30 lines
1.3 KiB
Markdown
30 lines
1.3 KiB
Markdown
# Blkid 查看磁盘 ID
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在 Linux 下可以使用 blkid 命令对查询设备上所采用文件系统类型进行查询。blkid 主要用来对系统的块设备（包括交换分区）所使用的文件系统类型、LABEL、UUID 等信息进行查询。
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命令选项如下：
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```bash
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-c <file> 指定cache文件(default: /etc/blkid.tab, /dev/null = none)
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-d don't encode non-printing characters
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-h 显示帮助信息
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-g garbage collect the blkid cache
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-o <format> 指定输出格式
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-k list all known filesystems/RAIDs and exit
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-s <tag> 显示指定信息，默认显示所有信息
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-t <token> find device with a specific token (NAME=value pair)
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-l look up only first device with token specified by -t
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-L <label> convert LABEL to device name
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-U <uuid> convert UUID to device name
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-v 显示版本信息
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-w <file> write cache to different file (/dev/null = no write)
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<dev> specify device(s) to probe (default: all devices)
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Low-level probing options:
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-p low-level superblocks probing (bypass cache)
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-i gather information about I/O limits
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-S <size> overwrite device size
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-O <offset> probe at the given offset
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-u <list> filter by "usage" (e.g. -u filesystem,raid)
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-n <list> filter by filesystem type (e.g. -n vfat,ext3)
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```
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