-bpackage will be installed in /usr/t2/ but what do you want for /usr/t1/ and /usr/t2/? do you want to copy them to t1-rpi3bp/t2-rpi3bp as root file system?

I wonder using binpkg host may be able to do above? For example create one toolchain and emerge --buildpkg t1-apackage t2-bpackage, so you have superset contain all binpkgs of you need than on individual rpi3 emerge --get-binpkg/--get-binpkgonly --usepkg/--usepkgonly t1-apackage (or t2-bpackage)

I think it is possible to have two or more same crossdev toolchains but you will need to rename each /u/<target> to /u/<unique-target> than modify /u/<target>/etc/portage/make.conf's ROOT=/usr/<unique-target> and you also need to rename <target>-emerge to <unique-target>-emerge. I never done this before so above just my guess.

[epenguin]

I think it is possible to have two or more same crossdev toolchains but you will need to rename each /u/<target> to /u/<unique-target> than modify /u/<target>/etc/portage/make.conf's ROOT=/usr/<unique-target> and you also need to rename <target>-emerge to <unique-target>-emerge. I never done this before so above just my guess.

The reason I would want two separate systems is because they would be configured in drastically different ways. I actually tried to straight up just untar the stage 3 files for the pi into /usr/rpi-gentoo, but calling rpi-gentoo-emerge didn't work. Wasn't found.
I'm going to try this again today and give an update.