<div class="gmail_quote">On Wed, Nov 24, 2010 at 3:23 PM, John Drescher <span dir="ltr"><<a href="mailto:drescherjm@gmail.com">drescherjm@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
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</div></div>Not sure, I am not a ubuntu expert so I really can not help with any<br>
thing specific to that distro.</blockquote><div><br></div><div>Here's what it says on boot-up:</div><div><br></div><div>mount: mounting none on /dev failed: No such device</div><div>udevd[927]: error getting socket: Invalid argument</div>
<div><br></div><div>error initializing netlink socket</div><div>udevd[927]: error initializing netlink socket</div><div><br></div><div>libudev: udev_monitor_mem_from_netlink: error getting socket: Invalid argument</div><div>
Segmentation fault</div><div>Gave up waiting for root device: Common problems:</div><div>...</div><div>ALERT! /dev/md0 does not exist. Dropping to a shell!</div><div><br></div><div>BusyBox...</div><div><br></div><div>When I run dmesg in busybox, all I can see is the last screenful.</div>
<div>Here's the relevant part:</div><div><br></div><div>14.639874] raid6: using algorithm sse2x4 (4465 MB/s)</div><div>14...] md: raid6 personality registered for level 6</div><div>14...] md: raid5 personality registered for level 5</div>
<div>...4</div><div>...10</div><div>14...] wait-for-root[977]: segfault at 34 rip 7451f7dc0cc2 rsp 7ffff001ee error 4</div><div><br></div><div>But I was poking around this shell and found some interesting things.</div><div>
I didn't realize it, but I could run a 'mdadm --assemble /dev/md0' from here.</div><div>The trouble is, it said something like:</div><div><br></div><div>mdadm: USER root does not exist</div><div>mdadm: GROUP disk does not exist</div>
<div>bla bla bla failed</div><div><br></div><div>Sure enough, there's an /etc directory but it doesn't have any passwd or group file.</div><div>Yet /etc/mdadm/mdadm.conf says:</div><div><br></div><div><div>CREATE owner=root group=disk mode=0660 auto=yes</div>
</div><div><br></div><div>% ls -l /dev/md0</div><div>brw-rw- 1 0 0 9, 0 2010-11-25 00:54 /dev/md0</div><div><br></div><div>With every new piece of information, I get more and more suspicious of the</div><div>upgrade to Lucid not creating the initrd correctly.</div>
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