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    <title>topic Re: Pix 515 chksum error in Network Security</title>
    <link>https://community.cisco.com/t5/network-security/pix-515-chksum-error/m-p/402820#M531869</link>
    <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;try to calculate teh checksum of the image you are downloading by this tool&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;A class="jive-link-custom" href="http://www.nullriver.com/index/products/winmd5sum" target="_blank"&gt;http://www.nullriver.com/index/products/winmd5sum&lt;/A&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;if the checksum is correct. then you have a flash problem&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
    <pubDate>Tue, 18 Oct 2005 19:58:59 GMT</pubDate>
    <dc:creator>nkhawaja</dc:creator>
    <dc:date>2005-10-18T19:58:59Z</dc:date>
    <item>
      <title>Pix 515 chksum error</title>
      <link>https://community.cisco.com/t5/network-security/pix-515-chksum-error/m-p/402818#M531867</link>
      <description>&lt;P&gt;I have a serious problem with Pix 515 UR. I have upgraded the system to 6.3.5 and the Pix didn't boot after reload. The monitor shows the following error:&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;imgsum_config: sumval(0xe5be) md5(0x95937073 0x75b817db 0x54d7811a 0xba7d0214)&lt;/P&gt;&lt;P&gt;imgsum_verify: chksum(0x   0) md5(0x09e1b9df 0xc9f06c06 0x12e9f5df 0xdf89f7cb)&lt;/P&gt;&lt;P&gt;Panic: kernel - The checksum verification for this image failed.&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;I can't upload any image newer than 6.0.1. 5.2.3 and 6.0.1 work OK until restart. After reloading the unit I get the same checksum error. What's strange is than chksum is always shown as (0x   0). I've had erased the flashfs with erasedisk622.bin and it didn't help.&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Any help will be very appreciated.&lt;/P&gt;&lt;P&gt;Regards&lt;/P&gt;&lt;P&gt;Jan&lt;/P&gt;&lt;P&gt;&lt;A href="mailto:janslu@grupaiis.pl" target="_blank"&gt;janslu@grupaiis.pl&lt;/A&gt; &lt;/P&gt;</description>
      <pubDate>Fri, 21 Feb 2020 08:27:55 GMT</pubDate>
      <guid>https://community.cisco.com/t5/network-security/pix-515-chksum-error/m-p/402818#M531867</guid>
      <dc:creator>jan.slusarczyk</dc:creator>
      <dc:date>2020-02-21T08:27:55Z</dc:date>
    </item>
    <item>
      <title>Re: Pix 515 chksum error</title>
      <link>https://community.cisco.com/t5/network-security/pix-515-chksum-error/m-p/402819#M531868</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;could you verify the md5 checksum of the image you have. try downloading from a different pc or a different browser..&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Tue, 18 Oct 2005 19:56:52 GMT</pubDate>
      <guid>https://community.cisco.com/t5/network-security/pix-515-chksum-error/m-p/402819#M531868</guid>
      <dc:creator>nkhawaja</dc:creator>
      <dc:date>2005-10-18T19:56:52Z</dc:date>
    </item>
    <item>
      <title>Re: Pix 515 chksum error</title>
      <link>https://community.cisco.com/t5/network-security/pix-515-chksum-error/m-p/402820#M531869</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;try to calculate teh checksum of the image you are downloading by this tool&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;A class="jive-link-custom" href="http://www.nullriver.com/index/products/winmd5sum" target="_blank"&gt;http://www.nullriver.com/index/products/winmd5sum&lt;/A&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;if the checksum is correct. then you have a flash problem&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Tue, 18 Oct 2005 19:58:59 GMT</pubDate>
      <guid>https://community.cisco.com/t5/network-security/pix-515-chksum-error/m-p/402820#M531869</guid>
      <dc:creator>nkhawaja</dc:creator>
      <dc:date>2005-10-18T19:58:59Z</dc:date>
    </item>
    <item>
      <title>Re: Pix 515 chksum error</title>
      <link>https://community.cisco.com/t5/network-security/pix-515-chksum-error/m-p/402821#M531870</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Hi,&lt;/P&gt;&lt;P&gt;I did... I have downloaded multiple images from 3 computers. MD5 was always OK. But it must have been a hardware problem. I have finished the last tests on thursday and left the box on the table for the weekend.  On monday I tried to test some more and it doesn't boot up. The power LED doesn't turn on at all. The fans are working fine. I have no idea what's wrong.&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Wed, 19 Oct 2005 06:25:19 GMT</pubDate>
      <guid>https://community.cisco.com/t5/network-security/pix-515-chksum-error/m-p/402821#M531870</guid>
      <dc:creator>jan.slusarczyk</dc:creator>
      <dc:date>2005-10-19T06:25:19Z</dc:date>
    </item>
    <item>
      <title>Re: Pix 515 chksum error</title>
      <link>https://community.cisco.com/t5/network-security/pix-515-chksum-error/m-p/402822#M531871</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;I am having the same error now, after doing a very similar thing.&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;UL&gt;&lt;LI&gt;Tried to upgrade PIX 515 to pix622.bin.&lt;/LI&gt;&lt;LI&gt;Pix didn't boot after reload.&lt;/LI&gt;&lt;LI&gt;Reverted to pix601.bin.&lt;/LI&gt;&lt;LI&gt;Worked, and all my usage of the PIX works as before.&lt;/LI&gt;&lt;LI&gt;However, upon reload I get the following error:&lt;/LI&gt;&lt;/UL&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt; Reading 2445824 bytes of image from flash.&lt;/P&gt;&lt;P&gt; 32MB RAM&lt;/P&gt;&lt;P&gt; imgsum_config: sumval(0x1f8e) md5(0x95937073 0x75b817db 0x54d7811a 0xba7d0214)&lt;/P&gt;&lt;P&gt; imgsum_verify: chksum(0x&amp;nbsp;&amp;nbsp; 0) md5(0xf9d77cec 0xfca32e88 0xb13f21e9 0xfa81733b)&lt;/P&gt;&lt;P&gt; Panic: kernel - The checksum verification for this image failed.&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Fri, 04 Nov 2011 13:09:27 GMT</pubDate>
      <guid>https://community.cisco.com/t5/network-security/pix-515-chksum-error/m-p/402822#M531871</guid>
      <dc:creator>rdefuria</dc:creator>
      <dc:date>2011-11-04T13:09:27Z</dc:date>
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