Installing Linux Mint on a Dedicated SSD

May 11, 2025
8 min read
Tutorial
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Recently, I decided to breathe new life into an old 120GB SSD I had lying around by turning it into a dedicated Linux boot drive. My main PC, a capable machine with a Ryzen 5 processor, 16GB of RAM, and an NVIDIA GTX 1060 6GB graphics card, seemed like the perfect candidate for this experiment. This post details my journey, the hurdles I encountered, and what I learned along the way.

Linux Mint desktop setup

Phase 1: Preparation & Creating the Bootable USB

The first step was choosing a distribution. After some research, I settled on Linux Mint (Cinnamon Edition). It's often recommended for users transitioning from Windows due to its user-friendly interface and solid performance out-of-the-box.

I downloaded the latest ISO from the official Linux Mint website and then used Rufus on my Windows system to create a bootable USB drive. During this process, Rufus presented a dialog box stating:

"This image uses Syslinux 6.04/20240408 but this application only includes the installation files for Syslinux 6.04/pre1... two additional files must be downloaded from the Internet ('ldlinux.sys' and 'ldlinux.bss')."

This essentially means the Linux Mint ISO needed specific bootloader files that weren't bundled with my version of Rufus. I clicked "Yes" to allow Rufus to download them, which is crucial for the USB to boot correctly.

Rufus creating bootable USB

Phase 2: The First Boot & Initial Hurdles

With the bootable USB ready, I restarted my PC, entered the BIOS/UEFI settings, and set the USB drive as the primary boot device. Success! The Linux Mint live session started up. However, my initial experience was, to put it mildly, sluggish. As I mentioned during the process, it felt like "operating on a potato." This is normal when running a full OS from a USB stick, as USB speeds are significantly slower than an internal SSD.

Once on the live desktop, I launched the installer. My first hiccup came at the "Installation type" screen. I initially hoped to use the "Install Linux Mint alongside..." option, but it wasn't detecting my 120GB SSD as a target; it only showed an external USB drive I had connected for other purposes.

Phase 3: The BIOS/UEFI Deep Dive - The AHCI Breakthrough

This is where the real troubleshooting began. I suspected a BIOS/UEFI setting was preventing the installer from seeing the SSD correctly. Since my system previously ran Windows 11, I knew there were a few settings to check:

Important: If you're dual-booting with an existing Windows installation on another drive that was installed in RST/RAID mode, changing this to AHCI can prevent Windows from booting unless you prepare Windows for the change beforehand, usually by booting into Safe Mode once before and once after the change.

After changing to AHCI mode and saving the BIOS settings, I rebooted from the Linux Mint USB again. This time, when I chose the "Something else" option in the installer (for manual partitioning), my 120GB SSD was visible!

Phase 4: Installation & First Impressions on SSD

With the SSD detected, the rest of the installation was more straightforward using the "Something else" option. I deleted any existing partitions on the 120GB SSD to create unallocated space. Then, I created the necessary partitions for Linux Mint:

Linux partition setup

I made sure the bootloader was set to install to the 120GB SSD (e.g., /dev/sda, not a specific partition). The installation process took about 10-15 minutes. Once completed, I restarted the PC, removed the USB drive when prompted, and... success!

Linux Mint booted up from the SSD, and the difference in performance was night and day compared to the live USB session. Everything was snappy, applications launched quickly, and the system felt incredibly responsive. The "potato" was gone, replaced by a sleek, fast operating system.

Conclusion: A Rewarding Learning Experience

This installation journey was a fantastic learning experience. The key takeaways for me were:

If you're considering installing Linux, especially on a dedicated drive, don't be discouraged by initial hurdles. A bit of research and careful attention to BIOS/UEFI settings can solve most detection issues. The end result – a fast, customized Linux system – is well worth the effort. My old 120GB SSD has found a new, speedy purpose!

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