{"id":515,"date":"2024-03-06T22:30:52","date_gmt":"2024-03-06T21:30:52","guid":{"rendered":"https:\/\/jbsoft.nl\/site\/?p=515"},"modified":"2024-03-11T12:16:37","modified_gmt":"2024-03-11T11:16:37","slug":"home-assistant-on-raspberry-pi-5-with-nvme-pcie-ssd","status":"publish","type":"post","link":"https:\/\/jbsoft.nl\/site\/home-assistant-on-raspberry-pi-5-with-nvme-pcie-ssd\/","title":{"rendered":"Home Assistant on Raspberry Pi 5 with NVMe PCIe SSD"},"content":{"rendered":"\n

Recently Raspberry Pi 5 support was added for Home Assistant OS<\/a>. The new model is twice as fast as its predecessor and add new features like a PCIe bus. The discussion started<\/a> on how to use NVMe SSD’s directly connected to the PCIe bus.<\/p>\n\n\n\n

M2 PCIe hats<\/code> for Raspberry Pi 5<\/h2>\n\n\n\n

There are several PCIe hats you can buy, but there is no official Raspberry Pi hat yet, but there is an official Raspberry 5 case and Active Cooler.<\/p>\n\n\n\n

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The Raspberry Pi + Active cooler fits in the case if you remove the standard fan.<\/p>\n\n\n\n

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An option is to attach an SSD over USB3. This works okay, but the performance is limited for NVMe PCIe SSD’s that have higher throughput than SATA SSD drives.<\/p>\n\n\n\n

The Raspberry Pi 5 now brings a second alternative by allowing to connect an NVMe SSD directly to the PCIe connector.<\/p>\n\n\n\n

An M2 hat exists that directly connects to the PCIe port and also fits inside the original Raspberry Pi 5 case, together with the original Raspberry Pi active cooler.<\/p>\n\n\n\n

The Geekworm X1003<\/a> mounts on top of the Raspberry Pi 5 and active cooler and even allows to install the top cover (if that is desired).<\/p>\n\n\n\n

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Install an NVMe SSD<\/h2>\n\n\n\n

The Geekworm X1003 fits 2242 (42 mm) and 2230 (30mm) size NMVe SSD’s. There is a nut at the 2242 position, but you might be needing a soldering iron if you want to move the nut to the 2230 position.<\/p>\n\n\n\n

At the moment most nVME SSD’s are 2280, and for that size you need a different hat, e.g. the Geekworm X1001 or X1002, but those will not fit into the original case. I found a cheap SAMSUNG 2242 SSD at Amazon<\/a>. This model uses a feature named HMB (Host Memory Buffer) which requires some extra attention which I will address later. After we have mounted the SSD (make sure the PCI FFC cable is installed correctly) we can continue with the next step.<\/p>\n\n\n\n

Preparing the installation<\/h2>\n\n\n\n

To install Home Assistant OS we use the imager that is installed by default on the Raspberry PI OS image.<\/p>\n\n\n\n

So to start we need an SD-card with Raspberry PI OS <\/strong>flashed on it, do not flash Home Assistant OS on the SD card.<\/p>\n\n\n\n

We can prepare this using the Official Raspberry PI imager<\/a>. After the prepared SD card is installed in or Raspberry Pi 5 we can boot the Raspberry PI OS. When the OS is started we should be able to see if the NVMe SSD is recognized. To make sure the SSD works without issues we can use the dmesg<\/code> command. If there are issues with you SSD you will see the errors in the bootlog this command shows.<\/p>\n\n\n\n

Identify possible NMVe SSD issues<\/h2>\n\n\n\n

In my case there were a few issues I needed to address. I needed to …<\/p>\n\n\n\n