On 4/8/2011 1:22 PM, Timothy Murphy wrote: > >> USB disks _can_ have partitions (obviously, since you can stick about >> any drive into a usb adapter), but small ones typically don't and you >> don't need them to boot. The bootdisk.img layout appears to be a vfat >> on the raw disk (no partitioning) with syslinux configure to make it boot. > > The instructions in<http://docs.redhat.com/docs/en- > US/Red_Hat_Enterprise_Linux/5/html/Installation_Guide/ > certainly advise making a partition /dev/sdb1 > with partition type b and running mkdosfs on it. > > I didn't actually run syslinux after dd-ing; > the CentOS instructions don't say you should. You don't need to for bootdisk.img. It is an image of a disk that is already configured so I'm having a hard time thinking of anything that could have gone wrong in the dd to your device - unless maybe it was automounted at the same time. -- Les Mikesell lesmikesell at gmail.com