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Old 12-28-2009, 06:40 PM   #1
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Question What is the easiest way to match a mount point to a device?

Say I have to work on an unknown systems with multiple hard drives. I know it has the primary system on /dev/sda. What is the easiest way (without checking /etc/fstab or /etc/mtab) to check to see what /dev/* is mounted where?

In otherwords, is there a command I can run that will say /dev/sda1 is mounted to /, /dev/sdb1 is mounted to /media/Data, /dev/sdc1 is mounted to /home/user/backups/, and /dev/sdc2 is mounted at /var/www/usb/?

Know what I mean?
Old 12-28-2009, 06:45 PM   #2
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Hello worm5252,
df -h
Old 12-28-2009, 07:28 PM   #3
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it will look like this:

$ df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/sda2              48G  1.7G   44G   4% /
/dev/sda1             251M   38M  201M  16% /boot
tmpfs                1014M     0 1014M   0% /dev/shm
/dev/sda3             133G  120G  6.8G  95% /home1
/dev/sdb2              71G   36G   31G  54% /home11
/dev/sdc1              20G   13G  6.7G  66% /winXP
/dev/sdc2             260G  226G   35G  87% /winXP_data
/dev/sdd3              19G  7.9G  9.6G  45% /sdd3
/dev/sdd4             208G  159G   39G  81% /sdd4
you can clearly see what dev is mounted to what name and with cat /etc/fstab you can see more details:

$ cat /etc/fstab 
LABEL=/1                /                       ext3    defaults        1 1
LABEL=/boot1            /boot                   ext3    defaults        1 2
tmpfs                   /dev/shm                tmpfs   defaults        0 0
devpts                  /dev/pts                devpts  gid=5,mode=620  0 0
sysfs                   /sys                    sysfs   defaults        0 0
proc                    /proc                   proc    defaults        0 0
LABEL=SWAP-sdb1         swap                    swap    defaults        0 0
/dev/sda3		/home1			ext3	exec,rw,noatime,user	0 0
/dev/sdb2		/home11			ext3	rw,noatime,user	0 0
/dev/sdc1		/winXP			vfat	rw,noatime,user,umask=00 0
/dev/sdc2		/winXP_data		ntfs-3g	rw,umask=0000,defaults	0 0
/dev/sdd3		/sdd3			ext3	rw,noatime,user	0 0
/dev/sdd4		/sdd4			ext3	rw,noatime,user	0 0
now not only can you see what is mounted to what name, but what file type, what permissions, etc... this is on my NFS server so permissions are very open for my home use.
Old 12-28-2009, 07:49 PM   #4
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Thanks, I use du but I never use df. That's why I did not know.


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