<div dir="ltr"><div class="gmail_default" style="font-size:large">NMGLugers and Jared, thank you all for the help and reminders. Yes, the ESP - EFI partition is 512MB, not GB; and yes it seems better to go forward with the current standards. My latest install on a newer machine defaulted to 2 partitions: ESP and /. Swap is in a swapfile. Seems to work smoothly and no complaints on bootup. I can use efibootmgr to assess delay and boot order if needed, but this is a single OS box for a friend. Interesting to be back at the point of checking the bios settings and going with the manufacturers on this. And yes, AHCI for the hard drive - an SSD in this case.</div><div class="gmail_default" style="font-size:large">See you all in a couple of weeks. Thank you, Ted P<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Aug 27, 2020 at 7:21 PM ABQLUG <<a href="mailto:community@abqlug.com">community@abqlug.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Sorry I couldn't make it. I just finished working on the queue at my <br>
full time job.<br>
<br>
UEFI and AHCI is what you want to use.<br>
<br>
I also have had more luck by letting the distro automatically partition <br>
the hard drive. UEFI/EFI expects the /boot partition to be fat32. You <br>
would typically flag it as a EFI partition. I've setup it up plenty of <br>
times manually so I know it can work manually. But it doesn't sound like <br>
you tried /boot with fat32.<br>
<br>
I try to install everything with UEFI. But some older machines that use <br>
"hybrid UEFI" (before UEFI was good). For those 12+ years old machines, <br>
I stick to the legacy BIOS. But only because I'm forced to.<br>
<br>
Performance wise I don't think there is a real difference. With newer <br>
machines, there might be. My newest computer is a AMD bulldozer 8350 on <br>
an old ASUS Sabertooth motherboard.<br>
<br>
There might be a time in the future where hardware will only work with <br>
UEFI. But if the older BIOS supports ACPI, then newer hardware shouldn't <br>
have issues with legacy BIOS.<br>
<br>
The advice I have heard over the years was to avoid UEFI booting in <br>
favor of legacy BIOS. I think the big "fear" was the addition of secure <br>
boot.<br>
<br>
I typically disable secure boot, unless it's a Ubuntu OS running. <br>
Secure boot is more or less of a joke, according to some of the research <br>
I've seen. And some of the less well known distros might not have access <br>
to the secure boot signing keys, so I just leave it off for them.<br>
<br>
I typically recommend trying out UEFI with AHCI (not IDE or RAID) and <br>
leaving secure boot off. It's worked for me for years.<br>
<br>
Also, the EFI shell is interesting. Theoretically if you know the right <br>
shell commands in EFI, you can get away without having any separate <br>
partition of EFI. (fat32)<br>
<br>
~ Jared<br>
<br>
On Aug 27 2020 10:23 AM, Ted Pomeroy wrote:<br>
> I recently made some effort to take advantage of the UEFI settings<br>
> for two laptops: I took a fresh Xubuntu 20.04 usb media and tried to<br>
> install with UEFI support. Didn't work, "Partition table not good" <br>
> was<br>
> the gist of the error. I tried a second usb of the same OS and <br>
> learned<br>
> from it that I need a "Bios boot dedicated partition of at least 5<br>
> GB." Aha, that helped, so I partitioned manually: bios=5Gb, <br>
> root=80Gb,<br>
> home=150Gb and Swap=6Gb. This is where I forgot to give a mount point<br>
> for the home partition, which I corrected later. Still wouldn't boot.<br>
> So instead of panic, I tried Bios setting, first defaults which <br>
> didn't<br>
> work, then adjusted Sata to ACHI, and finally under UEFI, turned that<br>
> ON, and Presto!- Ubuntu appeared in the bios UEFI settings as my only<br>
> UEFI sub-choice. Now it boots and the partitions match what the<br>
> hardware expects.<br>
> The result of my work put me back in touch with examining the BIOS<br>
> settings and thinking through the options and deciding not to accept<br>
> "Legacy mode" as the only or first choice. I wonder what the feelings<br>
> of other Linux users are on this issue. What are the advantages of<br>
> using the UEFI settings vs. the more easily booted "Legacy mode"?<br>
> Ubuntu and Mint make the EFI system work quite well. Unless I am on <br>
> an<br>
> even older machine why use the Legacy?<br>
> Just a few thoughts to remind us of our NMLUG meeting tonight, Aug.<br>
> 27, 5:30-7:00. See the Virtual Meeting link for the Jitsi address at<br>
> Nmglug.org Thank you, Ted P<br>
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