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New Member


boot: cannot open "flash:"

boot: cannot determine first executable file name on device "flash:"

I have replaced my flash card but still receiving the same error

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Are you using genuine Cisco flash?  Have you tried to format (or erase) the flash?

New Member


which model and series of a cisco device are you trying this with??

New Member


2811 cisco router

New Member

Re: flash


There could be 3 possibilities.

1) The flash does not contain an IOS. Did you delete the ios by accident.

2) The flash is bad.

3) The flash slot is bad.

I've had slot problems before. Ill tell you what you can do. If you have another working flash in another 2811 router youy can try swapping the flash and try it. If your router still shows the same problem, then he slot is bad. If it does boot sucessfully, then post back and we will fix it here.

P>S> the flash of the 2811 is hot swappable. which means that it  can be removed from a powered router from a production network without affecting its function. just keep in mind 2 things.

1) make sure you put it back after you're done. else you wil have a non bootable router.

2) Make sure you are authorised to perform a flash removal ;-)


Rustom Billimoria

CCIE R&S# 24798

Sent from my BlackBerry® smartphone from Tata Indicom

New Member



Think is I have got a router with no ios in it. so when i try to install the ios i am geeting the error

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