root@mail:/usr/lib/postgresql/8.2/bin$ sudo ./pg_controldata /home/postgres/data
WARNING: Calculated CRC checksum does not match value stored in file.
Either the file is corrupt, or it has a different layout than this program
is expecting.  The results below are untrustworthy.

pg_control version number:            72
Catalog version number:               200310211
Database system identifier:           10426906430121548809
Database cluster state:               shut down
pg_control last modified:             Mon 11 Feb 2008 22:14:51 EST
Current log file ID:                  36
Next log file segment:                114
Latest checkpoint location:           24/71AA6FA4
Prior checkpoint location:            24/71AA6F64
Latest checkpoint's REDO location:    24/71AA6FA4
Latest checkpoint's UNDO location:    0/0
Latest checkpoint's TimeLineID:       295
Latest checkpoint's NextXID:          551530729/1078375
Latest checkpoint's NextOID:          1202728489
Latest checkpoint's NextMultiXactId:  8192
Latest checkpoint's NextMultiOffset:  131072
Time of latest checkpoint:            Thu 01 Jan 1970 10:01:04 EST
Minimum recovery ending location:     20/1
Maximum data alignment:               128
Database block size:                  0
Blocks per segment of large relation: 0
WAL block size:                       0
Bytes per WAL segment:                0
Maximum length of identifiers:        0
Maximum columns in an index:          0
Date/time type storage:               floating-point numbers
Maximum length of locale name:        0
LC_COLLATE:                           
LC_CTYPE: