Linux Disk device knowledge

Number of Linux partition numbers:

1. The partition number 1 to 4 is reserved for primary or extended partitions, and the logical partition number starts with 5.

2, IDE hard disk device name start with/DEV/HD, different hard drive numbers are/dev/hda/,/dev/hdb,/dev/hdc ...

3, SAS/SCSI/SATA/USB interface hard disk device name all start with/DEV/SD, different hard drive number is/DEV/SDA,/DEV/SDB,/DEV/SDC ...

4. Common external device file name in Linux:

Floppy/dev/fdn (n=0,1 ...)

Optical drive (IDE) interface/dev/cd-rom

Optical drive (SCSI) interface/dev/scdn (n=0,1 ...)

Today, learning Linux disk equipment knowledge, followed by the teacher wrote the above notes, hoping to bring help to beginners.

Linux Disk device knowledge