Public bug reported: Problem occurs when activating an existing raid array on boot. My configuration, which exposed this, was four SATA drives in a Raid-10 configuration created with mdadm. On boot, udev appears to be entering some race conditions with mdadm - the array is activated with only three of the drives.
This appears to be an issue with using the "auto" detection of mdadm. Consulting the linux-raid mailing list shows the "incremental" flag was expressly created for udev - but it doesn't appear to have be being used by udev! Please contact the mdadm developers (like Neil Brown) to get this resolved. ** Affects: udev (Ubuntu) Importance: Undecided Status: New ** Changed in: udev (Ubuntu) Sourcepackagename: None => udev -- udev not using mdadm incremental https://bugs.launchpad.net/bugs/157981 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs