Cisco 2525 Betriebsanweisung PDF herunterladen (Seite 137)

Maintaining the Cisco 2524 and Cisco 2525 Routers A-25

Copying a Cisco IOS Image to Flash Memory

Bit 13 determines the server response to a bootload failure. Setting bit 13 causes the server

to load operating software from ROM after ﬁve unsuccessful attempts to load a boot ﬁle

from the network. Clearing bit 13 causes the server to continue attempting to load a boot

ﬁle from the network indeﬁnitely. By factory default, bit 13 is set to 1.

Enabling Booting from Flash Memory

To disable Break and enable the boot system ﬂash command, enter the conﬁg-register

command with the value shown in the following example:

router> enable

Password:

enablepassword

router# config term

Enter configuration commands, one per line.

Edit with DELETE, CTRL/W, and CTRL/U; end with CTRL/Z

config-reg 0x2102

router#

Copying a Cisco IOS Image to Flash Memory

You may need to copy a new Cisco IOS image to Flash memory whenever a new image or

maintenance release becomes available. To copy a new image into Flash memory (write to

Flash), you must ﬁrst reboot from ROM and then copy the new image into Flash memory.

You cannot copy a new image into Flash memory while the system is running from Flash

memory. Use the copy tftp ﬂash command for the copy procedure.

Take the following steps to copy a new image to Flash memory:

Step 1 Enter the show ﬂash command to make sure there is enough space available

before copying a ﬁle to Flash memory. Compare the size of the ﬁle you want to

copy to the amount of available Flash memory displayed.

Step 2 Make a backup copy of the current image.

Step 3 Enter enable mode and then enter the copy tftp ﬂash command to copy the new

image into Flash memory:

Router> enable

Password:

enablepassword

Router# copy tftp flash

1 2 ... 132 133 134 135 136 137 138 139 140 141 142 ... 165 166

Keine Kommentare

Cisco 2525 Betriebsanweisung Seite 137