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When I type: df -H , this is what I get: Filesystem Size Used Avail Use% Mounted on /dev/sda6 55G 9.4G 43G 19% / devtmpfs 515M 0 515M 0% /dev ...
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- 01-22-2014 #1
- Join Date
- Mar 2013
What are these things that are mounted on my system by default?
Filesystem Size Used Avail Use% Mounted on
/dev/sda6 55G 9.4G 43G 19% /
devtmpfs 515M 0 515M 0% /dev
tmpfs 522M 78k 522M 1% /dev/shm
tmpfs 522M 828k 521M 1% /run
tmpfs 522M 0 522M 0% /sys/fs/cgroup
tmpfs 522M 17k 522M 1% /tmp
The only line I understand is the "dev/sda6" one. What are the rest of these things? And what do the mount points mean? (/dev/shm etc.)
- 01-22-2014 #2
Just let me Google that for you...
What is a tempfs? Overview of RAMFS and TMPFS on Linux
Some (old) information about the /dev (and the /proc) filesystems: Linux.com :: Using the /dev and /proc file systems
In your list the /tmp mountpoint is where the system writes temporary files - because its tmpfs, it's in memory which is much quicker than disk. This is a Good Thing.
The /run filesystem, at a guess stores the pidfiles for various processes - again in memory so it's a good thing.
I'm not familiar with devtmpfs, but I'd hazard a guess that it's another memory filesystem dedicated to devices.Linux user #126863 - see http://linuxcounter.net/
- 01-23-2014 #3
I'm not familiar with devtmpfs, but I'd hazard a guess that it's another memory filesystem dedicated to devices.
@OP. Roxoff is quite right. You could have googled all this for yourself."I'm just a little old lady; don't try to dazzle me with jargon!"