Failed to load module [veeamsnap] on Oracle Linux 8 with UEK R7 kernel
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This article is specifically regarding Oracle Linux 8 with UEK R7 kernel (5.15+):
[root@localhost ~]# cat /etc/os-release PRETTY_NAME="Oracle Linux Server 8.9"
[root@localhost ~]# uname -r 5.15.0-200.131.27.1.el8uek.x86_64
For all other situations involving the error "Failed to load module [veeamsnap]", please refer to KB2260.
Challenge
Veeam Agent for Linux backup job fails with "Failed to load module [veeamsnap] error":
[error] Failed to load module [veeamsnap] with parameters [zerosnapdata=1 debuglogging=0 snapstore_block_size_pow=14 change_tracking_block_size_pow=18 logdir=/var/lo... [error] Processing finished with errors
Deployment of Veeam Agent for Linux from the Veeam Backup & Replication console fails with the error:
Failed to install Veeam Agent for Linux: Failed to install agent: non-matching package versions
Cause
UEK R7 is built with GCC 11, while Oracle Linux 8 ships GCC 8.5. This causes veeamsnap kernel module build failure because DKMS uses GCC 8.5:
[root@localhost ~]# cat /var/lib/dkms/veeamsnap/6.1.0.1498/build/make.log DKMS make.log for veeamsnap-6.1.0.1498 for kernel 5.15.0-200.131.27.1.el8uek.x86_64 (x86_64) Wed Dec 6 12:03:39 EST 2023 make: Entering directory '/usr/src/kernels/5.15.0-200.131.27.1.el8uek.x86_64' warning: the compiler differs from the one used to build the kernel The kernel was built by: gcc (GCC) 11.2.1 20220127 (Red Hat 11.2.1-9.2.0.1) You are using: gcc (GCC) 8.5.0 20210514 (Red Hat 8.5.0-20.0.1) CC [M] /var/lib/dkms/veeamsnap/6.1.0.1498/build/log.o CC [M] /var/lib/dkms/veeamsnap/6.1.0.1498/build/mem_alloc.o gcc: error: unrecognized command line option '-ftrivial-auto-var-init=zero' gcc: error: unrecognized command line option '-ftrivial-auto-var-init=zero' gcc: error: unrecognized command line option '-fzero-call-used-regs=used-gpr' make[1]: *** [scripts/Makefile.build:288: /var/lib/dkms/veeamsnap/6.1.0.1498/build/log.o] Error 1 make[1]: *** Waiting for unfinished jobs.... gcc: error: unrecognized command line option '-fzero-call-used-regs=used-gpr' make[1]: *** [scripts/Makefile.build:288: /var/lib/dkms/veeamsnap/6.1.0.1498/build/mem_alloc.o] Error 1 make: *** [Makefile:1986: /var/lib/dkms/veeamsnap/6.1.0.1498/build] Error 2 make: Leaving directory '/usr/src/kernels/5.15.0-200.131.27.1.el8uek.x86_64
Solution
Summary
This article will guide you through rebuilding the veeamsnap module using Software Collection (SCL) for GCC 11. SCL for GCC 11, which is shipped with UEK R7 kernel.
Rebuilding the VeeamSnap Module
- Check the version of Veeam Agent for Linux that is installed using the following command:
Take note of the build number that is installed, it will be referred to in later steps as v.x.y.zzzz.
- Make sure the kernel-uek-devel package matching your running kernel is installed:
Example output:
[root@localhost ~]# rpm -qa | grep kernel-uek-devel-$(uname -r) kernel-uek-devel-5.15.0-200.131.27.1.el8uek.x86_6
- Check dkms status output. veeamsnap/v.x.y.zzzz must have added status:
Example output:
[root@localhost ~]# dkms status veeamsnap/6.1.0.1498: added
- Build veeamsnap/v.x.y.zzzz with dkms using GCC 11 SCL:
Replace v.x.y.zzzz with the installed build number from Step 1.
- Verify that veeamsnap/v.x.y.zzzz has installed status for the kernel you are running:
Example output:
[root@localhost ~]# uname -r 5.15.0-200.131.27.1.el8uek.x86_64
[root@localhost ~]# dkms status veeamsnap/6.1.0.1498, 5.15.0-200.131.27.1.el8uek.x86_64, x86_64: installed
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