BPXPRMxx SYNTAX Error

If you see following message at IPL

BPXI012I ERRORS IN PARMLIB MEMBERS=BPXPRMXX, REFER TO HARDCOPY LOG.
BPXI029I AN OMVS= PARMLIB MEMBER WAS NOT FOUND OR IS IN ERROR.
*  IEA341A RESPECIFY OMVS PARM OR PRESS ENTER

In this case, you need to check the member really exists and review your member have any error.
To continue to do IPL, you need to reply to message (ex R nn,OMVS=(XX)).
If you want to avoid this error, you should run SYNTAX CHECK after modify BPXPRMxx before reIPL.

SETOMVS SYNTAXCHECK=(XX)

References

https://www.ibm.com/docs/en/zos/2.5.0?topic=sys1parmlib-checking-bpxprmxx-syntax
https://www.ibm.com/docs/en/zos/2.5.0?topic=reference-setomvs-command
https://www.ibm.com/docs/en/zos/2.5.0?topic=sc-syntax-20
https://www.ibm.com/docs/en/zos/2.5.0?topic=messages-bpxi012i
https://www.ibm.com/docs/en/zos/2.5.0?topic=messages-bpxp029i
https://www.ibm.com/docs/en/zos/2.5.0?topic=messages-iea341a