[lustre-discuss] mount not possible: "no server support"

[Benedikt Alexander Braunger]

Hi Lustrers,

I'm currently struggling with a unmountable Lustre filesystem. The 
client only says "no server support", no further logs on client or server.
I first thought this might be related to the usage of fscrypt but I 
already recreated the whole filesystem from scratch and the error still 
persists.
Now I have no more idea what to look for.

Here the full CLI log:

[root at dstorsec01vl]# uname -a
Linux dstorsec01vl 5.14.0-284.11.1.el9_2.x86_64 #1 SMP PREEMPT_DYNAMIC 
Wed Apr 12 10:45:03 EDT 2023 x86_64 x86_64 x86_64 GNU/Linux

[root at dstorsec01vl]# modprobe lnet
[root at dstorsec01vl]# modprobe lustre
[root at dstorsec01vl]# lnetctl ping pstormgs01 at tcp
ping:
     - primary nid: 10.106.104.160 at tcp
       Multi-Rail: False
       peer ni:
         - nid: 10.106.104.160 at tcp

[root at dstorsec01vl]# mount -t lustre pstormgs01 at tcp:sif0 /mnt/
mount.lustre: cannot mount pstormgs01 at tcp:sif0: no server support

[root at dstorsec01vl]# dmesg | tail
[   90.582867] libcfs: loading out-of-tree module taints kernel.
[   90.583149] libcfs: module verification failed: signature and/or 
required key missing - tainting kernel
[   90.586887] LNet: HW NUMA nodes: 1, HW CPU cores: 1, npartitions: 1
[   90.591213] alg: No test for adler32 (adler32-zlib)
[   91.341004] Key type ._llcrypt registered
[   91.341009] Key type .llcrypt registered
[   93.708911] Lustre: Lustre: Build Version: 2.15.3
[   93.789571] LNet: Added LNI 10.106.104.166 at tcp [8/256/0/180]
[   93.789629] LNet: Accept secure, port 988


Any help or ideas appreciated :-)