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We have planned a ceph upgrade to reef 18.2.7, and it says that Client Kernel drivers older than in Kernel 5.4 are not supported.
There is 1 RHEL 8 machine with Kernel 4.18. I tried to mount cephfs anyway, and it really doesn't work.
I get the message: mount: /mnt: wrong fs type, bad option, bad superblock on 192.168.22.101,192.168.22.100,192.168.22.102:/backup, missing codepage or helper program, or other error.

So, the only option except upgrade to RHEL 9 (this machine is not in my dpt. it is some Bacula backup machine), is to use ceph-fuse. However, my colleague wasn't able to install it either with repo rhceph-5-tools-for-rhel-8-x86_64-rpms or with repo 6-tools-for-rhel-8-x86_64-rpms. Actually, this is described here: https://docs.redhat.com/en/documentation/red_hat_ceph_storage/8/html-single/file_system_guide/index#mounting-the-ceph-file-system-as-a-fuse-client_fs, but it seems that this repo doesn't exist.
I tried with ceph-fuse rpm downloaded from https://download.ceph.com/, but there are so many missing dependencies, that this is not feasible.

Does anyone know a method to install ceph-fuse on RHEL 8?

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I see the ceph-fuse package in the rhceph-6-tools-for-rhel-8-x86_64-rpms repository.

If that works for you, I’ll see about getting the docs updated.

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  • Thanks for the info. I don't administrate this machine, so I wait for the feedback from colleagues. I will let you know if that works. Commented Jul 21 at 9:46
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    It works. It is a correct repo. Commented Jul 24 at 12:55

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