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This document describes new and changed information for the following documents:
The Cisco 805 router now supports the following features:
For more information about these features, see the IOS documentation set.
TinyROM performs the following functions for the Cisco 805 router:
TinyROM has been enhanced to handle multiple IOS boot system commands to ensure that your Cisco 800 series router boots with the IOS software.
The behavior of the IOS boot system command depends on which versions of TinyROM and IOS software you have installed on your router. This section describes the behavior of various combinations of TinyROM and IOS software.
To view which versions of TinyROM and IOS are installed on your router, use the IOS show version command.
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Note For more information about IOS commands, see the IOS documentation set. |
Table 1 summarizes the behavior of different versions of TinyROM and IOS.
| TinyROM Version | IOS Release | TinyROM and IOS Behavior |
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1.3(1) | 12.1(2.2) and later |
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1.2(3) and earlier | 12.1(2.2) and later |
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1.2(1) and earlier | Any | TinyROM does not fall back to booting from an unspecified image in Flash memory. If the single IOS image that you specify fails to boot, the router remains at the boot# prompt. |
Any | 12.1(2.1) and earlier |
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If you have TinyROM version 1.2(2) or later, you can rely on the boot fallback capability to ensure that IOS is booted, provided you have at least one IOS image stored in Flash memory that is not marked for deletion.
If you have TinyROM version 1.2(1) and earlier, ensure that IOS is booted by following this procedure:
| Command | Description | |||
|---|---|---|---|---|
Step 1 | router# configure terminal | Enter the global configuration mode. | ||
Step 2 | router(config)# no boot system flash old-c805-image0 | Clear all existing boot system commands from the configuration. | ||
Step 3 | router(config)# boot system flash c805-nsy6-mw | Specify the boot filename in the configuration.
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Step 4 | router(config)# end | End global configuration mode. | ||
Step 5 | router# write memory | Configure the boot order in IOS. |
The following example shows the screen output for the show run and dir commands:
router# show run Building configuration... Current configuration: ! version 12.1 ! boot config flash:backup-config boot system flash c805-nsy6-mw logging buffered 4096 debugging ! ... router# dir Directory of flash:/ 0 ---- 49088 Jan 20 2000 05:11:57 TinyROM-1.2(1) 1 ---- 49088 May 12 2000 04:43:56 TinyROM-1.3(1) 2 -r-x 3664268 May 19 2000 22:07:32 c805-nsy6-mw 58 -r-- 750 <no date> backup-config 12582912 bytes total (8716288 bytes free) router#
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Note If you have TinyROM version 1.2(1) or earlier installed on a remotely administered router, we strongly recommend that, at a minimum, you upgrade the IOS software. Using the workaround documented in this section always boots IOS, but this procedure is susceptible to user error. Even a minor error could result in IOS not booting on your router. |
If you wish to upgrade TinyROM and IOS software, do the following:
boot# copy flash:full-config running-config
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Note To obtain the name of the full-config file in Flash memory, review the boot config section of the output for the show startup-config command. |
This section describes new and changed information for the Quick Start Guide:
Setting Up the Cisco 805 Router.
The explanation of the CD LED in the Verify the Router Connections table is incorrect. The explanation should be as follows. (The footnote still applies.)
On when the serial interface is up and a carrier signal is detected.
This section describes new and changed information for the Cisco 805 Router Software Configuration Guide.
When upgrading your software from the command-line interface (CLI), replace Step 5 with the following:
Mark the running image in Flash memory as deleted:
router# erase flash
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Note Entering the erase flash command marks the running image in Flash memory as deleted in addition to all other nonrunning files and images. |
By marking the running image in Flash memory as deleted, you can upgrade the software and not change the current running operation of the router.
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To contact by e-mail, use one of the following:
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In North America, TAC can be reached at 800 553-2447 or 408 526-7209. For other telephone numbers and TAC e-mail addresses worldwide, consult the following web site: http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml.
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Posted: Mon Aug 28 11:01:47 PDT 2000
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