This one time, at band camp, Howard Lowndes wrote:
>On Tue, 2004-05-18 at 18:24, Jeff Waugh wrote:
>> <quote who="Howard Lowndes">
>> 
>> > Having said that, the next problem is that you know how to do it, the Deb
>> > expert next to you knows how to do that, but beyond that there is very
>> > little assistance out there other than the mail lists, which should be the
>> > last resort, as most of them tend to retort, sometimes rightly, "RTFM".
>> 
>> Sure, but that's what SLUG and DebSIG are for. :-)
>
>OK, so how do I install Debian with RAID and LVM?

Looks like I'm about to do it again here at work, so my memory has been
renewed: the short version of how I do my raid conversions/migrations is
like this:

* do the install onto one disk
* create the partitions on the second disk, set the partition types
  correctly
* create raid/lvm volumes in degraded mode on second disk
* copy the data from the first disk onto the second disk

now, depending on whether or not this is a live migration or not:
* shut down all the services
* chroot into the raid mount
* rsync data
* start up services inside the chroot
* pivot root so the original disk is no longer mounted at /

otherwise it's usually:
* make sure the MBR is correctly set up to boot off the second disk
* reboot

then:
* copy the partition table from the second disk to the first:
  sfdisk -d /dev/sdb | sfdisk /dev/sda
* hot add the partitions to the raid volumes
* fiddle with bootloader to make sure everything is set up right
* wait for the raid sync to complete

I've not used LVM on production systems so adjust for personal taste.

I can elaborate more later if google can't help.

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