Обсуждение: Upgraded from Leopard to Snow Leopard - PostgreSQL won't start anymore
Hi, some weeks or months ago I upgraded my Mac from Leopard to Snow Leopard. Because I needed to work a long time remote I didn'tuse my local dev system and found it broken now. First of all I've got the following error message in my log: FATAL: could not create shared memory segment: Invalid argument DETAIL: Failed system call was shmget(key=5432001, size=4374528, 03600). HINT: [...] After setting the value of shared_buffers from 2400kB to some lower (eg. 2000kB), the messages goes away but the followingappears: FATAL: incorrect checksum in control file I guess this is because I upgraded the OS without dumping the database before. And now I'm stuck. I found many pages thatsuggests to make a pg_dumpall with the old database and the new pg_dumpall version. But I (really) don't have the oldsystem anymore and I guess it's impossible for me to get it from somewhere. What can I do? How can I dump the data fromthe 32bit database? Does someone has built a postgres binary for this issue? Thanks in advance, Matthias -- rainboxx Software Engineering Matthias Dietrich, Freelancer rainboxx | Mobil: +49 (0) 151 / 50 60 78 64 Königsallee 43 | 71638 Ludwigsburg | WWW : http://www.rainboxx.de XING: https://www.xing.com/profile/Matthias_Dietrich18 GULP: http://www.gulp.de/profil/rainboxx.html
Matthias Dietrich wrote:
You can build one yourself following the "Reverting to 32-bit Binaries" instructions at http://devoh.com/posts/2009/08/postgresql-snow-leopard (which follow up the build from source instructions at http://devoh.com/posts/2008/10/installing-postgresql-on-mac-os-x-10.5-leopard )
You probably don't want to overwrite the system PostgreSQL just yet though. You can relocate where it compiles into with:
Then run make/make install, point PGDATA toward your existing database, and start the server.
How can I dump the data from the 32bit database? Does someone has built a postgres binary for this issue?
You can build one yourself following the "Reverting to 32-bit Binaries" instructions at http://devoh.com/posts/2009/08/postgresql-snow-leopard (which follow up the build from source instructions at http://devoh.com/posts/2008/10/installing-postgresql-on-mac-os-x-10.5-leopard )
You probably don't want to overwrite the system PostgreSQL just yet though. You can relocate where it compiles into with:
CFLAGS="-arch i386" ./configure --enable-thread-safety --with-bonjour --prefix=<install location>
Then run make/make install, point PGDATA toward your existing database, and start the server.
-- Greg Smith 2ndQuadrant Baltimore, MD PostgreSQL Training, Services and Support greg@2ndQuadrant.com www.2ndQuadrant.com