2058551 - SAP ASE ignores restart in single user mode

• During process of downgrade ASE CE from 15.7 to 15.5 it returned an error:

1> sp_downgrade 'downgrade', @toversion='15505',@override=1
2> go
Downgrade from 15.7.0.5 to 15.5.0.5 (command: 'downgrade')
You cannot run sp_downgrade; server must be in single-user mode.
Try restarting the server using the -m option.
(return status = 1)

• ASE CE is unable to start in single user mode.
• Was added -m in server run file but still it is not starting in single user mode.

• SAP Adaptive Server Enterprise (ASE) 15.7 EBF 22238 Cluster Edition SP121  
• OS AIX 6.1

masterrecover -m, standalone mode , KBA , BC-SYB-ASE-CE , ASE Cluster Edition (Standalone) , Problem