How do I update firmware on server hardware?

Updating firmware on server hardware keeps your infrastructure stable, secure, and performant. Here’s a step-by-step process to do it safely.

1. Plan and Prepare

a. Research

Check the vendor’s documentation for firmware updates from the server manufacturer (Dell, HP, Lenovo, Supermicro) or component vendors (Intel, AMD, Broadcom).
Review release notes so you know what the update includes — bug fixes, performance enhancements, security patches.

b. Identify components that need updates

Motherboard/BIOS/UEFI
RAID controllers
Storage devices (HDD/SSD)
Network interface cards (NICs)
GPUs, TPUs, or other accelerators
Baseboard Management Controllers (iDRAC, iLO, etc.)

c. Backup

Perform a full backup of critical systems in case the update causes instability or fails.
Create snapshots of virtual machines if applicable.

d. Plan downtime

Firmware updates often require reboots. Schedule them during maintenance windows to minimize disruption.

e. Verify compatibility

Confirm the firmware is compatible with your server hardware and software versions.

2. Download Firmware

Go to the hardware vendor’s official website.
Locate the firmware for your exact model and version.
Verify the checksum (MD5/SHA256) after downloading to ensure the file is intact.

3. Update Methods

Several approaches exist depending on vendor and environment:

a. Vendor-Specific Management Tools

Dell: OpenManage, iDRAC Lifecycle Controller
HP: Smart Update Manager (SUM), iLO
Lenovo: XClarity Administrator
Supermicro: Supermicro Update Manager
These tools often allow remote updates and can automate installation.

b. Bootable USB or ISO

Create a bootable USB drive or ISO image from the vendor’s media.
Boot the server from it and follow the on-screen instructions.

c. Command-Line Utilities

Dell: racadm for iDRAC updates.
HP: hpsum for HP servers.
Intel: Tools for network cards and CPUs.

d. Operating System-Level Updates

Some firmware can be updated from the OS using vendor utilities or packages (e.g., Linux fwupd).

e. Remote Update via BMC

Most servers include a Baseboard Management Controller (BMC) — Dell iDRAC, HP iLO, etc. — that lets you push firmware updates through a web interface.

4. Perform the Update

a. Follow Vendor Instructions

Stick to the vendor’s documented procedure to avoid bricking the hardware.

b. Monitor the Process

Never interrupt an update in progress; it can corrupt firmware and render the device unusable.

5. Post-Update Tasks

a. Verify Success

Check logs to confirm the update completed.
Verify the firmware version in BIOS/UEFI or management software.

b. Test Hardware

Validate server and component stability and functionality.

c. Update Documentation

Record the firmware version and update date for future reference.

d. Repeat for Redundant Components

If you run redundant servers, repeat the process on the remaining nodes.

6. Troubleshooting

If the update fails:

Revert to the previous firmware version if the vendor provides rollback functionality.
Contact the vendor’s support team for further assistance.