Inode number - Filesystems, Disks and Memory

compbug · #1 06-16-2006

as kernel keeps track of user activities on a file by its INODE number and I node table .

what is the structure of Inode table. and where does this Inode table mapped into?user space or kernel space?

is the Inode Number is fixed for a file till its deletion?

thanks

blowtorch · #2 06-18-2006

I believe that this link should answer your question about the structure of the inode. The inode tables should reside in kernel space, but am not too sure about that. For the third question, yes a file residing in one filesystem will have a single inode number unless you change it yourself. (You cannot directly change an inode number for a file. You have to follow a procedure. See below.)

Code:

# ls -li a.out
  8230 -rwxr-xr-x   1 root       sys          24576 Jun 19 08:10 a.out
# cp -p a.out a.out.tmp; mv a.out.tmp a.out;
# ls -li a.out
  3268 -rwxr-xr-x   1 root       sys          24576 Jun 19 08:10 a.out

More UNIX and Linux Forum Topics You Might Find Helpful
Thread	Thread Starter	Forum	Replies	Last Post
how to find out pathname from inode number	axes	UNIX for Advanced & Expert Users	3	09-26-2008 06:44 AM
about inode	nag.mi2000	SUN Solaris	3	01-07-2008 12:52 AM
incore inode	sanjaygoyan	UNIX for Dummies Questions & Answers	1	12-01-2007 09:01 PM
INode	nitinsharma_ssn	Shell Programming and Scripting	1	02-27-2006 11:25 AM
Directory Inode Number Not Unique	nj302	UNIX for Dummies Questions & Answers	9	05-22-2005 08:34 AM

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode