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认领已配置的存储

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认领已配置的存储

我创建了一个 ubuntu 服务器虚拟机，配置了 64GB 的存储空间。我记得我指定了 30GB 用于虚拟机。当我这样做时df -h，我得到了

Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/analysis--db-root<br/>
                       28G   25G  904M  97% /
udev                  2.0G  4.0K  2.0G   1% /dev
tmpfs                 793M  228K  793M   1% /run
none                  5.0M     0  5.0M   0% /run/lock
none                  2.0G     0  2.0G   0% /run/shm
/dev/sda1             228M   45M  171M  21% /boot

磁盘几乎已满，如何使用配置存储中的另外 30GB？

另外，当我输入“sudo parted -l”时：

Model: VMware Virtual disk (scsi)
Disk /dev/sda: 64.4GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos

Number  Start   End     Size    Type      File system  Flags
 1      1049kB  256MB   255MB   primary   ext2         boot
 2      257MB   64.4GB  64.2GB  extended
 5      257MB   64.4GB  64.2GB  logical                lvm


Model: Linux device-mapper (linear) (dm)
Disk /dev/mapper/analysis--db-swap_1: 533MB
Sector size (logical/physical): 512B/512B
Partition Table: loop

Number  Start  End    Size   File system     Flags
 1      0.00B  533MB  533MB  linux-swap(v1)


Model: Linux device-mapper (linear) (dm)
Disk /dev/mapper/analysis--db-root: 29.5GB
Sector size (logical/physical): 512B/512B
Partition Table: loop

Number  Start  End     Size    File system  Flags
 1      0.00B  29.5GB  29.5GB  ext4

答案1

我已经通过参考解决了这个问题http://ezunix.org/index.php/Extend_existing_LVM_root_partition_without_rebooting。我只需要扩展逻辑卷，然后扩展文件系统。

twadmin@analysis-db:~$ sudo  lvextend -l +100%FREE /dev/analysis-db/root
  Extending logical volume root to 59.26 GiB
  Logical volume root successfully resized

twadmin@analysis-db:~$ sudo resize2fs /dev/mapper/analysis--db-root
resize2fs 1.41.14 (22-Dec-2010)
Filesystem at /dev/mapper/analysis--db-root is mounted on /; on-line resizing required
old desc_blocks = 2, new_desc_blocks = 4
Performing an on-line resize of /dev/mapper/analysis--db-root to 15535104 (4k) blocks.
The filesystem on /dev/mapper/analysis--db-root is now 15535104 blocks long.

twadmin@analysis-db:~$ df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/analysis--db-root
                       59G   25G   31G  45% /
udev                  2.0G  4.0K  2.0G   1% /dev
tmpfs                 793M  228K  793M   1% /run
none                  5.0M     0  5.0M   0% /run/lock
none                  2.0G     0  2.0G   0% /run/shm
/dev/sda1             228M   45M  171M  21% /boot

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