MongoDB Community 6.0.5 Illegal instruction (core dumped) ubuntu 18.04 on Cortex-A72 aarch64

test_test6 · 2023-04-27T09:17:40.321Z

I am trying to install and start a MongoDB on a fresh installation of Ubuntu 18.04.
I followed the setup tutorial and did the following steps:

curl -fsSL https://pgp.mongodb.com/server-6.0.asc | sudo gpg -o /usr/share/keyrings/mongodb-server-6.0.gpg --dearmor
echo “deb [ arch=amd64,arm64 signed-by=/usr/share/keyrings/mongodb-server-6.0.gpg ] MongoDB Repositories bionic/mongodb-org/6.0 multiverse” | sudo tee /etc/apt/sources.list.d/mongodb-org-6.0.list
apt-get update
apt-get install -y mongodb-org
systemctl start mongod

When I run systemctl status mongod I get the following error:

image820×627 31.7 KB

I tried the following things to fix this error:

Restart the service with systemctl
Uninstalling MongoDB with sudo apt-get purge mongodb-org* , deleting all /var/log/mongodb , /var/lib/mongodb directories and all other files containing the name mongo , as well as the user and usergroup mongodb
installing version 4.4/5.0 of Mongo DB，Still the same problem

I am really stuck here, I hope someone has an idea because MongoDB is essential to the stuff I’m working on arm…

chris · 2023-04-27T19:48:19.812Z

Needs a later version of Arm than you have.

You will be limited to v4.4 unless you compile from source.

Matt_Kneiser recently posted regrading this along with his repo and binaries.

Mongo 6.x on raspberry PI 4 compilation MongoDB Server Development

Hello! It looks like you’re on the right track. When you say you have custom compiled GCC, what do you mean by that? To build on WSL for the Pi you will need a cross-compiler toolchain - i.e. a compiler that runs on x86 but produces ARM binaries. You can use aarch64-linux-gnu-gcc for this, and it is distributed on Ubuntu 20.04’s package manager. One point of clarification is that the Raspberry Pi 4 uses an ARMv8-A Cortex A72. I’m not aware of a Pi 4 that uses ARMv7. In order to compile with S…

Graeme_Robinson · 2023-05-24T21:42:28.887Z

I was playing about with installs on Pi’s today:

4.4.18 is the most up-to-date release that ran on the Pi’s I have available (Pi3B, Pi4B and an Orange Pi 3LTS), i.e. on the ARMv8.0 microarchitecture. MongoDB 4.4.19 and later, 5.0 and later and 6.0 and later all need the ARMv8.2-A microarchitecture. There’s no Raspberry Pi available with that microarchitecture as far as I’m aware, but the Orange Pi 5 does have it so should - in theory - run MongoDB 5 and 6.
4.4.18 will not install on Ubuntu 22.04LTS - there’s missing libssl dependencies. Use Ubuntu 20.04LTS. Alternatively, I did find the Ubuntu packages for 4.4.18 installed without any apparent issue on the latest (Debian Bullseye based) Pi OS distributions. I haven’t dug too far into this and the possibility of incompatibilities with this combination exists so use at your own risk.
You’ll want to pin the installed packages to 4.4.18:

echo "mongodb-org hold" | sudo dpkg --set-selections
echo "mongodb-org-server hold" | sudo dpkg --set-selections
echo "mongodb-org-shell hold" | sudo dpkg --set-selections
echo "mongodb-org-mongos hold" | sudo dpkg --set-selections
echo "mongodb-org-tools hold" | sudo dpkg --set-selections
echo "mongodb-org-database-tools-extra hold" | sudo dpkg --set-selections

4.4.18 was released in November 2022 and probably supports most of the features people would want in a SBC based installation. If you do need access to newer versions, a free-tier Atlas instance is always an option.

Graeme_Robinson · 2023-12-27T23:46:17.917Z

Quick update.

I picked up a Pi 5 the other day, and I just confirmed it allows MongoDB 7.0.4 Community to install and run without any apparent issue using the official install guide. I had to use Ubuntu because Pi OS, being Debian based, is not supported on ARM64 and reports an incompatible architecture.

The only issue noted was the official Ubuntu image for Pi uses EXT4 where MongoDB recommends XFS for Wired Tiger, but for anything you are likely to do on a Raspberry Pi, I doubt it’ll make that much of a difference.

chris · 2023-12-27T23:53:03.843Z

Nice @Graeme_Robinson, but you should have bought enough Pi 5 for everybody.

Graeme_Robinson · 2023-12-30T22:48:26.033Z

One more update on this. Whilst MongoDB 7 is not currently supported on ARM64 hardware on Debian, ARM64 is supported on Ubuntu. It occurred to me that as both Ubuntu and Pi OS are Debian based, the Ubuntu MongoDB distribution might run on Pi OS.

Sure enough, following the install instructions for Ubuntu whilst running Pi OS (64 bit) on my Pi 5 resulted in a running MongoDB 7 Community installation.

Obviously, this is an untested combination so use at your own risk, but my guess is the chances of Pi OS specific problems occurring are pretty low.

The Pi 5 seems to run cooler - at least at idle - under Pi OS than Ubuntu. The fan in the official case isn’t loud, but it’s noticeable, and it was spinning up and down regularly on Ubuntu at idle whilst it’s silent at idle under Pi OS, so I’ll probably stick with Pi OS for this reason if nothing else.

Yay Pi 5.

chris · 2023-12-31T15:00:33.599Z

@Graeme_Robinson

Sounds like you should author an ‘authoritative’ post that we can point to once the Pi5 adopters start showing up.

I’d imagine that the storage can be repartitioned(or the installer configured to not autoexpand) such that a XFS partition can be created ?

Graeme_Robinson · 2024-01-20T01:22:52.519Z

chris:

Sounds like you should author an ‘authoritative’ post that we can point to once the Pi5 adopters start showing up.

How’s this?

DEV Community

Installing MongoDB 7.0 on the Raspberry Pi 5 Using XFS

The Raspberry Pi is awesome, and I've been using it for various fun projects for years. In preparing...

chris · 2024-01-20T14:18:40.613Z

Amazing @Graeme_Robinson.

Absolutely comprehensive, great resource.

steevej · 2024-01-20T14:25:32.542Z

I love the RPi too. I have a Pi 3 and 2 Pi 5 4.

From your article, Pi 5 is blazing fast compared with prior versions makes we want a 5 too.

swk_swk · 2024-08-12T15:29:21.019Z

here is my repo with some build instructions on x86 to cross-compile for cortex A53, A55 and A72.

Also I have shared pre-built binaries, tested on Longan Pi3H (Cortex A53)

GitHub

GitHub - 123swk123/mongodb-armv8-a: monogodb server for aarch64 (armv8)...

monogodb server for aarch64 (armv8) [cortex A53, cortex A55] - 123swk123/mongodb-armv8-a