> Notice that the 8060926 sectors the disk has in LBA mode is more than
> 3935 * 64 * 32 = 8058880, so there are 2046 more sectors in LBA
> mode than in CHS mode.
>
> Assuming 63 sectors per track instead and ignoring cylinder and head
> count gives a spill of 13 sectors. I would have guessed Wind
> # fsck_msdos -n /dev/sd0i
> ** /dev/sd0i
> ** Phase 1 - Read and Compare FATs
> ** Phase 2 - Check Cluster Chains
> ** Phase 3 - Check Directories
> ** Phase 4 - Check for Lost Files
> Free space in FSInfo block (-1) not correct (125686)
> fix? no
> Next free cluster in FSInfo block (2)
On Sat, Jul 07, 2007 at 04:31:21AM -0400, Matthew Szudzik wrote:
> > Disk: sd0 geometry: 3935/64/32 [8060926 Sectors]
> > Offset: 0 Signature: 0xAA55
> > Starting Ending LBA Info:
> > #: idC H S -C H S [ start: size ]
> >
OK, to format a usb flash drive with an MS-DOS (FAT32) file system, I am
using the following procedure. First, I run fdisk
# fdisk -i -e sd0
and edit the MBR partition table as described in the previous message.
Then I run newfs_msdos
# newfs_msdos -F 32 -u 63 /dev/rsd0i
(Is the "-u 63" o
> Disk: sd0 geometry: 3935/64/32 [8060926 Sectors]
> Offset: 0 Signature: 0xAA55
> Starting Ending LBA Info:
> #: idC H S -C H S [ start: size ]
>
> 0: 0B0 1 32 -
> It seems the partition always start on LBA 63. For many modern harddrives
> that is the max number of heads. And for a drive with 63 heads it will
> be Cylinder 0 Head 1 Sector 1 (since sectors start at 1, not 0).
> On your flash drive with 32 fake heads LBA 63 becomes C/H/S 0/1/32.
Excellent!
On Fri, Jul 06, 2007 at 03:26:26PM -0400, Matthew Szudzik wrote:
> > reformatted, then they will have MBR partition tables similar to the
> > following.
> >
> > Disk: sd0 geometry: 492/64/32 [1007616 Sectors]
> > Offset: 0 Signature: 0xAA55
> > Starting Ending LBA Info:
> reformatted, then they will have MBR partition tables similar to the
> following.
>
> Disk: sd0 geometry: 492/64/32 [1007616 Sectors]
> Offset: 0 Signature: 0xAA55
> Starting Ending LBA Info:
> #: idC H S -C H S [ start: size ]
> ---
> > I have a usb flash drive that I wish to reformat as an MS-DOS (FAT) file
> > system. How do I do that on OpenBSD?
>
> For interactive MBR edits you can use "fdisk -e sd0"
> You probably want to use "0C" for FAT32 with long file name support.
I recently bought several flash drives and tested
On 7/1/07, Matthew Szudzik <[EMAIL PROTECTED]> wrote:
I have a usb flash drive that I wish to reformat as an MS-DOS (FAT) file
system. How do I do that on OpenBSD?
I want the drive to be formatted in the same manner that a Windows machine
or Macintosh might format an MS-DOS file system. So cle
Matthew Szudzik <[EMAIL PROTECTED]> writes:
> I have a usb flash drive that I wish to reformat as an MS-DOS (FAT) file
> system. How do I do that on OpenBSD?
You probably want to look into newfs_msdos.
--
Peter N. M. Hansteen, member of the first RFC 1149 implementation team
http://www.blug.l
I have a usb flash drive that I wish to reformat as an MS-DOS (FAT) file
system. How do I do that on OpenBSD?
I want the drive to be formatted in the same manner that a Windows machine
or Macintosh might format an MS-DOS file system. So clearly, I don't want
to use disklabel, since OpenBSD di
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