Hi all!! In our 3660 cisco router IOS has got corrupted(FLASH IOS) & Iam not able to boot thro. ROM also (ROM BOOT not working).The only mode which is working is ROMMON mode.When I try to load the IOS thro XMODEM I gt the following error(In ROMMON mode) rommon 1 > xmodem c3660-js-mz.120-7.XK2.bin..bin Do not start the sending program yet... File size Checksum File name 8059392 bytes (0x7afa00) 0x7520 c3660-js-mz.120-7.XK2.bin..bin WARNING: All existing data in flash will be lost! Invoke this application only for disaster recovery. Do you wish to continue? y/n [n]: y Ready to receive file c3660-js-mz.120-7.XK2.bin..bin ... BB0BB0 Timeout waiting for data - aborting download... rommon 2 > confreg 0x2101 rommon 3 > reset System Bootstrap, Version 12.0(6r)T, RELEASE SOFTWARE (fc1) Copyright (c) 1999 by cisco Systems, Inc. C3660 processor with 65536 Kbytes of main memory Main memory is configured to 64 bit mode with parity disabled loadprog: error - on read during ELF program load requested 10471860 (0x9fc9b4) bytes, got 8039940 (0x7aae04) boot: cannot load "flash:" System Bootstrap, Version 12.0(6r)T, RELEASE SOFTWARE (fc1) Copyright (c) 1999 by cisco Systems, Inc. C3660 processor with 65536 Kbytes of main memory Main memory is configured to 64 bit mode with parity disabled rommon 1 > b loadprog: error - on read during ELF program load requested 10471860 (0x9fc9b4) bytes, got 8039940 (0x7aae04) boot: cannot load "flash:" So as u see in the above output I hv tried XModem & also ROMboot but without any success.Also I tried loading the backup of the IOS for 3660 which i had,thro. TFTP server by giving the following command b c3660-js-mz.120-7.XK2.bin..bin:192.10.10.20 where 192.10.10.20 is the address of the TFTP server but no use. If any one of u hv faced similar problem,Can u pl. mail the solution with detailed sequence of steps to solve it. Thanx & warm regards ss2001 Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=14620&t=14620 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]