07-18-2023 08:27 AM
Hi, my router is currently stuck in rommon mode.
Are there any helpful commands out there that will help me understand why my router is stuck in rommon mode?
Is there anything I can test/try to get out of rommon mode?
If need more information please reply, thank you.
Solved! Go to Solution.
07-20-2023 12:53 AM
Hi, Guys thank you for your help, I forgot to mention I replaced the hardware so this is resolved.
Appreciate all the replies.
07-18-2023 06:51 PM - last edited on 07-21-2023 01:40 AM by Translator
Console into the router and reboot the router. Post the complete boot-up process.
Please provide the complete output to the following commands in ROMMON:
set
dir flash:
07-19-2023 02:25 AM - last edited on 07-21-2023 01:41 AM by Translator
Hi, I was trying different things out last night to resolve it.
But I think I have it stuck in a boot loop.
It now keeps spuing out this message:
IOS Image Load Test
___________________
Digitally Signed Release Software
program load complete, entry point: 0x4000000, size: 0x5a5f540
Self decompressing the image : ###################################################################### ##################################################################################################### ##################################################################################################### ##################################################################################################### ##################################################################################################### ##################################################################################################### ##################################################################################################### ##################################################################################################### ############################################# [OK]
*** Machine Check Exception ***
CPU context of the most recent exception:
R0 = 0x38800001 R1 = 0x3ffffde0 R2 = 0xc9f3f775 R3 = 0x00000000
R4 = 0x989e0f9d R5 = 0x00000000 R6 = 0x10000000 R7 = 0x0000758c
R8 = 0x10000000 R9 = 0x128fd3c4 R10 = 0x989e0f9d R11 = 0x1d4ad358
R12 = 0x3ffff704 R13 = 0x03febfb9 R14 = 0x10005848 R15 = 0x00000000
R16 = 0x00000006 R17 = 0x100003b4 R18 = 0x1001dccc R19 = 0x00000006
R20 = 0x00008000 R21 = 0x0d47f58c R22 = 0x10006e28 R23 = 0x0c00029c
R24 = 0x05a56e2c R25 = 0x10001000 R26 = 0x10001014 R27 = 0x0134ade0
R28 = 0x1002ddcc R29 = 0x3a5a09d4 R30 = 0x96ad5391 R31 = 0x10000000
CR = 0x22000042 LR = 0x040009d0 CTR = 0x02aebfe6 XER = 0x20000000
TBU = 0x00000001 TBL = 0xaa164636 DEAR = 0x00000000 IVPR = 0x00000000
PVR = 0x00000000 DBCR0 = 0x00000000 DBCR1 = 0x00000000 DBCR2 = 0x00000000
IAC1 = 0x00000000 IAC2 = 0x00000000 DAC1 = 0x00000000 DAC2 = 0x00000000
CSRR0 = 0x00000000 CSRR1 = 0x00000000 MCSRR0 = 0x04000a20 MCSRR1 = 0x02009200
PC = 0x04000a20 MSR = 0x02009200
CPU SPR Registers:
CSRR0 = 0x00000000
CSRR1 = 0x00000000
CTR = 0x02aebfe6
DAC1 = 0x00000000
DAC2 = 0x00000000
DBCR0 = 0x00000000
DBCR1 = 0x00000000
DBCR2 = 0x00000000
DBSR = 0x20000000
DEAR = 0x00000000
DEC = 0x00011e94
ESR = 0x00000000
IAC1 = 0x00000000
IAC2 = 0x00000000
IVOR0 = 0x00000100
IVOR1 = 0x00000200
IVOR2 = 0x00000300
IVOR3 = 0x00000400
IVOR4 = 0x00000500
IVOR5 = 0x00000600
IVOR6 = 0x00000700
IVOR8 = 0x00000c00
IVOR10 = 0x00000900
IVOR11 = 0x00000b00
IVOR12 = 0x00000d00
IVOR13 = 0x00001400
IVOR14 = 0x00001300
IVOR15 = 0x00001500
IVPR = 0xff800000
LR = 0xff83f1d8
PIR = 0x00000000
PVR = 0x80210030
SPRG0 = 0x45e054ca
SPRG1 = 0x45e054ca
SPRG2 = 0x989e0f9d
SPRG3 = 0x00000000
SPRG4 = 0x040009d0
SPRG5 = 0x00000000
SPRG6 = 0x00000000
SPRG7 = 0x00000000
SRRO = 0x04000a0c
SRR1 = 0x02009200
TBL = 0xb328de9e
TBU = 0x00000001
TCR = 0x04400000
TSR = 0x08000000
USPRG0 = 0x00000000
XER = 0x20000000
BBEAR = 0x00000000
BBTAR = 0x00000000
BUCSR = 0x00000001
HID0 = 0x00004080
HID1 = 0xc5021000
IVOR32 = 0x00000f00
IVOR33 = 0x00001000
IVOR34 = 0x00001100
IVOR35 = 0x00001200
L1CFG0 = 0x00383820
L1CFG1 = 0x00383820
L1CSR0 = 0x00010001
L1CSR1 = 0x00000001
MAS0 = 0x10000000
MAS1 = 0xc0000700
MAS2 = 0xff000002
MAS3 = 0xff000033
MAS4 = 0x00000000
MAS6 = 0x00000000
MCAR = 0x128fd3c0
MCSR = 0x00000008
MCSRR0 = 0x04000a20
MCSRR1 = 0x02009200
MMUCFG = 0x000019c4
MMUCSR0 = 0x00000000
PID0 = 0x00000000
PID1 = 0x00000000
PID2 = 0x00000000
SPEFSCR = 0x00000000
SVR = 0x80e80021
TLB0CFG = 0x04110200
TLB1CFG = 0x101bc010
System Return Info:
count: 19, reason: reset
pc:0x0, error address: 0x0
Stack Trace:
FP: 0x00000000, PC: 0x00000000
FP: 0x00000000, PC: 0x00000000
FP: 0x00000000, PC: 0x00000000
FP: 0x00000000, PC: 0x00000000
FP: 0x00000000, PC: 0x00000000
FP: 0x00000000, PC: 0x00000000
FP: 0x00000000, PC: 0x00000000
FP: 0x00000000, PC: 0x00000000
System Bootstrap, Version 15.0(1r)M8, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 2010 by cisco Systems, Inc.
Total memory size = 1024 MB - DIMM0 = 512 MB, DIMM1 = 512 MB
CISCO3945-CHASSIS with C3900-SPE150/K9 with 1048576 Kbytes of main memory
Main memory is configured to 72/72(dimm 0/1) bit mode with ECC enabled
Readonly ROMMON initialized
program load complete, entry point: 0x4000000, size: 0x18fa0
program load complete, entry point: 0x4000000, size: 0x18fa0
07-19-2023 05:11 AM
07-19-2023 06:52 PM
hi,
try to remove/eject the compact flash card (CF) to force it to ROMMON.
see link below. instruction is the same for 2900 and 3900 ISR.
if this still doesn't work then it's time to replace the hardware. note 3900 had already reached EOL.
07-20-2023 12:53 AM
Hi, Guys thank you for your help, I forgot to mention I replaced the hardware so this is resolved.
Appreciate all the replies.
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