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Sami Kujala schrieb:
> Hmm, I implicitly assumed you were using OBSD 3.3, the source of
> your problems _might_ be just that. What if you tried doing your
> livecd system with 3.3 instead of 3.2?

Bad news, but i'll try it ...

> I would recommend as much RAM as possible and pushing the kernel
> option BUFCACHEPERCENT to as big as possible so you would the get
> the biggest benefit of cache as cdrom access is slooooow... But
> this you already knew, I guess.

yes i realised that, i'll try this option

> What do you need /root for? You are not logging into the computer
> as root, are you? Big Boys Say that you should avoid logging in

ok normally i don't login as root, but just for developing this live-cd
i did,
ok i'll change this also

> > first i mount fstab like you (is 'swap /tmp mfs
> > rw,nodev,noexec,nosuid,noatime,-s=262144 0 0' really right? X
> > needs this dir to create several files ...)
> Is there something wrong with it? /tmp is mounted on a memory
> filesystem which is read-write so e.g. X can write into it.

probably there is something wrong only with OBSD 3.2,
but /tmp seems to be a special directory for the mount_union-approach
because the rest of the directories of the CD are mounted like

mount_union /tmp $dir

which leads into this funny view where everything appears in every
directory
But i tried to change /tmp to /mnt and it did't work, but i can't
remember why.

> > secondly i mount_union the rest of the CD in /tmp like
> > http://www.blackant.net/other/docs/h...om-openbsd.php
> >
> > i think this works now (only the mounting)
>
> I tried that but I had some weird problems, like mysterious
> extra directories suddenly appearing in /usr.

that is what i also have. i think this is because mount_union
mounts everything on the same mountpoint and makes one layer above the
other

> > so you think /root and /bin /sbin /usr can stay read only? is
> > this really the case? what does 'mount' say on your system?
>
> In my opinion, yes with the possible exception of /root. Honestly
> speaking I forgot all about that directory , but so far my
> system works quite fine with /root mounted read-only.
>
> output of mount:
>
> /dev/cd0a on / type cd9660 (local, noatime, read-only)
> mfs:27877 on /dev type mfs (asynchronous, local, noatime, \
> union, size=12000 512-blocks)
> mfs:14294 on /tmp type mfs (asynchronous, local, noatime, \
> nodev, noexec, nosuid, size=262144 512-blocks)
> mfs:26743 on /var type mfs (asynchronous, local, noatime, \
> size=262144 512-blocks)
> mfs:16007 on /etc type mfs (asynchronous, local, noatime, \
> size=131072 512-blocks)
> mfs:1247 on /home type mfs (asynchronous, local, noatime, \
> size=262144 512-blocks)

ok, so it is obvious that you did exactly what is suggested in
http://www.blackant.net/other/docs/h...om-openbsd.php
and the rest seems to work fine read-only

> Why should well-behaving *nix applications care if they are on a
> cd or a hd? They see the same file structure as previously, only
> now parts of it is on a read-only partition. With Windoze your
> problem is true, at least to some extent.

to me it seems that i sometimes have to fight with not-well-behaving
*nix applications
i'm a obsd fan but sometimes it would be nice to have a Windoze live-cd
that also doesn't need a hd.

> Have fun with your hd-less workstations and do let us know of
> your experiences when/if you succeed with your attempts.
>
> Have a nice day now,

i'll try it, but this will be a nice week i'm afraid ...

thanx

Ewald


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