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2500 Series Router Boot problem
- Thread starter 1935
- Start date
That usually means it isn't loading the IOS image correctly. It could be a bad IOS image, or the configuration register may be set to load the ROM(boot) IOS. You can try going into Global mode(conf t) and type 'conf 0x2102', then reload. That will try to restart to the normal flash IOS. If the normal flash IOS fails then it will come back to the (boot). Let us know what happens.
burke
burke
- Thread starter
- #3
Well, then that means that it isn't finding a good IOS image in flash, assuming you don't have the router configured to load from another source (TFTP). Trying doing a 'show flash' and see if it shows any file there, also paste it to this page.
Has the router ever booted correctly? Did you just buy the router? What model 2500 router is it?
Chances are that you'll have to reload the IOS, but I'm just curious if there is any IOS image in the flash. Let us know what happens...
burke
Has the router ever booted correctly? Did you just buy the router? What model 2500 router is it?
Chances are that you'll have to reload the IOS, but I'm just curious if there is any IOS image in the flash. Let us know what happens...
burke
- Thread starter
- #5
Hello!
Here is the config I just got from the "show flash" command:
System flash directory:
File Length Name/status
1 6109056 c2500-d-l_113-6.bin [invalid checksum]
[6109120 bytes used, 2279488 available, 8388608 total]
8192K bytes of processor board System flash (Read/Write)
The model of this router is a Cisco 2503.
We have had the router for sometime now.
This boot problem just recently happen.
Thanks!
Here is the config I just got from the "show flash" command:
System flash directory:
File Length Name/status
1 6109056 c2500-d-l_113-6.bin [invalid checksum]
[6109120 bytes used, 2279488 available, 8388608 total]
8192K bytes of processor board System flash (Read/Write)
The model of this router is a Cisco 2503.
We have had the router for sometime now.
This boot problem just recently happen.
Thanks!
1 6109056 c2500-d-l_113-6.bin [invalid checksum].
I had this problem once and it was a bad memory module.
It has to be one of these:
1. Bad IOS
2. Bad memory in one of your memory bank.
It seems to be IOS because the out put says "c2500-d-l_113-6.bin "
I had this problem once and it was a bad memory module.
It has to be one of these:
1. Bad IOS
2. Bad memory in one of your memory bank.
It seems to be IOS because the out put says "c2500-d-l_113-6.bin "
- Thread starter
- #9
config#boot system flash file name
File name is your IOS name. if you your flash is partition use this command boot system flash:1:file name
Be sure to enter your correct patition #
The link I postted have this info, but you have not read it carefully.
File name is your IOS name. if you your flash is partition use this command boot system flash:1:file name
Be sure to enter your correct patition #
The link I postted have this info, but you have not read it carefully.
CCIEWANNABE
MIS
A checksum failure indicates that the file has not been properly copied into the memory and you need to copy it again.
Verify source file is same size.
Establish a direct Ethernet connection between the TFTP server and the router to download the file.
"Quote"
Before Reloading:
Verify that the new Cisco IOS software has been stored properly.
Use the show flash command to make sure that the file has been saved, that the size is correct, and that you don't have an invalid checksum message. You need to start the installation again if:
The file doesn't appear
The file appears, but is followed by "[invalid checksum]"
The size doesn't correspond to the file size on the TFTP server. Remember: the size is listed in bytes in the router and is sometimes listed in kbytes in TFTP servers.
Verify that the boot system commands are in the right order in the configuration.
The router stores and executes the boot system commands in the order in which you enter them in the configuration file. If a boot system command entry in the list specifies an invalid device or filename, the router skips that entry.
Example:
router>enable
Password:
Router#configure terminal
Enter configuration commands, one per line. End with
CNTL/Z.
Router(config)#
Router(config)#boot system flash c1600-y-l.112-18.P
Router(config)#boot system flash
Link:
Route once; switch many
Verify source file is same size.
Establish a direct Ethernet connection between the TFTP server and the router to download the file.
"Quote"
Before Reloading:
Verify that the new Cisco IOS software has been stored properly.
Use the show flash command to make sure that the file has been saved, that the size is correct, and that you don't have an invalid checksum message. You need to start the installation again if:
The file doesn't appear
The file appears, but is followed by "[invalid checksum]"
The size doesn't correspond to the file size on the TFTP server. Remember: the size is listed in bytes in the router and is sometimes listed in kbytes in TFTP servers.
Verify that the boot system commands are in the right order in the configuration.
The router stores and executes the boot system commands in the order in which you enter them in the configuration file. If a boot system command entry in the list specifies an invalid device or filename, the router skips that entry.
Example:
router>enable
Password:
Router#configure terminal
Enter configuration commands, one per line. End with
CNTL/Z.
Router(config)#
Router(config)#boot system flash c1600-y-l.112-18.P
Router(config)#boot system flash
Link:
Route once; switch many
- Thread starter
- #13
- Thread starter
- #15
Solution:
After upgrading the IOS image it was still coming up with the boot#prompt but when I went into the sh run I discovered that the config-register was still set to 0x2101 so I set it to 0x2102 and reloaded and it work perfectly.
Thank You to everyone who help me on this project
After upgrading the IOS image it was still coming up with the boot#prompt but when I went into the sh run I discovered that the config-register was still set to 0x2101 so I set it to 0x2102 and reloaded and it work perfectly.
Thank You to everyone who help me on this project
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