15.0 install media not booting on HPE MicroServer gen10 plus

I'm unable to boot the 15.0 install media from USB on my HPE MicroServer gen10 plus. I'm hoping for advice on gathering enough information for a useful bug report, given that this machine currently runs 14.3 fine, and that I also just double-checked that the 14.3 install media boots there as well.

When trying to boot the 15.0 installer from USB (with a physically attached drive, but accessing the console over iLO), I see the following graphical output just before the machine spontaneously reboots:

Graphical output, with similar text to the serial console capture below


I also see the same thing when trying a serial console instead:

Code:
Loading kernel...
/boot/kernel/kernel text=0x1865e8 text=0xdbf5d4 text=0x4474db data=0x180+0xe80 data=0x1972e0+0x468d20 0x8+0x1949a0+0x8+0x1b90eb|
Loading configured modules...
can't find '/etc/hostid'
can't find '/boot/entropy'
staging 0x57800000 (not copying) tramp 0x6f5fe000 PT4 0x6f5f5000
Start @ 0xffffffff80387000 ...
Loading splash ok
EFI framebuffer information:
addr, size     0x84000000, 0x300000
dimensions     1024 x 768
stride         1024
masks          0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000

Things I've tried so far, which did not provide me with any additional information:
  • Enabling the "verbose" and "safe mode" boot options
  • Booting into single-user mode
  • Escaping to the loader prompt and setting debug.debugger_on_panic="1" before booting
  • Both the -memstick.img and -dvd1.iso installation media, as written to a USB stick by rufus on Windows
Any advice for gathering more information about why this machine fails to boot the 15.0 install media, while booting 14.3's media successfully? Thanks!
 
P.S., I just discovered that I can get the 15.0 install media to boot here if I switch the system over to legacy BIOS mode. But I'm still interested in gathering info as to why UEFI boot doesn't work with the 15.0 installer.
 
you can also try to boot 15.0 kernel with a 14.3 loader.
if you still have 14.3 stop it at the loader prompt while having the usb media with 15 inserted.
set currdev=disk1p2 (or whatever is correct) and boot
 
Thanks for the suggestions. None of the following worked:
  • Running copy_staging disable at the loader prompt
  • Manually disabling the physical display port in the system configuration utility
  • Changing the virtual display's resolution (I couldn't find a way to do this in iLO)
The only way I've been able to get the 15.0 installer booting on this machine, so far, is by running set console="comconsole" and then booting with a virtual serial port attached. Oddly, when I do that, both the serial and video consoles work.

I think this is worth me opening a PR, I'm just waiting on a response to my Bugzilla account creation request
 
One additional note. I remember on the previous series microserver (the gen10) I needed a firmware update to install and run FreeBSD properly.
Are you on the latest firmware?
 
Thanks for the suggestions. None of the following worked:
  • Running copy_staging disable at the loader prompt
  • Manually disabling the physical display port in the system configuration utility
  • Changing the virtual display's resolution (I couldn't find a way to do this in iLO)
The only way I've been able to get the 15.0 installer booting on this machine, so far, is by running set console="comconsole" and then booting with a virtual serial port attached. Oddly, when I do that, both the serial and video consoles work.

I think this is worth me opening a PR, I'm just waiting on a response to my Bugzilla account creation request

I have the same problem, on the same hardware (microserver gen10+ v2). Found out the hard way after an upgrade from 14.3; I was about to open a bug but wanted to avoid duplications - have you opened a PR yet?
 
I have the same problem, on the same hardware (microserver gen10+ v2). Found out the hard way after an upgrade from 14.3; I was about to open a bug but wanted to avoid duplications - have you opened a PR yet?

I just got my Bugzilla account and opened PR 291461. Thanks for the info that I'm not the only one affected.

I've noticed I can sometimes get 15.0 to boot on my MicroServer if I set console="eficom", but I'm not sure it works consistently. Maybe something you can try if you haven't already downgraded, though.
 
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