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  <channel>
    <title>topic Re: Cannot boot ISR 4321 in Switching</title>
    <link>https://community.cisco.com/t5/switching/cannot-boot-isr-4321/m-p/3343290#M407305</link>
    <description>&lt;P&gt;You need to run the command...&lt;/P&gt;
&lt;P&gt;clear configure boot&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;and then put the correct boot config in.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;Mike&lt;/P&gt;</description>
    <pubDate>Tue, 06 Mar 2018 15:16:35 GMT</pubDate>
    <dc:creator>burleyman</dc:creator>
    <dc:date>2018-03-06T15:16:35Z</dc:date>
    <item>
      <title>Cannot boot ISR 4321</title>
      <link>https://community.cisco.com/t5/switching/cannot-boot-isr-4321/m-p/3343232#M407285</link>
      <description>&lt;P&gt;I cannot boot this router for the life of me. I am stuck in rommon. The image is there:&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;PRE&gt;rommon 1 &amp;gt; dir bootflash:

0   0         drw-     lost+found
0   0         drw-     .prst_sync
0   0         drw-     .installer
0   0         drw-     core
0   0         drw-     .rollback_timer
0   0         -rw-     tracelogs.548
0   0         drw-     tracelogs
0   30        -rw-     throughput_monitor_params
0   549586049 -rw-     isr4300-universalk9.16.06.02.SPA.bin

&lt;/PRE&gt;
&lt;P&gt;When I do&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;PRE&gt;boot bootflash:isr4300-universalk9.16.06.02.SPA.bin&lt;/PRE&gt;
&lt;P&gt;The router just boots to rommon again.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;PRE&gt;rommon 1 &amp;gt; boot usb1:isr4300-universalk9.16.06.02.SPA.bin
boot: unsupported boot device "usb1"
rommon 2 &amp;gt; boot bootflash:isr4300-universalk9.16.06.02.SPA.bin
File size is 0x20c20481
Located isr4300-universalk9.16.06.02.SPA.bin
Image size 549586049 inode num 15, bks cnt 134177 blk size 8*512
############################################################################################################
Boot image size = 549586049 (0x20c20481) bytes

Package header rev 1 structure detected
Calculating SHA-1 hash...done
validate_package: SHA-1 hash:
        calculated ecc5b5b6:ebc75039:f88a7236:2b567f13:e45804bf
        expected   ecc5b5b6:ebc75039:f88a7236:2b567f13:e45804bf

RSA Signed RELEASE Image Signature Verification Successful.
Package Load Test Latency : 8324 msec
Image validated
Detected old ROMMON version 15.4(3r)S5, upgrade required
Upgrading to newer ROMMON version required by this version of IOS-XE, do not power cycle the system.  A reboot will automatically occur for the new ROMMON to take effect.
Booted : 0
Selected : 0
Reset Reason: 0
Switching to ROM 1
Upgrading ROMMON image...
Verifying ROMMON image...
Switching back to ROM 0
ROMMON upgrade was successful...
Copying ROMMON environment...
Switching to ROM 1
Updating ROMMON environment...
Switching back to ROM 0
ROMMON upgrade complete.
To make the new ROMMON permanent, you must restart the RP.
ROMMON upgrade successful.  Rebooting for upgrade to take effect.


Initializing Hardware ...

System integrity status: 00300610
Rom image verified correctly


System Bootstrap, Version 15.4(3r)S5, RELEASE SOFTWARE
Copyright (c) 1994-2015  by cisco Systems, Inc.

Current image running: Boot ROM0

Last reset cause: LocalSoft
Cisco ISR4321/K9 platform with 4194304 Kbytes of main memory

Rommon upgrade requested
Flash upgrade reset 0 in progress
.......
Initializing Hardware ...

Checking for PCIe device presence...done
System integrity status: 0x300610
Rom image verified correctly


System Bootstrap, Version 16.4(3r), RELEASE SOFTWARE
Copyright (c) 1994-2017  by cisco Systems, Inc.


Current image running: *Upgrade in progress* Boot ROM1

Last reset cause: BootRomUpgrade
ISR4321/K9 platform with 4194304 Kbytes of main memory
&lt;/PRE&gt;
&lt;P&gt;Any ideas?&lt;/P&gt;</description>
      <pubDate>Fri, 08 Mar 2019 22:08:45 GMT</pubDate>
      <guid>https://community.cisco.com/t5/switching/cannot-boot-isr-4321/m-p/3343232#M407285</guid>
      <dc:creator>Hulk8647</dc:creator>
      <dc:date>2019-03-08T22:08:45Z</dc:date>
    </item>
    <item>
      <title>Re: Cannot boot ISR 4321</title>
      <link>https://community.cisco.com/t5/switching/cannot-boot-isr-4321/m-p/3343236#M407286</link>
      <description>&lt;P&gt;Try this...&lt;/P&gt;
&lt;P&gt;boot system flash bootflash:isr4300-universalk9.16.06.02.SPA.bin&lt;/P&gt;
&lt;P&gt;I think the syntax is the issue.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;Mike&lt;/P&gt;</description>
      <pubDate>Tue, 06 Mar 2018 14:36:39 GMT</pubDate>
      <guid>https://community.cisco.com/t5/switching/cannot-boot-isr-4321/m-p/3343236#M407286</guid>
      <dc:creator>burleyman</dc:creator>
      <dc:date>2018-03-06T14:36:39Z</dc:date>
    </item>
    <item>
      <title>Re: Cannot boot ISR 4321</title>
      <link>https://community.cisco.com/t5/switching/cannot-boot-isr-4321/m-p/3343237#M407287</link>
      <description>&lt;P&gt;First of course you need to do this...&lt;/P&gt;
&lt;P&gt;no boot bootflash:isr4300-universalk9.16.06.02.SPA.bin&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;mike&lt;/P&gt;</description>
      <pubDate>Tue, 06 Mar 2018 14:37:42 GMT</pubDate>
      <guid>https://community.cisco.com/t5/switching/cannot-boot-isr-4321/m-p/3343237#M407287</guid>
      <dc:creator>burleyman</dc:creator>
      <dc:date>2018-03-06T14:37:42Z</dc:date>
    </item>
    <item>
      <title>Re: Cannot boot ISR 4321</title>
      <link>https://community.cisco.com/t5/switching/cannot-boot-isr-4321/m-p/3343240#M407288</link>
      <description>&lt;P&gt;I dont know how to delete this question. Either way, I found a solution here:&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&lt;A href="https://www.cisco.com/c/en/us/support/docs/routers/4000-series-integrated-services-routers/200678-Troubleshoot-Cisco-4000-Series-ISR-Stuck.html#anc2" target="_blank"&gt;https://www.cisco.com/c/en/us/support/docs/routers/4000-series-integrated-services-routers/200678-Troubleshoot-Cisco-4000-Series-ISR-Stuck.html#anc2&lt;/A&gt;&lt;/P&gt;</description>
      <pubDate>Tue, 06 Mar 2018 14:40:52 GMT</pubDate>
      <guid>https://community.cisco.com/t5/switching/cannot-boot-isr-4321/m-p/3343240#M407288</guid>
      <dc:creator>Hulk8647</dc:creator>
      <dc:date>2018-03-06T14:40:52Z</dc:date>
    </item>
    <item>
      <title>Re: Cannot boot ISR 4321</title>
      <link>https://community.cisco.com/t5/switching/cannot-boot-isr-4321/m-p/3343255#M407295</link>
      <description>&lt;P&gt;Looks like the same solution, great. Glad you got it resolved.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;Mike&lt;/P&gt;</description>
      <pubDate>Tue, 06 Mar 2018 14:51:39 GMT</pubDate>
      <guid>https://community.cisco.com/t5/switching/cannot-boot-isr-4321/m-p/3343255#M407295</guid>
      <dc:creator>burleyman</dc:creator>
      <dc:date>2018-03-06T14:51:39Z</dc:date>
    </item>
    <item>
      <title>Re: Cannot boot ISR 4321</title>
      <link>https://community.cisco.com/t5/switching/cannot-boot-isr-4321/m-p/3343270#M407300</link>
      <description>&lt;P&gt;Now I'm having&amp;nbsp; a different issue, i cannot delete the tftp from bootvar&lt;/P&gt;
&lt;PRE&gt;Router(config)#do sh bootvar
BOOT variable = tftp:\\\\\\\\\\\\\\\\\\\ 255.255.255.255,12;bootflash:/isr4300-universalk9.16.06.02.SPA.bin,12;
CONFIG_FILE variable does not exist
BOOTLDR variable does not exist
Configuration register is 0x2102

&lt;/PRE&gt;
&lt;P&gt;I tried replacing it with&lt;/P&gt;
&lt;PRE&gt;boot system flash bootflash:isr4300-universalk9.16.06.02.SPA.bin

&lt;/PRE&gt;
&lt;P&gt;Can't do it&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;</description>
      <pubDate>Tue, 06 Mar 2018 15:03:19 GMT</pubDate>
      <guid>https://community.cisco.com/t5/switching/cannot-boot-isr-4321/m-p/3343270#M407300</guid>
      <dc:creator>Hulk8647</dc:creator>
      <dc:date>2018-03-06T15:03:19Z</dc:date>
    </item>
    <item>
      <title>Re: Cannot boot ISR 4321</title>
      <link>https://community.cisco.com/t5/switching/cannot-boot-isr-4321/m-p/3343290#M407305</link>
      <description>&lt;P&gt;You need to run the command...&lt;/P&gt;
&lt;P&gt;clear configure boot&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;and then put the correct boot config in.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;Mike&lt;/P&gt;</description>
      <pubDate>Tue, 06 Mar 2018 15:16:35 GMT</pubDate>
      <guid>https://community.cisco.com/t5/switching/cannot-boot-isr-4321/m-p/3343290#M407305</guid>
      <dc:creator>burleyman</dc:creator>
      <dc:date>2018-03-06T15:16:35Z</dc:date>
    </item>
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