Power outage borked things (8.1.10)...

Starting up postgres, I get the log contents below.

Is it really as bad as it suggests, namely that I
need to recover from backup?

The pg_clog directory has the following:
# ls -al pg_clog/
total 1216
drwx------   2 postgres  wheel     512 Jan 17 09:09 ./
drwx------  10 postgres  wheel     512 Feb 20 00:44 ../
-rw-------   1 postgres  wheel  253952 Dec  8 11:09 0000
-rw-------   1 postgres  wheel  253952 Dec 19 17:29 0001
-rw-------   1 postgres  wheel  253952 Jan  2 17:49 0002
-rw-------   1 postgres  wheel  253952 Jan 16 10:19 0003
-rw-------   1 postgres  wheel   90112 Jan 22 15:34 0004

The error seems to suggest that it is at EOF...

Darren

LOG:  startup process (PID 765) was terminated by signal 6
LOG:  aborting startup due to startup process failure
LOG:  database system was interrupted while in recovery at 2008-02-20
00:44:08 PST
HINT:  This probably means that some data is corrupted and you will have
to use the last backup for recovery.
LOG:  checkpoint record is at 2/64507F8C
LOG:  redo record is at 2/64507F8C; undo record is at 0/0; shutdown FALSE
LOG:  next transaction ID: 4570963; next OID: 24576
LOG:  next MultiXactId: 1; next MultiXactOffset: 0
LOG:  database system was not properly shut down; automatic recovery in
progress
LOG:  redo starts at 2/64507FD0
PANIC:  could not access status of transaction 4570965
DETAIL:  could not read from file "pg_clog/0004" at offset 90112:
Undefined error: 0
LOG:  startup process (PID 306) was terminated by signal 6
LOG:  aborting startup due to startup process failure