Re: [uml-user] Re: [insert distro name here] install instructions

[Paul W. <pd...@ex...>]

On Tue, May 04, 2004 at 12:49:45PM +0100, Paul Warren wrote:
> > mount: wrong fs type, bad option, bad superblock on /dev/loop1,
> >        or too many mounted file systems
> 
> I don't understand that bit fully - is it because there is now a
> partition table at the beginning of that disk?

Yes it is.  The way around this appears to be as follows -

First run fdisk on your image:

fdisk -l fedora-core-1-20040429
You must set heads sectors and cylinders.
You can do this from the extra functions menu.
 
Disk fedora-core-1-20040429: 0 heads, 0 sectors, 0 cylinders
Units = cylinders of 1 * 512 bytes
 
                  Device Boot    Start       End    Blocks   Id  System
fedora-core-1-20040429p1   *        33   6291456   3145712   83  Linux

The important numbers seem to be 33 and 512.  Take (33-1) * 512 = 16384,
and use that as an offset to the loopback mount:

mount fedora-core-1-20040429 tmp -o loop,offset=16384

I'm guessing that the "-1" is because the units are 1 based or
something?

I've been doing this by trial and error, but will it always be the case
that the partition table is 16k long?

Paul