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Changeing flash: from read only to read write

Vikingplanet
Level 1
Level 1

good day.

 

i have a Catalyst 3650 that i was going to delete the config file from. and for som reason it was set up previously with the wrong enable password. so i went to ROMMON to delete the config file from there, but then i noticed that flash: was in read only mode and i cant delete the file because of it. so my question is. is there a way to change it to read write, and if so, how? or is there another way i can delete the config file?

 

switch: delete flash:nvram_config
Are you sure you want to delete "flash:nvram_config" (y/n)?y
File "flash:nvram_config" not deleted -- read only file system
switch: dir

List of filesystems currently registered:

              xmodem[0]: (read-only)
                null[1]: (read-write)
                  bs[3]: (read-only)
               flash[18]: (read-only)
                tftp[19]: (read-write)
20 Replies 20

Hi,

If you are not able to copy from usbflash to flash then try with Xmodem recovery option.

 

HTH

Abheesh

sorry to say but have tried this as well. not able to copy thru xmodem as well. as flash and xmodem both showing read only.

Have you tried the following:

 

rommon 2> dir usbflash0:

 

I your see your file then proceed with the following.

 

rommon 3> boot usbflash0: your file name.124-3.bin

 

 

didn't work. same issue

I had the same problem with trying to upgrade 3850s.  First the *.bin wouldn't copy across, it would time out or something.  Then the power went out over the weekend and 2 switches, failed in the copies, wouldn't come up.  The *.bin or all *.pkg files were gone out of flash:.  Couldn't copy the *.bin back via xmodem, SCP, TFTP, or from USB.  Every time I got an error that flash: was Read Only.  Even though listing the files in flash (dir flash:) would show RW.

 

Ended up doing the emergency-install command from *.bin on a USB drive (this puts all the pkg files in flash:).  Then had to copy the *.bin from USB to flash:.  Then finally when to conf t and updated boot system *.bin.  Rebooted and everything came back up with previous config running!

 

Thanks to those that offered different things to try.  Still not sure why this all happened but now I know how to fix it!

Hello,

For a 3850-12S, at the end, what are the final commands and the final method to obtain a real Factory Reset (unboxing) ?
Regards,