----- Original Message ----- From: "Richard Coleman" <[EMAIL PROTECTED]>
To: <freebsd-stable@freebsd.org>
Sent: Monday, November 27, 2006 5:23 AM
Subject: Large msdosfs disk will not mount on RELENG_6


I just bought a large external hard drive for home backups (500g Western Digital My Book). When I plug it in to my machine (RELENG_6 from about a week ago), the system sees the device just fine:

Nov 26 22:03:21 neptune kernel: umass0: Western Digital External HDD, rev 2.00/1.06, addr 2 Nov 26 22:03:21 neptune kernel: uhid1: Western Digital External HDD, rev 2.00/1.06, addr 2, iclass 8/6
Nov 26 22:03:21 neptune kernel: da0 at umass-sim0 bus 0 target 0 lun 0
Nov 26 22:03:21 neptune kernel: da0: <WD 5000YS External 106a> Fixed Direct Access SCSI-4 device
Nov 26 22:03:21 neptune kernel: da0: 40.000MB/s transfers
Nov 26 22:03:21 neptune kernel: da0: 476940MB (976773168 512 byte sectors: 255H 63S/T 60801C)


But when I try to mount the drive (mount -t msdos /dev/da0 /mnt), the system gives the following error:

Nov 26 22:06:41 neptune kernel: mountmsdosfs(): disk too big, sorry

I was surprised to see a file system limitation on FreeBSD that Windows does not have. I will probably reformat the system to ufs2, but thought I would mention this error message. I'm sure these drives will become increasingly common.

Richard Coleman
[EMAIL PROTECTED]

I am very suprised at all that windows would allow you to format a 500G drive into a single 500G FAT32 partition.

As far as I am aware windows 2000 and xp will only allow you to format up to a 32G dive with FAT32. Any bigger and it will force you to use NTFS. The other strange thing is tht you are trying to mount /dev/da0 and not /dev/de0s1.

How did you format this drive ?

-Clay


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