vgextend sda3 /dev/sda4 Volume group "sda3" not found Cannot process volume group sda3

回答: 根据提供的引用内容，问题是关于vgextend命令的使用。根据引用\[2\]中的信息，命令"vgextend centos /dev/sdb5"用于将物理卷/dev/sdb5添加到卷组centos中。然而，根据引用\[1\]中的错误信息，卷组"centos"中找不到物理卷"/dev/sdb5"。此外，根据引用\[3\]中的信息，/dev/sda3是一个Linux分区，而不是一个卷组。因此，命令"vgextend sda3 /dev/sda4"会报错"Volume group "sda3" not found"。请检查卷组的名称和物理卷的路径是否正确，并确保卷组存在于系统中。
#### 引用[.reference_title]
- *1* *2* [Physical Volume “/dev/sdb5“ not found in Volume Group “centos“.](https://blog.csdn.net/helloasimo/article/details/125586513)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^control_2,239^v3^insert_chatgpt"}} ] [.reference_item]
- *3* [Device /dev/sda4 not found (or ignored by filtering).](https://blog.csdn.net/qq_37674858/article/details/82147704)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^control_2,239^v3^insert_chatgpt"}} ] [.reference_item]
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