I installed OpenBSD(3.5 current) in a 20Gb slave disk through ftp(i have a windows system in the master disk) and the instalation gave me no problems, but as soon as i rebooted i noticied the system didn't mount any subpartitions(only the / was mounted).
I sucessfully mounted by hand the rest of the supartitions and the files were all there, but i don't understand why this happens.

I would appreciate any help. Thanks.

What does your /etc/fstab look like? It almost sounds like you're trying to mount the partitions in the wrong order, but that would be impossible to do if you just followed the installer...

Here's my fstab(sorry for the delay):
/dev/wd1a / ffs rw 1 1
/dev/wd1f /etc ffs rw,nodev,nosuid 1 2
/dev/wd1g /usr ffs rw,nodev 1 2
/dev/wd1h /home ffs rw,nodev,nosuid 1 2
/dev/wd1d /tmp ffs rw,nodev,nosuid 1 2
/dev/wd1e /var ffs rw,nodev,nosuid 1 2

I didn't make any changes. I just rebooted as requested by the installer.

PS:I tried to install a second time just to check.

Well it looks correct to me. I don't have the slightest idea why that would happen. Perhaps try upgrading to a recent snapshot and see if the problem disappears? Also, you could always put something in /etc/rc.local to check each partition and see if it's mounted. If it isn't, then mount it. That would be a terrible hack, but it would get you around have to manually mount everything.

/dev/wd1f /etc ffs rw,nodev,nosuid 1 2

Is this your fstab before you mounted /etc or after?

Why do you have a mounted /etc (this is usually not a good idea as the whole system will fail is wonderful ways if that partition is dirty and you don't have a good /etc on the root partition)?

I have a feeling this has something to do with your problem.

Are both /etc 's the same and even if they are... the system might be confused because the file it was using suddenly no longer exists after it mounts wd1f (it exists and doesn't at the same time in a funky unix limbo).

Doh! That is an excellent point. /etc really should be left on / since that is the only partition initially mounted during boot. The init process is probably interrupted when it's open file handles go poof.

Yeah, that is the most likely problem...shame on me.
I'll try again with that on mind and i'll say if it worked. Thanks a lot.

By the way, if you've made all your changes on the non-root partition version of /etc, you'll want to copy those over somewhere so you can put them in the /etc on the root partition (which you can't do with /etc mounted on wd1f). Either mount /etc on wd1f and copy everything to some place like /scratch or /home/user/etctmp, or unmount wd1f and remount it some place like /mnt/etctmp, then copy the appropriate configs to /etc on the root partition (wd1a).

I'd recommend doing a diff of each file before copying into the real /etc to make sure you don't nuke anything important.

Ok, it worked fine. Thanks for the help.

Now i can continue the search for more problem...