Updating large postgresql database with blobs

Hello, <br /><br />I didn't get any response on the GENERAL list so i'm escalating this ....<br /><br />We have several
independentdatabase servers with ~50GB+ databases running postgres 8.0.x. We are planning to upgrade these databases to
postgres8.2.x over the weekend <br /><br />We plan to use the following steps to upgrade each server, <br /><br />1.
Dumpthe 8.0.x database cluster using 8.2.x pg_dumpall<br />% ./pg_dumpall > pgdumpall_backup.sql<br /><br />2.Dump
the8.0.x database  including large objects in  compressed custom format using 8.2.x pg_dump <br /> % ./pg_dump -Fc -b
-Z9dbname > pgdump_lobs_backup<br /><br /><br />Restoring database<br />1. Initialize 8.2.x darabase<br />% initdb
-D/data/pgdata<br /><br />2. Restore template1 database from cluster dump<br />% ./psql -d template1 <
pgdumpall_backup.sql<br /><br />3. Delete database dbname else restoring will give error about existing dbname<br />%
dropdbdbname<br /><br />4. Create fresh dbname<br />% createdb -O dbowner dbname<br /><br />5. Restore database with
lobs<br/>% ./pg_restore -v -Fc -d dbname -e -U dbowner < pgdumpall_lobs_backup <br /><br />Some of the problems we
haveare,<br />1. We are not sure if all of the data will be available after dump/restore with above process<br />2. The
dumpand restore process is very very slow to be complete over the weekend (takes approx 1GB/hr to dump on a dual G5 PPC
2Ghzwith 1GB RAM and RAID 1 disks) <br /><br />What is the fastest way to upgrade postgres for large databases that has
binaryobjects?<br /><br />Thanks for all your help.