SWAP分区
SWAP
[root@cloud ~]# fdisk /dev/sdb Command (m for help): d Selected partition 1 Command (m for help): w The partition table has been altered!
删除磁盘分区
[root@cloud ~]# fdisk /dev/sdb 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 for help): n Command action e extended p primary partition (1-4) p Partition number (1-4): 1 First cylinder (1-5221, default 1): Using default value 1 Last cylinder, +cylinders or +size{K,M,G} (1-5221, default 5221): +2G Command (m for help): 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 Extended42 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 bootable50 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/M9f 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-Drivea6 OpenBSD ef EFI (FAT-12/16/ 10 OPUS56 Golden Bow a7 NeXTSTEPf0 Linux/PA-RISC b 11 Hidden FAT125c 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 FAT1664 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 bootff BBT 1e Hidden W95 FAT1 Hex code (type L to list codes): 82 Changed system type of partition 1 to 82 (Linux swap / Solaris) Command (m for help): w The partition table has been altered! Calling ioctl() to re-read partition table. Syncing disks.
创建磁盘分区
[root@cloud ~]# lsblk NAMEMAJ:MIN RM SIZE RO TYPE MOUNTPOINT sr0 11:01 1024M 0 rom sda 8:00 10G 0 disk ├─sda18:10 500M 0 part /boot └─sda28:20 9.5G 0 part ├─vg_cloud-lv_root (dm-0) 253:00 7.6G 0 lvm / └─vg_cloud-lv_swap (dm-1) 253:102G 0 lvm [SWAP] sdb 8:16 0 40G 0 disk ├─sdb18:17 02G 0 part └─sdb28:18 0 38G 0 part
查看磁盘结构
[root@cloud ~]# mkswap -f /dev/sdb1 Setting up swapspace version 1, size = 2104476 KiB no label, UUID=13c816d6-9722-434b-962f-a3a7669cfd90
初始化分区
[root@cloud ~]# vi /etc/fstab /dev/sdb1 swapswapdefaults0 0
开机挂载分区
[root@cloud ~]# swapon /dev/sdb1
激活交换分区
[root@cloud ~]# lsblk NAMEMAJ:MIN RM SIZE RO TYPE MOUNTPOINT sr0 11:01 1024M 0 rom sda 8:00 10G 0 disk ├─sda18:10 500M 0 part /boot └─sda28:20 9.5G 0 part ├─vg_cloud-lv_root (dm-0) 253:00 7.6G 0 lvm / └─vg_cloud-lv_swap (dm-1) 253:102G 0 lvm [SWAP] sdb 8:16 0 40G 0 disk ├─sdb18:17 02G 0 part [SWAP] └─sdb28:18 0 38G 0 part /data
原创文章,作者:双庆 李,如若转载,请注明出处:http://www.178linux.com/18000