On Fri, Jun 08, 2007 at 03:30:47PM +0200, Benedict Verheyen wrote: > Felipe Sateler schreef: > > >>I'm currenly looking at these options: > >>* COW funtionality > > > >That wouldn't work either, since COW usually is done on mounted filesystems > >too. > > I could make a file and then mount that as extra partition and specify > in the fstab file that the /home dir corresponds to that ubd device. > Should work. > > > Also, COW would not make the changes made in one UML instance > > available to the others. > Yup that would be a big problem. > > > > >>* mount -t smbfs and thus having to run samba on the UML that has the > >>home directories > > > >That is a possibility. NFS is another one. > > > >>* hostfs > > > >This seems like the Right Way (according to google). There is even a > >tutorial on how to do this on UML's SourceForge page: > >http://user-mode-linux.sourceforge.net/hostfs.html > > If i want to use hostfs, i need to leave the homedirectories on the > server. Also note that hostfs only works properly for the user root (i.e. root *inside* the UML). All file operations will be performed on the host machine under the user that runs the UML. > But i can't use hostfs if i'm setting up the home directories inside > another UML. Correct > Then i'm stuck with either samba or nfs. They should work. Or perhaps a clustered file system that allows the same disk to be mounted read-write simultaneously by multiple hosts. Such a disk could be located on the underlying host (=more ubd devices on the uml linux command line) or remotely using network block devices. I *think* that the oracle clustered filesystem would do the trick, although it is more geared towards holding oracle databases. One problem though: The kernel in the user-mode-linux package has not got ocfs2 enabled, so you'll need to recompile the package, but it *should* work... Hope this helps -- Karl E. Jorgensen email@example.com http://www.jorgensen.org.uk/ firstname.lastname@example.org http://karl.jorgensen.com ==== Today's fortune: History is curious stuff You'd think by now we had enough Yet the fact remains I fear They make more of it every year.
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