[9fans] fs configuration botch

[9fans] fs configuration botch

[erik quanstrom, erik quanstrom]

in rereading the fs configuration information and
my actual fs configuration i see that i have 
	c[w.0.<0-1>.0]p(h0.0.0)02.98
but i think i wanted
	c[w.0.<0-1>.0]fp(h0.0.0)02.98
with an "f".

is there any way to save this configuration?
that is, does "f" change the disk represnetation or
only the semantics?

- erik

Re: [9fans] fs configuration botch

[geoff]

As per the discussion of a week or so ago, fake worms ("f" devices)
have a bitmap of written blocks at the end of the underlying device or
partition.  I think you'll have to ream the fake worm (or more likely
the whole cached worm) to create the bitmaps.

Re: [9fans] fs configuration botch

[erik quanstrom]

just to be clear: i want to do this?

	halt
	# reboot fs
	config
	fsys main c[w.0.<0-1>.0]fp(h0.0.0)02.98
	ream
	end

sorry for being pedantic but i don't like losing data.
(even if i can recreated it.)

- erik

On Fri Aug 18 13:15:38 CDT 2006, geoff@plan9.bell-labs.com wrote:
> As per the discussion of a week or so ago, fake worms ("f" devices)
> have a bitmap of written blocks at the end of the underlying device or
> partition.  I think you'll have to ream the fake worm (or more likely
> the whole cached worm) to create the bitmaps.

Re: [9fans] fs configuration botch

[geoff]

Almost; you should backup anything of value in main first, since ream
will empty it, and declare the dump file system after, like this:

	# backup main elsewhere
	halt
	# reboot fs
	config
	fsys main c[w.0.<0-1>.0]fp(h0.0.0)02.98
	fsys dump o
	ream main
	end