Linux command
partx 命令
安全
权限或系统影响较大，执行前请核对目标。
常用示例
List
sudo partx -l [path/to/device_or_disk_image]
Add
sudo partx -a -v [path/to/device_or_disk_image]
Delete
sudo partx -d [path/to/device_or_disk_image]
说明
partx tells the Linux kernel about the presence and numbering of on-disk partitions. It parses a partition table and updates the kernel's in-memory representation without modifying the disk. This is useful when partitions have been added or removed while the disk was in use. The tool can read partition tables from both block devices and disk image files. It supports multiple partition table formats including DOS/MBR, GPT, BSD, and others.
参数
- -a, --add
- Add specified partitions to the kernel
- -d, --delete
- Delete specified partitions from the kernel
- -s, --show
- List partitions (default if no action specified)
- -l, --list
- Same as --show (list partitions)
- -u, --update
- Update specified partitions
- -n, --nr _M_:_N_
- Specify range of partitions (M to N)
- -t, --type _type_
- Specify partition table type (dos, gpt, etc.)
- -o, --output _list_
- Define which columns to show
- -g, --noheadings
- Do not print headings
- -b, --bytes
- Print sizes in bytes
- -r, --raw
- Use raw output format
- -v, --verbose
- Verbose mode
FAQ
What is the partx command used for?
partx tells the Linux kernel about the presence and numbering of on-disk partitions. It parses a partition table and updates the kernel's in-memory representation without modifying the disk. This is useful when partitions have been added or removed while the disk was in use. The tool can read partition tables from both block devices and disk image files. It supports multiple partition table formats including DOS/MBR, GPT, BSD, and others.
How do I run a basic partx example?
Run `sudo partx -l [path/to/device_or_disk_image]` in a terminal, then adjust file names, paths, flags, or remote targets for your system.
What does -a, --add do in partx?
Add specified partitions to the kernel