I am not able to get a SUP720 to boot the second image specified, if the CF card is removed.
I have just finished converting a SUP720-BASE from Hybrid mode to Native IOS mode. I had a small issue during this procedure, where I didn't format the CF before I put the native IOS image on it, but I stopped, formatted it, recopied IOS and went on, that seems fixed.
I then formatted sup-bootflash: and bootflash: (each 64M) and copied the "backup" IOS image on them. I then use:
boot system flash disk0:s72033-ipservicesk9_wan-mz.122-33.SXH2a.bin
boot system flash sup-bootflash:s72033-pk9sv-mz.122-17d.SXB8.bin
boot system flash bootflash:s72033-pk9sv-mz.122-17d.SXB8.bin
to specify a 'backup' image. This is confirmed by sh bootvar:
But when I remove the CF card and reload the switch, it fails to find the disk0: image, and drops into ROMMON. I am then able to manually boot from the bootflash: image.
But I am expecting that the switch should go the second image specified, if the first image is unavailable. My partner says at least one other SUP720 (a 3B) exhibits the same behavior, but we both think the second imagte specified should be booted automatically.
We can't find any reference to a conf-reg setting ort anything that would turn this on or off. Anyone have knowledge of how this is supposed to work? TIA
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