Bug 1430145

Summary: Installation does not detect raid disks
Product: [Fedora] Fedora Reporter: Dr M C Nelson <drmcnelson>
Component: dmraidAssignee: LVM and device-mapper development team <lvm-team>
Status: CLOSED EOL QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: urgent Docs Contact:
Priority: unspecified    
Version: 25CC: agk, bmr, heinzm, lvm-team, prajnoha, prockai, p.sherman, zkabelac
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Hardware: x86_64   
OS: Linux   
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Last Closed: 2017-12-12 10:51:59 UTC Type: Bug
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Description Dr M C Nelson 2017-03-07 23:37:48 UTC
Description of problem:

Installing to a Vaio laptop.  This computer has two hard drives identified as raid 0.  In the "install to hard drive" program,  no hard drives appear.

In the live system, the file browser sees the disks under computer:///, and the disks utility sees the devices along with two raid devices /dev/md126 and /dev/md127.   How

Version-Release number of selected component (if applicable):

Fedora-Cinnamon-Live-25-1-3


How reproducible:

100%


Steps to Reproduce:
1.  Prepare a usb stick to run the live image
2.  Insert the usb stick and boot to it.
3.  Login to the live system and run the install to hard disk program,

Actual results:

The installation procedure fails to detect the hard drives or any raid representation of them.

Expected results:

The hard drives should appear and be available for re-partitioning, or even to break up the raid and use them as individual hard drives.


Additional info:

Comment 1 Dr M C Nelson 2017-03-08 19:43:50 UTC
It seems that this computer has Intel Rapid Storage Technology.

If so, then perhaps the bug is that Linux is not recognizing and using the RST corrrectly.

Comment 2 Heinz Mauelshagen 2017-03-08 19:57:53 UTC
What's the  raid config as of raid bios settings?

Comment 3 Heinz Mauelshagen 2017-03-08 20:01:20 UTC
FWIW: depending on the missing information, this may be the wrong component. could be mdadm rather.

Comment 4 Dr M C Nelson 2017-03-09 16:24:40 UTC
(In reply to Heinz Mauelshagen from comment #2)
> What's the  raid config as of raid bios settings?

The raid config does not appear in the bios settings.

Comment 5 Dr M C Nelson 2017-03-09 16:29:25 UTC
For comparison, with the Ubuntu live usb, the disks utility shows the partitions within the raid partition on the hard drive, but again, cannot do anything with them.   The install to disk program, similarly to the fedora program, does not show the hard drives.

Comment 6 Dr M C Nelson 2017-03-09 16:38:02 UTC
(In reply to Heinz Mauelshagen from comment #3)
> FWIW: depending on the missing information, this may be the wrong component.
> could be mdadm rather.

I am open to that, you guys know the architecture best.  If you want, you can send me a script or a list of commands to execute in the live system to generate more information.

Comment 7 Philip Sherman 2017-04-29 14:03:34 UTC
Similar problem on new Lenovo Legion Y520. Intel disk controller set to "RST Premium" mode. System has SSD and HDD. "Fast boot" option disabled. Win 10 shows two separate disk drives, no raid defined. Research indicates that Windows is using RST features to improve SSD longevity which suggests that new systems with SSD will all have this feature activated.

Reset disk controller to AHCI mode and both disk drives became visible to F26 booted from DVD. Win 10, installed on SSD, will not boot with controller in this mode. 

There are no RAID definition options in the system setup screens, just the option to use the disk controler in AHCI or RST mode.

Comment 8 Dr M C Nelson 2017-05-01 13:00:34 UTC
(In reply to Philip Sherman from comment #7)

That means this problem is going to be coming a lot more often and may even become ubiquitous.

Therefore the Linux install needs to accommodate this.  While not able to do that, an appropriate text needs to be added to the release notes.

Comment 9 Philip Sherman 2017-05-02 03:41:05 UTC
Workaround found. Windows can be altered to allow changing the disk controller to AHCI mode using the following procedure when no RAID is defined:
1. From running Win system, enter command using an administrator command prompt to force win to boot in "safe" mode.
2. Shutdown, enter hardware setup on restart and change disk controller to AHCI mode.
3. Let win boot into safe mode. Use the matching command to remove forced safe mode booting.
4. Reboot system verifying normal boot. 

Win "safe" mode will try loading all available disk controller code, flagging the working one as the one to use for future boots. Normal boot only uses the controller code that worked on the last boot. 

Once the disk controller is in AHCI mode, Fedora installed normally. 

Win commands:
bcdedit /set {default} safeboot minimal
bcdedit /deletevalue {default} safeboot

Comment 10 Fedora End Of Life 2017-11-16 19:16:14 UTC
This message is a reminder that Fedora 25 is nearing its end of life.
Approximately 4 (four) weeks from now Fedora will stop maintaining
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Comment 11 Fedora End Of Life 2017-12-12 10:51:59 UTC
Fedora 25 changed to end-of-life (EOL) status on 2017-12-12. Fedora 25 is
no longer maintained, which means that it will not receive any further
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