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It looks like you've backuped an entire disk that might contain partitions. So first check if you have partitions inside: sudo fdisk -lu save.dd If you have partitions inside, use the start offset of the partition to create a loopback device (e.g. a partition starts at 56): sudo losetup -o $((56*512)) /dev/loop0 save.dd Now you should be able to use the partition. First check and than

Hi All, Is there a way to check the harddisk health before CentOS installation.? One way I used to do was by using --badblocks check in ks.cfg file while using RH 7.2. This is not working (atleast not with the same syntax as in RH 7.2) in CentOS. Is there an alternate (correct) syntax or is there a new (better) way to check harddisk health before CentOS installation? Please help me