Hi William

On 03/17/2011 06:15 AM, William Shu wrote:
> Thank you very much Urs.
>
> Below are the requested outputs: (A) for losetup; and (B) for dracut. It seems the overlay is not being found!
>
> On a related matter, you say livecd-tools and liveusb-creator are part of the live iso's, but I had to "yum install" them before I could use them in making the USB!
>

Thanks for the debug info.

You are right. liveusb-creator is not part of Live iso's. But livecd-tools and therefore livecd-iso-to-disk should be 
installed. However, doing "yum update livecd-tools" is always a good idea.

Yes, the overlay is not found in your case:

dracut: + mkdir /overlayfs
dracut: + mount -n -t auto UUID=4C04-9372 /overlayfs
dracut: + [ -f /overlayfs/LiveOS/overlay--4C04-9372 -a -w /overlayfs/LiveOS/overlay--4C04-9372 ]
dracut: + umount -l /overlayfs
dracut: + [ -z  ]
dracut: + [ -n UUID=4C04-9372 -a -n /LiveOS/overlay--4C04-9372 ]
dracut: + warn Unable to find persistent overlay; using temporary

Can you quickly check, if the overlay file is on your Live USB drive and if it is writable (w)? In your case the overlay 
file should be

/LiveOS/overlay--4C04-9372

You might want to reproduce the mounting of your USB stick (as done be dracut) on a SL6 system. Plugin the stick. If it 
gets auto-mounted, un-mount it. As root try

mkdir /overlayfs
mount -n -t auto UUID=4C04-9372 /overlayfs
[ -f /overlayfs/LiveOS/overlay--4C04-9372 -a -w /overlayfs/LiveOS/overlay--4C04-9372 ] && echo ok


Cheers,

	Urs