Copy From Flash1: to Flash2:

[i.sharkawi]

Hi All,

is it possible to copy the IOS file in Cisco Stackable switch from FLash1 to Flash within the same Switch ?

SW01#copy flash1 flash2

if  yes , is it safe not make any harm to flash or switch

Many Thanks

[Leo Laohoo]

is it safe not make any harm to flash or switch

If the intention is to copy the BIN file from one switch to another, I'd strongly recommend you don't do it.  The reason behind it is, if one doesn't know what he is doing, the file being copied might get corrupted and the switch will boot into ROMmon.

[Joseph W. Doherty]

I don't recall having a problem doing that on the 3750 series, and if you have a mixed (StackWise and StackWisePlus) stacked, I think it's required to perform an upgrade.

I have no experience with the later 3650, 3850 or 2960 stacks, so I cannot comment on them.

[sam.forster]

I know this is an old post, however there's no issue copying the binary files from one flash to the other flashes:

SWITCH01#verify /md5 flash1:/c2960x-universalk9-mz.152-2.E5.bin 651c418f53629343babafa2e36c44a75
.......<break>..............Done!
Verified (flash:/c2960x-universalk9-mz.152-2.E5.bin) = 651c418f53629343babafa2e36c44a75

SWITCH01#copy flash1:/c2960x-universalk9-mz.152-2.E5.bin flash2:/c2960x-universalk9-mz.152-2.E5.bin
Destination filename [c2960x-universalk9-mz.152-2.E5.bin]?
Copy in progress... CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
21273600 bytes copied in 364.167 secs (58417 bytes/sec)

SWITCH01#verify /md5 flash2:/c2960x-universalk9-mz.152-2.E5.bin 651c418f53629343babafa2e36c44a75
.......<break>..............Done!
Verified (flash2:/c2960x-universalk9-mz.152-2.E5.bin) = 651c418f53629343babafa2e36c44a75

SWITCH01#copy flash1:/c2960x-universalk9-mz.152-2.E5.bin flash3:/c2960x-universalk9-mz.152-2.E5.bin
Destination filename [c2960x-universalk9-mz.152-2.E5.bin]?
Copy in progress... CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
21273600 bytes copied in 370.427 secs (57430 bytes/sec)
SWITCH01#

SWITCH01#verify /md5 flash3:/c2960x-universalk9-mz.152-2.E5.bin 651c418f53629343babafa2e36c44a75
.......<break>..............Done!
Verified (flash3:/c2960x-universalk9-mz.152-2.E5.bin) = 651c418f53629343babafa2e36c44a75

Do the verify option to confirm there's no corruption, reducing the risk of being stuck in ROMMON.

[MGomez800]

@sam.forsterThank you so much for the post! it helped me a lot