I search to automatize my partitioning on ubuntu but i fail to have my partition like this diagram below and i don't understand all parameters i need in preseed documentation. https://help.ubuntu.com/lts/installation-guide/s390x/apbs04.html#preseed-partman
root@linux:/opt/ansible# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 300M 0 disk
└─sda1 8:1 0 298M 0 part /boot
sdb 8:16 0 10G 0 disk
├─rootvg-root 254:0 0 3G 0 lvm /
├─rootvg-swap 254:1 0 1G 0 lvm [SWAP]
├─rootvg-tmp 254:3 0 512M 0 lvm /tmp
└─rootvg-var 254:4 0 512M 0 lvm /var
sdc 8:32 0 5G 0 disk
└─datavg-opt 254:2 0 2G 0 lvm /opt
sr0 11:0 1 1024M 0 rom
This is the command line i type without preseed:
pvcreate /dev/sdb
pvcreate /dev/sdc
vgcreate -s 256m rootvg /dev/sdb
vgcreate -s 256m rootvg /dev/sdc
vgcreate --size 3g -n root rootvg
lvcreate --size 512m -n tmp rootvg
lvcreate --size 2g -n swap rootvg
I have 3 disk :
# Alternatively, you may specify a disk to partition. If the system has only
# one disk the installer will default to using that, but otherwise the device
# name must be given in traditional, non-devfs format (so e.g. /dev/sda
# and not e.g. /dev/discs/disc0/disc).
# For example, to use the first SCSI/SATA hard disk:
#d-i partman-auto/disk string /dev/sda
# In addition, you'll need to specify the method to use.
# The presently available methods are:
# - regular: use the usual partition types for your architecture
# - lvm: use LVM to partition the disk
# - crypto: use LVM within an encrypted partition
d-i partman-auto/method string lvm
# If one of the disks that are going to be automatically partitioned
# contains an old LVM configuration, the user will normally receive a
# warning. This can be preseeded away...
d-i partman-lvm/device_remove_lvm boolean true
# The same applies to pre-existing software RAID array:
d-i partman-md/device_remove_md boolean true
# And the same goes for the confirmation to write the lvm partitions.
d-i partman-lvm/confirm boolean true
d-i partman-lvm/confirm_nooverwrite boolean true
d-i partman-auto-lvm/guided_size string 300m
d-i partman-auto-lvm/guided_size string 10GB
d-i partman-auto-lvm/guided_size string 5GB
d-i partman-auto/choose_recipe select atomic
And after i don't undestand how to do for my case
