Linux for large-capacity disk partitioning

1. Use the fdisk-l command to view the disks that can be partitioned

2. Partitioning using the parted command

Parted/dev/sdb

3. Create a partitioned table

Mklabel

Disk type Select GPT, warning Select Yes to erase disk original information

4. Use the Print command to view the current partition status

5. Create a partition using the Mkpart command

Partition name Optional

File system on request

The start end is on demand, and ignore ignores the warning,,, where the end point can use a percentage, such as 100%, to represent the remaining space used

Attention

When dividing the first partition, it is best to use partition alignment, otherwise there will be a warning, the alignment method (may lose a few m capacity)

View Current Disk parameters

Use the formula (Optimal_io_size+alignment_offset)/physical_block_size to calculate the start of the first partition

It is: (1835008+0)/512 = 3584

The parted parameter, the first starting position, can be 3584s

Also, be aware that,,, partitions are partitioned as far as possible,,, such as 3584s-32% 32%-50% 50%-100%,,, system automatically aligns

6. Use the Q command to exit

==================

Mount the partition.

Write UUID to/etc/fstab

$ ' | Xargs Echo >>/etc/fstab

Modify Vi/etc/fstab

Modify in the format

Mount with Mount-a

viewing partitions using Mount

[[Email protected] ~]#mount-a[[Email protected] ~]#MountSysfs on/sys type SYSFS (rw,nosuid,nodev,noexec,relatime,seclabel) proc on/proc Type proc (rw,nosuid,nodev,noexec,relatime) Devtmpfs on/dev Type Devtmpfs (rw,nosuid,seclabel,size=131910692k,nr_inodes=32977673,mode=755) Securityfs on/sys/kernel/Security Type SECURITYFS (rw,nosuid,nodev,noexec,relatime) Tmpfs on/dev/SHM type TMPFS (Rw,nosuid,nodev,seclabel) devpts on/dev/pts type devpts (rw,nosuid,noexec,relatime,seclabel,gid=5,mode=620,ptmxmode=000) Tmpfs on/run type TMPFS (rw,nosuid,nodev,seclabel,mode=755) Tmpfs on/sys/fs/cgroup type TMPFS (ro,nosuid,nodev,noexec,seclabel,mode=755) Cgroup on/SYS/FS/CGROUP/SYSTEMD type Cgroup (rw,nosuid,nodev,noexec,relatime,seclabel,xattr,release_agent=/usr/lib/systemd /systemd-cgroups-agent,name=systemd) Pstore on/sys/fs/pstore type Pstore (rw,nosuid,nodev,noexec,relatime) Efivarfs on/sys/firmware/efi/efivars type Efivarfs (rw,nosuid,nodev,noexec,relatime) Cgroup on/sys/fs/cgroup/devices Type Cgroup (rw,nosuid,nodev,noexec,relatime,seclabel,devices) Cgroup on/sys/fs/cgroup/Freezer type Cgroup (rw,nosuid,nodev,noexec,relatime,seclabel,freezer) Cgroup on/sys/fs/cgroup/PIDs type Cgroup (rw,nosuid,nodev,noexec,relatime,seclabel,pids) Cgroup on/sys/fs/cgroup/cpuset type Cgroup (rw,nosuid,nodev,noexec,relatime,seclabel,cpuset) Cgroup on/sys/fs/cgroup/Cpu,cpuacct type Cgroup (RW,NOSUID,NODEV,NOEXEC,RELATIME,SECLABEL,CPUACCT,CPU) Cgroup on/sys/fs/cgroup/Net_cls,net_prio type Cgroup (rw,nosuid,nodev,noexec,relatime,seclabel,net_prio,net_cls) Cgroup on/sys/fs/cgroup/Memory Type Cgroup (rw,nosuid,nodev,noexec,relatime,seclabel,memory) Cgroup on/sys/fs/cgroup/Blkio type Cgroup (Rw,nosuid,nodev,noexec,relatime,seclabel,blkio) Cgroup on/sys/fs/cgroup/hugetlb type Cgroup (rw,nosuid,nodev,noexec,relatime,seclabel,hugetlb) Cgroup on/sys/fs/cgroup/perf_event type Cgroup (rw,nosuid,nodev,noexec,relatime,seclabel,perf_event) Configfs on/sys/kernel/config type Configfs (rw,relatime)/dev/mapper/centos-root On/type XFS (rw,relatime,seclabel,attr2,inode64,logbsize=256k,sunit=512,swidth=512, Noquota) Selinuxfs on/sys/fs/selinux type SELINUXFS (rw,relatime) systemd-1 on/proc/sys/fs/binfmt_misc type AutoFS (rw,relatime,fd=33,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ ino=15691) Debugfs on/sys/kernel/Debug Type Debugfs (rw,relatime) Mqueue on/dev/mqueue type Mqueue (Rw,relatime,seclabel) Hugetlbfs on/dev/hugepages type HUGETLBFS (Rw,relatime,seclabel)/dev/sda2 on/boot type XFS (rw,relatime,seclabel,attr2,inode64,logbsize=256k,sunit=512,swidth=512, Noquota)/DEV/SDA1 on/boot/efi type VFAT (Rw,relatime,fmask=0077,dmask=0077,codepage=437,iocharset=ascii,shortname=winnt, errors=remount-ro)/dev/mapper/centos-home on/home type XFS (rw,relatime,seclabel,attr2,inode64,logbsize=256k,sunit=512,swidth=512, Noquota) Tmpfs on/run/user/0 type TMPFS (rw,nosuid,nodev,relatime,seclabel,size=26384664k,mode=700)/DEV/SDB1 on/u01 type XFS (rw,relatime,seclabel,attr2,inode64,logbsize=256k,sunit=512,swidth=3584, Noquota)/DEV/SDB2 on/u02 type XFS (rw,relatime,seclabel,attr2,inode64,logbsize=256k,sunit=512,swidth=3584, Noquota)/DEV/SDB3 on/u03 type XFS (Rw,relatime,seclabel,attr2,inode64,logbsize=256k,sunit=512,swidth=3584,noquota)

View the last 3, which is the Mount success

Linux for large-capacity disk partitioning