Using the "skip=" option on dd does not help. It seems to take just as much time as writing zeros to the whole disk. It must skip by reading them, as opposed to issueing an appropriate command to the device.
Instead I have started using the rev 1.2 SuperBlock for mdadm. This places the superblock very near the front of the disk, so I only have to zero a little bit (It says in the man page, but I just do a MB since it is quick). Be aware that kernel-sensed auto-assembly is depricated, and only works with superblock version 0.9 anyway. So you HAVE to keep track of your mdadm.conf. In the past I have never worried about it - it always self assembled, even on a clean install. Just hook up the disks and it worked. Now you have to have the .conf file. Minor annoyance. -- re-install with md(raid) in same place uses old raid data https://bugs.launchpad.net/bugs/137171 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
