Understanding "noiswmd" ARG on the kernel boot line
Posted: May 14th, '16, 12:07Hello, Any...
I am a little confused (unsurprisingly) about a kernel Arg included on my Mageia-5 kernel line at boot. It is " noiswmd ".
When I search (using variations of "noiswmd" in clauses) on the Internet for simple details to understand need/requirement, the results are very sketchy. Mageia seems to use it, and Fedora might too. The connection there seems to be because both distros are RPM-based systems.
The following links MIGHT be relevant (only because they include references to "noiswmd", but are not intended for other purposes.).
https://bugs.mageia.org/show_bug.cgi?id=14330
https://linux.web.cern.ch/linux/scienti ... cal_Notes/
.
From all info I've found, it appears that " mdadm " and " dmadm " modules might also be involved.
Additionally, my understanding about those modules is that they are definitely used in setting RAID disks, but MIGHT also be needed for MULTI-disk usage/management too (ie multidisk, but NOT raided). [On that last point I am really unsure.]
Before answering it might be imperative to know three points about my system...
(A.) I do NOT have RAID (nor want it).
(B.) I DO have two HD's (containing multiple O/S's).
(C.) I DO have an old RAID-capable motherboard, but has RAID capabilities in the BIOS turned OFF.
A Note...
Many distros that I have attempted to install (or actually installed) seem to detect that I might need RAID configured, and ask if I want raid set up (or packages installed). [I'm guessing that might be because of detection of two HDs.]
Q's.
(Simple explanatory answers would be good; slightly-technical, explanatory answers are OK too.)
1.
What is " noiswmd ", and what exactly is it for?
2.
If I don't use RAID why is " noiswmd " used/needed on the kernel ARG line in my Mageia-5?
3.
I have multiple HDs, so are either "mdadm" or "dmadm" modules still needed on my system (ie even if I DO NOT use RAID)?
4.
Any other useful tips or points or guidance about this is fine.
Regards,
aka boombaby
I am a little confused (unsurprisingly) about a kernel Arg included on my Mageia-5 kernel line at boot. It is " noiswmd ".
When I search (using variations of "noiswmd" in clauses) on the Internet for simple details to understand need/requirement, the results are very sketchy. Mageia seems to use it, and Fedora might too. The connection there seems to be because both distros are RPM-based systems.
The following links MIGHT be relevant (only because they include references to "noiswmd", but are not intended for other purposes.).
https://bugs.mageia.org/show_bug.cgi?id=14330
https://linux.web.cern.ch/linux/scienti ... cal_Notes/
.
From all info I've found, it appears that " mdadm " and " dmadm " modules might also be involved.
Additionally, my understanding about those modules is that they are definitely used in setting RAID disks, but MIGHT also be needed for MULTI-disk usage/management too (ie multidisk, but NOT raided). [On that last point I am really unsure.]
Before answering it might be imperative to know three points about my system...
(A.) I do NOT have RAID (nor want it).
(B.) I DO have two HD's (containing multiple O/S's).
(C.) I DO have an old RAID-capable motherboard, but has RAID capabilities in the BIOS turned OFF.
A Note...
Many distros that I have attempted to install (or actually installed) seem to detect that I might need RAID configured, and ask if I want raid set up (or packages installed). [I'm guessing that might be because of detection of two HDs.]
Q's.
(Simple explanatory answers would be good; slightly-technical, explanatory answers are OK too.)
1.
What is " noiswmd ", and what exactly is it for?
2.
If I don't use RAID why is " noiswmd " used/needed on the kernel ARG line in my Mageia-5?
3.
I have multiple HDs, so are either "mdadm" or "dmadm" modules still needed on my system (ie even if I DO NOT use RAID)?
4.
Any other useful tips or points or guidance about this is fine.
Regards,
aka boombaby