Hi list I'm running into the following problem: Installed 9.2.0.1.0 on an RS/6000 p630 (Proc. model 7248), 64bit AIX 5.2 Patched to 9.2.0.4.0. I can't start any executable like sqlplus / lsnrctl. We haven't created any DBs yet, just the fresh install with an immediately applied patch set. Here's what I get: oracle@paris:/home/oracle>which sqlplus /u01/app/oracle/product/9.2/bin/sqlplus oracle@paris:/home/oracle>sqlplus exec(): 0509-036 Cannot load program sqlplus because of the following errors: 0509-130 Symbol resolution failed for /usr/lib/libc.a[aio_64.o] because: 0509-136 Symbol kaio_rdwr64 (number 0) is not exported from dependent module /unix. 0509-136 Symbol listio64 (number 1) is not exported from dependent module /unix. 0509-136 Symbol acancel64 (number 2) is not exported from dependent module /unix. 0509-136 Symbol iosuspend64 (number 3) is not exported from dependent module /unix. 0509-136 Symbol aio_nwait (number 4) is not exported from dependent module /unix. 0509-150 Dependent module libc.a(aio_64.o) could not be loaded. 0509-026 System error: Cannot run a file that does not have a valid format. 0509-192 Examine .loader section symbols with the 'dump -Tv' command. oracle@paris:/home/oracle> Dump gives me the following output (e.g. for listio64): oracle@paris:/home/oracle>dump -X64 -oTv /usr/lib/libc.a | grep listio64 [3] 0x00000000 undef IMP DS EXTref /unix _posix_listio64 [11] 0x000000a8 .data EXP DS SECdef [noIMid] _posix_lio_listio64 [1] 0x00000000 undef IMP DS EXTref /unix listio64 [8] 0x00000088 .data EXP DS SECdef [noIMid] lio_listio64 oracle@paris:/home/oracle> So, the symbol is actually being exported. What might be the problem? Does async i/o have to be activated on the RS/6000? PS: I'm totally new to AIX, so the question might be kind of dumb;). Any ideas? Stefan ---------------------------------------------------------------- Please see the official ORACLE-L FAQ: http://www.orafaq.com ---------------------------------------------------------------- To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx put 'unsubscribe' in the subject line. -- Archives are at //www.freelists.org/archives/oracle-l/ FAQ is at //www.freelists.org/help/fom-serve/cache/1.html -----------------------------------------------------------------