SQL> startup
ORA-00439: feature not enabled: Server Flash Cache
ORA-01078: failure in processing system parameters

TEST: ***use "strace" commnad to trace system & signals***
$ strace -o /tmp/file01.txt -f sqlplus '/ as sysdba' <<EOF
startup
EOF

Find 2 points:
1. about /etc/*-release files.

3884  open("/etc/enterprise-release", O_RDONLY) = 8
3884  read(8, "Enterprise Linux Enterprise Linu"..., 255) = 64


2. about "rpm" cammand
32278 execve("/bin/rpm", ["/bin/rpm", "-qi", "--info", "enterprise-release"], [/* 25 vars */] <unfinished ...>
Next, it greps for “66ced3de1e5e0159” from the following output…
 
try to check on Enterprise Linux.

$ rpm -qi --info "enterprise-release"

Name        : enterprise-release           Relocations: (not relocatable)
Version     : 5                                 Vendor: Oracle USA
Release     : 0.0.17                        Build Date: Wed 21 Jan 2009 06:00:33 PM PST
Install Date: Mon 11 May 2009 11:19:45 AM PDT      Build Host: ca-build10.us.oracle.com
Group       : System Environment/Base       Source RPM: enterprise-release-5-0.0.17.src.rpm
Size        : 59030                            License: GPL
Signature   : DSA/SHA1, Wed 21 Jan 2009 06:56:48 PM PST, Key ID 66ced3de1e5e0159
Summary     : Enterprise Linux release file
Description :
System release and information files
Name        : enterprise-release           Relocations: (not relocatable)
Version     : 5                                 Vendor: Oracle USA
Release     : 0.0.17                        Build Date: Wed 21 Jan 2009 06:00:33 PM PST
Install Date: Mon 11 May 2009 11:19:45 AM PDT      Build Host: ca-build10.us.oracle.com
Group       : System Environment/Base       Source RPM: enterprise-release-5-0.0.17.src.rpm
Size        : 59030                            License: GPL
Signature   : DSA/SHA1, Wed 21 Jan 2009 06:56:48 PM PST, Key ID 66ced3de1e5e0159
Summary     : Enterprise Linux release file
Description :
System release and information files


Fixed:
1. FAKE *-release file (don't forgot backup before)
- Modify /etc/redhat-release + /etc/enterprise-release files.
$ cat /etc/redhat-release
Enterprise Linux Enterprise Linux Server release 5.3 (Carthage)

$ cat /etc/enterprise-release
Enterprise Linux Enterprise Linux Server release 5.3 (Carthage)

2. FAKE rpm to check "enterprise-release" package.
- Modify /bin/rpm
#  mv /bin/rpm /bin/rpm.bin

# vi /bin/rpm
#!/bin/sh
if [ "$3" = "enterprise-release" ]
then
     echo 66ced3de1e5e0159
else
      exec /bin/rpm.bin "$*"
fi

# chmod 755 /bin/rpm

Try... Again -> startup database.

SQL> startup