01-29-2020 04:49 PM
I got a catalyst 4948 10G switch that does routing and the whole bite. Well first it was stuck in a boot loop it took me a while but I got it out. Then when I was configuring the switch I screwed up an IP so I figured I would just start over.Of course I hadn't done an tftp server or anything yet and made a back up image so it was clear config all. and it worked like a charm so well in fact I no longer have an image to boot from well I do and can see it it says it is at boot loaded with 0x010 cat4500-entservicesk9-mz.150-2.SG10.bin and I have tried everything can someone please help,and tell me in simple English not some esoteric half speech. How to copy the image to an tftp server which I have now done or just how to get the one I have to get to the right booting position. Any help would be greatly appreciated . I think I am just too dense to get past all the hints and clues they give you or maybe I'm just looking to hard.
01-31-2020 07:20 AM - edited 01-31-2020 07:24 AM
I understand your switch has no image?
here is the recovery procedure
basically there are three steps
1) cofigure some variables to enable network and tftp download
rommon 11 >set
PS1=rommon ! >
RommonBuild=5
ConfigReg=0x2102
SkipDiags=0
BSI=0
RET_2_RTS=13:36:46 UTC Tue Aug 15 2000
RET_2_RUTC=966346606
BootStatus=Failure
BootedFileName=bootflash:cat4000-is-mz.121-11b.EW
RommonVer=12.1(11br)EW
IpAddr=14.18.2.234
Netmask=255.255.255.0
Broadcast=14.18.2.255
Gateway=14.18.2.21
2) boot the image from tftp server
rommon 6 >boot tftp://172.18.125.3/cat4000-is-mz.121-11b.EW
3) when the IOS is loaded and the switch is running
copy the IOS from tftp: to flash:
further details can be found in the linked document
of course you need to modify the adresses used to your tftp server
I assume some basic networking knowledge present, if not, let me know
02-01-2020 02:32 AM
I have my image I am trying to copy it to tftp but I also have a wrong image sitting in 0102 that I can not get to go away.
02-02-2020 08:39 AM
>>> I also have a wrong image sitting in 0102 <<<
???? I do not understand? what is "0102"? it looks lik the boot register? (0x0102)
1) maybe you mean your flash is not writeable?
-> issue the flash_init command
then delete <filename>
or delete /force/recursive if it is not a single file, but a directory
2) you meen the old image is still in the boot variable?
-> show boot
conf t
no boot system flash:/<imagename>
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