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Old 07-20-2004, 09:13 AM   #1
Registered: Aug 2003
Location: kerala , India
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introduce me to /dev please


can anyone tell me where i can find good doc abt the /dev file sys

i mean

more abt /dev/tty*


and things like that..


Old 07-20-2004, 09:55 AM   #2
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in the kernel source code there is a documentation folder... find the file relating to devfs and read it

basically, the tty's are for input (usually by keyboard)

and the loop allows you to use files on hard disks, asif they were hard disks themselvs..

make a 50 megabyte file
dd if=/dev/urandom of=/bigfile
make a loop device
losetup /dev/loop1 /bigfile

now, /loop1 can be treated as a seperate hard disk... the hard disk will be saved as /bigfile
and can be formated mounted, or whatever you like.

i use the loop to make a seperate home parttion.
Old 07-21-2004, 12:07 AM   #3
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Re: introduce me to /dev please

Originally posted by tuxfood
can anyone tell me where i can find good doc abt the /dev file sys
A good introduction is the About files and the file system chapter on the Introduction to Linux book. Scroll down to the "The most common devices" subsection and you're there (though I think it may be worthwhile to read the entire chapter)


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