Attach and identify the destination disk ⇒Ħ. Sudo dd if=/dev/disk2 of=/Users/mike/diskimage.imgĤ. If the installation has primary and backup signalling servers, clone one at a time to avoid service interruption. Make a working copy of a Signalling Server hard disk This option can often recover a dead hard drive, or an unreadable file, but it does not repair the error. If the operation stops with an I/O error, try to salvage all readable data with conv=noerror,sync. conv=noerror,sync tells dd to be fault-tolerant and ignore read errors (optional).bs=n sets both input and output block size (optional, default=512 byte blocks).of= specifies output path (file, or device).if= specifies input path (file, or device).There's also a freeware version of dd for Windows available, with instructions. How to clone a hard disk or USB stick in the terminal.ĭd (disk duplication) is a Mac OS X command-line utility which can read raw data off a disk, even if the Mac doesn't understand the filesystem.
