Phillip Susi <psusi@xxxxxxxxxx> writes: > Could you supply some more background information? The first piece is that I've now dropped dmraid for mdraid, since I don't *really* need to dual boot to Windows. I want to run Windows virtualized. Is anyone going to argue that I'm giving up something important by using mdraid? > What kind of raid setup do you have? Onboard NVRaid on a Tyan Thunder K8WE s2895. > How did you configure LVM? Not sure I understand the question. I followed the https://wiki.ubuntu.com/FakeRaidHowto which shows how to get dmraid running from a LiveCD and then I just used fdisk and LVM command-line tools to set it up. > What kind of logical volumes did you create within the volume group? Typical/aggressive arrangement: / 100M /usr 50G /var (also storing /tmp here) 10G /var/spool 4G /var/log 4G /home 200G /swap 16G /usr/local 50G /boot is on a primary partition outside LVM > How did you direct the system to boot from the correct root volume ( > root= kernel parameter )? The FakeRaidHowo tells all. I really did follow the directions :) > I have not used LVM before but I have read a good deal about it, but I > wrote the FakeRaidHowto you followed so I may be able to help. Oh! I've spent many hours with your webpage, so thanks (I think ;->) for writing it! You might want to add the following: To use LVM2 w/dmraid, change /etc/lvm/lvm.conf to include types = [ "device-mapper", 254 ] You'll want to do that in the chrooted filesystem also, of course, so you do this twice, or you copy the file. To suppress a lot of warnings about locales, install language-pack-en immediately after chrooting. (the 4 July dmraid restart trick works for me too) > My initial guess is that the initrd is mounting the wrong root > filesystem, such as your /boot ( which is a regular partition, not > part of the volume group right? ) Right. > and this partition has no /sys and > /proc directories, which is why it complains about not being able to > mount them. Well, IIRC there was nothing useful mounted on /root. I don't remember exactly what it was, but it just contained lost+found. I can mount /boot on /root and I see the files. > By the way, is there a particular reason you want to use LVM over > dmraid? I'm not quite sure what benefits it would provide over > conventional partitioning. LVM has lots of benefits in terms of flexibility. It's easy to non-destructively resize partitions, including extending them into new disks when you run out of space. There's snapshotting and many other useful (-sounding) features. I'm not an expert sysadmin yet, but I don't want to cut myself from these capabilities at step 1. -- Dave Abrahams Boost Consulting www.boost-consulting.com _______________________________________________ Ataraid-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/ataraid-list
