代码改变世界

You cannot change a partition into an extended one or vice versa Delete it first

  潇湘隐者  阅读(6541)  评论(0编辑  收藏  举报

    在Linux扩展LVM时,使用fdisk创建分区时,在磁盘上新建扩展分区(逻辑分区),修改分区格式,指定分区类型为8e时,报错“You cannot change a partition into an extended one or vice versa Delete it first.”。 具体操作如下所示:

[root@get-linux01 ~]# fdisk /dev/sdc
 
The number of cylinders for this disk is set to 5221.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1) software that runs at boot time (e.g., old versions of LILO)
2) booting and partitioning software from other OSs
   (e.g., DOS FDISK, OS/2 FDISK)
 
Command (m for help): p
 
Disk /dev/sdc: 42.9 GB, 42949672960 bytes
255 heads, 63 sectors/track, 5221 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
 
   Device Boot      Start         End      Blocks   Id  System
 
Command (m for help): n
Command action
   e   extended
   p   primary partition (1-4)
e
Partition number (1-4): 1
First cylinder (1-5221, default 1): 
Using default value 1
Last cylinder or +size or +sizeM or +sizeK (1-5221, default 5221): 
Using default value 5221
 
Command (m for help): t
Selected partition 1
Hex code (type L to list codes): 8e
You cannot change a partition into an extended one or vice versa
Delete it first.
 
Command (m for help): n  
Command action
   l   logical (5 or over)
   p   primary partition (1-4)
l
First cylinder (1-5221, default 1): 
Using default value 1
Last cylinder or +size or +sizeM or +sizeK (1-5221, default 5221): 
Using default value 5221
 
Command (m for help): t
Partition number (1-5): 1
Hex code (type L to list codes): 8e
You cannot change a partition into an extended one or vice versa
Delete it first.
 
Command (m for help): p
 
Disk /dev/sdc: 42.9 GB, 42949672960 bytes
255 heads, 63 sectors/track, 5221 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
 
   Device Boot      Start         End      Blocks   Id  System
/dev/sdc1               1        5221    41937651    5  Extended
/dev/sdc5               1        5221    41937619+  83  Linux
 
Command (m for help): w
The partition table has been altered!
 
Calling ioctl() to re-read partition table.
Syncing disks.

其实出现这个错误,是因为分区号(Partition number)号弄错了(因为必须保留1-4这4个数字给主分区和扩展分区使用,所以逻辑分区的数字必须从5开始)。赤裸裸的要被鄙视啊! 按照下面操作即可解决问题。

clip_image001

编辑推荐:
· 一个费力不讨好的项目,让我损失了近一半的绩效!
· .NET Core 托管堆内存泄露/CPU异常的常见思路
· PostgreSQL 和 SQL Server 在统计信息维护中的关键差异
· C++代码改造为UTF-8编码问题的总结
· DeepSeek 解答了困扰我五年的技术问题
阅读排行:
· 一个费力不讨好的项目,让我损失了近一半的绩效!
· 清华大学推出第四讲使用 DeepSeek + DeepResearch 让科研像聊天一样简单!
· 实操Deepseek接入个人知识库
· CSnakes vs Python.NET:高效嵌入与灵活互通的跨语言方案对比
· Plotly.NET 一个为 .NET 打造的强大开源交互式图表库
历史上的今天:
2014-08-07 中断ORACLE数据库关闭进程导致错误案例
点击右上角即可分享
微信分享提示