Re: [PATCH] Allow NBD to be used locally

From: devzero
Date: Sat Feb 02 2008 - 12:34:24 EST


> How will that work? Fuse makes up a filesystem - not helpful
> if you have a raw disk without a known fs to mount.

take zfs-fuse or ntfs-3g for example.
you have a blockdevice or backing-file containing data structures and fuse makes those show up as a filesystem.
i think vmware-mount is not different here.

> This still does not account for compressed disk images, for example.
unfortunately, not




>
>
> On Feb 2 2008 15:40, devzero@xxxxxx wrote:
> >
> >>In fact, VMware uses local nbd today for its vmware-loop helper
> >>utility, most likely because of the above-mentioned reasons. (Though
> >>it quite often hung last time I tried.)
> >
> >seems this will go away. recent vmware versions (e.g. server 2.0
> >beta) have a fuse based replacement for that.
>
> How will that work? Fuse makes up a filesystem - not helpful
> if you have a raw disk without a known fs to mount.
>
> >>So what we have is non-linearity -- LBA 22 comes after LBA 40 -- loop
> >>does not deal with that.
> >
> >maybe dm-loop does? http://sources.redhat.com/lvm2/wiki/DMLoop
>
> This still does not account for compressed disk images, for example.
>
>


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