On Fri, Dec 4, 2009 at 3:57 PM, Patrick O'Callaghan <pocallaghan@xxxxxxxxx> wrote: > On Fri, 2009-12-04 at 13:42 -0800, Daniel B. Thurman wrote: >> BEFORE: >> Disk1: partition#1: psize=100G, size=97.65G, used=91.23G, unused=6.42G >> Disk2: partition#1: psize=250G, size=244.14G (newly formatted) >> >> I did a dd if=/dev/sda1 of=/dev/sdb1 >> >> AFTER: >> Disk1: partition#1: psize=100G, size=97.65G, used=91.23G, unused=6.42G >> Disk2: partition#1: psize=250G, size=244.14G, used=237.72G, >> unused=6.42G >> >> WTF... > > You seem to have a misconception about what dd is for. It just copies > data from A to B with no interpretation at all. In this case dd copied > the entire contents of Disk1 to Disk1, including all the system > meta-information (superblock, inode list, free list etc.), but since > partition table info is not part of that data (it's held on a different > part of the disk), Disk2's partition layout didn't change. So Disk 2 now > has a filesystem sitting on it that has a lot of physical free space at > the end which it doesn't know about. It needs to be resized, e.g. with > gparted. > > poc Would it have been better to dd the entire disk (i.e. dd if=/dev/sda of=/dev/sdb) which should also copy the partition data and then use gparted or other tool to resize the partition? Richard -- fedora-list mailing list fedora-list@xxxxxxxxxx To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
