Re: grub can't install, server non bootable
I would avoid upgrading from 11.10. The point of a clean install is also not tp upgrade right away. I would download 12.04 LTS server and keep it at hand. And I wouldn't try upgrading to 12.10 either, I stick to LTS for servers.
I think the raid will be picked up, but I'm not sure. The partitions with the raid flag will be picked up definitely, so to configure new raid you might need to go into Configure Software Raid while in the partitioning menu.
I'm also not sure if you need to create new raid whether the installer will allow you to have a missing member, like the --create command allows you. You will have to find that out for yourself.
At the end of they day you can always create the raid from all four disks and copy files from your usb backup. In that case i suggest booting the server in live mode first and partition sdb with exactly the same partitions as we did with the other three disks using parted. After that start the server install and create the md0 raid1 of 4 partitions for root, and the md1 raid5 of four partitions for /data.
After you create md1 you can go into Configure LVM and use it as physical device for LVM. If you already deleted sdb you can call the VG the same, the old one will be gone anyway. And don't make the LVs too big for start, only as big as you need them and you barely had few GBs used. The point of LVs is that they can grow as you need them, shrinking is little more complicated. So, start small and grow, not start big and then get into trouble how to shrink them best.
Don't forget in the partitioning step to specify all four swap partitions to be used as swap area, one by one.
That should be all.
Last edited by darkod; February 15th, 2013 at 04:12 PM.
Darko.
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Ubuntu 18.04 LTS 64bit
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