Ralf, Thank you for the input it definitely helps! -----Original Message----- From: Ralf S. Engelschall [mailto:rse+rpm-list@xxxxxxxxxxxxxxx] Sent: Friday, November 14, 2003 2:46 PM To: rpm-list@xxxxxxxxxx Subject: Re: RPM Database on NFS Mount On Fri, Nov 14, 2003, Jeff Johnson wrote: > >I have been having trouble creating a rpm database as a non-root user on an > >nfs mount. Is this possible? > > > >I am running RH v7.2 (Kernel: 2.4.9-e.25). > > > >Here's an example: > > > >[test@server test]$ rpm --initdb --dbpath /test/local.linux.200311/rpmdb > >error: cannot open Packages index using db3 - No such file or directory (2) > > > >If I run this same command to a local directory (/var/tmp/rpmdb) it work's > >successfully. Any suggestions? > > > >Additionally if I run the same command on a Linux server running RH 9.0 > >(Kernel: 2.4.20-8) to a nfs mount running the same OS ver it works.. > > > >Can there be problems with the rpm package manager in RH 7.2 > >(rpm-4.0.4-7x.20) vs. RH 9.0 (rpm-4.2-0.69)? > > You can't access an rpmdb through NFS, see details at www.sleepycat.com. Well, in default mode (no DB_PRIVATE) you can drive RPM 4.2.1 with an RPM DB on NFS if at least your NFS client _and_ server run the NFS locking service (rpc.lockd) and RPM's Berkeley-DB is forced to use the fcntl(2) based mutex (as OpenPKG correctly does). I tried this multiple times with different NFS servers and it works as long as the NFS locking service is existing on both sides and both sides do not have a broken or weak implementation. For instance, a Solaris client and a NetApp server work fine. Same for a FreeBSD 5.1-CURRENT client and server. For Linux I cannot remember whether it worked, but at least as an NFS client it should work. Alternatively, you can also run the RPM DB in DB_PRIVATE mode on NFS. For instance, I know that some OpenPKG users run OpenPKG instances in fully non-privileged mode in their home directories staying on NFS servers. There the DB_PRIVATE mode is acceptable and allows them to drive RPM on NFS even if no reasonable NFS locking service exists. But all this obviously requires some explicit adjustments to RPM (the fcntl(2) mutex and/or the DB_PRIVATE enforcement) and hence it is correct that a plain RPM cannot be used on NFS in general. But if someone insists on doing it (or has no alternative ;-) it can be achieved... Ralf S. Engelschall rse@xxxxxxxxxxxxxxx www.engelschall.com _______________________________________________ Rpm-list mailing list Rpm-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/rpm-list _______________________________________________ Rpm-list mailing list Rpm-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/rpm-list
