Morning, 

AlmaLinux 8.7, kernel 4.18.0-425.19.2.el8_7.x86_64 

Just installed kmod-drbd9x-9.1.14-1.el9_1.elrepo.x86_64.rpm on my secondary and 
after a reboot was greeted with a 

drbdadm status 
r0 role:Secondary 
disk:Diskless 

Looking at /proc/drbd I noticed it still had the previous version listed 

cat /proc/drbd 
version: 9.1.13 (api:2/proto:86-121) 
GIT-hash: 834511a4957bba1a6aa4245a99ceebca5c42a4f2 build by mockbuild@, 
2023-01-30 18:33:50 
Transports (api:18): 

Rebooting again into an earlier kernel, 4.18.0-425.13.1.el8_7.x86_64 and now 
back and working with /proc/drbd showing the correct version. 

cat /proc/drbd 
version: 9.1.14 (api:2/proto:86-121) 
GIT-hash: df55dfb7a93484b7d7eb0c4deac62d887cfcbf67 build by mockbuild@, 
2023-04-08 19:54:28 
Transports (api:18): tcp (9.1.14) 

Did I miss a step on the upgrade, should I have brought drbd down first (it was 
set to secondary) or intitally booted into an earlier kernel first before the 
upgrade? 

Best Regards, 
Nigel 



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