08-04-2011 07:33 AM - edited 03-07-2019 01:33 AM
Tell me please is there any way to boot catalyst 3750 (3560, 2960) switch from tftp?
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08-04-2011 07:18 PM
*.bin file is 20MB
Ok then. I think I know WHY you are in this predicament. Anyways ...
Download the IOS version 12.2(55)SE. For a 3750 with only 16mb of flash, this version (55) is the highest you can go. It says so in the 12.2(58)SE Release Notes.
08-04-2011 07:36 AM
There really is only one way...if you're looking for suggestions, use FTP and if you're in a secure environment (which I guess you're not if you're using TFTP) use SCP.
08-04-2011 07:44 AM
Thanks but what command i must use?
boot system ftp://xxx.xxx.xxx.xxx/3750.bin
I'm tryed to use
boot system tftp://xxx.xxx.xxx.xxx/3750.bin
and it did not work.
Output was No such device.
P.S. Ping works fine
08-04-2011 07:52 AM
Pavel
Are you using the correct filename for the image. See this link for full details of setting up to load image from tftp -
note, i have not used this on a 3750 switch so it may or may not work, you will need to test.
Jon
08-04-2011 08:57 AM
Hi,
I think it is not possible to boot 3750 switch using tfp. you can try auto install feature.
i have mentioned below the link for auto install feature
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/ffun_c/ffcprt1/fcf002.htm#wp1012146
Otherwise we left with xmodem recovery.
Hope this helps.
Cheers
Somu
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08-04-2011 06:39 PM
Can you elaborate what you are trying to do?
08-04-2011 06:42 PM
on Catalysr 3750G i try to
boot system tftp://xxx.xxx.xxx.xxx/file.bin
May be i must set any variables in rommon mode?
08-04-2011 06:48 PM
Are you trying to boot your appliance from a missing or corrupt IOS?
Recovering Catalyst Fixed Configuration Switches from a Corrupted or Missing Image
08-04-2011 06:51 PM
I try to load IOS that is more than my Catalyst flash )))
08-04-2011 06:55 PM
I try to load IOS that is more than my Catalyst flash
Ok, then why not delete the un-necessary files so the BIN file can fit into your appliance's flash memory?
Can you post the command "dir flash:" please?
08-04-2011 06:57 PM
IOS file 20 MB
Flash size 16 MB
Not a variant ))
08-04-2011 06:59 PM
IOS file 20 MB
Hold on. WHAT file are you talking about? The TAR file (is > 16 mb) or the BIN file (<14 mb)? You should upload the BIN file as per the link I've posted.
If you have a TAR file then use a free proggie called WinRAR to unpack it.
08-04-2011 07:16 PM
*.bin file is 20MB
08-04-2011 07:18 PM
*.bin file is 20MB
Ok then. I think I know WHY you are in this predicament. Anyways ...
Download the IOS version 12.2(55)SE. For a 3750 with only 16mb of flash, this version (55) is the highest you can go. It says so in the 12.2(58)SE Release Notes.
08-04-2011 07:21 PM
Long time ago i boot 2500 router directly from tftp, because ios image was bigger than flash on 2500 router and it works fine!
I try to find the way to do this on Cat3750.
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