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Sunday Feb 07, 2010

bad pbr sig - and a simple solution

After the addition of a hard disc to a mirrored zfs rpool, the boot process immediately stopped with the GRUB message: "bad pbr sig". It means that something is wrong with the Primary Boot Record (aka Master Boot Record). The solution was simple - I swapped the boot order of the hard discs in BIOS. Now it works perfectly again.

Posted at 10:55AM Feb 07, 2010 by Adam Bien in solaris  |  Kommentare[0]


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Number of posts: 752
Number of comments: 2586
On Java FX at java.sun.com
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Real World Java EE Patterns Rethinking Best Practices

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...the last 150 posts
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Spring vs. Vanilla Java EE, Real World Java EE Workshop and The Perfect Storm
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bad pbr sig - and a simple solution
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Object Pooling Can Be Still Useful - For Entirely Different Reasons
Free JUG Session In Hamburg - Real World Java EE Patterns - Rethinking Best Practices
Sun + Oracle, NetBeans, Glassfish, JavaOne and the Death of Kenai
JDeveloper vs. NetBeans - The Poll Results
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A Good 12 Minutes, NetBeans 6.8 Editor Screencast
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NetBeans 6.8 Java FX Editor For Production? - First Smoke Test
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...the last 10 comments

Adam Bien wrote:

@ALR,

absolutely no-no. Never used threads so far in the EJBs. But why not allow them in @Singleton BMC.Bean?

thanks for your c[...]

Andrew Lee Rubinger wrote:

Interesting discussion.

But to me when you use a container, you surrender the right to runtime services like threading. The idea of EJB [...]

Adam Bien wrote:

@Michael,

you can absolutely do that - in Servlets, CDI and in JCA. The EJB 3.1 spec does not allow it formally - but it works in most ca[...]

michael bien wrote:

There are several usecases for this as soon you have to solve problems with finer granularity as sessions (or even tasks in general) e.g. computat[...]

Adam Bien wrote:

@Rolf,

thought about your comment again :-). My reasoning is:
The worst possible thing, which may occur is not inefficiency, but in[...]

Adam Bien wrote:

Rolf,

you are actually right. Bean Managed Concurrency was intended just for synchronization (synchronized, volatile etc.) purposes.

[...]

Rolf Schäuble wrote:

I'm not sure that your reasoning is correct. The section of the EJB 3.1 spec that you've quoted only speaks about using synchronization primitives[...]

Adam Bien wrote:

@Moo,

indeed - but I have no idea, whether it will be recorded, or not.

Just come, participate (its Saturday) and have fun. It i[...]

Moo wrote:

a webcast of this workshop would be cool :)



Adam Bien wrote:

@Haug,

You comment is exactly my opinion - thanks!,

adam


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