I suspect you're correct in that I'll end up with the boot partitions being in RAID1 and the data in RAID6, however I am seriously considering having the boot in RAID6 as well...if I can integrate the mdadm.conf into the initramfs properly I can't see a reason not to do this? Had a look at the metadata=0.9 option but reading the info on mdadm metadata I think I'd prefer to have the metadata at the start of the drive, also it looks like metadata=1.2 has extra functionality that I may want to use later. On 24 May 2015 at 09:36, Mikael Abrahamsson <swmike@xxxxxxxxx> wrote: > On Sun, 24 May 2015, Another Sillyname wrote: > >> So I now have 5 partitions. >> >> a - bios_boot >> b - efi >> c - boot >> d - root >> e - swap >> >> I'll be adding one more when I'm happy this is working. >> >> f - home >> >> 3. Using the methods above I have now created a bootable fedora >> system, on a single drive in preparation to now RAID the required >> partitions. However my concern comes regarding the mdadm metadata, >> simplistically metadata=1.2 apparently writes it's superblock to 4k >> after the start of the device, this is exactly where my efi partition >> (b above) starts, so my concern is will this superblock overwrite or >> mess with my current partition table? >> >> 4. If the next stage works then I think what I'll actually end up >> doing is...... >> >> scrub what I have now. >> >> create the arrays before running the Fedora Live installer (this >> assumes the installer will see /md[x] devices and allow them to be >> used to install to). Then incorporate the mdadm.conf data into the >> initramfs and regenerate initramfs. >> >> Ideas/Thoughts/Criticisms? > > > You don't want to run MD on the entire drive in this case, you most likely > want to create multiple RAID1 and RAID6 mirrors. RAID1 your boot, root and > swap, then run RAID6 on your home partition. Use use superblock type that > creates the superblock at the end for the RAID1 partitions. > > Also, you don't want to refer to "sda" when booting, you want to use > UUID=<uuid> in fstab, crypttab etc. > > -- > Mikael Abrahamsson email: swmike@xxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
