Parted – Extended/Logical Partition with Parted on CentOS

centoscentos7partedpartition

I have already partition/installed server and its partition is like following

# parted -l
Model: ATA TOSHIBA THNSNJ51 (scsi)
Disk /dev/sda: 512GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags:
Number  Start   End    Size    Type      File system  Flags
 1      1049kB  324GB  324GB   primary
 2      324GB   405GB  80.5GB  primary                lvm
 3      405GB   406GB  1074MB  primary   xfs          boot
 4      406GB   512GB  106GB   extended
 5      406GB   512GB  106GB   logical                lvm

Following is output of lsblk

# lsblk
NAME                              MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
sda                                 8:0    0  477G  0 disk
├─sda1                              8:1    0  302G  0 part
├─sda2                              8:2    0   75G  0 part
├─sda3                              8:3    0    1G  0 part /boot
├─sda4                              8:4    0    1K  0 part
└─sda5                              8:5    0   99G  0 part
  ├─cl_m1-root                    253:0    0   89G  0 lvm  /
  └─cl_m1-swap                    253:1    0   10G  0 lvm  [SWAP]

blkid command is saying this /dev/sda5 as Type LVM2_member, which i couldnt understand

# blkid
/dev/sdb1: UUID="2019-03-18-19-33-14-00" LABEL="my" TYPE="udf" PTTYPE="dos"
/dev/sda3: UUID="eaf7cef9-4107-4d30-ac51-80e678897888" TYPE="xfs"
/dev/sda5: UUID="7x2wp0-KTva-jJ7y-copN-brui-jzJC-6gVqJc" TYPE="LVM2_member"

Now i want to create same partition with parted command but i dont know how to partition last part sda4 and sda5(/ and swap), I tried below

# setup partition table on disk
    parted -s /dev/sda mklabel msdos
    parted -s /dev/sda mkpart primary    1049k  324G 
    parted -s /dev/sda mkpart primary    324G   405G
    parted -s /dev/sda mkpart primary    405G   406G
    parted -s /dev/sda mkpart extended   406G   512G
    parted -s set 2 lvm  on
    parted -s set 3 boot on
    parted -s set 4 lvm  on

I am new to sys admin stuff, excuse if i missed some obvious point

Best Answer

Read Logical Volume Manager documentation. The partitions flagged as lvm are physical volumes, containing logical volumes.

Partitioning is not needed for most LVM using systems. Let the installer carve out a /boot partition, then create and extend volume groups with entire disks.

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