bugGNU GRUB - Bugs: bug #31783, GRUB2 issues with RTAI-patched...

 
 

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bug #31783: GRUB2 issues with RTAI-patched kernels

Submitter:  Paolo Rocca <g14n0>
Submitted:  Sat 04 Dec 2010 09:33:20 PM UTC
 
Category:  Booting Severity:  Major
Priority:  5 - Normal Item Group:  Software Error
Status:  Invalid Privacy:  Public
Assigned to:  None Originator Name:  g14n0
Open/Closed:  Closed Release:  1.98
Release:  Reproducibility:  Every Time
Planned Release:  None

Mon 04 Nov 2013 03:54:30 AM UTC, comment #3: 

As the problem is on kernel side (non-support of 32-bit protocol) and request for exact patch wasn't answered, marking as invalid.

Vladimir Serbinenko <phcoder>
Project Administrator
Sun 03 Apr 2011 11:41:07 AM UTC, comment #2: 

As for "deleted" entries, it's nothing against you: savannah was restored from backup. Browsing through RTAI website I couldn't find a diff for Linux. Could you paste URL to one?
linux16+initrd16 don't use 32-bit protocol.

Vladimir Serbinenko <phcoder>
Project Administrator
Sat 04 Dec 2010 09:36:01 PM UTC, comment #1: 

Follow-up Comment #2, bug #31753 (project grub):

Your idea was correct, Vladimir. But the linux16 command isn't enough.
I resolved putting in grub.cfg linux16 and initrd16 both commands. Now, with
grub2 all the RTAI-patched kernels seem to boot without errors.
Are there other methods, according to your experience, to recover the 32-bit
booting protocol? Can we study a patch for grub2 (or RTAI, or both) to avoid
this issue?

Actually, to boot a kernel (vanilla or ubuntu) with RTAI, there are two
ways:

1) purge grub2 and revert to grub1

2) keep grub2 and modify grub.cfg according to above

Maybe sharing this with rtai community, we can fix all issues.

-------------------------------------------------------------
I don't know why my profile was deleted from savannah, and related subscription to grub group. And the bug #31753 was deleted too, and reassigned to another context. Why? Boh...

Paolo Rocca <g14n0>
Sat 04 Dec 2010 09:33:20 PM UTC, original submission:  

Hi.

According to my posts on rtai mailing list, grub2 doesn't work with "Low
Latency Desktop" option in kernel recompiling, after rtai-patch applied.
The realtime kernels freeze after grub2 selection: black screen and blinking
cursor.

Without rtai patch, kernel recompiling works with Low Latency option.

I've made several tests. If you want, I can send you procedures about.

Thanks

Paolo Rocca

Paolo Rocca <g14n0>

 

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    Date Changed by Updated Field Previous Value => Replaced by
    2013-11-04 phcoder StatusNone Invalid
        Open/ClosedOpen Closed

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