Windows VMWare guests can easily be resized live. For linux guests I've used LVM (add disk, partprobe, add disk to vg, lvextend, resize2fs). This works.
I've just stumbled across the sketch of better approaches. The first seems eminently doable, use LVM physical volume without partitions. This allows extending with one extra volume (and significanly simpler and less work). It'd be even better if I could whittle it down to s single VMDK
The more tantilizing option though is hinted at in a couple of posts scattered about the internet (including the unix cousin of this sight) running off of a partitionless VMDK. This seems very clean, but I'm running into a major roadblock for testing (and implementation) installing to a partionless system.
We are a SLES/OES shop, this may well be easy with another distro, but I cannot get the installer to skip partitioning. I've tried presenting it with preformatted whole disk and various permutations of the SLES installation disk formatting process.
FWIW, here are some postings...
I could manually copy/move things about. Does anyone have any suggestions?