I had faced some upgrade issues and please find the issue and the resolution to the fixes.
Resolution: Add to the LD_LIBRARY_PATH the Informatica library path.
2. The backup file
C:\Informatica\PowerCenter8.6.1\server\infa_shared\Backup\Oracle_BI_DW_Base.rep’s code page (UTF-8 encoding of Unicode) is not one-way compatible to repository Oracle_BI_DW_Base’s code page (MS Windows Latin 1 (ANSI), superset of Latin1).
Unable to restore Repository.
Reason: The code page set up in the Linux box is Unicode while our database where the repository content is present is in MS Windows Latin 1.
Resolution : Please set the LANG_ALL and LANG=C in the Environmental Variables location and restart the box or source the profile and this issue will be resolved.
Note: Please refer the link below to set the Language Variable
Note: Please refer the link below to set the host name in the Informatica Schema