背景：買了一塊新的ssd硬盤，掛載到ubuntu下。

1、快速格式化：

1）查看ssd硬盤的盤符：?sudo fdisk -l?

2）快速格式化：?sudo?mkfs.ext4 -T default /dev/sdc?

關(guān)于mkfs命令的T參數(shù)，?man?mkfs.ext4?有一段解釋：

-T usage-type[,...]Specify how the filesystem is going to be used, so that mke2fs can choose optimal filesystem parameters for that use. Theusage types that are supported are defined in the configuration file /etc/mke2fs.conf. The user may specify one or moreusage types using a comma separated list.If this option is is not specified, mke2fs will pick a single default usage type based on the size of the filesystem to becreated. If the filesystem size is less than 3 megabytes, mke2fs will use the filesystem type floppy. If the filesystemsize is greater than or equal to 3 but less than 512 megabytes, mke2fs(8) will use the filesystem type small. If thefilesystem size is greater than or equal to 4 terabytes but less than 16 terabytes, mke2fs(8) will use the filesystem typebig. If the filesystem size is greater than or equal to 16 terabytes, mke2fs(8) will use the filesystem type huge. Other‐wise, mke2fs(8) will use the default filesystem type default.

2、掛載：

mkdir -p /mnt/abc mount -t auto /dev/sdc /mnt/abc

3、

1）卸載：?umount /mnt/abc?

2）如果碰到無法卸載，提示：device is busy等等，可以用fuser命令：?fuser -km /mnt/abc?

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