As i am getting very weird error from cisco 2811 router so i wanna share with your and any one suffered and got solution so please share.
As executing show flash command its shows IOS and home.tar and you can see its file size even I cant delete it or cant upload new IOS.
Delete filename [home.tar]?
Delete flash:home.tar? [confirm]
%Error deleting flash:home.tar (Cannot perform requested operation on a director
-#- --length-- -----date/time------ path
1 13273916 Jun 22 2005 07:27:52 c2800nm-ipbase-mz.123-8.T8.bin
2 1712363260 Mar 25 2026 00:07:26 home.tar
Cisco IOS Software, 2800 Software (C2800NM-IPBASE-M), Version 12.3(8)T8, RELEAS
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2005 by Cisco Systems, Inc.
Compiled Wed 06-Apr-05 16:46 by yiyan
ROM: System Bootstrap, Version 12.3(8r)T7, RELEASE SOFTWARE (fc1)
NIB-PCBL-CHK3701 uptime is 41 minutes
System returned to ROM by reload at 10:58:52 UTC Tue Aug 19 2008
System image file is "flash:c2800nm-ipbase-mz.123-8.T8.bin"
Cisco 2811 (revision 53.51) with 253952K/8192K bytes of memory.
Processor board ID FCZ0926721U
2 FastEthernet interfaces
2 Low-speed serial(sync/async) interfaces
DRAM configuration is 64 bits wide with parity enabled.
239K bytes of non-volatile configuration memory.
62720K bytes of ATA CompactFlash (Read/Write)
Configuration register is 0x2102
Cisco Router is gone MAD.