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Date: Tue, 26 Apr 2011 14:43:34 -0400
From: JimR <NotReallyMyEmail@example.net>
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Subject: Re: File real location
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On 04/26/2011 01:24 PM, Richard Kettlewell wrote:
{snip}

> stat() it and look at st_dev.
>

OK, did stat with and without -f.  Got the results below.  The device ID 
is different in each case.  How do I relate that number back to the 
filesystem?

Thanks,

JimR

on mounted fs

stat  /mnt/backups/me
   File: `/mnt/backups/me'
   Size: 0               Blocks: 0          IO Block: 4096   regular 
empty file
Device: 806h/2054d      Inode: 18          Links: 1
Access: (0644/-rw-r--r--)  Uid: (    0/    root)   Gid: (    0/    root)
Access: 2011-04-26 14:29:12.105661329 -0400
Modify: 2011-04-26 14:29:12.105661329 -0400
Change: 2011-04-26 14:29:12.105661329 -0400
===
on unmounted fs

stat /mnt/backups/me
   File: `/mnt/backups/me'
   Size: 0               Blocks: 0          IO Block: 4096   regular 
empty file
Device: 808h/2056d      Inode: 132711      Links: 1
Access: (0644/-rw-r--r--)  Uid: (    0/    root)   Gid: (    0/    root)
Access: 2011-04-26 14:27:06.083765346 -0400
Modify: 2011-04-26 14:27:06.083765346 -0400
Change: 2011-04-26 14:27:06.083765346 -0400

===
stat -f

on mounted

stat -f  /mnt/backups/me
   File: "/mnt/backups/me"
     ID: a9599914aa7bb43c Namelen: 255     Type: ext2/ext3
Block size: 4096       Fundamental block size: 4096
Blocks: Total: 36910968   Free: 24913212   Available: 23038230
Inodes: Total: 9379840    Free: 9379599

===

on umounted
stat -f  /mnt/backups/me
   File: "/mnt/backups/me"
     ID: f2e3d0e7c6681d85 Namelen: 255     Type: ext2/ext3
Block size: 4096       Fundamental block size: 4096
Blocks: Total: 4921158    Free: 3560882    Available: 3310898
Inodes: Total: 1250928    Free: 1073436