ISO9660 4GB directory structures boundary limit and growisofs
Andriy Gapon
avg at icyb.net.ua
Mon Apr 19 13:58:51 UTC 2010
on 17/04/2010 19:31 Tim Kientzle said the following:
> Paul B Mahol wrote:
>>
>> It is apparently not possible to make use of -use-the-force-luke=4gms
>> on FreeBSD when appending new session after 4GB. Mounted disk
>> afterwards show nothing.
>>
>> Should we allow it like linux does?
>
> Are you claiming there is a problem when FreeBSD reads such
> images or a problem with creating such images? What
> programs are you using?
>
> This sounds like a pretty unsurprising 32-bit truncation
> bug: the filesystem structures in ISO9660 are all sector
> numbers so 8TB should be the natural limit (4G sectors
> times 2k bytes/sector).
I don't think that the problem is with limit on sector count here.
I think it's a limitation with size/offset in bytes somewhere in cd9660 fs driver.
--
Andriy Gapon
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