Hi, On Wed, 2022-06-01 at 17:16 -0500, o1bigtenor via Dng wrote: > On Wed, Jun 1, 2022 at 4:57 PM tito via Dng <dng@lists.dyne.org> > wrote: > > > > On Wed, 1 Jun 2022 16:34:21 -0500 > > o1bigtenor via Dng <dng@lists.dyne.org> wrote: > > > > > Greetings > > > > > > When the parts get here I'm going to be installing Devuan testing > > > on > > > the system. > > > > > > I have not ever installed like this so first the configuration. > > > > > > Ryzen 7 3800X > > > Asus TUF Gaming X570-Pro mobo > > > 64 GB ram > > > 2 - 1 TB M2 drives > > > 2 - 1 TB SSDs > > > > > > I want to set the system up so that the drives are 2 sets of > > > Raid-1 with > > > (proposed) > > > set 1 > > > /efi, /boot, /, /usr, /usr/local, /var, swap > > > set 2 > > > /home > > > > > > How do I set up the raid arrays? > > > > They could be easily setup during installation process in the disk > > partitioning step if I recall > > it correctly. See > > https://wiki.debian.org/DebianInstaller/SoftwareRaidRoot > > for more info (just the first part). > > Interesting - - - that wiki is current as of 2012. > That's why I wasn't trusting the information - - - - the newest stuff > I could find was > some 3 or 4 years old and I've found that newer stuff has different > gotchas than > the older versions. > > The assumption is that LLVM is used on top of the array. (from the > wiki) > Is that necessary? > (I've never used LLVM to date!) > > My idea was to partition the disks just like normal after the array > was built. > Is that possible? > I recently rebuilt my principal Devuan instance as a LVM2 on top of a mdadm RAID1 array.
Previously I had three mdadm RAID1 arrays md0 (/ root), md1 (/home) and md2 Swap) on the two disks. I now have 1 mdadm RAID array with a LVM physical partition containing a logical volume group with / root /home and swap partitions in it. The advantage of LVM is that I can resize the partitions easily and I can also schedule backups from LVM snapshots, effectively off a consistent version of the live system. I also backed up the original / root and /home partitions and restored then to their new homes. The UUIDs hadn't even changed though obviously their location had (so fstab was OK). I chrooted into the new root to run update-grub and grub-install. Anyway as you can see you can do it either way I did it or you could, as you suggest, just have a normal set of partitions on your new RAID1 disk. NB. When I set up my original layout I did that as a new install using the Devuan installer in expert mode (this was soe years ago), albeit I then found the partitioning stage somewhat confusing as you have to first create identical linux-raid members on the two disks first and then assemble them into a raid array. -- Marjorie _______________________________________________ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng