Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > comp.programming > #5418
| From | "Bill Cunningham" <nospam@nspam.invalid> |
|---|---|
| Newsgroups | comp.programming |
| Subject | Re: fat32 and boot sector |
| Date | 2015-05-06 20:01 -0400 |
| Organization | A noiseless patient Spider |
| Message-ID | <mie9vg$2f1$1@dont-email.me> (permalink) |
| References | <midq6g$51j$1@dont-email.me> <fl7lkahegvmbj3lbqpplp20chr7t6k9q6k@4ax.com> |
"Robert Wessel" <robertwessel2@yahoo.com> wrote in message
news:fl7lkahegvmbj3lbqpplp20chr7t6k9q6k@4ax.com...
> On Wed, 6 May 2015 15:32:31 -0400, "Bill Cunningham"
> <nospam@nspam.invalid> wrote:
>
>> Where exactly on a fat32 partition is the vb record. It's 512 bytes
>> just
>>like the mbr. I need to examine this to find the root direcetory and
>>subsequently the FAT itself. If I were using linux I'd just look at
>>/dev/sda1 but it's not that convenient on win xp x64.
>
>
> What's a vb record? I've never heard of such a thing on a FAT volume.
Volume boot record. In other words the partition's boot sector. That
includes the BPB. The boot sector should be the partition's first sector.
> On a FAT32 volume the entry at +44 (4 bytes) in the BPB points to the
> first cluster of the root directory. The first FAT starts after the
> number of reserved sectors in the partition, as specified by +14 in
> the BPB (2 bytes). On a FAT32 volume that's almost always 32.
I have read something about "cluster two" being a directory cluster and
being IIRC the beginning of the FAT. The thing is unlike 12 and 16 the FAT
has no set size or place the FAT docs tell me. I am assuming because I have
not read otherwise 4096 Bytes is one cluster. Like with NTFS. My XP x64 says
FAT32 cluster size is the "default". So is the beginning of the partition in
the MBR's partition table?
Bill
Back to comp.programming | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
fat32 and boot sector "Bill Cunningham" <nospam@nspam.invalid> - 2015-05-06 15:32 -0400
Re: fat32 and boot sector Robert Wessel <robertwessel2@yahoo.com> - 2015-05-06 18:30 -0500
Re: fat32 and boot sector "Bill Cunningham" <nospam@nspam.invalid> - 2015-05-06 20:01 -0400
Re: fat32 and boot sector Robert Wessel <robertwessel2@yahoo.com> - 2015-05-06 20:07 -0500
Re: fat32 and boot sector "Bill Cunningham" <nospam@nspam.invalid> - 2015-05-06 21:49 -0400
Re: fat32 and boot sector Robert Wessel <robertwessel2@yahoo.com> - 2015-05-06 21:24 -0500
Re: fat32 and boot sector "Bill Cunningham" <nospam@nspam.invalid> - 2015-05-06 23:41 -0400
Re: fat32 and boot sector "Bill Cunningham" <nospam@nspam.invalid> - 2015-05-06 23:42 -0400
Re: fat32 and boot sector Robert Wessel <robertwessel2@yahoo.com> - 2015-05-07 01:23 -0500
Re: fat32 and boot sector "Bill Cunningham" <nospam@nspam.invalid> - 2015-05-07 13:18 -0400
Re: fat32 and boot sector Robert Wessel <robertwessel2@yahoo.com> - 2015-05-09 00:01 -0500
Re: fat32 and boot sector JJ <jj4public@vfemail.net> - 2015-05-08 00:26 +0700
Re: fat32 and boot sector "Bill Cunningham" <nospam@nspam.invalid> - 2015-05-07 14:17 -0400
Re: fat32 and boot sector JJ <jj4public@vfemail.net> - 2015-05-09 21:49 +0700
Re: fat32 and boot sector Robert Wessel <robertwessel2@yahoo.com> - 2015-05-09 00:03 -0500
Re: fat32 and boot sector JJ <jj4public@vfemail.net> - 2015-05-09 21:55 +0700
Re: fat32 and boot sector Robert Wessel <robertwessel2@yahoo.com> - 2015-05-09 11:43 -0500
Re: fat32 and boot sector JJ <jj4public@vfemail.net> - 2015-05-10 16:05 +0700
csiph-web