On Mon, Dec 12, 2011 at 9:51 AM, Joseph Spenner <joseph85750 at yahoo.com> wrote: > OS= CentOS 5.4, 64bit. > > I've always had great luck using dd to copy entire disks, and booting on other systems. However, I'm having difficulty with a couple systems. I boot using an install DVD so the OS disk is quiet, and dd to my target disk: > > # dd if=/dev/sda of=/dev/sdb bs=1024k > > /dev/sdb is the blank disk. The disks are 2T. After a few hours the operation is complete. But when I try to boot the new disk on my other system, I get the following errors after the CentOS boot menu (it counts down to boot the default disk fine, then this error): If you do much of this, I'd recommend using the clonezilla-live distro which will automate it and use partclone to avoid having to copy the unused parts of the disk. > (screen shot at http://img214.imageshack.us/img214/645/centosbooterror.jpg ) > > I've read posts regarding the /dev/root error, and they talk about rebuilding initrd. I've tried some of the fixes mentioned, but have had no success. > All I can think of is slightly different hardware on the new system where I'm trying to boot, but I'm not sure what the difference could be. > They're both 64bit SuperMicro systems. > > If anyone has any ideas, I'd love to hear. I suspect the hardware isn't really identical. Can you boot the source machine from the copied disk? -- Les Mikesell lesmikesell at gmail.com
