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List:       busybox
Subject:    [BusyBox] dd and large file systems
From:       Jean Wolter <jw5 () os ! inf ! tu-dresden ! de>
Date:       2004-10-25 15:18:47
Message-ID: 868y9uzuzs.fsf () os ! inf ! tu-dresden ! de
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Hello,

while playing with dd I stumbled across a problem with large files
system support. I tried the following:

  > dd if=/dev/zero of=foo count=1 bs=1 seek=5G

and expected to see the following:

  > ls -lh foo
    -rw-r--r--    1 jw5      users        5.0G 25. Okt 15:10 foo

Instead I've got 

  dd: invalid number `5G'

The reason for "invalid number" is bb_xparse_number, which only
expects unsigned long values and complains about invalid arguments
otherwise. 

Is this the intended behaviour or a bug? If this is the intended
behaviour maybe it should be documented that dd doesn't support large
file systems (at least some options don't support lfs arguments)?

regards,
Jean


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