Hi, I've tried to do my homework (man ddrescue, info ddrescue, google) but think I might need some OpenBSD spesific advice before embarking on my first attempt ever to salvage data from a dying disk.
Issue: I don't have a spare disk that is large enough to make a raw copy/image of the original disk, so I'm forced to work directly with the original disk. That involves bioctl(8) to unlock the crypto volume and then hoping to be able to extract only /var (i.e /var/mysql) into an image file or a partition on a safe disk using ddrescue. Question: ddrescue is said to be able to extract partitions and there are lots of examples from Linux world, but for OpenBSD - which descriptor to use? /dev/sd1e or the raw descriptor /dev/rsd1e? Any advice will be much appreciated. Thanks in advance, Erling
