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<td colspan="6" height="35" valign="bottom" nowrap>  <b class="bigsanserif">eMail lesen</b>    <span class="sanserif">Klaus.Halfmann@t-online.de</span></td>
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<tr><td nowrap width="1%" align="left"><b class="sanserif">Absender:</b>
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<td width="99%" nowrap align="left"><a href="addrinsstd.cgp?address=David+Kamholz+%3Cdavekam%40pobox.com%3E" title="David Kamholz <davekam@pobox.com> in das Adressbuch übernehmen" onMouseOver="window.status='David Kamholz <davekam@pobox.com> in das Adressbuch übernehmen';return true;"><span class="sanserif">David Kamholz <davekam@pobox.com></span></a>
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<td nowrap align="left"><span class="sanserif">FW: hfsplus problem</span>
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<tr><td nowrap align="left"><b class="sanserif">Datum:</b>
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<td nowrap align="left"><span class="sanserif">26.08.01 16:55</span>
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<td nowrap align="left"><a href="addrinsstd.cgp?name=&address=klaus.halfmann%40t-online.de" title="klaus.halfmann@t-online.de in das Adressbuch übernehmen" onMouseOver="window.status='klaus.halfmann@t-online.de in das Adressbuch übernehmen';return true;"><span class="sanserif">klaus.halfmann@t-online.de</span></a>
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<tt>
Hopefully this address will work!<br>
<br>
I've also attached a postscript below.<br>
<br>
----------<br>
From: David Kamholz <davekam@pobox.com><br>
Date: Sat, 25 Aug 2001 10:27:06 -0400<br>
To: <khalfmann@libra.de><br>
Subject: hfsplus problem<br>
<br>
Hi Klaus,<br>
<br>
I'm trying to get hfsplus to work to access a 3gb ide drive. I normally use<br>
it on a mac but I want to access it from linux to copy the files off it.<br>
There is one partition only; hfsutils is able to mount the wrapper. However<br>
hfsplusutils complains that it cannot find either the wrapper or HFS+ volume<br>
header.<br>
<br>
Upon examining the code and drive contents a bit more closely, it turns out<br>
that there's a partition map at the beginning. The HFS wrapper is located at<br>
0xE480, so presumably the beginning of the partition is located two blocks<br>
earlier at 0xE080. I tried modifying os_seek to always add 0xE080 to the<br>
offset, as a hack, just to see if it would work. It didn't. There was no<br>
longer an error about not finding the wrapper or the volume, but hpls didn't<br>
work nor anything else. Here is the output from the commands:<br>
<br>
root:/home/davekam/hfsplus-1.0.2/src# ./hpmount /dev/hdc<br>
(null): /dev/hdc: no error (Success)<br>
root:/home/davekam/hfsplus-1.0.2/src# ./hpls<br>
lt-hpls: lt-hpls: Unable to read file for cached Volume information. (No<br>
such file or directory)<br>
root:/home/davekam/hfsplus-1.0.2/src# ./hpumount<br>
lt-hpumount: destroy: Error while destroying .hfsplusvolume (No such file or<br>
directory)<br>
<br>
I haven't had a chance to debug enough to figure out why it's not creating<br>
the cache file. Do you have any idea what's wrong? Let me know if you want<br>
me to run some tests for you...<br>
<br>
Regards,<br>
Dave<br>
----------<br>
<br>
Upon closer examination I got the offset wrong; it was actually 0x14800. The<br>
modifications I made to os.c are as follows:<br>
<br>
#define PARTITION_OFFSET 0x14800<br>
<br>
and in os_seek itself:<br>
<br>
    if (offset == (unsigned long) -1)<br>
        result = lseek(fd, 0, SEEK_END);<br>
    else<br>
    {<br>
        where <<= blksize_bits;<br>
        where += PARTITION_OFFSET;<br>
/*      printf("seeking to %x\n", where); */<br>
        result = lseek(fd, where, SEEK_SET);<br>
        result -= PARTITION_OFFSET;<br>
    }<br>
<br>
This made it possible for me to copy the files I wanted. (I made a small<br>
perl script for recursive directory copying, I can send it to you if you<br>
like.) Actually, there was still one problem -- although doing hpls would<br>
always list directory contents correctly, for a few files, hpls <file> and<br>
hpcopy <file> would report "file not found" errors. I don't believe there<br>
was any problem with the filesystem, I had no trouble accessing these files<br>
on my mac. Fortunately, this occured only for two directories and one file<br>
so it didn't end up being a problem.<br>
<br>
Regards,<br>
Dave<br>
<br>
</tt>
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