![]() ![]() Transfers take much longer this way, but the only real option is to clear out the image from flash to free up enough space before you copy across the image you want to install, but as mentioned above, you need to check the most recent version that the model can accept, and make sure that you have enough space in flash for the new image, before you go through with the process. If you have a model with more than 16mb you can probably just load up the new IOS from your tftp server and run through the commands to set it as the booted IOS and delete the old IOS, if not, you will need to go through a process where you delete the old IOS and boot to rommon, then use the console cable to copy the new IOS from your tftp server via xmodem, using a program like HyperTerminal to enable the transfer over the rs232 cable. ![]() The 3750's mainly had 16mb of flash memory, which made upgrading the IOS a pain in the ass (some models have more, but you'll need to look up what you have to figure this out). Firstly, look up the most current IOS version available for the model on cisco's website. News By Matt Swider last updated 29 June 2021 iOS 12.4.1 features info for those who havent updated to iOS 13 The iOS 12.4.1 update is live, and is the last one for some older iPhones and. ![]()
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