using c3500xl-c3h2s-tar.120-5.WC17.tar to update it.
I get this error
Determining the total flash size.
Extracting the info file from the tar image.
Reading the info file of the tar image file.
Actual free space 361472
Required Space 2923984
Software upgrade failed.
There is insufficient flash space for the new image.
Total free space required is 2923984 bytes.
Remove unwanted files from the flash and upgrade again.
the 3512 has a 3mb flash drive. After the switch is live, can I then delete everything in the flash to free up the entire 3MB to upgrade with?
is there a better way?
You will have to get rid of the existing file first . Then just copy your new file into flash.
Do not turn off the switch before getting a new image and boot statement inserted.
You can do as above or try and follow cisco's too long explanation here .