@Ravi Saive

R is running properly now :-)

I went through your steps. They all gave back: “Nothing to do”.
So I guess the quite big number of system updates that occurred during the last few days rather did the thing.

Nevertheless, I really appreciate your help.

@Gosta,

It looks like the issue is with the version of libgfortran required by flexiblas. Since compat-gcc-8-gfortran isn’t available in your current repository, you can try the following steps to resolve the issue:

Install the correct version of libgfortran:

sudo dnf install gcc-gfortran

Next, ensure that the correct version of flexiblas is installed:

sudo dnf install flexiblas

Make sure that your system is up-to-date and has all the necessary dependencies:

sudo dnf update
sudo dnf install libgfortran

Once you’ve done this, try running R again.

Hopefully, this resolves the error. Let me know how it goes!

@Ravi Saive

Thank you so much for your help!

I went through it step by step, but R still isn’t working.

I think the main issue now is with step 3, the second line: sudo dnf install compat-gcc-8-gfortran.

It gives the following error:

No match for argument: compat-gcc-8-gfortran Error: Unable to find a match: compat-gcc-8-gfortran

No error messages occurred with any of the other steps, but R still aborts with the message:

flexiblas dlopen: /lib64/libgfortran.so.5: version 'GFORTRAN_8' not found (required by /usr/lib64/flexiblas//libflexiblas_netlib.so) flexiblas: Failed to load the BLAS fallback library. Abort! Aborted (core dumped)

@Gosta,

The error message you’re seeing, specifically GFORTRAN_8 not found, indicates that the installed version of libgfortran does not meet the requirements for FlexiBLAS, which is likely a dependency for R. FlexiBLAS is trying to use a version of libgfortran that isn’t installed on your AlmaLinux 9 system.

Here’s a step-by-step approach to troubleshoot and resolve this issue:

1. First, make sure all your system packages are up to date. Sometimes updating can solve compatibility issues.

sudo dnf update -y

2. Next, you might need to install the GCC version that includes the correct libgfortran library.

sudo dnf install gcc-gfortran

3. Download and install a compatible libgfortran version.

sudo dnf install epel-release
sudo dnf install compat-gcc-8-gfortran

4. If you continue to experience issues with FlexiBLAS, you might want to configure it to use a different BLAS library that doesn’t have the same version dependency.

sudo update-alternatives --config libblas.so.3
sudo update-alternatives --config liblapack.so.3

5. After completing the above steps, try running R again to see if the error is resolved:

R

6. If issues persist, you might consider reinstalling FlexiBLAS or R, as an incorrect installation can sometimes cause these issues.

sudo dnf reinstall flexiblas
sudo dnf reinstall R

After completing these steps, R should start without the FlexiBLAS error. Let me know if you run into further issues!

flexiblas dlopen: /lib64/libgfortran.so.5: version `GFORTRAN_8' not found (required by /usr/lib64/flexiblas/libflexiblas_netlib.so)
flexiblas: Failed to load the BLAS fallback library. Aborted!

System Information:

5.14.0-427.42.1.el9_4.x86_64 #1 SMP PREEMPT_DYNAMIC Fri Nov 1 14:58:02 EDT 2024 x86_64 x86_64 x86_64 GNU/Linux