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0005970: Software RAID1 boot failure (Kernel Panic) on failed disk

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The issue of bug report <a href="http://bugs.centos.org/view.php?id=5400">0005400</a> seems to be back with a vengeance - a fresh installation of CentOS 6.3 (from CentOS-6.3-x86_64-bin-DVD1.iso) on RAID1 partitions on two SATA drives (using an unencrypted /boot RAID1 partition on md0 = sda1,sdb1 plus one encrypted RAID1 partition on md1 = sda2,sdb2) fails to boot if the sda disk is removed from the chassis.<br /> <br /> Symptoms are the same as were reported in <a href="http://bugs.centos.org/view.php?id=5400">0005400</a> (I could not find a method to re-open that report) - booting stalls after encryption phrase has been entered, no root device found, kernel panic.<br /> <br /> Symptoms remain after yum update to dracut-004-284.el6_3.noarch and re-installation of kernel (despite that <a href="http://rhn.redhat.com/errata/RHBA-2012-0839.html">http://rhn.redhat.com/errata/RHBA-2012-0839.html</a> [<a href="http://rhn.redhat.com/errata/RHBA-2012-0839.html" target="_blank">^</a>] reported this to be fixed from dracut-004-284 onwards).

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