Linux

Linux VM 內可調整大小的磁碟分區

  • August 2, 2019

我正在嘗試增加我的虛擬機 Ubuntu 內的磁碟大小。我使用了以下命令序列:

echo 1 > /sys/block/sda/device/rescan
fdisk /dev/sda
Command (m for help): d
Partition number (1,2, default 2): 2
Command (m for help): n
Select (default p): p

現在我看到以下內容:分開

root@proj:~# parted
GNU Parted 3.2
Using /dev/sda
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) p
Model: Msft Virtual Disk (scsi)
Disk /dev/sda: 85,9GB
Sector size (logical/physical): 512B/4096B
Partition Table: gpt
Disk Flags:

Number  Start   End     Size    File system  Name  Flags
1      1049kB  2097kB  1049kB                     bios_grub
2      2097kB  85,9GB  85,9GB  ext4

(parted)

磁碟

root@proj:~# fdisk /dev/sda

Welcome to fdisk (util-linux 2.31.1).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.


Command (m for help): p
Disk /dev/sda: 80 GiB, 85899345920 bytes, 167772160 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 615AE39E-D8BF-41FC-823C-99CDF4CBAEDF

Device     Start       End   Sectors Size Type
/dev/sda1   2048      4095      2048   1M BIOS boot
/dev/sda2   4096 167772126 167768031  80G Linux filesystem

Command (m for help):

我使用 Webmin 來管理我的伺服器,重新啟動後它繼續說:

Mounted As     Type     Free            Total       Device ID
/              ext4    41% (15.70 GB)  38.37 GB    UUID=1f76306d-c5e9-45d8-ae14-923bb1114c16


Local disk space 22.67 GB used / 15.70 GB free / 38.37 GB total

我是這些問題的新手,請幫助我理解,我的錯誤是什麼?

使分區更大是使作業系統可用空間的必要步驟,但還不夠。您還需要修改文件系統中的元數據,這是使分區中的原始空間可用於儲存文件、目錄、權限等的算法。

鑑於提供的詳細資訊,您需要執行的最有可能的命令是

resize2fs /dev/sda2

引用自:https://serverfault.com/questions/975900