From: andrew clarke [EMAIL PROTECTED]
How can I programmatically retrieve the volume serial number and
volume label of a removable disc in FreeBSD? This is the same
information that's presented by issuing a dir command in Windows:
Volume in drive D is FooBar
Volume Serial Number is 58BB-96AA
I've been reading on the Windows filesystems recently,
so here is the quick answer:
The serial number is contained in DOS/Windows
partition's boot block, 8 bytes at offset 0x48.
For the label you have to parse the DOS/Windows
filseystem format. On FAT it's the name of the file
in the root directory with the special attribute
(VOL or LABEL - something like this, can't remember
now). On NTFS it's stored I think as the attribute
$VOLUME_NAME of the system file $Volume contained in the
inode 3 of the Master File Table.
-SB
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