On Tue, Mar 23, 2010 at 11:35 AM, Benjamin Franz <[email protected]> wrote: >> solarflow99 wrote: >>> >>> Another advantage >>> >>>> >>>> of MD Raid is that it provides to you an alternative boot environment, >>>> grub >>>> boots from MD and does not from LVM (at least you use grub2 which I would >>>> not until it gets standard). >>>> >>>> >>> >>> Are you sure grub will boot of a MD device? I was certain /boot >>> always has to have a normal partition. >>> >> >> It will boot off a RAID1 /boot partition fine. Other RAID levels - no. > > >how is that possible? it can't even load the md module to be able to >read it. /boot always had to be on a type 83 partition
I know that I can setup the boot partition via kickstart [I've never backed into it though] and my servers work just fine. I can pull one disk and it it still boots of the second and both are mirrored. Here is my kickstart config file as an example - From here I build LVM volumes on the two larger md mirrors with swap unmirrored and a mirrored boot. Hope this helps. bootloader --location=partition --driveorder=sda,sdb --append="rhgb quiet" reboot # The following is the partition information you requested # Note that any partitions you deleted are not expressed # here so unless you clear all partitions first, this is # not guaranteed to work clearpart --all --drives=sda,sdb part raid.24 --size=256 --ondisk=sda --asprimary part raid.25 --size=256 --ondisk=sdb --asprimary part swap --size=16384 --ondisk=sdb --asprimary part swap --size=16384 --ondisk=sda --asprimary part raid.32 --size=112640 --ondisk=sdb --asprimary part raid.31 --size=112640 --ondisk=sda --asprimary part raid.42 --size=100 --grow --ondisk=sdb --asprimary part raid.41 --size=100 --grow --ondisk=sda --asprimary raid /boot --fstype ext3 --level=RAID1 --device=md0 raid.24 raid.25 raid pv.33 --fstype "physical volume (LVM)" --level=RAID1 --device=md1 raid.31 raid.32 raid pv.43 --fstype "physical volume (LVM)" --level=RAID1 --device=md2 raid.41 raid.42 Paul LaMadeleine | Systems Engineer | CL Verify LLC Direct: 813-466-1775 | Mobile: 781-858-3823 | Fax: 813-289-5557 e-mail: plamadeleine at clverify.com | Web: www.clverify.com | AIM: pelamadeleine Please consider your environmental responsibility before printing this e-mail The information contained in this e-mail message is intended only for the personal and confidential use of the recipient(s) named above. If the reader of this message is not the intended recipient or an agent responsible for delivering it to the intended recipient, you are hereby notified that you have received this document in error and that any review, dissemination, distribution, or copying of this message is strictly prohibited. If you have received this communication in error, please notify us immediately by e-mail, and delete the original message. This communication does not reflect an intention by the sender or the sender's client or principal to conduct a transaction or make any agreement by electronic means. Nothing contained in this message or in any attachment shall satisfy the requirements for a writing, and nothing contained herein shall constitute a contract or electronic signature under the Electronic Signatures in Global and National Commerce Act, any ver! sion of the Uniform Electronic Transactions Act or any other statute governing electronic transactions. _______________________________________________ rhelv5-list mailing list [email protected] https://www.redhat.com/mailman/listinfo/rhelv5-list
