[c-nsp] Boot from TFTP

[Andriy Bilous]

That could be "broken" TFTP server which doesn't wrap around 64Mb as
cisco doesn't support BLOCKSIZE option. In this case you'll download
over and over until memory/flash is full. The one I've seen it with
was pumpkin, guess there are plenty others around.

On Fri, Jun 24, 2011 at 10:23 PM, Scott Voll <svoll.voip at gmail.com> wrote:
> OK... I'm in a pinch and I need to upgrade a 2821 to a newer ISO and don't
> have time to get a new Flash card.
>
> So i'm trying to boot from TFTP.  But I keep getting a file to large error
>
> %DHCP-6-ADDRESS_ASSIGN: Interface GigabitEthernet0/0 assigned DHCP address
> 10.14.1.53, mask 255.255.255.0, hostname Router
>
> %SYS-6-READ_BOOTFILE_FAIL: tftp://
> 10.14.1.108/c2800nm-advipservicesk9-mz.151-3.T1.bin File read failed -- Not
> enough space.
>
> %SYS-6-READ_BOOTFILE_FAIL: tftp://
> 10.14.1.108/c2800nm-advipservicesk9-mz.151-3.T1.bin File read failed -- Not
> enough space.
>
> %SYS-6-READ_BOOTFILE_FAIL: tftp://
> 10.14.1.108/c2800nm-advipservicesk9-mz.151-3.T1.bin File read failed -- Not
> enough space.
>
> %SYS-3-IMAGE_TOO_BIG: 'tftp://
> 10.14.1.108/c2800nm-advipservicesk9-mz.151-3.T1.bin' is too large for
> available memory (51691544 bytes).
> %SYS-6-READ_BOOTFILE_FAIL: tftp://
> 10.14.1.108/c2800nm-advipservicesk9-mz.151-3.T1.bin File read failed -- Not
> enough space.
>
>
> Config looks like this:  boot system tftp://
> 10.14.1.108/c2800nm-advipservicesk9-mz.151-3.T1.bin
>
> Memory needed is 512mb  I have "Cisco 2821 (revision 53.50) with
> 776192K/10240K bytes of memory."  so I should have enough ram.
>
> What am I missing?
>
> Scott
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