amdgpu-install --usecase=opencl --opencl=rocr --no-32 --no-dkms --accept-eula

Last night I did get a RX 5700 XT working by rsyncing most a workstation/server to another then restoring original fstab, etc... I'll ask about this in another thread.

I wrote what I mostly use, but when my *BSD & Slackware workstation broke down, I had to use family Devuan one while, and it was much better than using regular Debian, Kubuntu/Neon, Xubuntu/Mint, RedHat, and easier than both Gentoo and Arch/Artix.  Now I'm asking about OpenCL on Devuan 4 which I consider the best OS for my family's PCs.  What I use mostly doesn't get automatic updates or otherwise would be too hard for them to add stuff, but Devuan at least can use KDE's software installer, though we all now use XFCE with KDE programs for a few years.  I guess in a few weeks/months I'll upgrade them to Devuan 5 (I probably had been using development/experimental/testing version if I hadn't just made a typographical error).

what i use is "amdgpu-install" and since few iterations whas also able to get opencl on polaris gpu with the --opencl=legacy. (it is now however deprecated)
but devuan is bit tricky since it is not officially supported, as debian, but i can function (with some tricks).

what is use on newer graphics card that is supported by opencl rocr stack is combination like

afterwards what is needed for opencl (at least on my computer)

sudo usermod -a -G render $LOGNAME

sudo usermod -a -G video $LOGNAME

https://amdgpu-install.readthedocs.io/e … lling.html

for rocm, it seems your graphic cards are not supported aswell, but to be honest i am not seeing trough all those different install routines and graphics stacks.

https://www.phoronix.com/news/AMD-ROCm-7.0.2-Released

https://rocm.docs.amd.com/projects/install-on-linux/en/docs-6.2.4/install/amdgpu-install.html

You didn't even specify what exactly you need ROCm for [...]

As a mainly Slackware GNU/Linux user, for which standard method (if you want support) is install entire OS (and for which OpenCL for AMD is combined as one extra package) I don't bother with what type of OpenCL programs (BOINC.Berkeley.edu , miners) may use; I plan to just install entire OpenCL.  I don't like installing bits & pieces until a non-development OS says you need a 'dev' package (not separated out in development OS) or something fails then you need to find dependencies of dependencies of dependencies to 100th level; I plan to just install entire OpenCL.

after a few years, why isn't there the rocm-all package yet

I don't know maybe because:
- Packaging team is less than 5 people.
- ROCm stack is gigantic, consists of userspace and kernel space drivers both graphic (interop) and compute plus a dozen specific Machine Learning libraries and more.
- ROCm depends on custom LLVM compiler - good luck porting it anywhere by yourself!
- Up until recently ROCm was scattered in 3 different official organizations on Github in 30+ repositories. Now its 1 org, but repo count is the same.
- Up until recently there was no proper hardware CI with GPUs in Debian.
- GPUs cost $$$ and the team basically bought the hardware with their own private money.

You didn't even specify what exactly you need ROCm for and you expect to get useful answers?

At some point AMD in their infinite wisdom decided to change how they package AMDGPU-PRO drivers. All hacks that relied on extracting individual .deb from the official Ubuntu installer package stopped working.