Re: resizing the root file system

[Mouse <mouse%Rodents-Montreal.ORG@localhost>]

>> Well, you need to either mount -o reload or reboot.
> Ah, thanks.
> But I cannot see /etc/rc.d/resize_root doing that.

Curious.  I wonder why not.  I'll have to go digging once I have access
to a more recent system.  (The most recent I run is 5.2, but I have a
login on a 9.1, I think it is, system at work.  That machine isn't
answering ssh at the moment; I expect to get access to it sometime
today.)

>> meaning mount -o remount
> You mean -o reload as above?

Oops, yes.  My apologies!

>> But I _think_ you can't convert a read/write mount to read-only
>> without an unmount, which for the root filesystem means a reboot.

> But mount(8) says (regarding -u):

> also a file system can be changed from read-only to read-write or
> vice versa.  An attempt to change from read-write to read-only will
> fail if any files on the file system are currently open for writing
> unless the -f flag is also specified.

Hm!  Then either my impression is out of date or it doesn't actually
work as documented.  Given the trouble you had, I wonder if in this
case maybe it's the latter.

[another mail]

>> Or you can use a normal fsck, let it set the size back down, and
>> then resize it again when you're done.
> That worked, thanks.

Good!

> However, trying to mount -u -o reload / resulted in

> mount_ffs: /dev/raid0a on /: specified device does not match mounted device

> so I needed to reboot again (from single user).

That...surprises me.  I'd have to dig through the FFS support to have
any idea what's behind that.

> I still wonder how /etc/rc.d/resize_root handles this.

So do I!

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