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file-systems: Improve error handling in the iso9660 case - fixes boot problem.
* gnu/build/file-systems.scm (read-iso9660-superblock): Modify.
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@ -260,7 +260,11 @@ (define (read-iso9660-superblock device)
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"Return the raw contents of DEVICE's iso9660 primary volume descriptor
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"Return the raw contents of DEVICE's iso9660 primary volume descriptor
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as a bytevector, or #f if DEVICE does not contain an iso9660 file system."
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as a bytevector, or #f if DEVICE does not contain an iso9660 file system."
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;; Start reading at sector 16.
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;; Start reading at sector 16.
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(read-iso9660-primary-volume-descriptor device (* 2048 16)))
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;; Since we are not sure that the device contains an ISO9660 filesystem,
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;; we have to find that out first.
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(if (read-superblock device (* 2048 16) 2048 iso9660-superblock?)
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(read-iso9660-primary-volume-descriptor device (* 2048 16))
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#f)) ; Device does not contain an iso9660 filesystem.
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(define (iso9660-superblock-uuid sblock)
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(define (iso9660-superblock-uuid sblock)
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"Return the modification time of an iso9660 primary volume descriptor
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"Return the modification time of an iso9660 primary volume descriptor
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