V100 install 550.54.15

For the past two days, I have been trying to install cuda-drivers 550.54.15 on a V100 node. using

apt-get install cuda-drivers-550=550.54.15 results into a mix of dependencies version, some calling 550.90.x.

I tried

`

> apt-get install -y cuda-drivers-550=550.54.15-1 nvidia-driver-550=550.54.15-0ubuntu1 libnvidia-fbc1-550=550.54.15-0ubuntu1 xserver-xorg-video-nvidia-550=550.54.15-0ubuntu1 libnvidia-cfg1-550=550.54.15-0ubuntu1 nvidia-utils-550=550.54.15-0ubuntu1 libnvidia-encode-550=550.54.15-0ubuntu1 libnvidia-decode-550=550.54.15-0ubuntu1 nvidia-compute-utils-550=550.54.15-0ubuntu1 libnvidia-extra-550=550.54.15-0ubuntu1 nvidia-dkms-550=550.54.15-0ubuntu1 nvidia-kernel-common-550=550.54.15-0ubuntu1 nvidia-kernel-source-550=550.54.15-0ubuntu1 libnvidia-gl-550=550.54.15-0ubuntu1 libnvidia-compute-550=550.54.15-0ubuntu1 libnvidia-common-550=550.54.15-0ubuntu1 xserver-xorg-core nvidia-firmware-550-550.54.15=550.54.15-0ubuntu1

`

but even if it appears that the installation succeeded after reboot

nvidia-smi
NVIDIA-SMI has failed because it couldn't communicate with the NVIDIA driver. Make sure that the latest NVIDIA driver is installed and running.
lsmod | grep nvidia empty
dpkg -l | grep nvidia
ii  libnvidia-cfg1-550:amd64                                    550.54.15-0ubuntu1                      amd64        NVIDIA binary OpenGL/GLX configuration library
ii  libnvidia-common-550                                        550.54.15-0ubuntu1                      all          Shared files used by the NVIDIA libraries
ii  libnvidia-compute-550:amd64                                 550.54.15-0ubuntu1                      amd64        NVIDIA libcompute package
ii  libnvidia-decode-550:amd64                                  550.54.15-0ubuntu1                      amd64        NVIDIA Video Decoding runtime libraries
ii  libnvidia-encode-550:amd64                                  550.54.15-0ubuntu1                      amd64        NVENC Video Encoding runtime library
ii  libnvidia-extra-550:amd64                                   550.54.15-0ubuntu1                      amd64        Extra libraries for the NVIDIA driver
ii  libnvidia-fbc1-550:amd64                                    550.54.15-0ubuntu1                      amd64        NVIDIA OpenGL-based Framebuffer Capture runtime library
ii  libnvidia-gl-550:amd64                                      550.54.15-0ubuntu1                      amd64        NVIDIA OpenGL/GLX/EGL/GLES GLVND libraries and Vulkan ICD
ii  nvidia-compute-utils-550                                    550.54.15-0ubuntu1                      amd64        NVIDIA compute utilities
ii  nvidia-dkms-550                                             550.54.15-0ubuntu1                      amd64        NVIDIA DKMS package
ii  nvidia-driver-550                                           550.54.15-0ubuntu1                      amd64        NVIDIA driver metapackage
ii  nvidia-firmware-550-550.54.15                               550.54.15-0ubuntu1                      amd64        Firmware files used by the kernel module
ii  nvidia-kernel-common-550                                    550.54.15-0ubuntu1                      amd64        Shared files used with the kernel module
ii  nvidia-kernel-source-550                                    550.54.15-0ubuntu1                      amd64        NVIDIA kernel source package
ii  nvidia-utils-550                                            550.54.15-0ubuntu1                      amd64        NVIDIA driver support binaries
ii  xserver-xorg-video-nvidia-550                               550.54.15-0ubuntu1                      amd64        NVIDIA binary Xorg driver
dkms status
lustre-client-modules/2.15.3, 5.15.0-112-generic, x86_64: installed
lustre-client-modules/2.15.3, 5.15.0-113-generic, x86_64: installed
nvidia/550.54.15, 5.15.0-113-generic, x86_64: installed
grep -R nvidia /etc/modprobe.d/
/etc/modprobe.d/blacklist-framebuffer.conf:blacklist nvidiafb
/etc/modprobe.d/nvidia-graphics-drivers-kms.conf:# This file was generated by nvidia-driver-550
/etc/modprobe.d/nvidia-graphics-drivers-kms.conf:options nvidia-drm modeset=1
sudo modprobe -vv nvidia
modprobe: INFO: ../libkmod/libkmod.c:367 kmod_set_log_fn() custom logging function 0x557105435830 registered
insmod /lib/modules/5.15.0-113-generic/updates/dkms/nvidia.ko 
modprobe: INFO: ../libkmod/libkmod-module.c:892 kmod_module_insert_module() Failed to insert module '/lib/modules/5.15.0-113-generic/updates/dkms/nvidia.ko': Exec format error
modprobe: ERROR: could not insert 'nvidia': Exec format error
modprobe: INFO: ../libkmod/libkmod.c:334 kmod_unref() context 0x5571072ba460 released
dmesg | grep nvidia
[    8.779041] nvidia: loading out-of-tree module taints kernel.
[    8.779549] nvidia: module license 'NVIDIA' taints kernel.
[    8.811504] nvidia: module verification failed: signature and/or required key missing - tainting kernel
[   14.485991] audit: type=1400 audit(1721046506.216:3): apparmor="STATUS" operation="profile_load" profile="unconfined" name="nvidia_modprobe" pid=5625 comm="apparmor_parser"
[   14.485996] audit: type=1400 audit(1721046506.216:4): apparmor="STATUS" operation="profile_load" profile="unconfined" name="nvidia_modprobe//kmod" pid=5625 comm="apparmor_parser"
root@farm22-gpu0102:/nfs/users/nfs_f/fg12# 

How can I solve this issue?

just after i posted a colleague sent me to another post, solution

sudo rm -rf /var/lib/dkms/rts_pstor/
sudo rm -rf /usr/src/rts_pstor-1.11
sudo apt install --reinstall linux-headers-$(uname -r)
sudo dkms remove nvidia/550.54.15 --all
sudo dkms install nvidia/550.54.15

REBOOT
nvidia-smi