REFIND can't boot ubuntu 18.04

[Bougron]

Hello

I have been using refind for a few months to launch ubuntu versions.
I master the launch of refind in secure and unsecured mode.

A few days ago I deactivated refind to install the future version of ubunti 18.04
kernel 4.13.0-17
It works very well and boote normally.

Today, I reactivated refind.
It detects very well version 16.04 and version 18.04

It continues very well to boot version 16.04 but can not boot version 18.04

In secure mode and in non-safe mode, with normal boot or in recovery mode the error message is always the same.

exit_boot() failed!
efi_main() failed!

I do not know what to think.
I will try to install refind again with ubuntu 18.04 but it does not seem to me normal that the refind of version 16.04 is unable to launch version 18.04.

With bad luck, the refind of version 18.04 will not be able to launch the UBUNTU 16.04 !!!

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1740031/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[Bougron (francis-bougron)]

Hello
I found the cause and a way around the problem but it does not suit me at all.

My disk environment is as follows:
A RAID-1 storage consisting of two 500-GB disks. One of which is connected to a USB3 port.
A 2TB internal storage disk.
A 120 GB SSD containing software.

In version 16.04, the SSD is always seen as being SDA.
and the external drive is named SDD.

In version 18.04 (and also 17.10)
The external drive is named SDA and the SSD is named SDB
It is in this context that I can not boot and that I have the incident indicated.

In version 18.04 (and also 17.10) if I put the external drive in power OFF mode, I will be able to boot normally because the SSD will be seen as SDA.
However RAIDS1 will be out of order. It will have to be repaired. This is not satisfactory.

Mybe I can solve the problem by putting options in the file
refind_linux.conf?
but I do not know which ones.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.