Well, Gang, it looks to me as though I am screwed.
First I booted the computer from a boot-only CD. Then chose the Shell.
First, I tried
efibootmgr. The system returned that my unit was not capable of that.
So, next I did
gpart show ada1. The result:
Then, I did
bsdlabel -w -An /dev/ada1
Disk amnesiac? Innersting, to be sure. Next;
And every possible iteration of this returns the same: unknown disk type.
And the same thing happens here, no matter which partition I choose.
Then, I decide to follow this advice:
If you ever happen to use a LiveCD to restore or diagnose some computer and you have only the Bootable DVD you can use this method to install additional software that you need in the ram drive. In the following example i will show you how to boot and install sysutils/testdisk midnight-commander...
forums.freebsd.org
in order to attempt to install the driver for my Realtek NIC, but despite this
being successful, and finding the file, if_re.ko, when I try to load it, the system returns that that file is already in the kernel:
In any case, I cannot get the NIC activated.
There may be a way to copy the bootstrap necessaries to a USB drive, and copy it from there to ada1. Otherwise, I have not been able to figure out how to get my ada1 to mount, nor boot.
Thanks for the help, folks.
Ken