Cat3750 - flash problem

Cat3750 - flash problem

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Cat3750 - flash problem dennis 09-03-2008
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Posted by dennis on September 3, 2008, 11:13 am


Hi group,

I would like to upgrade a catalyst 3750E (WS-C3750E-TD-S) with another
IOS version.
But this update doesn't work . I try it with the command "archieve
download-sw" and I got the message can't read flash ..also when I try
to read the flash with dir flash: there is the same output.
For my understand there is a problem with the flash !? Maybe
corrupt ?
Did anyone have a similar problem ?

dennis

Posted by Peter on September 3, 2008, 3:44 pm


Hi Denis,

> I would like to upgrade a catalyst 3750E (WS-C3750E-TD-S) with another
> IOS version.

Is this a single 3750 or a stack of 3750's?

> But this update doesn't work . I try it with the command "archieve
> download-sw" and I got the message can't read flash ..

I had issues trying to convert a pair of single 3750's into a stack
and set them both to use the same version of IOS. The "archive"
command simply would not work for me, it wanted to DOWNGRADE 1 stack
member IOS to reach the others level, so I ended up just adding the
new IOS to EACH flash and setting the BOOT command in the config for
EACH switch, but I had to break the stack to do this manually.
Eventually I got the stack sorted but I had a fun time sorting them
out.

If you copy to FLASH: in a stack, then it copies to ALL stack members
flash. You can also copy to FLASH1, FLASH2, etc to reach specific
stack members if required. If I remember correctly the BOOT command
can be set to apply to all stack members or just 1...

If you are not using a Stack then all this is moot........;-).

> also when I try
> to read the flash with dir flash: there is the same output.

If yu have a stack, then try "dir flash", then "dir flash1", "dir
flash2", etc, and list the output of each.

Good luck.................pk.


--
Peter from Auckland.

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