UBCD 5.1 kernel panic running Prime Test

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Explorer09
Posts: 178
Joined: Fri Jun 17, 2011 11:23 pm

Re: UBCD 5.1 kernel panic running Prime Test

Post by Explorer09 » Fri Feb 08, 2013 8:23 pm

ady wrote: 2_ The second difference is more relevant to this particular case. In Syslinux 4.06 (and older), linux.c32 is capable of booting newer (bigger) Linux kernels (like the one used in PMagic). The "traditional" directives ("KERNEL" or "LINUX") might fail in these cases. Note that the linux.c32 module included in Syslinux 4.06 (used by UBCD 5.2 pre-releases), although capable of booting newer Linux kernels, is still under development, so there are cases where it might fail. Having said that, I strongly suggest using it for pmagic's kernels, since the original PMagic distro already uses it (and has been using it for a long time).
I did some searching and found this:
http://forums.partedmagic.com/viewtopic ... 6530#p6530
It was Icecube that suggests using linux.c32 in PMagic in the first place.
The thread also mentions about Ubuntu, which doesn't use the linux.c32 in its isolinux boot entry. (Note 1)

I will change the syntax to something like below in the help files, but just for this case only. Because I'm still confused about what linux.c32 can do and whether it is still useful in the new Syslinux 5.01.

Code: Select all

COM32 linux.c32
APPEND /pmagic/bzImage initrd=/ubcd/boot/cpustress/initrd.gz root=/dev/ram0 
           ramdisk_size=12000 noapic <other-parameters...>
ady wrote: (Information about DISPLAY files)
I don't think I'll write a DISPLAY file for this (and I don't know what to write). I'll let someone else to do that.


(Note 1) <Ubuntu-CD>/isolinux/txt.cfg:

Code: Select all

label live
  menu label ^Try Ubuntu without installing
  kernel /casper/vmlinuz
  append  file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash --

ady
Posts: 826
Joined: Sat May 08, 2010 5:26 am

Re: UBCD 5.1 kernel panic running Prime Test

Post by ady » Sat Feb 09, 2013 2:08 am

Explorer09 wrote:I will change the syntax to something like below in the help files, but just for this case only.
I don't understand what you mean with "but just for this case only". If this set of tools are using pmagic's kernel, then the boot line should use linux.c32.

To be clear, we are only talking here about the documentation, so to reduce potential confusion. I'm sure Victor already knows that pmagic's kernels use linux.c32 to boot.
Because I'm still confused about what linux.c32 can do and whether it is still useful in the new Syslinux 5.01.
UBCD 5.2 will use Syslinux 4.06 anyway, so just for the record, in Syslinux 5.01 the additional functionality of linux.c32 is still not merged into the Syslinux core.

Explorer09
Posts: 178
Joined: Fri Jun 17, 2011 11:23 pm

Re: UBCD 5.1 kernel panic running Prime Test

Post by Explorer09 » Sat Feb 09, 2013 8:28 am

ady wrote: I don't understand what you mean with "but just for this case only".
I mean there are not many distros that use linux.c32. I see only Parted Magic uses this.
(Perhaps I use a wrong phrase here. I'm not a native English speaker. :) )

Anyway,
CPUstress test v2.1expl5.1
http://dl.dropbox.com/u/70170658/ubcd/c ... .1expl5.7z
md5sum: aa044424f0b6883797dceafc58fa5b1b
sha1sum: 93a309f85c4a1f21dd0ebdad1236cad22b63c573

ady
Posts: 826
Joined: Sat May 08, 2010 5:26 am

Re: UBCD 5.1 kernel panic running Prime Test

Post by ady » Sat Feb 09, 2013 10:18 am

This is a little bit off-topic, but anyway.
Explorer09 wrote:I mean there are not many distros that use linux.c32. I see only Parted Magic uses this.
There are some "conditions" or "characteristics" for a distro to use linux.c32:

_ It should be using a "recent" ("big") kernel.
_ It should be using a "recent" Syslinux.

In purpose, I wrote the word "recent" between quotation marks. For example, PMagic have been using linux.c32 since June 2011 (more than a year and a half ago, by the time I am writing this post).

Note that a distro that doesn't use (a relatively recent) Syslinux won't use linux.c32. A distro that doesn't use a "recent big" kernel won't even need linux.c32.

Since we are talking about using this set of stress-like tools in UBCD, booting with Syslinux and using the same kernel that PMagic uses (with linux.c32 since June 2011), then it is adequate to use linux.c32 for these utilities.

I hope this clarifies the need for linux.c32, at least a little.

@Explorer09, Thank you.

Victor Chew
Posts: 1359
Joined: Mon Feb 21, 2005 10:59 pm
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Re: UBCD 5.1 kernel panic running Prime Test

Post by Victor Chew » Wed Feb 20, 2013 9:47 pm

CPUstress test v2.1expl5.1
http://dl.dropbox.com/u/70170658/ubcd/c ... .1expl5.7z
Seems like I missed this one for the official 5.2.0 release, so I am using v2.1expl4 updated by Don Manuel to include mprime 27.9 (sent to me via email).

How do I updated to CPUstress test v2.1expl5.1, but use Don's update for mprime 27.9?

Explorer09
Posts: 178
Joined: Fri Jun 17, 2011 11:23 pm

Re: UBCD 5.1 kernel panic running Prime Test

Post by Explorer09 » Fri Feb 22, 2013 5:22 pm

Victor Chew wrote: How do I updated to CPUstress test v2.1expl5.1, but use Don's update for mprime 27.9?
Why? My v2.1expl5.1 already includes mprime 27.9.

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