Any way to using f2fs inside rocky9? I have a disk is f2fs, which works in centos7. However, after swich to rocky9, f2fs not surported any more mount: /mnt/nvme1: unknown filesystem type 'f2fs'. I have tried to rpmbuild the ‘f2fs-tools’ from git clone https://src.fedoraproject.org/rpms/f2fs-tool…

The support for filesystems, “drivers”, is in kernel – most often as module. The f2fs-tools are mere userland tools that would talk to the kernel. The kernel config for CentOS 7 did not set CONFIG_F2FS_FS. Therefore, CentOS 7 did not support f2fs “out of the box” either. You must have procured f2fs…

Yes, just noticed that my centos7 uses kernel-ml. Looks like I can only use elrepo’s kernel in el9. And just tested in EL10, the kernel is the same as EL9, which is not suport f2fs.

It would be nice if there was a way to manually add kernel modules into the official kernel. ( Just like adding a new NIC driver. )

ELRepo, CentOS Kmods SIG, Rocky SIG/kernel, etc seem to be doing just that: build kernel modules and package them for easy ‘dnf install’. The ‘dkms’ and ‘akmod’ tools seem able to rebuild, if needed, modules from “sources” when new kernel boots (or installs). There clearly is a way. How does on…

[image] jlehtone: How does one build one kernel module? I have no idea. The last entry in this forum post has an example https://forums.rockylinux.org/t/building-v4l-rpm-for-tbs-hardware/18014/10 But even then, there’s still the issue of how to sign it.

I found a way to build and add mod, that is, dnf install kernel-devel mkdir /root/mybuild cd /root/mybuild # download src dnf download --source kernel rpm2cpio kernel-5.14.0-503.40.1.el9_5.src.rpm | cpio -idmv tar -xvf linux-5.14.0-503.40.1.el9_5.tar.xz cd linux-5.14.0-503.40.1.el9_5 # make th…

[image] berlin: Looks like I can only use elrepo’s kernel in el9. I Have tested to install the elrepo kernel-lt or kernel-ml. Unfortunately, however, none of them support f2fs. looks like I’ll have to build the mod, or kernel.

[image] berlin: I Have tested to install the elrepo kernel-lt or kernel-ml. Unfortunately, however, none of them support f2fs. Really? The dnf --repo=elrepo-kernel provides */f2fs.ko\* claims that both of them have f2fs.ko.xz Would it not load, was the support missing even with that module l…

It’s definitely there: root@zfs:~# modprobe f2fs root@zfs:~# lsmod | grep f2fs f2fs 823296 0 lz4hc_compress 24576 1 f2fs lz4_compress 36864 1 f2fs zstd_compress 299008 1 f2fs root@zfs:~# cat /etc/rocky-release Rocky Linux release 9.5 (Blue Onyx) roo…

How to using F2FS in EL9?

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berlin May 2, 2025, 2:06pm 11

I was not run the modprobe， it works now for elrepo-kernel.

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How to using F2FS in EL9?

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