On Sun, 16 Jan 2011 18:42:49 -0700 Bob Proulx <b...@proulx.com> wrote:
> Jack, > > With your pastebin information and the mdstat information (that last > information in your mail and pastebins was critical good stuff) and > I found this old posting from you too: :-) > > http://lists.debian.org/debian-user/2009/10/msg00808.html > > With all of that I deduce the following: > > /dev/md125 /dev/sda1 /dev/sdc1 (10G) root partition with no lvm > /dev/md126 /dev/sda5 /dev/sdc5 (288G) LVM for /home, /var, swap, ... > /dev/md127 /dev/sdb /dev/sdd (465G) as yet unformatted > > Jack, If that is wrong please correct me. But I think that is right. > That is Exactly correct. > The mdstat data showed that the arrays are sync'd. The UUIDs are as > follows. > > ARRAY /dev/md/125_0 metadata=0.90 > UUID=e45b34d8:50614884:1f1d6a6a:d9c6914c ARRAY /dev/md/126_0 > metadata=0.90 UUID=c06c0ea6:5780b170:ea2fd86a:09558bd1 > ARRAY /dev/md/Speeduke:2 metadata=1.2 name=Speeduke:2 > UUID=91ae6046:969bad93:92136016:116577fd > > The desired state: > > /dev/md0 /dev/sda1 /dev/sdc1 (10G) root partition with no lvm > /dev/md1 /dev/sda5 /dev/sdc5 (288G) LVM for /home, /var, swap, ... > > Will get to /dev/md2 later... > > > My thinking is that I should rerun mdadm and reassemble the arrays > > to the original definitions... /md0 from sda1 & sdc1 > > /md1 from sda5 & sdc5 note: sda2 > > &sdc2 are legacy msdos extended partitions. > > I would not build a md device with msdos extended partitions under > > LVM2 at this time.. Agree? > > Agreed. You want to rename the arrays. Don't touch the msdos > partitions. > > > Is the above doable? If I can figure the right mdadm commands...8-) > > Yes. It is doable. You can rename the array. First stop the array. > Then assemble it again with the new desired name. Here is what you > want to do. Tom, Henrique, others, Please double check me on these. > > mdadm --stop /dev/md125 > mdadm --assemble /dev/md0 --update=super-minor /dev/sda1 /dev/sdc1 > > mdadm --stop /dev/126 > mdadm --assemble /dev/md1 --update=super-minor /dev/sda5 /dev/sdc5 > > That should by itself be enough to get the arrays going. > > But, and this is an important but, did you previously add the new disk > array to the LVM volume group on the above array? If so then you are > not done yet. The LVM volume group won't be able to assemble without > the new disk. If you did then you need to fix up LVM next. > NO! I did NOT add /dev/sdb and /dev/sdd to the LVM.. So that is not a problem.. I was about to do that when the machine failed.. > I think you should try to get back to where you were before when your > system was working. Therefore I would remove the new disks from the > LVM volume group. But I don't know if you did or did not add it yet. > So I must stop here and wait for further information from you. > > I don't know if your rescue disk has lvm automatically configured or > not. You may need to load the device mapper module dm_mod. I don't > know. If you do then here is a hint: > > modprobe dm_mod > > To scan for volume groups: > > vgscan > Found volume group "Speeduke" using metadata type lvm2 > To activate a volume group: > > vgchange -ay 5 logical volume(s) in volume group "Speeduke" now active > > To display the physical volumes associated with a volume group: > > pvdisplay > PV Name /dev/md126 VG Name Speeduke Other data ommited PV UUID kUoBgV-R9n6-exZ1-fdIk-aqlb-7Ue1-R3B1PD > If the new disks haven't been added to the volume group (I am hoping > not) then you should be home free. But if they are then I think you > will need to remove them first. > > I don't know if the LVM actions above are going to be needed. I am > just trying to proactively give some possible hints. > > Bob Bob, You cannot know how much I appreciate the time and effort you and others have given to this, hopefully a few more steps and all will be well.. I have not done the things you have suggested above. I'll wait for your response and then go!!! One other thing I am bothered by, md0, md1 were built using mdadm v0.90, md2 was built with the current mdadm v 3.1.4. which changed the md names. Does this matter???? Jack Jack -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20110117071903.09664...@torrid.volunteerwireless.net
