Lesson 5.1: Create, mount, unmount, and use vfat, ext4, and xfs file systems
Created partition and mount folders
[root@serverB ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
sr0 11:0 1 1024M 0 rom
nvme0n1 259:0 0 25G 0 disk
├─nvme0n1p1 259:1 0 600M 0 part /boot/efi
├─nvme0n1p2 259:2 0 1G 0 part /boot
└─nvme0n1p3 259:3 0 18.4G 0 part
├─cs-root 253:0 0 16.4G 0 lvm /
└─cs-swap 253:1 0 2G 0 lvm [SWAP]
nvme0n2 259:4 0 5G 0 disk
nvme0n3 259:5 0 5G 0 disk
nvme0n4 259:6 0 5G 0 disk
[root@serverB ~]#
[root@serverB ~]# gdisk /dev/nvme0n2
GPT fdisk (gdisk) version 1.0.7
Partition table scan:
MBR: protective
BSD: not present
APM: not present
GPT: present
Found valid GPT with protective MBR; using GPT.
Command (? for help): n
Partition number (1-128, default 1):
First sector (34-10485726, default = 2048) or {+-}size{KMGTP}:
Last sector (2048-10485726, default = 10485726) or {+-}size{KMGTP}: +512M
Current type is 8300 (Linux filesystem)
Hex code or GUID (L to show codes, Enter = 8300):
Changed type of partition to 'Linux filesystem'
Command (? for help): n
Partition number (2-128, default 2):
First sector (34-10485726, default = 1050624) or {+-}size{KMGTP}:
Last sector (1050624-10485726, default = 10485726) or {+-}size{KMGTP}: +512M
Current type is 8300 (Linux filesystem)
Hex code or GUID (L to show codes, Enter = 8300):
Changed type of partition to 'Linux filesystem'
Command (? for help): n
Partition number (3-128, default 3):
First sector (34-10485726, default = 2099200) or {+-}size{KMGTP}:
Last sector (2099200-10485726, default = 10485726) or {+-}size{KMGTP}: +512M
Current type is 8300 (Linux filesystem)
Hex code or GUID (L to show codes, Enter = 8300):
Changed type of partition to 'Linux filesystem'
Command (? for help): p
Disk /dev/nvme0n2: 10485760 sectors, 5.0 GiB
Model: VMware Virtual NVMe Disk
Sector size (logical/physical): 512/512 bytes
Disk identifier (GUID): 76D2C6D1-BCA4-4C90-A69E-9BA1198EDAB3
Partition table holds up to 128 entries
Main partition table begins at sector 2 and ends at sector 33
First usable sector is 34, last usable sector is 10485726
Partitions will be aligned on 2048-sector boundaries
Total free space is 7339965 sectors (3.5 GiB)
Number Start (sector) End (sector) Size Code Name
1 2048 1050623 512.0 MiB 8300 Linux filesystem
2 1050624 2099199 512.0 MiB 8300 Linux filesystem
3 2099200 3147775 512.0 MiB 8300 Linux filesystem
Command (? for help): w
Final checks complete. About to write GPT data. THIS WILL OVERWRITE EXISTING
PARTITIONS!!
Do you want to proceed? (Y/N): y
OK; writing new GUID partition table (GPT) to /dev/nvme0n2.
The operation has completed successfully.
[root@serverB ~]#
[root@serverB ~]# partprobe /dev/nvme0n2
[root@serverB ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
sr0 11:0 1 1024M 0 rom
nvme0n1 259:0 0 25G 0 disk
├─nvme0n1p1 259:1 0 600M 0 part /boot/efi
├─nvme0n1p2 259:2 0 1G 0 part /boot
└─nvme0n1p3 259:3 0 18.4G 0 part
├─cs-root 253:0 0 16.4G 0 lvm /
└─cs-swap 253:1 0 2G 0 lvm [SWAP]
nvme0n2 259:4 0 5G 0 disk
├─nvme0n2p1 259:10 0 512M 0 part
├─nvme0n2p2 259:11 0 512M 0 part
└─nvme0n2p3 259:12 0 512M 0 part
nvme0n3 259:5 0 5G 0 disk
nvme0n4 259:6 0 5G 0 disk
[root@serverB ~]# cd /mnt
[root@serverB mnt]# mkdir xfs_dir
[root@serverB mnt]# mkdir ext4_dir
[root@serverB mnt]# mkdir vfat_dir
[root@serverB mnt]# cdMake filesystems
# XFS
[root@serverB ~]# mkfs -t xfs /dev/nvme0n2p1
meta-data=/dev/nvme0n2p1 isize=512 agcount=4, agsize=32768 blks
= sectsz=512 attr=2, projid32bit=1
= crc=1 finobt=1, sparse=1, rmapbt=0
= reflink=1 bigtime=1 inobtcount=1 nrext64=0
data = bsize=4096 blocks=131072, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0, ftype=1
log =internal log bsize=4096 blocks=16384, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
# EXT4
[root@serverB ~]# mkfs -t ext4 /dev/nvme0n2p2
mke2fs 1.46.5 (30-Dec-2021)
Creating filesystem with 131072 4k blocks and 32768 inodes
Filesystem UUID: b7314a68-8555-494c-b5bb-cd85170be584
Superblock backups stored on blocks:
32768, 98304
Allocating group tables: done
Writing inode tables: done
Creating journal (4096 blocks): done
Writing superblocks and filesystem accounting information: done
# VFAT
[root@serverB ~]# mkfs -t vfat /dev/nvme0n2p3
mkfs.fat 4.2 (2021-01-31)
[root@serverB ~]# blkid /dev/nvme0n2p1
/dev/nvme0n2p1: UUID="b5771d68-b344-4242-a8da-d3c81b23b898" TYPE="xfs" PARTLABEL="Linux filesystem" PARTUUID="149f8956-3ba9-4e3d-b54e-7bfed0f5e5e0"
[root@serverB ~]# blkid /dev/nvme0n2p2
/dev/nvme0n2p2: UUID="b7314a68-8555-494c-b5bb-cd85170be584" TYPE="ext4" PARTLABEL="Linux filesystem" PARTUUID="71268420-4bcd-4cbc-a16c-0a59f1bd96e3"
[root@serverB ~]# blkid /dev/nvme0n2p3
/dev/nvme0n2p3: UUID="9632-72E6" TYPE="vfat" PARTLABEL="Linux filesystem" PARTUUID="7415dae1-4e49-4637-b4f8-ff96594bd396"Mount
[root@serverB ~]# vim /etc/fstab
[root@serverB ~]# tail -3 /etc/fstab
/dev/nvme0n2p1 /mnt/xfs_dir xfs defaults 0 0
/dev/nvme0n2p2 /mnt/ext4_dir ext4 defaults 0 0
/dev/nvme0n2p3 /mnt/vfat_dir vfat defaults 0 0
[root@serverB ~]# systemctl daemon-reload
[root@serverB ~]# mount -a
[root@serverB ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
sr0 11:0 1 1024M 0 rom
nvme0n1 259:0 0 25G 0 disk
├─nvme0n1p1 259:1 0 600M 0 part /boot/efi
├─nvme0n1p2 259:2 0 1G 0 part /boot
└─nvme0n1p3 259:3 0 18.4G 0 part
├─cs-root 253:0 0 16.4G 0 lvm /
└─cs-swap 253:1 0 2G 0 lvm [SWAP]
nvme0n2 259:4 0 5G 0 disk
├─nvme0n2p1 259:10 0 512M 0 part /mnt/xfs_dir
├─nvme0n2p2 259:11 0 512M 0 part /mnt/ext4_dir
└─nvme0n2p3 259:12 0 512M 0 part /mnt/vfat_dir
nvme0n3 259:5 0 5G 0 disk
nvme0n4 259:6 0 5G 0 disk