Is it possible to load cisco ios 15.x into an old 2960 or 3560? I tried to do that (study purpose) and it's throwing an error. The error I see apparently has to do while decompressing the image or at least that's what I see. Is it because the boot loader (version 12.2) is unable to handle the new image? Any pointers will be appreciated if it can be made to work.
Below is the output from 2960
**Switch#show version**
Cisco IOS Software, C2960 Software (C2960-LANBASE-M), Version 12.2(35)SE5, RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2007 by Cisco Systems, Inc.
Compiled Thu 19-Jul-07 20:06 by nachen
Image text-base: 0x00003000, data-base: 0x00D40000
ROM: Bootstrap program is C2960 boot loader
BOOTLDR: C2960 Boot Loader (C2960-HBOOT-M) Version 12.2(25r)SEE1, RELEASE SOFTWARE (fc1)
Switch uptime is 1 minute
System returned to ROM by power-on
System image file is "flash:/c2960-lanbase-mz.122-35.SE5/c2960-lanbase-mz.122-35.SE5.bin"
cisco WS-C2960-24TT-L (PowerPC405) processor (revision D0) with **61440K/4088K** bytes of memory.
Processor board ID FOC1201X3F7
Last reset from power-on
1 Virtual Ethernet interface
24 FastEthernet interfaces
2 Gigabit Ethernet interfaces
The password-recovery mechanism is enabled.
64K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address : 00:1F:26:E9:83:80
Motherboard assembly number : 73-10390-04
Power supply part number : 341-0097-02
Motherboard serial number : FOC12012A23
Power supply serial number : AZS115203QK
Model revision number : D0
Motherboard revision number : A0
Model number : WS-C2960-24TT-L
System serial number : FOC1201X3F7
Top Assembly Part Number : 800-27221-03
Top Assembly Revision Number : B0
Version ID : V03
CLEI Code Number : COM3L00BRB
Hardware Board Revision Number : 0x01
Switch Ports Model SW Version SW Image
------ ----- ----- ---------- ----------
* 1 26 WS-C2960-24TT-L 12.2(35)SE5 C2960-LANBASE-M
Configuration register is 0xF
Switch#
**Switch#show flash**
Directory of flash:/
2 -rwx 1373 Mar 1 1993 00:47:09 +00:00 config.text.old
3 -rwx 13475840 Mar 1 1993 00:11:07 +00:00 c2960l-universalk9-mz.152-5c.E.bin
5 -rwx 556 Mar 1 1993 03:00:01 +00:00 vlan.dat
6 -rwx 1204 Mar 1 1993 02:39:44 +00:00 myconfig.txt
7 drwx 192 Mar 1 1993 00:06:12 +00:00 c2960-lanbase-mz.122-35.SE5
626 -rwx 5 Mar 1 1993 00:04:12 +00:00 private-config.text
628 -rwx 1259 Mar 1 1993 00:04:12 +00:00 config.text
32514048 bytes total (10697728 bytes free)
Switch#
**Switch#dir nvram:**
Directory of nvram:/
61 -rw- 1259 <no date> startup-config
62 ---- 5 <no date> private-config
65536 bytes total (64220 bytes free)
Switch#
---------CHANGE THE BOOT OPTION-------------------
Switch(config)#boot system flash:c2960l-universalk9-mz.152-5c.E.bin**
---------AFTER RESTARTING-------------------------
Initializing Flash...
flashfs[0]: 607 files, 19 directories
flashfs[0]: 0 orphaned files, 0 orphaned directories
flashfs[0]: Total bytes: 32514048
flashfs[0]: Bytes used: 21816320
flashfs[0]: Bytes available: 10697728
flashfs[0]: flashfs fsck took 11 seconds.
...done Initializing Flash.
Boot Sector Filesystem (bs) installed, fsid: 3
done.
Loading "flash:c2960l-universalk9-mz.152-5c.E.bin"...uncompress: Unknown mzip segment type: 3
Error loading "flash:c2960l-universalk9-mz.152-5c.E.bin"
Interrupt within 5 seconds to abort boot process.
Loading "flash:/c2960l-universalk9-mz.152-5c.E.bin"...uncompress: Unknown mzip segment type: 3
Error loading "flash:/c2960l-universalk9-mz.152-5c.E.bin"
Interrupt within 5 seconds to abort boot process.
Boot process failed...
The system is unable to boot automatically. The BOOT
environment variable needs to be set to a bootable
image.
WS-C2960-24TT-Lbut it isc2960-lanbasek9-mz.150-2.SE11.bin(or .tar)