I am going to plan to make a backup with a old server. Previously, my guys told me that when using dd for clone like command to make the clone results in hard disk corruption. I am planning to work like this:
On the new machine: 1. Boot from live cd for else that supports networking. 2. Mount the local hard drive and format as ext3 (label: /) 3. rysnc the old machine root (/) to the new one.
Two machine hardware configuration is identicial, I would like to ask, does it work?
On Sat, 17 May 2008 02:06:56 -0700, Jacky, Jack wrote: > I am going to plan to make a backup with a old server. Previously, my > guys told me that when using dd for clone like command to make the clone > results in hard disk corruption. I am planning to work like this:
dd might work like a charm...
Had some controller issues on a Wintendo. Installed old and new disk in a lab computer. Booted a Linux live CD. Used dd to copy the old 40G SCSI HD onto a new 150G SATA. Created a new NTFS-partition for extra space for home folders. Installed the SATA disk into the Wintendo box and booted. I then moved the home folders, but that's another story...
> On the new machine: > 1. Boot from live cd for else that supports networking. 2. Mount the > local hard drive and format as ext3 (label: /) 3. rysnc the old machine > root (/) to the new one.
4. Install bootloader. (man grub-install) 5. Check /etc/udev for rules that might change expected device names. (On my workstation, changing /etc/udev/rules.d/z25_persistent-net.rules is critical in order to make networking work from first boot)
> Two machine hardware configuration is identicial, I would like to ask, > does it work?
YES..!
-- Regards/mvh Joachim Mæland
If everything seems under control, you're just not going fast enough. -Mario Andretti
> I am going to plan to make a backup with a old server. > Previously, my guys told me that when using dd for clone like command > to make the clone results in hard disk corruption. > I am planning to work like this:
> On the new machine: > 1. Boot from live cd for else that supports networking. > 2. Mount the local hard drive and format as ext3 (label: /) > 3. rysnc the old machine root (/) to the new one.
> Two machine hardware configuration is identicial, I would like to ask, > does it work?
I've done this.
* dd is, overall, fine, but takes a bloody loonger time to run and isn't trivially resized to larger disks.
* rsync will not bring over the boot loader. For that, you may need to either 'dd' the boot loader and the '/boot' partition if you have a separate one, which is easy to do, or boot with that live CD on the new box, mount the / and /boot partitions, do a 'chroot' to the mounted /, and run 'grub-install'
> > I am going to plan to make a backup with a old server. > > Previously, my guys told me that when using dd for clone like command > > to make the clone results in hard disk corruption. > > I am planning to work like this:
> > On the new machine: > > 1. Boot from live cd for else that supports networking. > > 2. Mount the local hard drive and format as ext3 (label: /) > > 3. rysnc the old machine root (/) to the new one.
> > Two machine hardware configuration is identicial, I would like to ask, > > does it work?
> I've done this.
> * dd is, overall, fine, but takes a bloody loonger time to run and isn't > trivially resized to larger disks.
> * rsync will not bring over the boot loader. For that, you may need to either > 'dd' the boot loader and the '/boot' partition if you have a separate one, > which is easy to do, or boot with that live CD on the new box, mount the / and > /boot partitions, do a 'chroot' to the mounted /, and run 'grub-install'
Great thanks guys. Your help is highly appreciated. I will try all the suggestions. Good luck to me. Thx. ^.^
