为什么我无法对 LUKS 安装的分区进行分区?

为什么我无法对 LUKS 安装的分区进行分区?

CentOS 7 服务器必须对除 和 之外的所有内容进行 LUKS 加密/boot/boot/efi然后需要对大型 LUKS 加密剩余分区 (1.8 TB) 进行进一步分区。在 CentOS 7 安装过程中,我能够对硬盘所需的部分进行 LUKS 加密,但现在我无法在大型 LUKS 分区内创建其他分区。 如何在大型 (1.8 TB) LUKS 加密分区中创建分区? 这是迄今为止我尝试的实际终端记录:

[root@localhost ~]# fdisk -l
WARNING: fdisk GPT support is currently new, and therefore in an experimental phase. Use at your own discretion.

Disk /dev/sda: 2000.4 GB, 2000398934016 bytes, 3907029168 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
Disk label type: gpt

#         Start          End    Size  Type            Name
 1         2048       411647    200M  EFI System      EFI System Partition
 2       411648      1435647    500M  Microsoft basic 
 3      1435648    105850879   49.8G  Microsoft basic 
 4    105850880    121841663    7.6G  Linux swap      

Disk /dev/mapper/luks-fb2eda94-fcff-4624-8b04-a9786845504a: 53.5 GB, 53458501632 bytes, 104411136 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

Disk /dev/mapper/luks-08f8bdb9-85bf-45ef-9519-3f38906c489a: 1938.0 GB, 1938005426176 bytes, 3785166848 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

[root@localhost ~]# df -T -h
Filesystem     Type      Size  Used Avail Use% Mounted on
/dev/dm-0      ext4       49G  1.1G   46G   3% /
devtmpfs       devtmpfs  3.8G     0  3.8G   0% /dev
tmpfs          tmpfs     3.8G     0  3.8G   0% /dev/shm
tmpfs          tmpfs     3.8G  8.7M  3.8G   1% /run
tmpfs          tmpfs     3.8G     0  3.8G   0% /sys/fs/cgroup
/dev/sda2      ext4      477M  110M  338M  25% /boot
/dev/sda1      vfat      200M  9.8M  191M   5% /boot/efi
/dev/dm-1      ext4      1.8T   77M  1.7T   1% /home

[root@localhost ~]# parted
GNU Parted 3.1
Using /dev/sda
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) print                                                            
Model: ATA WDC WD20EZRX-00D (scsi)
Disk /dev/sda: 2000GB
Sector size (logical/physical): 512B/4096B
Partition Table: gpt
Disk Flags: 

Number  Start   End     Size    File system     Name                  Flags
 1      1049kB  211MB   210MB   fat16           EFI System Partition  boot
 2      211MB   735MB   524MB   ext4
 3      735MB   54.2GB  53.5GB
 4      54.2GB  62.4GB  8187MB  linux-swap(v1)
 5      62.4GB  2000GB  1938GB

(parted) unit compact
(parted) select /dev/dm
Error: Could not stat device /dev/dm - No such file or directory.
Retry/Cancel? cancel                                                      
(parted) select /dev/dm-1                                                 
Using /dev/dm-1
(parted) rm 5
Error: Partition doesn't exist.
(parted) print                                                            
Model: Linux device-mapper (crypt) (dm)
Disk /dev/dm-1: 1938GB
Sector size (logical/physical): 512B/4096B
Partition Table: loop
Disk Flags: 

Number  Start  End     Size    File system  Flags
 1      0.00B  1938GB  1938GB  ext4

(parted) quit                                                             
[root@localhost ~]# parted
GNU Parted 3.1
Using /dev/sda
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) print                                                            
Model: ATA WDC WD20EZRX-00D (scsi)
Disk /dev/sda: 2000GB
Sector size (logical/physical): 512B/4096B
Partition Table: gpt
Disk Flags: 

Number  Start   End     Size    File system     Name                  Flags
 1      1049kB  211MB   210MB   fat16           EFI System Partition  boot
 2      211MB   735MB   524MB   ext4
 3      735MB   54.2GB  53.5GB
 4      54.2GB  62.4GB  8187MB  linux-swap(v1)
 5      62.4GB  2000GB  1938GB

(parted) unit compact                                                     
(parted) rm 5                                                             
Error: Partition(s) 5 on /dev/sda have been written, but we have been  
unable to inform the kernel of the change, probably because it/they are  
in use.  As a result, the old partition(s) will remain in use.  You  
should reboot now before making further changes.
Ignore/Cancel?  cancel                        
(parted) quit
Information: You may need to update /etc/fstab.

编辑:


根据@TomHunt的建议,我在机器上重新安装了CentOS 7,这次使用LVM作为所有相关分区的分区类型,包括大型 1.8 TB 分区。但是,当我尝试准备对 1.8 TB 分区进行分区parted时,仍然出现相同的错误。rm 3这是我最近尝试的终端日志:

[root@localhost ~]# fdisk -l
WARNING: fdisk GPT support is currently new, and therefore in an experimental phase. Use at your own discretion.

Disk /dev/sda: 2000.4 GB, 2000398934016 bytes, 3907029168 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
Disk label type: gpt

#         Start          End    Size  Type            Name
 1         2048       411647    200M  EFI System      EFI System Partition
 2       411648      1435647    500M  Microsoft basic 
 3      1435648   3906914303    1.8T  Microsoft basic 

Disk /dev/mapper/luks-75fe4a52-a76f-4dfb-8cb9-da59ba955a55: 1999.6 GB, 1999602974720 bytes, 3905474560 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

Disk /dev/mapper/centos-swap: 8187 MB, 8187281408 bytes, 15990784 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

Disk /dev/mapper/centos-root: 53.7 GB, 53687091200 bytes, 104857600 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

Disk /dev/mapper/centos-home: 1937.7 GB, 1937718116352 bytes, 3784605696 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

[root@localhost ~]# df -T -h
Filesystem              Type      Size  Used Avail Use% Mounted on
/dev/mapper/centos-root ext4       50G  836M   46G   2% /
devtmpfs                devtmpfs  3.8G     0  3.8G   0% /dev
tmpfs                   tmpfs     3.8G     0  3.8G   0% /dev/shm
tmpfs                   tmpfs     3.8G  8.6M  3.8G   1% /run
tmpfs                   tmpfs     3.8G     0  3.8G   0% /sys/fs/cgroup
/dev/sda2               xfs       494M  115M  379M  24% /boot
/dev/sda1               vfat      200M  9.8M  191M   5% /boot/efi
/dev/mapper/centos-home ext4      1.8T   77M  1.7T   1% /home
[root@localhost ~]# parted
GNU Parted 3.1
Using /dev/sda
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) print                                                            
Model: ATA WDC WD20EZRX-00D (scsi)
Disk /dev/sda: 2000GB
Sector size (logical/physical): 512B/4096B
Partition Table: gpt
Disk Flags: 

Number  Start   End     Size    File system  Name                  Flags
 1      1049kB  211MB   210MB   fat16        EFI System Partition  boot
 2      211MB   735MB   524MB   xfs
 3      735MB   2000GB  2000GB

(parted) rm 3                                                             
Error: Partition(s) 3 on /dev/sda have been written, but we have been unable to inform
the kernel of the change, probably because it/they are in use.  As a result, the old
partition(s) will remain in use.  You should reboot now before making further changes.
Ignore/Cancel? cancel                                                     
(parted) quit                                                             
Information: You may need to update /etc/fstab.

那么我该如何对该驱动器进行分区呢?

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