How to pick a recovery partition to boot into when there are multiple?
I have noticed when macOS 10.13 is installed in a APFS volume, the recovery partition does not appear on the Startup Manager menu. I happened to have rEFInd installed on my Mac and I found the the missing recovery partition appeared on the rEFInd menu. Although, I do not know for certain, I assume the same would work for Core Storage.

So if you have rEFInd properly installed in a EFI partition, you may be able to use the steps given below to boot your missing recovery partition.


Boot to the Startup Manager. Basically, hold down the option key at startup.
From the Startup Manger, select to boot rEFInd.
From rEFInd, select to boot macOS 10.13 recovery.


What I would do is create a USB flash drive bootable version of rEFInd. Boot from the flash drive and see if your missing recovery partition is accessible. If so, let me know and I will add a how to properly setup rEFInd on your internal drive to appear in the Startup Manager.

Here are the current steps to create the flash drive. I assume downloads go to the ~/Downloads folder. Also, I assume the the USB flash drive is /dev/disk1.


Click here to download the the files.
Execute the following commands in a Terminal application window.

cd  ~/Downloads/refind-flashdrive-0.11.2
diskutil  unmountdisk  disk1
sudo  dd  if=refind-flashdrive-0.11.2.img  of=/dev/disk1