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Re: Inspiron 7490 BIOS: How to turn off intel 'RAID on', and swith disk mode to

To my knowledge, Dell systems will only accept BIOS code that has been digitally signed by Dell specifically to prevent hacked firmware that might have been modified maliciously. So even if someone had the skills to decompile BIOS code and modify it appropriately, getting systems to accept it would be difficult at best.

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Re: Inspiron 7490 BIOS: How to turn off intel 'RAID on', and swith disk mode to

So, it seems that the only reasonable way to 'make life much easier for hundreds of people' is to push Dell to release new BOIS with AHCI supporting inside.  But unfortunately, we still haven't gotten any valuable feedback from Dell. 

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Re: Inspiron 7490 BIOS: How to turn off intel 'RAID on', and swith disk mode to

Hello,

I just want to add my voice of discontent here so that Dell would do something to allow Linux install.

I experienced a freeze at Kubuntu (18.04 LTS)' splash screen and could not event try this linux flavor on this machine.

Unfortunately, I believe that it will take Dell longer to change the Bios than the return period allow...

I'm on searching for a replacement PC...

[Edit]

From Customer service yesterday the 24th :

j’ai le regret de vous informer que votre commercial refuse de retourner l’ordinateur/l’échanger car la commande est conforme au bon pour accord.

Meaning : the sales person refuses to exchange or return the order since it is compliant to the sales agreement.

I'll let all the forums I know know about it, that's for  sure.

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Re: Inspiron 7490 BIOS: How to turn off intel 'RAID on', and swith disk mode to

Hello,

I'm french and my english is very poor, excuse me.

I have the same problem on my laptop but it's a gift for my birstday, I cannot change it. This computer is very beautiful but I'm really frustrated that I cannot install Linux on it.

I hope that Dell will do the job to activate AHCI in the BIOS and give us a solution. It's Christmas 🙂

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Re: Inspiron 7490 BIOS: How to turn off intel 'RAID on', and swith disk mode to

 
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1 Copper

Re: Inspiron 7490 BIOS: How to turn off intel 'RAID on', and swith disk mode to

Hello, 

One more user concerned... I got this wonderful machine for Xmas (bought it during black Friday... waited a while for it!) and as soon as it was unpacked, tried to install my favorite Linux distro...

Tried and tried again but nothing works, including installing on an SDcard and then trying to access the nvme disk with mdadm! 

I use Dell's products for a while, but I am seriously considering returning this one and go for another brand/model.

Good luck with this machine and it's buggy bios

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Re: Inspiron 7490 BIOS: How to turn off intel 'RAID on', and swith disk mode to

Dear friends,

Unfortunately, I haven't found a workaround, but would like to leave my footprints.

For those who cannot boot with LiveUSB of ubuntu 19.10 & ubuntu 18.04 LTS, 
add nomodeset and modprobe.blacklist=intel_lpss_pci to grub loader options.
The only problem will be a touchpad driver after booting.

With my very limited knowledge, the reason why Linux cannot find your SSD is the BIOS remap its device address.

 

[    1.125977] ahci 0000:00:17.0: Found 1 remapped NVMe devices.
[    1.126969] ahci 0000:00:17.0: Switch your BIOS from RAID to AHCI mode to use them.

 

Some persons worked to develop the patch, which I haven't tried.
[v2,1/5] ahci: Discover Intel remapped NVMe devices - Patchwork 

If it is the case caused by Intel SSD driver, replacing original SSD to another SSD might work??

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2 Bronze

Re: Inspiron 7490 BIOS: How to turn off intel 'RAID on', and swith disk mode to

Same problem here, 2 months that I try to install a Linux OS, but without AHCI mode it's impossible...

Dell used to be known for not having to worry about these kinds of details. Not anymore.

And, at the price of the device I estimate that the support of at least one Linux OS is normal, or at least should be possible.

To give you an idea of the number of people affected :

https://askubuntu.com/questions/1181726/no-hard-drive-detected-during-ubuntu-19-04-installation

https://askubuntu.com/questions/1180881/i-dont-see-ssd-in-ubuntu-install-on-dell-latitude-7400-with-...

https://forum.ubuntu-fr.org/viewtopic.php?id=2046969

https://forum.ubuntu-fr.org/viewtopic.php?id=2044309

https://www.dell.com/community/Inspiron/SSD-NVME-non-reconnu-lors-de-l-installation-DELL-7490-Ubuntu...

https://forums.linuxmint.com/viewtopic.php?t=306195

https://www.reddit.com/r/linux4noobs/comments/e9zln4/linux_install_directly_to_nvme_ssd/

https://bbs.archlinux.org/viewtopic.php?id=251090

https://www.dell.com/community/Inspiron/Not-able-to-set-SATA-operation-to-AHCI-in-BIOS-Inspiron-7490

...

There's tons of subjects about this problem if you look hard enough, so at some point Dell might want to do something.

Sincerely

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2 Bronze

Re: Inspiron 7490 BIOS: How to turn off intel 'RAID on', and swith disk mode to

Year2020 arrived, when can we get the BIOS FW with AHCI supporting?

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Re: Inspiron 7490 BIOS: How to turn off intel 'RAID on', and swith disk mode to

Found this thread while trying to install Ubuntu on an Inspiron 5500 series I bought in December with raid enabled. Based on this thread and lots of others, it’s not possible without kernel changes and that got shut down 6+ months ago.  See the end of this thread, referenced earlier: https://lore.kernel.org/linux-pci/20190620061038.GA20564@lst.de/T/#rb97cf0289a450130870fdf177bf55e9c...

I am lucky and my BIOS allows AHCI mode so it seems it should be do-able for the 7500 series, if Dell chooses. 

 

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