Delete Old version of IOS from the device

Switch#sh flash

Directory of flash:/

    2  -rwx        3096   Mar 1 1993 00:01:40 +00:00  multiple-fs
    3  -rwx        1934   Mar 1 1993 00:01:40 +00:00  private-config.text
    4  -rwx        1781   Mar 1 1993 00:01:40 +00:00  config.text
    5  -rwx    15072310   Mar 1 1993 00:24:49 +00:00  c3560-ipbasek9-mz.122-58.SE2.bin
    6  -rwx    11752155  Jun 28 2011 08:03:25 +00:00  c3560-ipbasek9-mz.122-55.SE1.bin

32514048 bytes total (5680128 bytes free)
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our old version of IOS is c3560-ipbasek9-mz.122-55.SE1.bin

Login in to cisco device using console

in Enable mode, put following command to delete old IOS image file/directory

#delete /recursive /force flash:/c3560-ipbasek9-mz.122-55.SE1.bin

#wr

#reload