Hello, Thanks. How did you get grub installed and how to get it to beep? Is the EFI boot menu standardized in any way? Thanks. Dave. On 2/24/19, Jason White <jason@jasonjgw.net> wrote:
When the machine is booting, there should be a key combination you can press to reach the EFI boot menu. Then, you need to select the USB drive as the boot device. At that point, you can boot into whatever operating system is on that drive. If it's Linux, you'll have the usual commands available, including those which I mentioned in the previous post.
On my laptop, F12 invokes the boot menu. I then press the down-arrow key an appropriate number of times to reach the USB device and press enter. The exact key sequence depends on your machine and how the boot order is defined. For example, on your machine, the key to initiate the boot menu probably isn't F12.
I now have Grub installed on my laptop so that it beeps fairly early in the boot process, and I can use arrow keys to select either Linux or Windows, both of which are installed on the SSD. Thanks are owed to participants in the BRLTTY mailing list for helping with the Grub configuration.
On 2/23/19, 20:12, "David Mehler" <dave.mehler@gmail.com> wrote:
Hello,
Adding to my last message, an arch linux thumb drive also won't boot either.
Where do I find the linux efivar and the efibootmgr commands?
Thanks. Dave.
On 2/23/19, David Mehler <dave.mehler@gmail.com> wrote: > Hello, > > I had some unexpected sighted help last night and got secure boot off. > For this machine the m5a97 motherboard the setting was in the uefi, > advanced setup, boot tab, secure boot area. By default secure boot is > on and can not be disabled. So, cleared secure boot keys, saved, and > then secure boot was disabled. I then rebooted and rechecked uefi and > confirmed secure boot is indeed still disabled. Hope that is of use to > someone. > > My problem still is now putting in a thumb drive, either a win10 > created 1803 thumb drive, or a talking win PE in neither case will > they boot. Any ideas on that? > > Thanks. > Dave. > > > On 2/23/19, Jason White <jason@jasonjgw.net> wrote: >> The Linux efivar command will let you set the UEFI variables at a fairly >> low >> level. You can also use the efibootmgr command to change the boot order, >> and >> probably to add boot loaders too. >> >> I needed to turn off Secure Boot recently to enable an Arch Linux >> installation on a laptop. The easiest solution was to call an Aira agent >> for >> assistance. I read somewhere that the Secure Boot setting can't be >> changed >> once the operating system is loaded; you have to do it from the firmware >> menu during the boot process. I can't verify this claim though. At least >> on >> my laptop (a Lenovo P51), you can also change the EFI variables within >> Windows using scripts available from the manufacturer's web site. >> >> >> On 2/22/19, 13:39, "John G Heim" <jheim@math.wisc.edu> wrote: >> >> I am not sure I am totally up on the latest technology. But my guess >> is >> >> that you will probably have to get sighted assistance. About a year >> ago, >> >> I poked around looking for linux tools that allowed you to access >> EUFI >> settings. I found nothing of significance. >> >> There is some chance you could manage it with the KNFBReader iPhone >> app. >> >> The KNFBReader app can read a computer screen. It does not do well >> with >> >> console text. It does much better with black text on a white >> background. >> >> I actually succeeded in changing a BIOS setting once but I used a PC >> Weasel card. So that is a card that looks like a VGA card to the >> system >> >> but it actually gives you text output on a serial port. You can use a >> null-modem cable and a terminal emulator on a second machine to get >> to >> the console display. So what I did was to google for how to change >> the >> >> setting and found a video where the person walked you through >> changing >> the setting. I could kind of follow along with which keys he was >> hitting and did the same thing. It worked. But there was probably >> devine >> >> intervention. Every once in a while I look on Craig's List for one of >> those PC Weasel cards. They stopped making them years ago. It saved >> my >> >> bacon many a time though. >> >> It can be frustrating to get sighted assistance from someone who is >> not >> >> tech savvy to do something like change a EUFI setting. Another thing >> I've done in the past is to pack the machine up, drag it to a used >> computer store, and offer them $5 to helpme. Actually, the last time >> I >> did something like that, I didn't set a price ahead of time and they >> dinged me for $20. Lots of times they'll do stuff like that for free >> though. >> >> On 2/21/19 10:59 PM, David Mehler wrote:> Hello, >> > >> > I've had to do a new win10 install and somehow I must have cleared >> my >> > bios settings, had also to replace a power supply. The first clue >> came >> > after the machine was booted up again and wouldn't boot off of any >> USB >> > drive, so I checked system information, UEFI was back on as was >> secure >> > boot. I do not remember how I turned this off as I just did it >> once >> > and forgot about it. I do not like UEFI nor secure boot, although >> I >> > understand the purpose i'd rather be able to set my machine to >> boot >> > off an inserted USB thumb drive. >> > >> > The motherboard is an Asus m5a97 and the bios is an american >> megatrends. >> > >> > Suggestions welcome. >> > >> > Thanks. >> > Dave. >> > _______________________________________________ >> > Blind-sysadmins mailing list -- >> blind-sysadmins@lists.hodgsonfamily.org >> > To unsubscribe send an email to >> blind-sysadmins-leave@lists.hodgsonfamily.org >> > >> _______________________________________________ >> Blind-sysadmins mailing list -- >> blind-sysadmins@lists.hodgsonfamily.org >> To unsubscribe send an email to >> blind-sysadmins-leave@lists.hodgsonfamily.org >> >> >> >> >