Re: Large msdosfs disk will not mount on RELENG_6

On Sun, 2006-11-26 at 19:23, Richard Coleman wrote:
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.

Would you share how you initialized this drive, and what parameters you
used? FAT32 has a 2 TB limit for the filesystem and 2 GB for a file.
The error you saw is thrown when the # of sectors exceeds an unsigned 32
bit integer.

BTW, the limit is based on the DOS spec, not FreeBSD.

jim


_______________________________________________
freebsd-stable@xxxxxxxxxxx mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to "freebsd-stable-unsubscribe@xxxxxxxxxxx"

Relevant Pages

  • bsdlabel, now no boot
    ... I was playing last night on my home FreeBSD system which is the only machine there that has internet access. ... Didn't do the usual "F1 FreeBSD" boot, fell back to a 0:ad/boot/ prompt asking what to boot. ... Wasn't getting anywhere with the CD so I installed a minimal binary 6.1 on one of the SATA drives. ... No error message. ...
    (freebsd-questions)
  • RE: Building a SAN using FreeBSD
    ... available from HP and the bigger players, based on a journaled file system. ... Building a SAN using FreeBSD ... then run samba on each to share some of the drives. ...
    (freebsd-questions)
  • A New FreeBSD Server
    ... The Dell, a dual CPU machine, has a PERC 2/Si controler, with 6 17GB drives. ... My question is what is the best configuration for FreeBsd? ... as fast a file system as is possible. ... should probably be a piece of one of the 17GB drives (NO RAID) the Box has ...
    (freebsd-hackers)
  • Re: freebsd-questions Digest, Vol 97, Issue 21
    ... Seagate HD not detected by FreeBSD ... It is correctly detected by the BIOS as the Secondary Slave. ... > dialogue on Dynamic Hosting Recommendation: ... > FreeBSD has been known to have problems recognizing slave only drives. ...
    (freebsd-questions)
  • Re: Windows XP hangs on startup after the windows logo shows
    ... When I disable automatic restart I get this error message: ... SATA RAID Controller " and then enter the Recovery Console ... v4.5.0.6448 with 2 Seagate Barracuda drives in RAID 0. ...
    (microsoft.public.windowsxp.help_and_support)