Why am I getting inconsistent/conflicting pictures of the DATA partitions that were created in the CentOS 7 installation process when I use df -T -h
, parted ... print
, and fdisk -l
? In case it matters, used xfs file system because that was the default.
The Background of the process is:
During a recent installation of CentOS 7, I chose Manual Partitioning in the Installation Destination part of the process. The tutorial in this link contains screen shots illustrating the installation process, and the screen in the process where the DATA partitions are created is shown below (from the same tutorial).
(source: tecmint.com)
In the above screen shot, my installation wizard automatically created a /home
DATA partition. I shrunk the auto-created /home
partition, and created four new 300 GB DATA partitions called /public
, /vpn
, /data
, and /test
using the screen shown in the screen shot, and I then completed the installation.
df -T -h
results:
In the resulting installation, typing df -T -h
results in:
[root@localhost ~]# df -T -h
Filesystem Type Size Used Avail Use% Mounted on
/dev/mapper/centos-root xfs 50G 1016M 49G 2% /
devtmpfs devtmpfs 3.8G 0 3.8G 0% /dev
tmpfs tmpfs 3.8G 0 3.8G 0% /dev/shm
tmpfs tmpfs 3.8G 17M 3.8G 1% /run
tmpfs tmpfs 3.8G 0 3.8G 0% /sys/fs/cgroup
/dev/sda2 xfs 494M 139M 355M 29% /boot
/dev/mapper/centos-home xfs 605G 33M 605G 1% /home
/dev/sda1 vfat 200M 9.8M 191M 5% /boot/efi
/dev/mapper/centos-01 xfs 280G 33M 280G 1% /public
/dev/mapper/centos-02 xfs 280G 33M 280G 1% /data
/dev/mapper/centos-03 xfs 280G 33M 280G 1% /test
/dev/mapper/centos-00 xfs 280G 33M 280G 1% /vpn
**parted ... quit
results:
However, parted does not seem to see the four new DATA partitions, as shown below:
[root@localhost ~]# parted
GNU Parted 3.1
Using /dev/sda
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) print
Model: ATA WDC WD20EZRX-00D (scsi)
Disk /dev/sda: 2000GB
Sector size (logical/physical): 512B/4096B
Partition Table: gpt
Disk Flags:
Number Start End Size File system Name Flags
1 1049kB 211MB 210MB fat16 EFI System Partition boot
2 211MB 735MB 524MB xfs
3 735MB 1912GB 1911GB
fdisk -l
results:
The fdisk -l
results seem to be a blend of the parted
and df
results shown above, but here treating the four new partitions as a separate category:
[root@localhost ~]# fdisk -l
WARNING: fdisk GPT support is currently new, and therefore in an experimental phase. Use at your own discretion.
Disk /dev/sda: 2000.4 GB, 2000398934016 bytes, 3907029168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk label type: gpt
# Start End Size Type Name
1 2048 411647 200M EFI System EFI System Partition
2 411648 1435647 500M Microsoft basic
3 1435648 3734071295 1.8T Microsoft basic
Disk /dev/mapper/luks-49495fd0-6120-48d9-915a-d88903765021: 1911.1 GB, 1911107354624 bytes, 3732631552 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/mapper/centos-swap: 8187 MB, 8187281408 bytes, 15990784 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/mapper/centos-root: 53.7 GB, 53687091200 bytes, 104857600 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/mapper/centos-home: 649.2 GB, 649223733248 bytes, 1268015104 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/mapper/centos-00: 300.0 GB, 299997593600 bytes, 585932800 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/mapper/centos-01: 300.0 GB, 299997593600 bytes, 585932800 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/mapper/centos-02: 300.0 GB, 299997593600 bytes, 585932800 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/mapper/centos-03: 300.0 GB, 299997593600 bytes, 585932800 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
(parted) quit