Linux运维系统工程师系列---21

磁盘管理---分区---parted命令 实验举例：

[root@server254 devices]# parted /dev/sdb
(parted) help

(parted) print
Model: VMware, VMware Virtual S (scsi)
Disk /dev/sdb: 42.9GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Number Start End Size Type File system Flags
1 32.3kB 214MB 214MB primary
(parted) print
Model: VMware, VMware Virtual S (scsi)
Disk /dev/sdb: 42.9GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Number Start End Size Type File system Flags
(parted) mkpart

创建分区 ：
Partition type? primary/extended? primary
File system type? [ext2]? ext4
Start? 1
End? 200M
(parted) print
Model: VMware, VMware Virtual S (scsi)
Disk /dev/sdb: 42.9GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Number Start End Size Type File system Flags
1 1049kB 200MB 199MB primary
(parted) mkpart
Partition type? primary/extended? primary
File system type? [ext2]? ext4
Start?
Start? 200M
End? 2000M
(parted) print
Model: VMware, VMware Virtual S (scsi)
Disk /dev/sdb: 42.9GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Number Start End Size Type File system Flags
1 1049kB 200MB 199MB primary
2 200MB 2000MB 1799MB primary
(parted) mkpart
Partition type? primary/extended? p
File system type? [ext2]? ext4
Start? 2000M
End? 2013M
(parted) print
Model: VMware, VMware Virtual S (scsi)
Disk /dev/sdb: 42.9GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Number Start End Size Type File system Flags
1 1049kB 200MB 199MB primary
2 200MB 2000MB 1799MB primary
3 2000MB 2013MB 13.6MB primary
Partition type? [logical]? logical
File system type? [ext2]? ext4
Start? 2015M
End? 2200M
Warning: The resulting partition is not properly aligned for best performance.
Ignore/Cancel? Ignore
(parted) print
Model: VMware, VMware Virtual S (scsi)
Disk /dev/sdb: 42.9GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Number Start End Size Type File system Flags
1 1049kB 200MB 199MB primary
2 200MB 2000MB 1799MB primary
3 2000MB 2013MB 13.6MB primary
4 2015MB 10.0GB 7985MB extended lba
5 2015MB 2200MB 185MB logical
(parted) rm 5
(parted) quit

[root@server254 devices]# fdisk -l /dev/sdb

Disk /dev/sdb: 42.9 GB, 42949672960 bytes
255 heads, 63 sectors/track, 5221 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000b6e12
Device Boot Start End Blocks Id System
/dev/sdb1 1 25 194560 83 Linux
Partition 1 does not end on cylinder boundary.
/dev/sdb2 25 244 1757184 83 Linux
Partition 2 does not end on cylinder boundary.
/dev/sdb3 244 245 13312 83 Linux
Partition 3 does not end on cylinder boundary.
/dev/sdb4 246 1216 7797760 f W95 Ext'd (LBA)