Hard Disk 3F0 error, but actual hard disk confirmed to be working

[tk_srq]

Have you found if the second SSD drive boots into Debian manually from F9 in legacy mode? If it boots manually but not automatically, all the experiments you did point to BIOS failing to detect grub on bootup. Possibly, an abrupt shutdown you experienced messed up BIOS.

I suggest you enter BIOS, go to Exit and load the default settings and save and exit. It'll reset legacy support to disabled. If the system doesn't boot, switch legacy back to enabled and try to boot again.

If you still have the problem, you may consider to clean install Debian on one of the SSD drives in UEFI mode (legacy off).

If this doesn't work. I don't have any other suggestions to give you.

BTW, you asked in your first post if it's possible to update BIOS on a Linux machine. It's possible. See the discussion below. Folks created a BIOS recovery usb drive that contains bios bin file and bios update utility and used the recovery method (press Windows and B keys then start) to update BIOS successfully. 

Solved: Re: Linux How install Bios on HP OMEN dc0850nd - HP Support Community - 8817529

[Zweitaktmotor · Accepted solution]

Hooray, problem solved!

First of all, many thanks to all the contributors, your help was much appreciated, although in the end I did not follow your more complicated advice and looked for a simpler solution first.

The following summary may help other users in the future:

- I have an HP Envy laptop, running on Linux Mint Dbian 5. All Windows installations were removed.

- While running on battery power, my laptop suddenly crashed out. When I tried to restart it, I got the 3F0 error.

- At first I thought the SSD was corrupt and replaced it with a spare, but I only encountered the same problem with this one as well.

- Following advice from this thread, I enabled BIOS legacy support and managed to boot manually via EFI, using the Esc key, then the F9 key, then finding the grub64.efi file on my disk.

- This was an ecouraging workaround, but unfortunately, the laptop would still not boot automatically.

- We discussed that this might be a corrupt BIOS issue and that some users have found a way to flash a new BIOS image, albeit with the help of a separate Windows computer to create a rescue USB. The procedure seemed quite long, but I had already downloaded the correct BIOS version for my laptop and was prepared to got through with this.

- First, however, I was looking for a perhaps easier and more fail-proof procedure and searched the repository of my OS (for non-Linux users: This is the equivalent of your mobile phone app store.)

I found the following packages as possible solutions:

1. Grub-rescue-pc

GRUB is the Linux bootleader that kicks in immediately after the BIOS. It identifies all OSs that are installed on a disk, lets you choose one and makes sure it starts. If this gets corrupted, you can still look at the content of the disk from another computer, but you cannot use the disk for booting.

Grub-rescue-pc has 3 images for either a CD-ROM, a floppy or a USB stick that lets you boot your pc externally and (presumably) repair Grub. I downloaded it but have not tried it yet as this was not my problem.

2. Flashrom

This is a commandline program that apparently can flash your pc with a new BIOS image (such as the one I downloaded from HP). It has, however many options to cater for many different hardware and software versions. Getting this wrong could have made my problem worse.

3. Boot Repair

This almost seems to easy to be true, but it did the trick for me!

It comes as a small graphical interface with 2 buttons. One says "Recommended Repair (repairs most frequent problems)" and the other one says "Create Bootinfo Summary (to get help via e-mail or forum)" There is also a scroll-down for advanced options.

The first button worked very well for me. While one might assume this repair only affects the particular disk installed in the PC, in my case it made both of them bootable again in one go, presumably by putting something right in the BIOS as well.

As for the second option, it is encouraging that there is community support available there as well. The Bootinfo it creates is quite comprehensive.

Hope someone will find this experience helpful. 🙂

[Ashwin24]

In ho elitebook laptop hard disk are not showing 

[Zweitaktmotor]

Are you running Linux?

It may be that your hard disk is not mounted or formatted. Try the "Disk" accessory and it will show you what is actually connected. You can mountt from there. Use GParted to format the disk if necessary, but make sure fiirst that it does not contain any data that you still need.