Linux command
e2undo 命令
文件
复制后可按需替换文件名、目录或参数。
常用示例
Example
e2undo -h [path/to/undo_file] [/dev/sdXN]
Dry run
e2undo -nv [path/to/undo_file] [/dev/sdXN]
Example
e2undo [path/to/undo_file] [/dev/sdXN]
Example
e2undo -v [path/to/undo_file] [/dev/sdXN]
Example
e2undo -z [path/to/file.e2undo] [path/to/undo_file] [/dev/sdXN]
说明
e2undo replays undo logs for ext2/ext3/ext4 filesystems. This can reverse a failed or unwanted operation by e2fsprogs tools like e2fsck, resize2fs, or tune2fs, providing a safety mechanism for filesystem modifications. Undo files are created when these tools are run with the -z option. The undo file records all blocks modified during the operation, allowing precise rollback to the pre-operation state. This is particularly valuable when testing filesystem modifications or recovering from interrupted operations.
参数
- -h
- Display undo file information
- -n
- Dry run, don't modify filesystem
- -v
- Verbose output
- -z _file_
- Create backup undo file
FAQ
What is the e2undo command used for?
e2undo replays undo logs for ext2/ext3/ext4 filesystems. This can reverse a failed or unwanted operation by e2fsprogs tools like e2fsck, resize2fs, or tune2fs, providing a safety mechanism for filesystem modifications. Undo files are created when these tools are run with the -z option. The undo file records all blocks modified during the operation, allowing precise rollback to the pre-operation state. This is particularly valuable when testing filesystem modifications or recovering from interrupted operations.
How do I run a basic e2undo example?
Run `e2undo -h [path/to/undo_file] [/dev/sdXN]` in a terminal, then adjust file names, paths, flags, or remote targets for your system.
What does -h do in e2undo?
Display undo file information