xfs_repair -n /dev/sdb
centos 硬盘 修复
sudo parted -lsudo 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 xfs2
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 sdb13
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% /new4
mkfs -t xfs /dev/sdba5
fdisk /dev/sdb
Centos7 xfs分区格式化挂载
https://www.cnblogs.com/sfissw/p/7900284.html
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 Linux3
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
