Linux系统扩容根目录磁盘空间的操作方法

àì夳堔傛蜴生んèń 2023-09-24 10:16 202阅读 0赞

  [root@node-002 ~]# fdisk /dev/vda

  命令(输入 m 获取帮助): m

  命令操作

  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)

  命令(输入 m 获取帮助): n #new 新分区

  Partition type:

  p primary (1 primary, 1 extended, 2 free)

  l logical (numbered from 5)

  Select (default p): p #选择主分区

  分区号 (1-4,默认为 3): 3 #分区序号

  起始 sector (499712-314572799,默认为 499712): #分区开始回车默认

  将使用默认值 499712

  Last sector, +扇区 or +size{K,M,G} (499712-501757,默认为 501757):

  将使用默认值 501757

  命令(输入 m 获取帮助): n #new 新分区

  Partition type:

  p primary (2 primary, 1 extended, 1 free)

  l logical (numbered from 5)

  Select (default p): p #选择主分区

  Selected partition 4 #分区序号

  起始 sector (62912512-314572799,默认为 62912512): #分区开始回车默认

  将使用默认值 62912512

  Last sector, +扇区 or +size{K,M,G} (62912512-314572799,默认为 314572799):

  将使用默认值 314572799

  命令(输入 m 获取帮助): t #修改分区格式

  分区号 (1-5): 4 #修改分区号

  Hex code (type L to list codes): 8e #格式选择8e linux LVM

  Changed system type of partition 4 to 8e (Linux LVM)

  命令(输入 m 获取帮助): p #显示分区信息

  Disk /dev/sda: 161.1 GB, 161061273600 bytes

  16 heads, 63 sectors/track, 312076 cylinders, total 314572800 sectors

  Units =扇区 of 1 * 512=512 bytes

  Sector size (logical/physical): 512 bytes / 512 bytes

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

  Disk identifier: 0x0001a023

  设备 启动 起点 终点 块数 Id 系统

  /dev/sda1 * 2048 499711 248832 83 Linux

  /dev/sda2 501758 62912511 31205377 5 扩展

  /dev/sda3 499712 501757 1023 83 Linux

  Partition table entries are not in disk order

  命令(输入 m 获取帮助): w #保存信息

  The partition table has been altered!

  Calling ioctl() to re-read partition table.

  WARNING: Re-reading the partition table failed with error 16: 设备或资源忙.

  The kernel still uses the old table. The new table will be used at

  the next reboot or after you run partprobe(8) or kpartx(8)

  Syncing disks.

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