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J. Greenlees | 3 Mar 2008 23:56

power management and laptops

Just some info.
Last week I saw a Gateway laptop [ model not known yet ] running
Mandriva 2008 that would suspend / hibernate when the unit was closed.
This was an "out of box" configuration on power management.
[ meaning no customisation, Mandriva's default conf used. ]

This is the first time I have seen power management work right on a
laptop, with any distro.
[ I'll try to get the conf used for those building LFS on a laptop. ]

Jaqui

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Ken Moffat | 4 Mar 2008 00:32

Re: power management and laptops

On Mon, Mar 03, 2008 at 02:56:55PM -0800, J. Greenlees wrote:
> Just some info.
> Last week I saw a Gateway laptop [ model not known yet ] running
> Mandriva 2008 that would suspend / hibernate when the unit was closed.
> This was an "out of box" configuration on power management.
> [ meaning no customisation, Mandriva's default conf used. ]
> 
> This is the first time I have seen power management work right on a
> laptop, with any distro.
> [ I'll try to get the conf used for those building LFS on a laptop. ]
> 
> Jaqui
> 
 Useful.  I managed to get one of the last of the ibook G4's to
replace my G3 - they both slept fine (the G3 died, the G4 is still
in use, but getting a bit slow for compiling) - that's the versions
with the radeon video, of course (the nvidia pmacs don't sleep), and
using pbbuttonsd.  Nice to see the little-endian laptops catching up
at last ;)

ĸen
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J. Greenlees | 4 Mar 2008 01:54

Re: power management and laptops

Ken Moffat wrote:
> On Mon, Mar 03, 2008 at 02:56:55PM -0800, J. Greenlees wrote:
>> Just some info.
>> Last week I saw a Gateway laptop [ model not known yet ] running
>> Mandriva 2008 that would suspend / hibernate when the unit was closed.
>> This was an "out of box" configuration on power management.
>> [ meaning no customisation, Mandriva's default conf used. ]
>>
>> This is the first time I have seen power management work right on a
>> laptop, with any distro.
>> [ I'll try to get the conf used for those building LFS on a laptop. ]
>>
>> Jaqui
>>
>  Useful.  I managed to get one of the last of the ibook G4's to
> replace my G3 - they both slept fine (the G3 died, the G4 is still
> in use, but getting a bit slow for compiling) - that's the versions
> with the radeon video, of course (the nvidia pmacs don't sleep), and
> using pbbuttonsd.  Nice to see the little-endian laptops catching up
> at last ;)
> 
> ĸen

Turning the conf into a hint would be useful. looks like it might be
something Gateway may be doing in their bios settings, another Gateway
laptop running Ubuntu will also suspend / hibernate properly.

One is an M series, the other I know is an Itanium powered laptop.
The M series is owned by a technophobic senior citizen [ can't even add
time to a pay as you go cell phone ] who had enough with windows not
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Adrian Fisher | 29 Mar 2008 16:54

(2008032902 - LFS) Compression

Hello again all :)

What is the best open source (or at least non commercial) compression 
format known?  How does it fair with source code?

Regards,

A.
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Adrian Fisher | 29 Mar 2008 16:43

(2008032901 - LFS) Introduction

Hello all  :)

I just joined these lists so thought I would introduce myself.  I am 
Adrian from England and am learning Linux.  I am an IT contractor and 
currently do technical support (M$).  I have two computers, one to use 
for everyday things and another one to use for my LFS system.

I am sure I will have many questions and hope to be able to offer help 
at times so don't wan to make this a one-way thing :)

Bye for now and happy hacking :)

A.
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TheOldFellow | 29 Mar 2008 17:15
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Re: (2008032902 - LFS) Compression

On Sat, 29 Mar 2008 15:54:07 +0000
Adrian Fisher <adrian <at> leofcwen.com> wrote:

> Hello again all :)
> 
> What is the best open source (or at least non commercial) compression 
> format known?  How does it fair with source code?
> 
> Regards,
> 
> A.

Difficult to say 'the best', but the most popular is probably gzip(.gz),
bzip2 (.bz2) is also well used and gives a higher comression ratio.
The trade off is in compression/decommpression time, and memory usage.
Almost all source distributions use tar files compressed with either gz
or bz2.

There are Zip and RAR versions for Linux too.

For speed, there's the lzo library (and it's UI: lzop), but it isn't
much used. If you are building an application that needs fast
compression then the lzo library is faster an alternative to zlib.

R.

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Lars Nielsen | 29 Mar 2008 17:04
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Re: (2008032902 - LFS) Compression

Adrian Fisher skrev:
> Hello again all :)
>
> What is the best open source (or at least non commercial) compression 
> format known?  How does it fair with source code?
>
> Regards,
>
> A.
>   
Hey A.

The two best know compression formats in the linux environment are gzip 
and bzip2. Both of them have open source utilities.
At wikipedia you can find a comparison of much more formats inclusive 
compressionratios. http://en.wikipedia.org/wiki/Comparison_of_file_archivers

/Lars
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Robert Connolly | 29 Mar 2008 22:07
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Re: (2008032902 - LFS) Compression

On Saturday March 29 2008 11:54:07 am Adrian Fisher wrote:
> Hello again all :)
>
> What is the best open source (or at least non commercial) compression
> format known?  How does it fair with source code?
>
> Regards,
>
> A.

7zip/lzma compresses better than anything else, but also costs the most cpu. 
If saving space is your primary concern, then this is the best choice. The 
decompression time for lzma is very competitive. Here are some examples:

261M    linux-2.6.24.3.tar

45M     linux-2.6.24.3.tar.bz2
	1m32.503s compression time at -9
	0m29.657s decompression time

57M     linux-2.6.24.3.tar.gz
	0m49.603s compression time at -9
	0m7.515s decompression time

37M     linux-2.6.24.3.tar.lzma
	11m1.600s compression time at -9
	0m10.397s decompression time

Note that your results may be different, depending on assembly code used when 
building lzma, and the type of file you're compressing. Lzma is ideal for the
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Adrian Fisher | 30 Mar 2008 11:13

(LFS - 2008033001) Version 7

Hello all,

Does anyone here know when the v7 LFS book and package list will be 
available?

Thanks in advance,

A.
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Lars Nielsen | 30 Mar 2008 12:38
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tcl download link

Hi all

In the current development book under "3.2. All Packages" the link to 
Tcl starts with "http://prdownloads.sourceforge......". This link 
returns a http 301 status code which means that the link has moved 
permanently.
The new link is "http://downloads.sourceforge......"

Shouldn't this be updated in the book?

Regards
Lars
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Gmane