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ISO file creation -- procedure

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Top Forums UNIX for Advanced & Expert Users ISO file creation -- procedure
# 1  
Old 08-28-2009
ISO file creation -- procedure
Hi All,

Am creating ISO file for same directory two times and both has different md5sum, Why does it so ?!

Am pretty sure that, there is no change in that directory between the ISO creations, So what could be issue ? Or is there any misunderstanding in the process.

Code:
mkisofs -J -R -otest1.iso ./testdir
mkisofs -J -R -otest2.iso ./testdir

Expecting both the md5sum to be same !! but it is not ??

Code:
$ md5sum test?.iso
2a1001de29b75013d1bb5a8a787cf2ef  test1.iso
d01b9b1120ec6662d582dc3af6f94338  test2.iso

Side Note: I have related question posted already here, which dont had answer, so tried other ways and the above is one of the doubt in other way... https://www.unix.com/unix-advanced-ex...-iso-file.html
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LEARN ABOUT SUNOS

iconv

iconv(5)						Standards, Environments, and Macros						  iconv(5)

NAME

       iconv - code set conversion tables

DESCRIPTION

       The following code set conversions are supported:

		      Code Set Conversions Supported

       Code	      Symbol   Target Code    Symbol   Target Output

       ISO 646	      646      ISO 8859-1     8859     US ASCII
       ISO 646de      646de    ISO 8859-1     8859     German
       ISO 646da      646da    ISO 8859-1     8859     Danish
       ISO 646en      646en    ISO 8859-1     8859     English ASCII
       ISO 646es      646es    ISO 8859-1     8859     Spanish
       ISO 646fr      646fr    ISO 8859-1     8859     French
       ISO 646it      646it    ISO 8859-1     8859     Italian
       ISO 646sv      646sv    ISO 8859-1     8859     Swedish
       ISO 8859-1     8859     ISO 646	      646      7 bit ASCII
       ISO 8859-1     8859     ISO 646de      646de    German
       ISO 8859-1     8859     ISO 646da      646da    Danish
       ISO 8859-1     8859     ISO 646en      646en    English ASCII
       ISO 8859-1     8859     ISO 646es      646es    Spanish
       ISO 8859-1     8859     ISO 646fr      646fr    French
       ISO 8859-1     8859     ISO 646it      646it    Italian
       ISO 8859-1     8859     ISO 646sv      646sv    Swedish
       ISO 8859-16    iso16    ISO 8859-2     iso2     ISO Latin 2
       ISO 8859-2     iso2     ISO 8859-16    iso16    ISO Latin 10
       ISO 8859-16    iso16    IBM 850	      ibm850   IBM 850 code page
       ISO 8859-16    iso16    IBM 870	      ibm870   IBM 870 code page
       ISO 8859-2     iso2     MS 1250	      win2     Windows Latin 2
       ISO 8859-2     iso2     MS 852	      dos2     MS-DOS Latin 2
       ISO 8859-2     iso2     Mazovia	      maz      Mazovia
       IBM 850	      ibm850   ISO 8859-16    iso16    ISO Latin 10
       IBM 870	      ibm870   ISO 8859-16    iso16    ISO Latin 10
       MS 1250	      win2     DHN	      dhn      Dom Handlowy Nauki
       MS 852	      dos2     ISO 8859-2     iso2     ISO Latin 2
       MS 852	      dos2     MS 1250	      win2     Windows Latin 2
       MS 852	      dos2     Mazovia	      maz      Mazovia
       MS 852	      dos2     DHN	      dhn      Dom Handlowy Nauki
       Mazovia	      maz      ISO 8859-2     iso2     ISO Latin 2
       Mazovia	      maz      MS 1250	      win2     Windows Latin 2
       Mazovia	      maz      MS 852	      dos2     MS-DOS Latin 2
       Mazovia	      maz      DHN	      dhn      Dom Handlowy Nauki
       DHN	      dhn      ISO 8859-2     iso2     ISO Latin 2
       DHN	      dhn      MS 1250	      win2     Windows Latin 2
       DHN	      dhn      MS 852	      dos2     MS-DOS Latin 2
       DHN	      dhn      Mazovia	      maz      Mazovia
       ISO 8859-5     iso5     KOI8-R	      koi8     KOI8-R
       ISO 8859-5     iso5     PC Cyrillic    alt      Alternative PC Cyrillic
       ISO 8859-5     iso5     MS 1251	      win5     Windows Cyrillic
       ISO 8859-5     iso5     Mac Cyrillic   mac      Macintosh Cyrillic
       KOI8-R	      koi8     ISO 8859-5     iso5     ISO 8859-5 Cyrillic
       KOI8-R	      koi8     PC Cyrillic    alt      Alternative PC Cyrillic
       KOI8-R	      koi8     MS 1251	      win5     Windows Cyrillic
       KOI8-R	      koi8     Mac Cyrillic   mac      Macintosh Cyrillic
       PC Cyrillic    alt      ISO 8859-5     iso5     ISO 8859-5 Cyrillic
       PC Cyrillic    alt      KOI8-R	      koi8     KOI8-R
       PC Cyrillic    alt      MS 1251	      win5     Windows Cyrillic
       PC Cyrillic    alt      Mac Cyrillic   mac      Macintosh Cyrillic
       MS 1251	      win5     ISO 8859-5     iso5     ISO 8859-5 Cyrillic
       MS 1251	      win5     KOI8-R	      koi8     KOI8-R
       MS 1251	      win5     PC Cyrillic    alt      Alternative PC Cyrillic
       MS 1251	      win5     Mac Cyrillic   mac      Macintosh Cyrillic
       Mac Cyrillic   mac      ISO 8859-5     iso5     ISO 8859-5 Cyrillic
       Mac Cyrillic   mac      KOI8-R	      koi8     KOI8-R
       Mac Cyrillic   mac      PC Cyrillic    alt      Alternative PC Cyrillic
       Mac Cyrillic   mac      MS 1251	      win5     Windows Cyrillic

CONVERSIONS

       The conversions are performed according to the tables contained in the manual pages cross-referenced in the Index of Conversion Code Tables
       below.

       +--------------------------------------------------------------+
       |	       Index of Conversion Code Tables		      |
       +--------------------+--------------------+--------------------+
       |       Code	    |	 Target Code	 |  See Manual Page   |
       +--------------------+--------------------+--------------------+
       |ISO 646 	    |ISO 8859-1 	 | iconv_646(5)      |
       +--------------------+--------------------+--------------------+
       |ISO 646de	    |ISO 8859-1 	 |		      |
       +--------------------+--------------------+--------------------+
       |ISO 646da	    |ISO 8859-1 	 |		      |
       +--------------------+--------------------+--------------------+
       |ISO 646en	    |ISO 8859-1 	 |		      |
       +--------------------+--------------------+--------------------+
       |ISO 646es	    |ISO 8859-1 	 |		      |
       +--------------------+--------------------+--------------------+
       |ISO 646fr	    |ISO 8859-1 	 |		      |
       +--------------------+--------------------+--------------------+
       |ISO 646it	    |ISO 8859-1 	 |		      |
       +--------------------+--------------------+--------------------+
       |ISO 646sv	    |ISO 8859-1 	 |		      |
       +--------------------+--------------------+--------------------+
       |ISO 8859-1	    |ISO 646		 | iconv_8859-1(5)   |
       +--------------------+--------------------+--------------------+
       |ISO 8859-1	    |ISO 646de		 |		      |
       +--------------------+--------------------+--------------------+
       |ISO 8859-1	    |ISO 646da		 |		      |
       +--------------------+--------------------+--------------------+
       |ISO 8859-1	    |ISO 646en		 |		      |
       +--------------------+--------------------+--------------------+
       |ISO 8859-1	    |ISO 646es		 |		      |
       +--------------------+--------------------+--------------------+
       |ISO 8859-1	    |ISO 646fr		 |		      |
       +--------------------+--------------------+--------------------+
       |ISO 8859-1	    |ISO 646it		 |		      |
       +--------------------+--------------------+--------------------+
       |ISO 8859-1	    |ISO 646sv		 |		      |
       +--------------------+--------------------+--------------------+
       |ISO 8859-2	    |MS 1250		 | iconv_8859-2(5)   |
       +--------------------+--------------------+--------------------+
       |ISO 8859-2	    |MS 852		 |		      |
       +--------------------+--------------------+--------------------+
       |ISO 8859-2	    |Mazovia		 |		      |
       +--------------------+--------------------+--------------------+
       |ISO 8859-2	    |DHN		 |		      |
       +--------------------+--------------------+--------------------+
       |MS 1250 	    |ISO 8859-2 	 | iconv_1250(5)     |
       +--------------------+--------------------+--------------------+
       |MS 1250 	    |MS 852		 |		      |
       +--------------------+--------------------+--------------------+
       |MS 1250 	    |Mazovia		 |		      |
       +--------------------+--------------------+--------------------+
       |MS 1250 	    |DHN		 |		      |
       +--------------------+--------------------+--------------------+
       |MS 852		    |ISO 8859-2 	 | iconv_852(5)      |
       +--------------------+--------------------+--------------------+
       |MS 852		    |MS 1250		 |		      |
       +--------------------+--------------------+--------------------+
       |MS 852		    |Mazovia		 |		      |
       +--------------------+--------------------+--------------------+
       |MS 852		    |DHN		 |		      |
       +--------------------+--------------------+--------------------+
       |Mazovia 	    |ISO 8859-2 	 | iconv_maz(5)      |
       +--------------------+--------------------+--------------------+
       |Mazovia 	    |MS 1250		 |		      |
       +--------------------+--------------------+--------------------+
       |Mazovia 	    |MS 852		 |		      |
       +--------------------+--------------------+--------------------+
       |Mazovia 	    |DHN		 |		      |
       +--------------------+--------------------+--------------------+

       +--------------------------------------------------------------+
       |	       Index of Conversion Code Tables		      |
       +--------------------+--------------------+--------------------+
       |       Code	    |	 Target Code	 |  See Manual Page   |
       +--------------------+--------------------+--------------------+
       |DHN		    |ISO 8859-2 	 |  iconv_dhn(5)     |
       +--------------------+--------------------+--------------------+
       |DHN		    |MS 1250		 |		      |
       +--------------------+--------------------+--------------------+
       |DHN		    |MS 852		 |		      |
       +--------------------+--------------------+--------------------+
       |DHN		    |Mazovia		 |		      |
       +--------------------+--------------------+--------------------+
       |ISO 8859-5	    |KOI8-R		 |  iconv_8859-5(5)  |
       +--------------------+--------------------+--------------------+
       |ISO 8859-5	    |PC Cyrillic	 |		      |
       +--------------------+--------------------+--------------------+
       |ISO 8859-5	    |MS 1251		 |		      |
       +--------------------+--------------------+--------------------+
       |ISO 8859-5	    |Mac Cyrillic	 |		      |
       +--------------------+--------------------+--------------------+
       |KOI8-R		    |ISO 8859-5 	 | iconv_koi8-r(5)   |
       +--------------------+--------------------+--------------------+
       |KOI8-R		    |PC Cyrillic	 |		      |
       +--------------------+--------------------+--------------------+
       |KOI8-R		    |MS 1251		 |		      |
       +--------------------+--------------------+--------------------+
       |KOI8-R		    |Mac Cyrillic	 |		      |
       +--------------------+--------------------+--------------------+
       |PC Cyrillic	    |ISO 8859-5 	 | iconv_pc_cyr(5)   |
       +--------------------+--------------------+--------------------+
       |PC Cyrillic	    |KOI8-R		 |		      |
       +--------------------+--------------------+--------------------+
       |PC Cyrillic	    |MS 1251		 |		      |
       +--------------------+--------------------+--------------------+
       |PC Cyrillic	    |Mac Cyrillic	 |		      |
       +--------------------+--------------------+--------------------+
       |MS 1251 	    |ISO 8859-5 	 | iconv_1251(5)     |
       +--------------------+--------------------+--------------------+
       |MS 1251 	    |KOI8-R		 |		      |
       +--------------------+--------------------+--------------------+
       |MS 1251 	    |PC Cyrillic	 |		      |
       +--------------------+--------------------+--------------------+
       |MS 1251 	    |Mac Cyrillic	 |		      |
       +--------------------+--------------------+--------------------+
       |Mac Cyrillic	    |ISO 8859-5 	 | iconv_mac_cyr(5)  |
       +--------------------+--------------------+--------------------+
       |Mac Cyrillic	    |KOI8-R		 |		      |
       +--------------------+--------------------+--------------------+
       |Mac Cyrillic	    |PC Cyrillic	 |		      |
       +--------------------+--------------------+--------------------+
       |Mac Cyrillic	    |MS 1251		 |		      |
       +--------------------+--------------------+--------------------+

FILES

       /usr/lib/iconv/*.so

	   conversion modules

       /usr/lib/iconv/*.t

	   Conversion tables.

       /usr/lib/iconv/geniconvtbl/binarytables/*.bt

	   Conversion binary tables.

       /usr/lib/iconv/iconv_data

	   List of conversions supported by conversion tables.

SEE ALSO

       iconv(1),  iconv(3C),  iconv_1250(5),  iconv_1251(5),  iconv_646(5),  iconv_852(5),  iconv_8859-1(5),   iconv_8859-2(5),   iconv_8859-5(5),
       iconv_dhn(5), iconv_koi8-r(5), iconv_mac_cyr(5), iconv_maz(5), iconv_pc_cyr(5), iconv_unicode(5)

SunOS 5.10							    5 Dec 2001								  iconv(5)