#12018 LOW Not Tri: Open Firmware cannot read an ISO-9660 image on a USB storage class device

Zarro Boogs per Child bugtracker at laptop.org
Tue Jul 17 22:12:14 EDT 2012


#12018: Open Firmware cannot read an ISO-9660 image on a USB storage class device
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           Reporter:  Quozl                |       Owner:  Quozl                            
               Type:  defect               |      Status:  new                              
           Priority:  low                  |   Milestone:  Not Triaged                      
          Component:  ofw - open firmware  |     Version:  Development build as of this date
         Resolution:                       |    Keywords:                                   
        Next_action:  design               |    Verified:  0                                
Deployment_affected:                       |   Blockedby:                                   
           Blocking:                       |  
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Changes (by Quozl):

  * priority:  normal => low


Old description:

> The primary volume descriptor is read from an incorrect media address,
> because of the calculation of offset depends on the sector size of the
> device, in ''iso-9660?'' in the disk label package.  This results in the
> filesystem not being detected.
>
> [http://www.pismotechnic.com/cfs/iso9660-1999.html ISO9660:1999] implies
> in section 6.1.2 that logical sector size should be at least 2048 bytes.
> The primary volume descriptor is at an offset of 16 logical sectors.

New description:

 The primary volume descriptor is read from an incorrect media address,
 because the calculation of offset depends on the sector size of the
 device, in ''iso-9660?'' in the disk label package.  This results in the
 filesystem not being detected.

 [http://www.pismotechnic.com/cfs/iso9660-1999.html ISO9660:1999] implies
 in section 6.1.2 that logical sector size should be at least 2048 bytes.
 The primary volume descriptor is at an offset of 16 logical sectors.

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Ticket URL: <http://dev.laptop.org/ticket/12018#comment:1>
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