[root@myprecious ~]# fdisk /dev/sdb Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel Building a new DOS disklabel with disk identifier 0x4cb24dcf. Changes will remain in memory only, until you decide to write them. After that, of course, the previous content won't be recoverable. Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite) WARNING: DOS-compatible mode is deprecated. It's strongly recommended to switch off the mode (command'c') and change display units to sectors (command'u'). Command (m forhelp): m Command action a toggle a bootable flag b edit bsd disklabel c toggle the dos compatibility flag d delete a partition l list known partition types m print this menu n add a new partition o create a new empty DOS partition table p print the partition table q quit without saving changes s create a new empty Sun disklabel t change a partition\'s system id u change display/entry units v verify the partition table w write table to disk and exit x extra functionality (experts only) Command (m forhelp): n Command action e extended p primary partition (1-4) p Partition number (1-4): 1 First cylinder (1-624152, default 1): Using default value 1 Last cylinder, +cylinders or +size{K,M,G} (1-624152, default 624152): Using default value 624152 Command (m forhelp): t Selected partition 1 Hex code (type L to list codes): L 0 Empty 24 NEC DOS 81 Minix / old Lin bf Solaris 1 FAT12 39 Plan 9 82 Linux swap / So c1 DRDOS/sec (FAT- 2 XENIX root 3c PartitionMagic 83 Linux c4 DRDOS/sec (FAT- 3 XENIX usr 40 Venix 80286 84 OS/2 hidden C: c6 DRDOS/sec (FAT- 4 FAT16 <32M 41 PPC PReP Boot 85 Linux extended c7 Syrinx 5 Extended 42 SFS 86 NTFS volume set da Non-FS data 6 FAT16 4d QNX4.x 87 NTFS volume set db CP/M / CTOS / . 7 HPFS/NTFS 4e QNX4.x 2nd part 88 Linux plaintext de Dell Utility 8 AIX 4f QNX4.x 3rd part 8e Linux LVM df BootIt 9 AIX bootable 50 OnTrack DM 93 Amoeba e1 DOS access a OS/2 Boot Manag 51 OnTrack DM6 Aux 94 Amoeba BBT e3 DOS R/O b W95 FAT32 52 CP/M 9f BSD/OS e4 SpeedStor c W95 FAT32 (LBA) 53 OnTrack DM6 Aux a0 IBM Thinkpad hi eb BeOS fs e W95 FAT16 (LBA) 54 OnTrackDM6 a5 FreeBSD ee GPT f W95 Ext\'d (LBA) 55 EZ-Drive a6 OpenBSD ef EFI (FAT-12/16/ 10 OPUS 56 Golden Bow a7 NeXTSTEP f0 Linux/PA-RISC b 11 Hidden FAT12 5c Priam Edisk a8 Darwin UFS f1 SpeedStor 12 Compaq diagnost 61 SpeedStor a9 NetBSD f4 SpeedStor 14 Hidden FAT16 <3 63 GNU HURD or Sys ab Darwin boot f2 DOS secondary 16 Hidden FAT16 64 Novell Netware af HFS / HFS+ fb VMware VMFS 17 Hidden HPFS/NTF 65 Novell Netware b7 BSDI fs fc VMware VMKCORE 18 AST SmartSleep 70 DiskSecure Mult b8 BSDI swap fd Linux raid auto 1b Hidden W95 FAT3 75 PC/IX bb Boot Wizard hid fe LANstep 1c Hidden W95 FAT3 80 Old Minix be Solaris boot ff BBT 1e Hidden W95 FAT1 Hex code (type L to list codes): 8e Changed system type of partition 1 to 8e (Linux LVM) Command (m forhelp): p Disk /dev/sdb: 53.7 GB, 53687091200 bytes 16 heads, 63 sectors/track, 624152 cylinders Units = cylinders of 1008 * 512 = 516096 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x4cb24dcf Device Boot Start End Blocks Id System /dev/sdb1 1 624152 314572576+ 8e Linux LVM Command (m forhelp): w The partition table has been altered! Calling ioctl() to re-read partition table. Syncing disks. [root@myprecious ~]#
[root@myprecious ~]# pvdisplay --- Physical volume --- PV Name /dev/sda2 VG Name centos_myprecious PV Size 9.51 GiB / not usable 3.00 MiB Allocatable yes (but full) PE Size 4.00 MiB Total PE 2434 Free PE 0 Allocated PE 2434 PV UUID 0bE8O8-syyl-TSyE-p9Bv-sZEJ-3GkE-vNC4XB [root@myprecious ~]# pvcreate /dev/sdb1 Physical volume "/dev/sdb1" successfully created [root@myprecious ~]# pvdisplay --- Physical volume --- PV Name /dev/sda2 VG Name centos_myprecious PV Size 9.51 GiB / not usable 3.00 MiB Allocatable yes (but full) PE Size 4.00 MiB Total PE 2434 Free PE 0 Allocated PE 2434 PV UUID 0bE8O8-syyl-TSyE-p9Bv-sZEJ-3GkE-vNC4XB "/dev/sdb1" is a new physical volume of "53.7 GiB" --- NEW Physical volume --- PV Name /dev/sdb1 VG Name PV Size 53.7 GiB Allocatable NO PE Size 0 Total PE 0 Free PE 0 Allocated PE 0 PV UUID 8Z7hoj-Ub4d-xLr3-z7ti-Z5zM-oVTv-TuLtv7 [root@myprecious ~]#
[root@myprecious ~]# vgdisplay --- Volume group --- VG Name centos_myprecious System ID Format lvm2 Metadata Areas 2 Metadata Sequence No 5 VG Access read/write VG Status resizable MAX LV 0 Cur LV 2 Open LV 2 Max PV 0 Cur PV 2 Act PV 2 VG Size 59.50 GiB PE Size 4.00 MiB Total PE 15233 Alloc PE / Size 13065 / 51.04 GiB Free PE / Size 2168 / 8.47 GiB VG UUID jvcc7L-quO1-MQOz-KDX3-v4QN-ES9G-q4h7H7 [root@myprecious ~]# vgextend centos_myprecious /dev/sdb1 Physical volume "/dev/sdb1" successfully created Volume group "centos_myprecious" successfully extended [root@myprecious ~]#
[root@myprecious ~]# lvdisplay --- Logical volume --- LV Path /dev/centos_myprecious/root LV Name root VG Name centos_myprecious LV UUID KqVmPb-MNpe-VPmH-ato8-aeVU-JbOz-HNgG0M LV Write Access read/write LV Creation host, time myprecious, 2017-02-20 14:35:34 +0800 LV Status available # open 1 LV Size 8.47 GiB Current LE 2168 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 8192 Block device 253:0 --- Logical volume --- LV Path /dev/centos_myprecious/swap LV Name swap VG Name centos_myprecious LV UUID 4HGA1K-1bYu-Vvmx-j70O-l0U7-NwvG-etzOF6 LV Write Access read/write LV Creation host, time myprecious, 2017-02-20 14:35:33 +0800 LV Status available # open 2 LV Size 1.00 GiB Current LE 256 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 8192 Block device 253:1
