SHOW VERSION, SHOW FLASH, BOOT SYSTEM & COPY COMMANDS
TEACHER GUIDE
Step 2- Enter show startup-config
no, the configuration setting is only shown at the end of the show version command
Step 3 - Enter show version
the IOS version is shown at the top of the output
the name of the image is shown in the middle of the output
amount of NVRAM and RAM are shown toward the bottom
configuration setting is at the bottom of the output
Step 4 - Config-register setting (assuming we start with 0x2102)
Boot from ROM: 0x2101
Boot from commands in NVRAM: anything in the range 0x2102 through 0x210F
Boot into the ROM monitor: 0x2100
Step 5 - from ROM monitor mode, manually boot the IOS with the b command.
Step 6 - show flash
name and length of IOS image shown in output of command
from the filename codes, you can identify:
the hardware platform (for example, Cisco 4500)
Feaure capabilities (ex. IP subset with IPX and IBM base option)
Run location (ex. run from FLASH), compressed image (or not)
Step7 - The configuration mode commands to specify IOS image load from:
Flash: boot system flash [filename]
A TFTP Server: boot system TFTP address filename
Rom: boot system rom (no, this will not be a full image)
Step 8 - copy flash tftp
preparation details needed:
IP address of TFTP server
Software image name and path
Assurance of enough free flash memory
good idea?
This command stores a backup copy of the image in flash to a TFTP server, so it is available to restore later with the copy tftp flash command
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