Re: mountkernfs, mountvirtfs, and devpts.sh
On Tue, Apr 27, 2004 at 09:40:29AM +0000, Miquel van Smoorenburg wrote:
> Sounds like you don't have tmpfs enabled in the kernel.
> >tmpfs is trying to mount but it's not configured:
> >laptop:/etc/init.d# fgrep TMPFS /boot/config-2.6.5-xfs-toshiba
> ># CONFIG_TMPFS is not set
> Ouch ?
I'm not using tmpfs for anything that I know of. That's why I didn't
enable it on my last kernel build. Do systems expect that tmpfs will
be available? I see I've got it enabled on other machines but /dev/shm
is empty. Why use the RAM if it's not needed.
[BTW -- can tmpfs get swapped to disk? That would seem to defeat the
purpose, I guess.]
> >But it looks like it is:
> >laptop:/etc/init.d# fgrep tmpfs /proc/filesystems
> >nodev tmpfs
> Yes. That's arguably a kernel bug, but the circumstances leading
> to it are so complicated I doubt anyone wants to touch that one again.
Ok, good. I though I was going crazy.
> >I assume I need devpts for virtual terminal support. Is that a correct
> Well, old-style pty's will still work.
> Now, what was your question again ?
I guess I was trying to understand devpts by asking a question. I'm not
entirely clear what devpts is or does and why it's needed and when it's
not. Does it only provide the ALT+Fn virtual terminal switching or is
is needed for ssh'ing into the box? What would happen if it didn't get