** Description changed:
[Impact]
- A new discover-remapped-nvme.sh supports to detect if Intel RAID/RST
- mode is activated as NVMe devices are remapped to AHCI memory space.
- Based on this, ubiquity installer can take advantage of detection and
- handle such a case with improved user experience.
+ If the system has "Intel RST" mode enabled, we can't see its disks
+ because there is no support in the Linux kernel for them.
+
+ We can detect this situation and tell the user, directing them to
+ documentation which tells them how to work around it.
[Test Case]
- There are several ways to test this case, but one of them will be
- integration test:
-
- In ubiquity, hw-detect will be sourced, and then ubi-partman executes
- discover-remapped-nvme.sh to call remapped_nvme_probe(). Then use db.get
- ('disk-detect/activate_remapped_nvme') to get boolean value.
-
- To verify value can be issuing debconf command:
- $ echo "get disk-detect/activate_remapped_nvme" | sudo debconf-communicate
- 0 True
+ On a system (probably bare metal), turn on RST/Intel RAID mode and try
+ to install from Ubiquity (GTK frontend only). You should see a page
+ directing you to documentation (to be created).
[Regression Potential]
Some case will be different, especially the system doesn't have AHCI
when RAID mode was set in BIOS, so that PCI attribute "remapped_nvme" is
gone.
-
- [Other Info]
-
- To upstream to debian sid is another WIP item.
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https://bugs.launchpad.net/bugs/1864965
Title:
[FFe] Add Intel RAID/RST detection with NVMe devices
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