Daniel Frey <djqfrey <at> gmail.com> writes:
> fdisk does have a partition/drive limit of ~2.2TB, but this drive should > still work with it. The only other option is GPT, but I don't think grub > boots from that yet (unless you use grub2 with patches?) The failed install used media from March, 2011. I'm going to use newer installation media: install-amd64-minimal-20110714.iso That should solve the gptpart and grub issues. > > fdisk -H 224 -S 56 /dev/sda > That should align it to 4k blocks, I had to do the same on my SSD > (224/56=4)... Nice to know. I'm new to linux software raid. I do run custom gentoo fire walls on 4 G Compact Flash; so I'll be seeking your advice, the next time I decide to build a new firewall, as it will use dual CF in a Raid 1 config... Once I gain some confidence in Raid1 for a workstation. > Are the partitions on each drive *exactly* the same? If the end cylinder > and start cylinder for the other drive is off by one it will affect two > partitions, leaving them in a dirty state and the third in a clean state. Identical drives, identical partitioning. A new RAID1 install to begin later on today. > > > > > It has been suggested kernel >=2.6.37 will have (better?) > > support for 4k sectors disks [1]. > > > > I believe I have 2.6.37 on my htpc and it works fine with the 4k-aligned > SSD. New install media should have the >= 2.6.37 kernel, solving this issue. > I would start over. YEP.... > > Are you using BIOS-raid? Nope. > not type 'fd'. I did use fd on the partition type. Originally, I use ext4 on the boot partition. Later I change it to ext2 but neither would work. I now assume the borked install was not due to using ext4 on boot partition, but grub-kernel-mdadm-diskformat issues from my research and the errors I saw..... > However, there's a lot of information on how to use mdraid and create > native linux software raid partitions. This is the best(most current)doc I have found. Let me know if a better doc to follow exists for gentoo Raid1 installation [1] > native linux raid partitions, they were /dev/md0, /dev/md1, etc. some of the errors I got were unique to that md125, md126, md127 type of errors. [1] talks about a work around for that. > > I can't really help more until I know exactly what you are trying to do. New install (new thread when trouble arises) Workstation (amd 64 dual 2t Seagate drives) all RAID1 for boot,/,swap. > Right now (to me, anyway) it looks like you are mixing software raid and > BIOS fakeraid, as with native mdadm you generally don't have partitions > (/dev/md126p1, /dev/md126p2, etc) with native raid (which is /dev/md0, > /dev/md1, etc) as I said above. I check the bios, no raid activated in Bios.... [1] http://en.gentoo-wiki.com/wiki/RAID/Software#Setup_RAID
