#!/bin/sh # This script verifies that the postgresql data directory has been correctly # initialized. We do not want to automatically initdb it, because that has # a risk of catastrophic failure (ie, overwriting a valuable database) in # corner cases, such as a remotely mounted database on a volume that's a # bit slow to mount. But we can at least emit a message advising newbies # what to do. PGDATA="$1" if [ -z "$PGDATA" ] then echo "Usage: $0 database-path" exit 1 fi # PGVERSION is the full package version, e.g., 9.1.2 # Note: the specfile inserts the correct value during package build PGVERSION=xxxx # PGMAJORVERSION is major version, e.g., 9.1 (this should match PG_VERSION) PGMAJORVERSION=`echo "$PGVERSION" | sed 's/^\([0-9]*\.[0-9]*\).*$/\1/'` # PREVMAJORVERSION is the previous major version, e.g., 8.4, for upgrades # Note: the specfile inserts the correct value during package build PREVMAJORVERSION=xxxx # PGDOCDIR is the directory containing the package's documentation # Note: the specfile inserts the correct value during package build PGDOCDIR=xxxx # Check for the PGDATA structure if [ -f "$PGDATA/PG_VERSION" ] && [ -d "$PGDATA/base" ] then # Check version of existing PGDATA if [ x`cat "$PGDATA/PG_VERSION"` = x"$PGMAJORVERSION" ] then : A-OK elif [ x`cat "$PGDATA/PG_VERSION"` = x"$PREVMAJORVERSION" ] then echo $"An old version of the database format was found." echo $"Use \"postgresql-setup upgrade\" to upgrade to version $PGMAJORVERSION." echo $"See $PGDOCDIR/README.rpm-dist for more information." exit 1 else echo $"An old version of the database format was found." echo $"You need to dump and reload before using PostgreSQL $PGMAJORVERSION." echo $"See $PGDOCDIR/README.rpm-dist for more information." exit 1 fi else # No existing PGDATA! Warn the user to initdb it. echo $"\"$PGDATA\" is missing or empty." echo $"Use \"postgresql-setup initdb\" to initialize the database cluster." echo $"See $PGDOCDIR/README.rpm-dist for more information." exit 1 fi exit 0