10-14-2014 03:15 PM - edited 03-07-2019 09:06 PM
hello
I goofed and uploaded a new image to my Cisco 3750.
I deleted the prior image and set the boot flash statement and then used the command boot system flash: old image/new image
This caused me to enter into switch: mode
I have tried various recovery steps
flash_init
load_helper
The dir flash still show old image which was deleted. It seemed my only course to reciver was to Xmodem
I am using SecureCRT and tried the TRANSFER XMODEM option, no success
I then issued the following (twice:
switch: copy xmodem: flash:c3750-ipservicesk9-mz.122-55.SE9.bin
Begin the Xmodem or Xmodem-1K transfer now...
CCCCCCCCCCxmodem:: I/O error
switch:
What other options can I try to correct this mistake?
Solved! Go to Solution.
10-15-2014 12:57 PM
I know this is kinda obvious, but did you copy/paste the filename in on the command line or did you type it by hand? I recommend copy paste. I only ask because I've been burned by that myself before.
10-15-2014 12:57 PM
copy paste.
I noted the following in the SecureCRT settings. Upload was set to diffent area than .bin file islocated. will try again
10-15-2014 01:08 PM
no success
I issued the format flash
flash_init
reset.
here is what i have now. Does this make any sense?
switch: format flash:
Are you sure you want to format "flash:" (all data will be lost) (y/n)?y
flashfs[0]: 0 files, 1 directories
flashfs[0]: 0 orphaned files, 0 orphaned directories
flashfs[0]: Total bytes: 32514048
flashfs[0]: Bytes used: 1024
flashfs[0]: Bytes available: 32513024
flashfs[0]: flashfs fsck took 7 seconds.
Setting console baud rate to 9600...
Filesystem "flash:" formatted
switch: ?
? -- Present list of available commands
boot -- Load and boot an executable image
cat -- Concatenate (type) file(s)
copy -- Copy a file
delete -- Delete file(s)
dir -- List files in directories
flash_init -- Initialize flash filesystem(s)
format -- Format a filesystem
fsck -- Check filesystem consistency
help -- Present list of available commands
load_helper -- Load and initialize a helper image
memory -- Present memory heap utilization information
mkdir -- Create dir(s)
more -- Concatenate (display) file(s)
rename -- Rename a file
reset -- Reset the system
rmdir -- Delete empty dir(s)
set -- Set or display environment variables
set_bs -- Set attributes on a boot sector filesystem
set_param -- Set system parameters in flash
sleep -- Pause (sleep) for a specified number of seconds
-- MORE --
trap -- Cause a software breakpoint to occur
type -- Concatenate (type) file(s)
unset -- Unset one or more environment variables
version -- Display boot loader version
switch: dir
List of filesystems currently registered:
flash[0]: (read-write)
xmodem[1]: (read-only)
null[2]: (read-write)
bs[3]: (read-only)
switch: flash_init
Initializing Flash...
...The flash is already initialized.
Setting console baud rate to 9600...
switch: reset
Are you sure you want to reset the system (y/n)?y
System resetting...
Base ethernet MAC Address: 00:19:e7:72:7e:80
Xmodem file system is available.
The password-recovery mechanism is enabled.
Initializing Flash...
flashfs[0]: 0 files, 1 directories
flashfs[0]: 0 orphaned files, 0 orphaned directories
flashfs[0]: Total bytes: 32514048
flashfs[0]: Bytes used: 1024
flashfs[0]: Bytes available: 32513024
flashfs[0]: flashfs fsck took 7 seconds.
...done Initializing Flash.
Boot Sector Filesystem (bs) installed, fsid: 3
done.
Loading "flash:/c3750-ipservicesk9-mz.122-55.SE9.bin"...flash:/c3750-ipservicesk9-mz.122-55.SE9.bin: no such file or directory
Error loading "flash:/c3750-ipservicesk9-mz.122-55.SE9.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.
switch:
10-15-2014 02:36 PM
It makes sense. It's looking for an image in flash that matches the boot string. Since you just wiped flash, it will fail because there is no image. You can try the xmodem transfer again.
10-15-2014 12:58 PM
Also, did you delete the old IOS image? Just the little things that could break the process have to be checked.
10-31-2023 11:39 AM
it works
10-15-2014 11:33 AM
So far no matter what BAUD rate I set (9600 or 115200), I get same results!?
10-15-2014 12:05 PM
Baud rate is just for the purposes of transfer speed in this situation. Most folks go with 115200 because it's quite a bit faster than 9600 as far as bitrate/transfer speed. Results will be the same, just that the 9600 rate takes significantly longer.
08-05-2018 06:30 PM
Thanks Antonio, The "3rd C" statement really helped :)
10-15-2014 08:04 AM
Still getting same response
switch: copy xmodem: flash:c3750-ipservicesk9-mz.122-55.SE9.bin
Begin the Xmodem or Xmodem-1K transfer now...
CCCCCCCCCCxmodem:: I/O error
What am I missing??
10-18-2017 05:50 AM
I'ved the same problem, but i solved with this : on my cisco 34xx baud 115200 and on my terminal too 115200.
switch: copy -b 115200 xmodem: flash:me340x-metroipaccessk9-mz.122-60.EZ11.bin
Begin the Xmodem or Xmodem-1K transfer now...
C............................................................................... ..........................................................
File "xmodem:" successfully copied to "flash:me340x-metroipaccessk9-mz.122-60.EZ 11.bin"
switch: dir flash:
Directory of flash:/
2 -rwx 15690496 <date> me340x-metroipaccessk9-mz.122-60.EZ1 1.bin
12179456 bytes available (15818752 bytes used)
12-06-2017 12:26 AM
change the console .
04-02-2024 07:46 PM
Yes,
Hi guys, I also got I/O error issues as I configured with "express console" port on the Cisco 2960x.
Then I changed the console port of "RJ45", it succeeded.
So my conclusion is that RJ45 console port is the correct one to transfer files/IOS image.
Hope my experience can be helpful to everyone.
09-25-2024 01:12 AM
Could you please tell me if you want to change RJ45 on the switch or CRT software? Could you please explain how to make the change?
09-25-2024 06:45 PM
For CRT software, I think you don't need to change it.
But for the Console port or console cable, you can check if the problem is from there.
From my experience, I configured 2960X, there are two console ports what are RJ-45 console port and USB
console port.
It seems the RJ-45 console port is the only one for transferring image.
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide