MinIO Quickstart Guide

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MinIO is an object storage server released under Apache License v2.0. It is compatible[1] with Amazon S3 cloud storage service. It is best suited for storing unstructured data such as photos, videos, log files, backups and container / VM images. Size of an object can range from a few KBs to a maximum of 5TB.

MinIO server is light enough to be bundled with the application stack, similar to NodeJS, Redis and MySQL.

[1] MinIO in its default mode is faster and does not calculate MD5Sum unless passed by client. This may lead to incompatibility with some S3 clients like s3ql that heavily depend on MD5Sum. For such applications start MinIO with --compat option.

minio --compat server /data

Docker Container


docker pull minio/minio
docker run -p 9000:9000 minio/minio server /data


docker pull minio/minio:edge
docker run -p 9000:9000 minio/minio:edge server /data

Note: Docker will not display the autogenerated keys unless you start the container with the -it(interactive TTY) argument. Generally, it is not recommended to use autogenerated keys with containers. Please visit MinIO Docker quickstart guide for more information here



Install minio packages using Homebrew

brew install minio/stable/minio
minio server /data

NOTE: If you previously installed minio using brew install minio then it is recommended that you reinstall minio from minio/stable/minio official repo instead.

brew uninstall minio
brew install minio/stable/minio

Binary Download

Platform Architecture URL
Apple macOS 64-bit Intel
chmod 755 minio
./minio server /data


Binary Download

Platform Architecture URL
GNU/Linux 64-bit Intel
chmod +x minio
./minio server /data
Platform Architecture URL
GNU/Linux ppc64le
chmod +x minio
./minio server /data

Microsoft Windows

Binary Download

Platform Architecture URL
Microsoft Windows 64-bit
minio.exe server D:\Photos



Install minio packages using pkg

pkg install minio
sysrc minio_enable=yes
sysrc minio_disks=/home/user/Photos
service minio start

Install from Source

Source installation is only intended for developers and advanced users. If you do not have a working Golang environment, please follow How to install Golang. Minimum version required is go1.12

GO111MODULE=on go get

Allow port access for Firewalls

By default MinIO uses the port 9000 to listen for incoming connections. If your platform blocks the port by default, you may need to enable access to the port.


For hosts with iptables enabled (RHEL, CentOS, etc), you can use iptables command to enable all traffic coming to specific ports. Use below command to allow
access to port 9000

iptables -A INPUT -p tcp --dport 9000 -j ACCEPT
service iptables restart

Below command enables all incoming traffic to ports ranging from 9000 to 9010.

iptables -A INPUT -p tcp --dport 9000:9010 -j ACCEPT
service iptables restart


For hosts with ufw enabled (Debian based distros), you can use ufw command to allow traffic to specific ports. Use below command to allow access to port 9000

ufw allow 9000

Below command enables all incoming traffic to ports ranging from 9000 to 9010.

ufw allow 9000:9010/tcp


For hosts with firewall-cmd enabled (CentOS), you can use firewall-cmd command to allow traffic to specific ports. Use below commands to allow access to port 9000

firewall-cmd --get-active-zones

This command gets the active zone(s). Now, apply port rules to the relevant zones returned above. For example if the zone is public, use

firewall-cmd --zone=public --add-port=9000/tcp --permanent

Note that permanent makes sure the rules are persistent across firewall start, restart or reload. Finally reload the firewall for changes to take effect.

firewall-cmd --reload

Test using MinIO Browser

MinIO Server comes with an embedded web based object browser. Point your web browser to ensure your server has started successfully.


Test using MinIO Client mc

mc provides a modern alternative to UNIX commands like ls, cat, cp, mirror, diff etc. It supports filesystems and Amazon S3 compatible cloud storage services. Follow the MinIO Client Quickstart Guide for further instructions.

Pre-existing data

When deployed on a single drive, MinIO server lets clients access any pre-existing data in the data directory. For example, if MinIO is started with the command minio server /mnt/data, any pre-existing data in the /mnt/data directory would be accessible to the clients.

The above statement is also valid for all gateway backends.

Upgrading MinIO

MinIO server supports rolling upgrades, i.e. you can update one MinIO instance at a time in a distributed cluster. This allows upgrades with no downtime. Upgrades can be done manually by replacing the binary with the latest release and restarting all servers in a rolling fashion. However, we recommend all our users to use mc admin update from the client. This will update all the nodes in the cluster and restart them, as shown in the following command from the MinIO client (mc):

mc admin update <minio alias, e.g., myminio>

Important things to remember during upgrades:

Explore Further

Contribute to MinIO Project

Please follow MinIO Contributor's Guide


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