[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Old Index]
Re: Installing a NetBSD DomU on a file-backed disk
On Wed, Jun 13, 2012 at 2:42 AM, Manuel Bouyer
> On Tue, Jun 12, 2012 at 07:39:14PM -0400, Blair Sadewitz wrote:
>> Oh, btw, why does the dmesg list the root device twice? Also, it
> I've not noticed this; maybe it's because there's no disklabel ?
Oh, there is disklabel; it's not a very _good_ one, but it's there:
disk: Xen Virtual ESD
total sectors: 41943040
headswitch: 0 # microseconds
track-to-track seek: 0 # microseconds
# size offset fstype [fsize bsize cpg/sgs]
a: 41943040 0 4.2BSD 2048 16384 0 # (Cyl. 0 - 20479)
c: 41943040 0 unused 0 0 # (Cyl. 0 - 20479)
d: 41943040 0 unused 0 0 # (Cyl. 0 - 20479)
Pv-grub, to my astonishment, works with ffs (at least v1) like that.
I have no idea how it would handle anything less straightforward, e.g.
non-zero offsets, ffsv2, etc. I surmise that being a domu on a netbsd
host is more pleasant ...
I wish there was something I could do about the poor disk performance
besides turning off wapbl. But whether I turn it off or not, any
other suggestions for better performance [particular to this case]?
Main Index |
Thread Index |