How Would I go about (in a snippet) creating a recipe/snippet that creates two raid/pv/lv off of two disks? Basically I want it to look like this: /dev/sda (800gb) ---200GB Raid-1/PV-root/LV-root =/dev/md0 ---600GB Raid-1/PV-wite/LV-write =/dev/md1 /dev/sdb (800GB) ---200GB Raid/PV-root/LV-Root/Raid 1 =/dev/mdo ---600GB Raid-1/PV-write/LV-write =/dev/md1 FYi, we're using software raid, but I'm only wanting to utilize the first two disks for the raid volumes, and have two raid "partitions" created, along with 2 PV's and 2 LV's, so we have a /dev/md0 bootable drive that's 200GB and a "write" drive that's 600GB and /dev/md1. I have no problem doing this manually through the installer, just wondering how to automate it? Whenever I automate it, it allocates all 800GB on each disk for RAID 1, and just created a /dev/md0. Here's my current snippet: (which I know is wrong) # Disk Partitioning # Use LVM, and wipe out anything that already exists d-i partman/early_command string vgs --separator=: --noheadings | cut -f1 -d: | while read vg ; do vgchange -an \$vg ; done ; pvs --separator=: --noheadings | c ut -f1 -d: | while read pv ; do pvremove -ff -y \$pv ; done; mdadm --stop --forc e /dev/md*; /bin/dd if=/dev/zero of=/dev/sda bs=512 count=1; /bin/dd if=/dev/zer o of=/dev/sdb bs=512 count=1; /bin/dd if=/dev/zero of=/dev/sdc bs=512 count=1; / bin/dd if=/dev/zero of=/dev/sdd bs=512 count=1; /bin/dd if=/dev/zero of=/dev/sde bs=512 count=1; /bin/dd if=/dev/zero of=/dev/sdf bs=512 count=1; /bin/dd if=/de v/zero of=/dev/sdg bs=512 count=1; /bin/dd if=/dev/zero of=/dev/sdh bs=512 count =1; # Disk Partitioning d-i partman-basicfilesystems/choose_label string gpt d-i partman-basicfilesystems/default_label string gpt d-i partman-partitioning/choose_label string gpt d-i partman-partitioning/default_label string gpt d-i partman/choose_label string gpt d-i partman/default_label string gpt d-i partman-lvm/device_remove_lvm boolean true d-i partman-md/device_remove_md boolean true d-i partman-lvm/confirm boolean true d-i partman-auto/disk string /dev/sda /dev/sdb d-i partman-auto/method string raid d-i partman-auto-lvm/new_vg_name string vg0 d-i partman-auto-lvm/guided_size string 50% d-i partman-auto/expert_recipe string \ efi-lvm :: \ 256 10 256 free \ \$iflabel{ gpt } \ method{ biosgrub } \ \$primary{ } \ \$lvmignore{ } \ format{ } \ .\ 50% 30 50% raid \ \$gptonly{ } \ \$lvmignore{ } \ \$primary{ } \ method{ raid } \ .\ 140000 50 140000 ext4 \ \$defaultignore{ } \ \$lvmok{ } \ lv_name{ root } \ method{ format } \ format{ } \ use_filesystem{ } \ filesystem{ ext4 } \ mountpoint{ / } \ label{ Root } \ .\ 6000 40 6000 swap \ \$defaultignore{ } \ \$lvmok{ } \ lv_name{ swap } \ method{ swap } \ format{ } \ . d-i partman-auto-raid/recipe string \ 1 2 0 lvm - /dev/sda2#/dev/sdb2 \ . d-i partman-md/confirm boolean true d-i partman-partitioning/confirm_write_new_label boolean true d-i partman/choose_partition select Finish partitioning and write changes to disk d-i partman/confirm boolean true d-i partman-md/confirm_nooverwrite boolean true d-i partman/confirm_nooverwrite boolean true d-i mdadm/boot_degraded boolean true Any help? This is on Ubuntu Trusty 14.04 -- Jen