On Tuesday, 17 November 2020 17:47:09 GMT the...@sys-concept.com wrote: > I'm looking for an idea to duplicate my old gentoo system. > I'm using old programs that require older version php, ( PHP Version > 5.6) the program is not compatible with newer php. 7.4 and apache 2.2 > > Gentoo is install on 1TB SSD (/dev/sda) > The new 2TB SSD is M.2 (so it has a strange name) > > 1.) Is my option only: > dd if=/dev/sdX of=/dev/sdY bs=64K conv=noerror,sync > > If I duplicate the drive this way I'll end-up with two partitions, as > I'll have 1TB free on a new drive. Or is there a way to resize > partition on M.2 SSD > > 2.) Another options, I could dig-out the old programs from "attic", but > that will not be an easy job.
You could go about this in a number of different ways. dd command will take forever, as it is copying every bit and byte from one disk to the next, whether it contains data or not. I prefer to use a clonezilla liveUSB to copy a disk or selected partitions between disks, which will take significantly less time as only blocks with data get copied over. You can increase the partition size after you finish copying it onto the new disk and then the filesystem size within it. Gparted can run both steps in a single stroke. If you prefer a more manual and tedious way, you can create a partition as large as you need it to be on the new disk, format it with a filesystem of choice, then use rsync or tar to copy over the files you want and --exclude anything you don't want copied over.
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