Am 12.12.2011 17:01, schrieb Joseph Spenner: > > ________________________________ > From: Joseph Spenner <joseph85750 at yahoo.com> > To: "centos at centos.org" <centos at centos.org> > Sent: Monday, December 12, 2011 8:51 AM > Subject: [CentOS] dd disk will not boot - can't find /dev/root > > 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): > > (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. boot from the rescue-cd and reinstall the kernel of the cloned system or make a new initramdisk per hand - i guess the kernel is missing some needed hardware-driver of the new computer in the initrd -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 262 bytes Desc: OpenPGP digital signature URL: <http://lists.centos.org/pipermail/centos/attachments/20111212/d6f9d9dc/attachment-0004.sig>
