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Beginner

cannot boot switch cisco 2960X, reboot loop

Dear everyone!,

My switch is 2960X cannot start after I config wrong and loop reboot everytime. I was download new IOS: c2960x-universalk9-mz.152-2.E6.bin but nothing change. Everyone help me pls!

Connecting to COM6...
Connected.

Err: Interrupt: Machine check (0x200): Data access error:
PC: 0x1f1a0690, MSR: 0x00021000, ESR: 0x00000000, MCSR: 0x83800000
(Bailed out.)
Err: Interrupt: Machine check (0x200): Data access error:
PC: 0x1f1a0690, MSR: 0x00021000, ESR: 0x00000000, MCSR: 0x83800000
(Bailed out.)
Err: Interrupt: Machine check (0x200): Data access error:
PC: 0x1f1a0690, MSR: 0x00021000, ESR: 0x00000000, MCSR: 0x83800000
(Bailed out.)
Err: Interrupt: Machine check (0x200): Data access error:
PC: 0x1f1a0690, MSR: 0x00021000, ESR: 0x00000000, MCSR: 0x83800000
(Bailed out.)
Err: Interrupt: Machine check (0x200): Data access error:
PC: 0x1f1a06mifs[9]: 628 files, 21 directories
mifs[9]: Total bytes : 122185728
mifs[9]: Bytes used : 63801856
mifs[9]: Bytes available : 58383872
mifs[9]: mifs fsck took 62 seconds.
...done Initializing Flash.
Loading "flash:CISCO.BIN"...Verifying image flash:CISCO.BIN.......................................................................................................................................................................................................................................................................................Image passed digital signature verification
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
File "flash:CISCO.BIN" uncompressed and installed, entry point: Err: Interrupt: Machine check (0x200): Data access error:
PC: 0x1f1a0690, MSR: 0x00021000, ESR: 0x00000000, MCSR: 0x83800000
(Bailed out.)
Err: Interrupt: Machine check (0x200): Data access error:
PC: 0x1f1a0690, MSR: 0x00021000, ESR: 0x00000000, MCSR: 0x83800000
(Bailed out.)
Err: Interrupt: Machine check (0x200): Data access error:
PC: 0x1f1a0690, MSR: 0x00021000, ESR: 0x00000000, MCSR: 0x83800000
(Bailed out.)
Err: Interrupt: Machine check (0x200): Data access error:
PC: 0x1f1a0690, MSR: 0x00021000, ESR: 0x00000000, MCSR: 0x83800000
(Bailed out.)
Err: Interrupt: Machine check (0x200): Data access error:
PC: 0x1f1a0690, MSR: 0x00021000, ESR: 0x00000000, MCSR: 0x83800000
(Bailed out.)

Panic: Too many exceptions: Turn off Machine Check interrupt!!

Using driver version 4 for media type 1
Xmodem file system is available.
Base ethernet MAC Address: 20:4c:9e:2f:e7:80
The password-recovery mechanism is enabled.
USB EHCI 1.00
USB EHCI 1.00
USB Console INIT
Initializing Flash...
mifs[5]: 10 files, 1 directories
mifs[5]: Total bytes : 1806336
mifs[5]: Bytes used : 690688
mifs[5]: Bytes available : 1115648
mifs[5]: mifs fsck took 0 seconds.
mifs[6]: 1 files, 1 directories
mifs[6]: Total bytes : 3870720
mifs[6]: Bytes used : 971264
mifs[6]: Bytes available : 2899456
mifs[6]: mifs fsck took 1 seconds.
mifs[7]: 5 files, 1 directories
mifs[7]: Total bytes : 258048
mifs[7]: Bytes used : 8192
mifs[7]: Bytes available : 249856
mifs[7]: mifs fsck took 0 seconds.
mifs[8]: 5 files, 1 directories
mifs[8]: Total bytes : 258048
mifs[8]: Bytes used : 8192
mifs[8]: Bytes available : 249856
mifs[8]: mifs fsck took 1 seconds.
mifs[9]: filesystem check interrupted!
...done Initializing FErr: Interrupt: Machine check (0x200): Data access error:
PC: 0x1f1a0690, MSR: 0x00021000, ESR: 0x00000000, MCSR: 0x83800000
(Bailed out.)
Err: Interrupt: Machine check (0x200): Data access error:
PC: 0x1f1a0690, MSR: 0x00021000, ESR: 0x00000000, MCSR: 0x83800000
(Bailed out.)
Err: Interrupt: Machine check (0x200): Data access error:
PC: 0x1f1a0690, MSR: 0x00021000, ESR: 0x00000000, MCSR: 0x83800000
(Bailed out.)
Err: Interrupt: Machine check (0x200): Data access error:
PC: 0x1f1a0690, MSR: 0x00021000, ESR: 0x00000000, MCSR: 0x83800000
(Bailed out.)
Err: Interrupt: Machine check (0x200): Data access error:
PC: 0x1f1a0690, MSR: 0x00021000, ESR: 0x00000000, MCSR: 0x83800000
(Bailed out.)

Panic: Too many exceptions: Turn off Machine Check interrupt!!

Using driver version 4 for media type 1
Xmodem file system is available.
Base ethernet MAC Address: 20:4c:9e:2f:e7:80
The password-recovery mechanism is enabled.
USB EHCI 1.00
USB EHCI 1.00
USB Console INIT
Initializing Flash...
mifs[5]: 10 files, 1 directories
mifs[5]: Total bytes : 1806336
mifs[5]: Bytes used : 690688
mifs[5]: Bytes available : 1115648
mifs[5]: mifs fsck took 0 seconds.
mifs[6]: 1 files, 1 directories
mifs[6]: Total bytes : 3870720
mifs[6]: Bytes used : 971264
mifs[6]: Bytes available : 2899456
mifs[6]: mifs fsck took 1 seconds.
mifs[7]: 5 files, 1 directories
mifs[7]: Total bytes : 258048
mifs[7]: Bytes used : 8192
mifs[7]: Bytes available : 249856
mifs[7]: mifs fsck took 0 seconds.
mifs[8]: 5 files, 1 directories
mifs[8]: Total bytes : 258048
mifs[8]: Bytes used : 8192
mifs[8]: Bytes available : 249856
mifs[8]: mifs fsck took 1 seconds.
mifs[9]: 628 files, 21 directories
mifs[9]: Total bytes : 122185728
mifs[9]: Bytes used : 63801856
mifs[9]: Bytes available : 58383872
mifs[9]: mifs fsck took 62 seconds.
...done Initializing Flash.
Loading "flash:CISCO.BIN"...Verifying image flash:CISCO.BIN.......................................................................................................................................................................................................................................................................................Image passed digital signature verification
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

@@@@@@@@@@@@@@@@@@@

switch: dir flash:
Directory of flash:/

2 -rwx 21279744 <date> c2960x-universalk9-mz.152-2.E6.bin
3 -rwx 3096 <date> multiple-fs
4 drwx 512 <date> crashinfo_ext
7 -rwx 18229248 <date> CISCO.BIN
8 -rwx 5 <date> private-config.text
9 drwx 512 <date> c2960x-universalk9-mz.150-2.EX5
648 drwx 512 <date> dc_profile_dir

57015K bytes available (62306K bytes used)

switch:

switch:

8 REPLIES 8
Highlighted
Hall of Fame Community Legend

Contact Cisco TAC.  The

Contact Cisco TAC.  The switch is dead.

Highlighted
Engager

hi,

hi,

before RMA with TAC, could you try:

switch: flash_init
switch: boot flash:c2960x-universalk9-mz.152-2.E6.bin

or revert to old IOS

switch: boot flash:c2960x-universalk9-mz.150-2.EX5

Highlighted
Beginner

Hi johnlloyd_13

Hi johnlloyd_13

switch: flash_init
Initializing Flash...
...The flash is already initialized.

i was boot to c2960x-universalk9-mz.150-2.EX5 or c2960x-universalk9-mz.152-2.E6.bin but switch still reboot loop:

entry point: Err: Interrupt: Machine check (0x200): Data access error:
PC: 0x1f1a0690, MSR: 0x00021000, ESR: 0x00000000, MCSR: 0x83800000
(Bailed out.)
Err: Interrupt: Machine check (0x200): Data access error:
PC: 0x1f1a0690, MSR: 0x00021000, ESR: 0x00000000, MCSR: 0x83800000
(Bailed out.)
Err: Interrupt: Machine check (0x200): Data access error:
PC: 0x1f1a0690, MSR: 0x00021000, ESR: 0x00000000, MCSR: 0x83800000
(Bailed out.)
Err: Interrupt: Machine check (0x200): Data access error:
PC: 0x1f1a0690, MSR: 0x00021000, ESR: 0x00000000, MCSR: 0x83800000
(Bailed out.)
Err: Interrupt: Machine check (0x200): Data access error:
PC: 0x1f1a0690, MSR: 0x00021000, ESR: 0x00000000, MCSR: 0x83800000
(Bailed out.)

Panic: Too many exceptions: Turn off Machine Check interrupt!!

Highlighted
Beginner

Are you able to enter the

Are you able to enter the rommon mode ?

Highlighted
Beginner

Dear Satwant Singh,

Dear Satwant Singh,

I cannot enter to rommon mode.

Highlighted
Beginner

Dear huucuonghumg,

Dear huucuonghumg,

As Leo Laohoo suggested, better to contact with TAC

Highlighted
Beginner

thanks Leo Laohoo and Satwant

thanks Leo Laohoo and Satwant Singh

i will try contact with TAC

Beginner

Did you try booting off USB

Did you try booting off USB Flash

  • Format your USB flash drive with a FAT file system. ...
  • Copy the system IOS image to the USB flash drive.
  • While the Switch is powered off, plug in the USB flash drive to the USB port on the router.
  • Power on the Switch and when it starts to boot up press the Break key to enter ROMMON mode

Otherwise you can contact TAC support and replace the product

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