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    <title>topic Re: Upgrade c3850 ios XE 3 to 16 in Network Security</title>
    <link>https://community.cisco.com/t5/network-security/upgrade-c3850-ios-xe-3-to-16/m-p/4827459#M1100112</link>
    <description>&lt;P&gt;&lt;SPAN&gt;Whats the problem? is it a hardware problem? ... i can't RMA that simply... can you help me to solve that?&lt;/SPAN&gt;&lt;/P&gt;</description>
    <pubDate>Wed, 03 May 2023 08:32:14 GMT</pubDate>
    <dc:creator>Raminkn20</dc:creator>
    <dc:date>2023-05-03T08:32:14Z</dc:date>
    <item>
      <title>Upgrade c3850 ios XE 3 to 16</title>
      <link>https://community.cisco.com/t5/network-security/upgrade-c3850-ios-xe-3-to-16/m-p/4826679#M1100078</link>
      <description>&lt;P&gt;Hi. I try to upgrade my cisco catalyst 3850 from ios xe 3.3.6e to 16.3.9. But i have this issue and switch doesn’t boot.&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&lt;SPAN&gt;Bootable image at @ ram:0x53430388&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN&gt;Bootable image segment 0 address range [0x81100000, 0x81b8adc0] is in range [0x80180000, 0x90000000].&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN&gt;@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@boot_system: 377&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN&gt;Loading Linux kernel with entry point 0x816903c0 ...&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN&gt;Bootloader: Done loading app on core_mask: 0x3f&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&lt;SPAN&gt;### Launching Linux Kernel (flags = 0x5)&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&lt;SPAN&gt;&amp;gt;&amp;gt;&amp;gt; Boot Failed - pulling status and logs:&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN&gt;● mount_packages.service - Mount packages&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN&gt;&lt;SPAN class=""&gt;&amp;nbsp;&amp;nbsp; &lt;/SPAN&gt;Loaded: loaded (/lib/systemd/system/mount_packages.service; static)&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN&gt;&lt;SPAN class=""&gt;&amp;nbsp;&amp;nbsp; &lt;/SPAN&gt;Active: failed (Result: exit-code) since Tue 2023-05-02 13:00:06 Universal; 71ms ago&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN&gt;&lt;SPAN class=""&gt;&amp;nbsp; &lt;/SPAN&gt;Process: 409 ExecStart=/mount_packages.sh (code=exited, status=127)&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN&gt;&lt;SPAN class=""&gt;&amp;nbsp;&lt;/SPAN&gt;Main PID: 409 (code=exited, status=127)&lt;/SPAN&gt;&lt;/P&gt;</description>
      <pubDate>Tue, 02 May 2023 13:34:04 GMT</pubDate>
      <guid>https://community.cisco.com/t5/network-security/upgrade-c3850-ios-xe-3-to-16/m-p/4826679#M1100078</guid>
      <dc:creator>Raminkn20</dc:creator>
      <dc:date>2023-05-02T13:34:04Z</dc:date>
    </item>
    <item>
      <title>Re: Upgrade c3850 ios XE 3 to 16</title>
      <link>https://community.cisco.com/t5/network-security/upgrade-c3850-ios-xe-3-to-16/m-p/4826683#M1100079</link>
      <description>&lt;P&gt;Cold-reboot the switch.&amp;nbsp;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;Make sure the power supplies stop screaming before the restoring power back to the switch.&lt;/P&gt;</description>
      <pubDate>Tue, 02 May 2023 13:36:25 GMT</pubDate>
      <guid>https://community.cisco.com/t5/network-security/upgrade-c3850-ios-xe-3-to-16/m-p/4826683#M1100079</guid>
      <dc:creator>Leo Laohoo</dc:creator>
      <dc:date>2023-05-02T13:36:25Z</dc:date>
    </item>
    <item>
      <title>Re: Upgrade c3850 ios XE 3 to 16</title>
      <link>https://community.cisco.com/t5/network-security/upgrade-c3850-ios-xe-3-to-16/m-p/4827099#M1100105</link>
      <description>&lt;P&gt;i tried it , but it didn't work&lt;/P&gt;</description>
      <pubDate>Wed, 03 May 2023 04:09:11 GMT</pubDate>
      <guid>https://community.cisco.com/t5/network-security/upgrade-c3850-ios-xe-3-to-16/m-p/4827099#M1100105</guid>
      <dc:creator>Raminkn20</dc:creator>
      <dc:date>2023-05-03T04:09:11Z</dc:date>
    </item>
    <item>
      <title>Re: Upgrade c3850 ios XE 3 to 16</title>
      <link>https://community.cisco.com/t5/network-security/upgrade-c3850-ios-xe-3-to-16/m-p/4827103#M1100106</link>
      <description>&lt;P&gt;RMA the switch.&lt;/P&gt;</description>
      <pubDate>Wed, 03 May 2023 04:43:17 GMT</pubDate>
      <guid>https://community.cisco.com/t5/network-security/upgrade-c3850-ios-xe-3-to-16/m-p/4827103#M1100106</guid>
      <dc:creator>Leo Laohoo</dc:creator>
      <dc:date>2023-05-03T04:43:17Z</dc:date>
    </item>
    <item>
      <title>Re: Upgrade c3850 ios XE 3 to 16</title>
      <link>https://community.cisco.com/t5/network-security/upgrade-c3850-ios-xe-3-to-16/m-p/4827148#M1100108</link>
      <description>&lt;P&gt;You could try booting from a TFTP server.&amp;nbsp; The image might be corrupt.&lt;/P&gt;
&lt;P&gt;Here are some links that will hopefully help you troubleshoot:&lt;/P&gt;
&lt;P&gt;&lt;A href="https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst9400/software/release/16-9/configuration_guide/sys_mgmt/b_169_sys_mgmt_9400_cg/recover_from_corrupt_or_missing_file_image_or_in_rommon_mode.html#concept_wkg_tkz_n1b" target="_blank"&gt;https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst9400/software/release/16-9/configuration_guide/sys_mgmt/b_169_sys_mgmt_9400_cg/recover_from_corrupt_or_missing_file_image_or_in_rommon_mode.html#concept_wkg_tkz_n1b&lt;/A&gt;&lt;/P&gt;
&lt;P&gt;&lt;A href="https://www.cisco.com/c/en/us/support/docs/switches/catalyst-3850-series-switches/117552-technote-cat3850-00.html" target="_blank"&gt;https://www.cisco.com/c/en/us/support/docs/switches/catalyst-3850-series-switches/117552-technote-cat3850-00.html&lt;/A&gt;&lt;/P&gt;
&lt;P&gt;&lt;A href="https://community.cisco.com/t5/networking-knowledge-base/recovering-from-a-3850-boot-failure/ta-p/3136638" target="_blank"&gt;https://community.cisco.com/t5/networking-knowledge-base/recovering-from-a-3850-boot-failure/ta-p/3136638&lt;/A&gt;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;</description>
      <pubDate>Wed, 03 May 2023 06:36:46 GMT</pubDate>
      <guid>https://community.cisco.com/t5/network-security/upgrade-c3850-ios-xe-3-to-16/m-p/4827148#M1100108</guid>
      <dc:creator>Marius Gunnerud</dc:creator>
      <dc:date>2023-05-03T06:36:46Z</dc:date>
    </item>
    <item>
      <title>Re: Upgrade c3850 ios XE 3 to 16</title>
      <link>https://community.cisco.com/t5/network-security/upgrade-c3850-ios-xe-3-to-16/m-p/4827247#M1100110</link>
      <description>&lt;P&gt;i recovered that by usb flash and now it works with old version os. but i need to upgrade and it doesn't work with any released 16 os&lt;/P&gt;</description>
      <pubDate>Wed, 03 May 2023 07:45:18 GMT</pubDate>
      <guid>https://community.cisco.com/t5/network-security/upgrade-c3850-ios-xe-3-to-16/m-p/4827247#M1100110</guid>
      <dc:creator>Raminkn20</dc:creator>
      <dc:date>2023-05-03T07:45:18Z</dc:date>
    </item>
    <item>
      <title>Re: Upgrade c3850 ios XE 3 to 16</title>
      <link>https://community.cisco.com/t5/network-security/upgrade-c3850-ios-xe-3-to-16/m-p/4827459#M1100112</link>
      <description>&lt;P&gt;&lt;SPAN&gt;Whats the problem? is it a hardware problem? ... i can't RMA that simply... can you help me to solve that?&lt;/SPAN&gt;&lt;/P&gt;</description>
      <pubDate>Wed, 03 May 2023 08:32:14 GMT</pubDate>
      <guid>https://community.cisco.com/t5/network-security/upgrade-c3850-ios-xe-3-to-16/m-p/4827459#M1100112</guid>
      <dc:creator>Raminkn20</dc:creator>
      <dc:date>2023-05-03T08:32:14Z</dc:date>
    </item>
    <item>
      <title>Re: Upgrade c3850 ios XE 3 to 16</title>
      <link>https://community.cisco.com/t5/network-security/upgrade-c3850-ios-xe-3-to-16/m-p/4828533#M1100155</link>
      <description>&lt;P&gt;i installed 3.6.10 , but after reboot os didn't boot and flash of device was became read only.i cant do any thing.&lt;/P&gt;</description>
      <pubDate>Thu, 04 May 2023 12:16:45 GMT</pubDate>
      <guid>https://community.cisco.com/t5/network-security/upgrade-c3850-ios-xe-3-to-16/m-p/4828533#M1100155</guid>
      <dc:creator>Raminkn20</dc:creator>
      <dc:date>2023-05-04T12:16:45Z</dc:date>
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