Hallo,
i have used the iso in the ESXi 4.1 have the folloring configuration:
ISO -> CD-ROM
Virtual Floppy Disk (with the Backup file on it connected and connected at power)
i have installed the 8.270 and after the first boot i got only the message:
Backup restore skipped
Skipped service in runlevel 3: initag restore
I don't know why, a virtual floppy drive is very easy to mount via vShere Client, i USB drive i can not check, because this can not connected via vShere Client to the Remote Host.
i think this must be a bug, in the description you find no specified file name, only the extension is imported.
kind regards
Alex