centos 硬盘 修复

xfs_repair -n /dev/sdb

centos 硬盘 修复

sudo parted -l

sudo parted -l

[localhost home]$ sudo parted -l
Model: Dell VIRTUAL DISK (scsi)
Disk /dev/sda: 1000GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags:

Number  Start   End     Size   Type     File system  Flags
 1      1049kB  525MB   524MB  primary  xfs          boot
 2      525MB   1000GB  999GB  primary               lvm


Model: ATA WDC WD20EZAZ-00G (scsi)
Disk /dev/sdb: 2000GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags:

Number  Start   End     Size    Type     File system  Flags
 1      1049kB  2000GB  2000GB  primary  ext4         boot


Model: Linux device-mapper (linear) (dm)
Disk /dev/mapper/centos-home: 912GB
Sector size (logical/physical): 512B/512B
Partition Table: loop
Disk Flags:

Number  Start  End    Size   File system  Flags
 1      0.00B  912GB  912GB  xfs


Model: Linux device-mapper (linear) (dm)
Disk /dev/mapper/centos-swap: 33.8GB
Sector size (logical/physical): 512B/512B
Partition Table: loop
Disk Flags:

Number  Start  End     Size    File system     Flags
 1      0.00B  33.8GB  33.8GB  linux-swap(v1)


Model: Linux device-mapper (linear) (dm)
Disk /dev/mapper/centos-root: 53.7GB
Sector size (logical/physical): 512B/512B
Partition Table: loop
Disk Flags:

Number  Start  End     Size    File system  Flags
 1      0.00B  53.7GB  53.7GB  xfs

2

cat /proc/partitions

major minor  #blocks  name

   8        0  976224256 sda
   8        1     512000 sda1
   8        2  975711232 sda2
 253        0   52428800 dm-0
 253        1   33030144 dm-1
 253        2  890183680 dm-2
   8       16 1953514584 sdb
   8       17 1953513472 sdb1

3

df -h

sudo mount /dev/sdb1 /new

df -h
Filesystem               Size  Used Avail Use% Mounted on
devtmpfs                  32G     0   32G   0% /dev
tmpfs                     32G  8.0K   32G   1% /dev/shm
tmpfs                     32G   26M   32G   1% /run
tmpfs                     32G     0   32G   0% /sys/fs/cgroup
/dev/mapper/centos-root   50G   49G  1.6G  97% /
/dev/mapper/centos-home  849G  600G  249G  71% /home
/dev/sda1                497M  252M  245M  51% /boot
tmpfs                    6.3G     0  6.3G   0% /run/user/0
tmpfs                    6.3G     0  6.3G   0% /run/user/1002
/dev/sdb1                1.8T   68M  1.7T   1% /new

4

mkfs -t xfs /dev/sdba

5

fdisk /dev/sdb

Centos7 xfs分区格式化挂载

https://www.cnblogs.com/sfissw/p/7900284.html

fdisk -l

fdisk -l

Disk /dev/sda: 999.7 GB, 999653638144 bytes, 1952448512 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x0002d87e

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048     1026047      512000   83  Linux
/dev/sda2         1026048  1952448511   975711232   8e  Linux LVM

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 / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/mapper/centos-swap: 33.8 GB, 33822867456 bytes, 66060288 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/mapper/centos-home: 911.5 GB, 911548088320 bytes, 1780367360 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/sdb: 2000.4 GB, 2000398934016 bytes, 3907029168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x09c1b27d

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1   *        2048  3907028991  1953513472   83  Linux

3

uname -a 
Linux localhost.localdomain 3.10.0-1062.4.1.el7.x86_64 #1 SMP Fri Oct 18 17:15:30 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

https://clonezilla.org/

使用Clonezilla(再生龙)克隆、恢复Linux系统
https://www.jianshu.com/p/72a4514751c3

cat /etc/redhat-release

CentOS Linux release 7.7.1908 (Core)

cat /proc/cpuinfo

cat /proc/cpuinfo

processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 44
model name      : Intel(R) Xeon(R) CPU           E5645  @ 2.40GHz
stepping        : 2
microcode       : 0x1f
cpu MHz         : 2394.031
cache size      : 12288 KB
physical id     : 1
siblings        : 12
core id         : 0
cpu cores       : 6
apicid          : 32
initial apicid  : 32
fpu             : yes
fpu_exception   : yes
cpuid level     : 11
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid dca sse4_1 sse4_2 popcnt aes lahf_lm ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid dtherm ida arat spec_ctrl intel_stibp flush_l1d
bogomips        : 4788.06
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management:

processor       : 1
vendor_id       : GenuineIntel
cpu family      : 6
model           : 44
model name      : Intel(R) Xeon(R) CPU           E5645  @ 2.40GHz
stepping        : 2
microcode       : 0x1f
cpu MHz         : 2394.031
cache size      : 12288 KB
physical id     : 0
siblings        : 12