Cannot disable defaults channel

[jmakov]

Troubleshooting docs

• My problem is not solved in the Troubleshooting docs

Anaconda default channels

• I do NOT use the Anaconda default channels (pkgs/* etc.)

How did you install Mamba?

Mambaforge or latest Miniforge

Search tried in issue tracker

defaults

Latest version of Mamba

• My problem is not solved with the latest version

Tried in Conda?

Not applicable

Describe your issue

Wanted to disable defaults channel after install step in makefile. Copy pasting the command from the docs results in error. Also if it's not recommended, why isn't it disabled by default? mamba create --override-channels ... returns

usage: mamba create [-h] [--clone ENV] (-n ENVIRONMENT | -p PATH) [-c CHANNEL] [--use-local] [--override-channels] [--repodata-fn REPODATA_FNS] [--experimental {jlap,lock}] [--strict-channel-priority] [--no-channel-priority] [--no-deps | --only-deps] [--no-pin] [--copy] [-C] [-k] [--offline] [-d] [--json] [-q] [-v] [-y] [--download-only] [--show-channel-urls] [--file FILE] [--no-default-packages]
                    [--solver {classic,libmamba} | --experimental-solver {classic,libmamba}] [--dev]
                    [package_spec ...]
mamba create: error: one of the arguments -n/--name -p/--prefix is required

More info here: conda-forge/miniforge#542

mamba info / micromamba info

No response

Logs

No response

environment.yml

No response

~/.condarc

No response

[jonashaag]

Thanks, I think it should have been mamba env create. Mind double
checking and sending a PR?

It is disabled by default in most installations, but it is a very common mistake people make and so it is documented very aggressively in the troubleshooting guide.

[jmakov]

Oh, so I don't have to disable it manually.
Doesn't seem to work for me:

$ mamba env create --override-channels ...
usage: mamba [-h] {create,export,list,remove,update,config} ...
mamba: error: unrecognized arguments: --override-channels
$  mamba --version
mamba 1.4.2
conda 23.3.1

[jonashaag]

I don't understand why you don't have the option. With Conda 23.10:

conda create --override-channels -p /tmp/x -c conda-forge

works

[AntoinePrv]

@jmakov if you want to disable defaults channels alltogether, you can also add to your .condarc:

default_channels: []

[jmakov]

Thanks. So to share my case - I'm installing mamba from a makefile and wanted to copy paste the command from the docs.

[jonashaag]

It seems like the docs are invalid: conda/conda#10498