Could you tell me, whats the difference between:
$Bundle update
and
$Bundle install
The commands bundle & bundle install also have the same functionality. bundle uses Thor, and bundle 's default task is install .
bundle install is a command we use to install the dependencies specified in your Gemfile.
Updating a Gem Without Modifying the Gemfile This command will update rack-cache and its dependencies to the latest version allowed by the Gemfile (in this case, the latest version available). It will not modify any other dependencies.
The correct way to update the version of a gem to a specific version is to specify the version you want in your Gemfile, then run bundle install . As for why your command line was failing, there is no -version option.
The Install Versus Bundle feature describes the two modes, Install mode and Bundle mode and how to set the mode of operation.
We recommend that you do not alter the packages.conf and .pkg files unless directed by a Cisco Technical Assistance Center (TAC) engineer. The Bundle mode uses monolithic Cisco IOS images to boot a switch. The Bundle mode consumes more memory than the Install mode because the packages are extracted from the bundle and copied to RAM.
Perform the following steps to convert the mode of operation from Install mode to Bundle mode: Enables privileged EXEC mode. Enter your password if prompted. Verifies the mode of operation.
The Bundle mode uses monolithic Cisco IOS images to boot a switch. The Bundle mode consumes more memory than the Install mode because the packages are extracted from the bundle and copied to RAM. A standalone switch operates as the active switch .
bundle update
and bundle install
can both install the gems you specified in Gemfile but missing in gems.
But bundle update
does one thing more to upgrade:
If the gems specified in Gemfile have version controlled with ~>
, it will upgrade to the latest at the final digit, the patch version.
For example, if you have a gem in Gemfile
'foo_gem', '~> 2.1.0'
bundle update
will check if newer version of 2.1.x is available in cloud. Say your current version is 2.1.2 and what's latest in cloud is 2.1.5, it will install 2.1.5. But if 2.2.6
is the newest, it won't do anything.
Better practice in my opinion
Always add version to critical gems like rails
.
Stick to bundle install
(or bundle
which is default to install
) in most cases. Only do bundle update
when it's really necessary and you are fully prepared for the result.
Bundle Update
s the gems specified (all gems, if none are specified), ignoring the previously installed gems specified in the Gemfile.lock. In general, you should use bundle install
to install the same exact gems and versions across machines.
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