Device number in stat command output

Question

  stat test.log 
  File: `test.log\'
  Size: 573         Blocks: 8          IO Block: 4096   regular file
Device: 804h/2052d  Inode: 7091301     Links: 1
Access: (06         


        

Answer 1

The stat command is simply a frontend to the stat() system call.

From the stat(2) manual page (man 2 stat)

The st_dev field describes the device on which this file resides. (The major(3) and minor(3) macros may be useful to decompose the device ID in this field.)

From the 0804 hex notation you get major=8 (/dev/sd*) minor=4. i.e. /dev/sda4