[bug #19425] fatfs can't handle QEMU's virtual fat block device

[Thomas Schwinge]

URL:
  <http://savannah.gnu.org/bugs/?19425>

                 Summary: fatfs can't handle QEMU's virtual fat block device
                 Project: The GNU Hurd
            Submitted by: tschwinge
            Submitted on: Tuesday 03/27/07 at 12:33
                Category: Hurd Servers
                Severity: 1 - Wish
                Priority: 3 - Low
              Item Group: Standard Compliance
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
         Reproducibility: Every Time
              Size (loc): None
         Planned Release: None
                  Effort: 0.00
Wiki-like text discussion box: 

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Details:

QEMU can -- on the fly -- create a virtual fat block device based on a
directory hierarchy on the host system.  (For example: ``-hdc
fat:some/where''.)

The Hurd's fatfs translator, however, can't cope with that block device.  It
may be that it's simply too strict when checking the device for validity; it
might also be that QEMU's emulation is not completely done according to the
specification.

As GNU GRUB and other operating systems (I guess) are able to handle these
block device, I suppose that it's a (probably minor) issue in our fatfs
implementation.





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