With the usb plugged into the usb port, not the hub when you first turn on the system pressing f9, do you get a boot menu showing the usb as one of the boot options? There may be two different boot options for the usb.
If that doesn't work, press esc when you first boot does that bring up a list of options where one is for a boot menu?

With the ubuntu usb plugged in run efibootmgr and see if this is still true:
If so
reboot and see it the ubuntu usb will boot.

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i would like to know what will the commands do?

i am not sure i understand if this is two separate commands, or first to find out if *boot9999 is the same or not (which i dont know how to do) and then a command following the 'if so...'


i would also like to ask, why is it that the every usb has been assigned both by 9999 and 0003 at different times in the history of my working on this? i have some prints i made during testing that i will attach.

Attached Thumbnails

         

i am assuming i should do this first before what you suggest in your next quote, i will get back to you soon...

oh, i got it-
OS Boot Mgr (UEFI)
OS Boot Mgr (UEFI)
USB Hard Dive (UEFI)
Boot from EFI file

press up or down arrows to change option
ENTER to select option
press f10 to BIOS setup Options
ESC to exit


this is what i think i saw when i first installed it-because it asks me what i want to boot from. i am sure i chose boot from usb hard drive, i would have had no idea to think efi would be an option for me-i thought that was the old fashioned way.

but i think i remember you suggesting that once earlier in this thread (i will have to go back and check) and if you did, i will try it. if i am wrong, i will wait to see what you say.

oh, i am beginning to get it...i think...


later:
in my first post i wrote this:
OS Boot Manager- UEFI
OS Boot Manager- UEFI Windows Manager
Boot from EFI file
which is what the f9 screen shows without the flash.

i am thinking i could set it to boot from efi file and that would be permanent and apply to both the usb flash and the hard drive on the hp...is that possible? and it sounds very promising.

post 6-
f9 with flash plug connected gave me four options:
OS Boot Manager UEFI
OS Boot Manager Windows UEFI
Boot from EFI file
USB device (i dont remember the exact wording on this one, i was stunned to see it)

this was when i tried the lubuntu boot drive and it worked, but it is not the same as the f9 i looked at today with the ubuntu boot drive plugged into the hp. i think i had highlighted the usb drive but not selected it and was trying to make up my mind what to do, so it just booted...my guess is the first option.

i dont know what would cause there to be two different orders in the f9, but i will try the lubuntu again today to see if it is the same as it was in post #6 or does it today match the ubuntu live boot flash. (out of curiousity if nothing else).

post #7-
here i did not understand what you meant, and i still dont. if it is relevant now, can you explain or if it doesnt matter, never mind...

regarding post 65-

i checked the lubuntu flash on f9 and today it is the same as the ubuntu. that suggests to me that the boot order has been changed before when i was not able to reach that screen, so efimanager must have done something at some time or other, and there may be some reason why i might not have been able to verify that at the time.

i am thinking i should change it on that screen to boot from efi but i am thinking if i do it will automatically boot that way, and i dont want to try it until i am sure you suggest it.

Pressing f9 to change boot order is temporary, on next reboot will go back to default boot order.

If the ubuntu flashdrive is plugged in when you reboot the flashdrive should boot without having to press a f-key, the -n stands for boot next and is only a temporary change in the default bootorder.



This boot value in the firmware/bios is for booting windows and is no longer valid:

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colorpurple-
ok, i get it now...you want me to plug the ubuntu live boot flash directly into the port on the hp and run the command [efibootmgr -v] and then if the identity or description of boot9999 is “USB Drive (UEFI) PciRoot(0x0)/Pci(Oxid,0x0)/USB(16,0)..BO” i should run the next command. sorry, i didnt even recognize all those funny things after USB Drive, I was so focused on the item and the boot order. I see them now.

since i think i know what you mean now, i will try that. i hope if it does work that there is a way to change it permanently. if it boots i will just do the ‘try’ option and see if anything is weird, and then come back and tell you what happened.


i didnt like the windows boot manager being in there. i read that it cant be removed, only disabled, but i didnt follow up on that. or maybe actually the windows boot manager really isnt there, and that is why things dont work the way as expected...? maybe it is the entry in the hp bios that is the problem and it is that which cant be removed...?

To delete the windows boot for bios/firmware:

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well, the good news is that the flash booted nicely-
the bad news is it got stuck and i had to poweroff

this is what happened the only other time i was able to get it to boot after the install. i see the splash screen, which i now recognize as the same errors i have on the hp install and upgraded version 22.04.1, and then the logo...and a few minutes wait, before the two squares with 'try' ;and 'install', but when i click on install appear; there is no response. since i have been plagued by a slow response to my typing in the password at logins ever since i installed ubuntu on the hp, i waited as long as i could in case it would eventually connect. while i was waiting, i was able to choose a different language-and it read in spanish, also i raised the level of the volume for the speakrers in the upper menu bar on the screen, turned off bluetooth, but it was turned back on immediately. i waited for eight minutes, and then i thought it was hopeless, so i tried to restart but no response. i tried to logout but no response, exactly the same as the last time when i was able to boot it.

are you thinking i should remove the windows boot manager? i was wondering if that is the reason for my slow login every day.

does it actually remove something from the bios or does it just remove the entry from the boot sequence?

No, it won't improve the boot speed of Ubuntu. It will remove the entry and you should not see it in the BIOS. Since you are using an HP, efibootmgr probably won't work anyway.

Did you try the "safe graphics" menu entry?

it worked to change the boot sequence, or at least sometimes it works. i was able to use the ubuntu flash, except that it didnt work, it got stuck at the language screen. that has happened twice now, i am thinking there must be something wrong with the flash...i can try the lubuntu flash again and see if it works all the time with that command for efimanager. or i could let it sit there stuck longer, i have read some users had to wait as long as thirty minutes and then can get unstuck by itself...but that was not necessarily on trying to boot from a flash drive.

what is the difference between --n and -n? i had been using the double dash in the command i was using before while i was testing it.

i didnt see any safe graphics menu entry. i have heard about using 'safe mode' but i have never done it. if something works in safe mode but not in normal use, then what does that mean?

There is no --n it is -n or --bootnext