POV-Ray : Newsgroups : povray.off-topic : Opensuse 11 Live CD problem? Server Time
13 Oct 2026 12:47:53 EDT (-0400)
  Opensuse 11 Live CD problem? (Message 1 to 27 of 27)  
From: TC
Subject: Opensuse 11 Live CD problem?
Date: 29 Oct 2009 08:04:14
Message: <4ae984be@news.povray.org>
I was looking for a 64-bit Linux live cd (or dvd) - a dvd bootable linux 
that can access my windows ntfs volumes but does not make any changes to hdd 
(like, e.g, repartition the disk).

Something like knoppix but for 64-bit intel pc. I'd like to try some 64-bit 
Linux programs vs. 32 bit Windows XP.

Now, is the opensuse 11 live cd what I am looking for? Or does one have to 
boot from live-cd and then install linux?

Then, with opensuse there seems to be a problem with changes to BIOS. If it 
is just the bios date-time that is changed - no problem. But if the cd 
should manipulate the frequency/timings of cpu and memory - ouch! I cannot 
imagine it does, but safe is safe, so I'll ask here before I have to go 
hunting for the reset-bios jumper ;-)

Has anybody here experience with the live-cd?

http://www.marco.isrelated.com/?p=67

Since I am not much into linux I'd appreciate any help / suggestions.


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From: Aydan
Subject: Re: Opensuse 11 Live CD problem?
Date: 29 Oct 2009 08:55:00
Message: <web.4ae99005e32f3c971ccf29180@news.povray.org>
You could use the Ubuntu 64 live CD.
It will automatically mount all your partitions, in case of NTFS I think read
only.

If it's a live CD you won't need to install anything.


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From: Darren New
Subject: Re: Opensuse 11 Live CD problem?
Date: 29 Oct 2009 11:30:17
Message: <4ae9b509$1@news.povray.org>
TC wrote:
> Has anybody here experience with the live-cd?

I have used the livecd of both opensuse10, opensuse11x86 and opensuse11x64. 
Never had a problem, didn't change disks or bios (at least not 
irreversably). No problems going back to Windows after.

Ubuntu also comes with a version that will install into a file on your C: 
drive, so it's a full-blown installed Linux without repartitioning your 
drive in any way. Uninstall consists of deleting c:\ubuntu and taking the 
option out of boot.ini, or something equally trivial.

-- 
   Darren New, San Diego CA, USA (PST)
   I ordered stamps from Zazzle that read "Place Stamp Here".


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From: TC
Subject: Re: Opensuse 11 Live CD problem?
Date: 29 Oct 2009 13:43:16
Message: <4ae9d434$1@news.povray.org>
> Ubuntu also comes with a version that will install into a file on your C: 
> drive, so it's a full-blown installed Linux without repartitioning your 
> drive in any way. Uninstall consists of deleting c:\ubuntu and taking the 
> option out of boot.ini, or something equally trivial.

Thank you, Darren. I will try this. Sounds exactly like the thing I am 
looking for.


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From: Darren New
Subject: Re: Opensuse 11 Live CD problem?
Date: 29 Oct 2009 14:38:34
Message: <4ae9e12a$1@news.povray.org>
TC wrote:
> Thank you, Darren. I will try this. Sounds exactly like the thing I am 
> looking for. 

You and lots of others. Hence the option. :-)

It used to be called "Lindows" a couple years ago until MS sued them (or 
threatened to) for trademark violation. Now Ubuntu took over the idea and 
made it an official part of their distributions.

-- 
   Darren New, San Diego CA, USA (PST)
   I ordered stamps from Zazzle that read "Place Stamp Here".


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From: Jim Henderson
Subject: Re: Opensuse 11 Live CD problem?
Date: 30 Oct 2009 01:01:23
Message: <4aea7323@news.povray.org>
On Thu, 29 Oct 2009 13:04:11 +0100, TC wrote:

> I was looking for a 64-bit Linux live cd (or dvd) - a dvd bootable linux
> that can access my windows ntfs volumes but does not make any changes to
> hdd (like, e.g, repartition the disk).
> 
> Something like knoppix but for 64-bit intel pc. I'd like to try some
> 64-bit Linux programs vs. 32 bit Windows XP.
> 
> Now, is the opensuse 11 live cd what I am looking for? Or does one have
> to boot from live-cd and then install linux?
> 
> Then, with opensuse there seems to be a problem with changes to BIOS. If
> it is just the bios date-time that is changed - no problem. But if the
> cd should manipulate the frequency/timings of cpu and memory - ouch! I
> cannot imagine it does, but safe is safe, so I'll ask here before I have
> to go hunting for the reset-bios jumper ;-)
> 
> Has anybody here experience with the live-cd?
> 
> http://www.marco.isrelated.com/?p=67
> 
> Since I am not much into linux I'd appreciate any help / suggestions.

openSUSE 11.1 and 11.2 RC (which is in final testing now) should include 
ntfs-3g, so should be able to mount the NTFS partitions without a problem.

I'm not aware of the Live media doing anything to fiddle with BIOSes - 
would be too many permutations and versions of bioses to get it right 
enough of the time to make it worthwhile.

With the live media, everything runs of the media - no need to perform an 
installation.  The media is primarily to permit a user wanting to "test 
drive" Linux to see some of the features/functionality and to ensure 
system compatibility prior to installation.

Jim (openSUSE Forums Moderator & Novell employee)


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From: Warp
Subject: Re: Opensuse 11 Live CD problem?
Date: 30 Oct 2009 06:59:05
Message: <4aeac6f9@news.povray.org>
TC <do-not-reply@i-do get-enough-spam-already-2498.com> wrote:
> Then, with opensuse there seems to be a problem with changes to BIOS. If it 
> is just the bios date-time that is changed - no problem. But if the cd 
> should manipulate the frequency/timings of cpu and memory - ouch! I cannot 
> imagine it does, but safe is safe, so I'll ask here before I have to go 
> hunting for the reset-bios jumper ;-)

  I don't understand why linux would modify the frequency/timings of cpu and
memory, and even if it did, why it would have to modify BIOS to do that.
(What good would it do to modify BIOS anyways? It would have to re-boot in
order for the changes to become effective. BIOS is not something which is
constantly running in the background. It just sets up the hardware and starts
the OS and that's it.)

-- 
                                                          - Warp


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From: TC
Subject: Re: Opensuse 11 Live CD problem?
Date: 30 Oct 2009 09:41:18
Message: <4aeaecfe$1@news.povray.org>
>  I don't understand why linux would modify the frequency/timings of cpu 
> and
> memory, and even if it did, why it would have to modify BIOS to do that.
> (What good would it do to modify BIOS anyways? It would have to re-boot in
> order for the changes to become effective. BIOS is not something which is
> constantly running in the background. It just sets up the hardware and 
> starts
> the OS and that's it.)

I thought this to be so, too. I was astonished to see that people seem to 
have had some problems with this.

And I was not sure if this is true or not, so I asked.

BTW:

I did try the Ubuntu Live CD and it did reset my computer's clock to either 
daylight saving time or universal time - both -1:00, so I cannot be sure 
which.

This is no real problem, though, merely a very minor annoyance. Still, this 
should not be.


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From: Invisible
Subject: Re: Opensuse 11 Live CD problem?
Date: 30 Oct 2009 09:43:49
Message: <4aeaed95$1@news.povray.org>
TC wrote:

> I did try the Ubuntu Live CD and it did reset my computer's clock to either 
> daylight saving time or universal time - both -1:00, so I cannot be sure 
> which.
> 
> This is no real problem, though, merely a very minor annoyance. Still, this 
> should not be.

The Linux Way(tm) seems to be to set the system clock to UTC and compute 
local time from that depending on your timezone configuration. (Which, 
on a live CD, is probably not set right anyway.) The Windows Way(tm) is 
to set the system clock to local time...


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From: clipka
Subject: Re: Opensuse 11 Live CD problem?
Date: 30 Oct 2009 10:15:27
Message: <4aeaf4ff$1@news.povray.org>
Warp schrieb:

>   I don't understand why linux would modify the frequency/timings of cpu and
> memory, and even if it did, why it would have to modify BIOS to do that.
> (What good would it do to modify BIOS anyways? It would have to re-boot in
> order for the changes to become effective. BIOS is not something which is
> constantly running in the background. It just sets up the hardware and starts
> the OS and that's it.)

Well, /nowadays/ that's how it is. Used to be different in DOS times.

Then again, that's quite a long time ago...


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From: Warp
Subject: Re: Opensuse 11 Live CD problem?
Date: 30 Oct 2009 10:21:48
Message: <4aeaf67b@news.povray.org>
clipka <ano### [at] anonymousorg> wrote:
> Warp schrieb:

> >   I don't understand why linux would modify the frequency/timings of cpu and
> > memory, and even if it did, why it would have to modify BIOS to do that.
> > (What good would it do to modify BIOS anyways? It would have to re-boot in
> > order for the changes to become effective. BIOS is not something which is
> > constantly running in the background. It just sets up the hardware and starts
> > the OS and that's it.)

> Well, /nowadays/ that's how it is. Used to be different in DOS times.

  DOS could change the CPU/memory frequency by modifying BIOS and without
having to reboot?

-- 
                                                          - Warp


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From: clipka
Subject: Re: Opensuse 11 Live CD problem?
Date: 30 Oct 2009 11:18:52
Message: <4aeb03dc$1@news.povray.org>
Warp schrieb:

>>>   I don't understand why linux would modify the frequency/timings of cpu and
>>> memory, and even if it did, why it would have to modify BIOS to do that.
>>> (What good would it do to modify BIOS anyways? It would have to re-boot in
>>> order for the changes to become effective. BIOS is not something which is
>>> constantly running in the background. It just sets up the hardware and starts
>>> the OS and that's it.)
> 
>> Well, /nowadays/ that's how it is. Used to be different in DOS times.
> 
>   DOS could change the CPU/memory frequency by modifying BIOS and without
> having to reboot?

No, but BIOS did more back then than just start the OS. For instance, 
hard disk access or keyboard input would be handled by the BIOS.

Back then, the role of the BIOS was still closer to its name ("Basic 
Input/Output System) than it is nowadays: It really did basic input and 
output handling even while the OS was running, and was far from evolving 
into a hardware configuration interface. (Remember how CPU and memory 
frequency would be configured via hardware jumpers or DIP switches, port 
I/O addresses would be jumpered on the /expansion card/ the ports were 
on, etc?)


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From: Darren New
Subject: Re: Opensuse 11 Live CD problem?
Date: 30 Oct 2009 13:16:20
Message: <4aeb1f64$1@news.povray.org>
Jim Henderson wrote:
> openSUSE 11.1 and 11.2 RC (which is in final testing now) should include 
> ntfs-3g, so should be able to mount the NTFS partitions without a problem.

I have no problem using ntfs-3g and mounting NTFS drives RW from my OpenSuse 
11 that I downloaded many months ago. I don't know it's on the live CD, but 
it's definitely in the distro somewhere.

> With the live media, everything runs of the media - no need to perform an 
> installation.  The media is primarily to permit a user wanting to "test 
> drive" Linux to see some of the features/functionality and to ensure 
> system compatibility prior to installation.

Yeah, I learned that one the hard way. :-)

-- 
   Darren New, San Diego CA, USA (PST)
   I ordered stamps from Zazzle that read "Place Stamp Here".


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From: Darren New
Subject: Re: Opensuse 11 Live CD problem?
Date: 30 Oct 2009 13:17:49
Message: <4aeb1fbd@news.povray.org>
Warp wrote:
>   I don't understand why linux would modify the frequency/timings of cpu and
> memory, and even if it did, why it would have to modify BIOS to do that.

Actually, during boot-up, something along the lines of "installing new 
microcode" or "installing new firmware" or something like that scrolls by. 
That always worried me, but I figured it either got reversed at the next 
reboot or it was too late to do anything about it, and it never caused any 
trouble.

I am curious what that's all about, tho.

-- 
   Darren New, San Diego CA, USA (PST)
   I ordered stamps from Zazzle that read "Place Stamp Here".


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From: Darren New
Subject: Re: Opensuse 11 Live CD problem?
Date: 30 Oct 2009 13:19:16
Message: <4aeb2014$1@news.povray.org>
clipka wrote:
> Back then, the role of the BIOS was still closer to its name ("Basic 
> Input/Output System) than it is nowadays: It really did basic input and 
> output handling even while the OS was running, 

That pretty much went away when OSes started running in real mode. By the 
time you got away from 16-bit code, nobody used the BIOS for basic I/O any more.

But you knew that.

-- 
   Darren New, San Diego CA, USA (PST)
   I ordered stamps from Zazzle that read "Place Stamp Here".


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From: Fredrik Eriksson
Subject: Re: Opensuse 11 Live CD problem?
Date: 30 Oct 2009 13:49:19
Message: <op.u2mjspgr7bxctx@bigfrog.bredbandsbolaget.se>
On Fri, 30 Oct 2009 18:17:49 +0100, Darren New <dne### [at] sanrrcom> wrote:
>
> Actually, during boot-up, something along the lines of "installing new  
> microcode" or "installing new firmware" or something like that scrolls  
> by. That always worried me, but I figured it either got reversed at the  
> next reboot or it was too late to do anything about it, and it never  
> caused any trouble.
>
> I am curious what that's all about, tho.

http://kerneltrap.org/node/2678

Typically, microcode updates are loaded by the BIOS, but not everyone  
updates their BIOS when new microcode is released for their CPU.



-- 
FE


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From: Darren New
Subject: Re: Opensuse 11 Live CD problem?
Date: 30 Oct 2009 13:53:25
Message: <4aeb2815@news.povray.org>
Fredrik Eriksson wrote:
> Typically, microcode updates are loaded by the BIOS, but not everyone 
> updates their BIOS when new microcode is released for their CPU.

Thank you!

-- 
   Darren New, San Diego CA, USA (PST)
   I ordered stamps from Zazzle that read "Place Stamp Here".


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From: clipka
Subject: Re: Opensuse 11 Live CD problem?
Date: 30 Oct 2009 14:25:00
Message: <4aeb2f7c$1@news.povray.org>
Darren New schrieb:

> That pretty much went away when OSes started running in real mode. By 
> the time you got away from 16-bit code, nobody used the BIOS for basic 
> I/O any more.
> 
> But you knew that.

Indeed ;-)


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From: Jim Henderson
Subject: Re: Opensuse 11 Live CD problem?
Date: 30 Oct 2009 15:54:41
Message: <4aeb4481@news.povray.org>
On Fri, 30 Oct 2009 10:16:20 -0700, Darren New wrote:

> Jim Henderson wrote:
>> openSUSE 11.1 and 11.2 RC (which is in final testing now) should
>> include ntfs-3g, so should be able to mount the NTFS partitions without
>> a problem.
> 
> I have no problem using ntfs-3g and mounting NTFS drives RW from my
> OpenSuse 11 that I downloaded many months ago. I don't know it's on the
> live CD, but it's definitely in the distro somewhere.

Yeah, on my 11.1 box, I've a small Vista partition (came with the system 
and I left it "just in case" I needed it for something, but shrunk it 
down really small) and I noticed that the system mounts them at boot time 
automatically.  I'm kinda assuming with the live media it's there - would 
make sense to me if it was, since one might want to use the software on 
the disc to open doc files to check compatibility.

>> With the live media, everything runs of the media - no need to perform
>> an installation.  The media is primarily to permit a user wanting to
>> "test drive" Linux to see some of the features/functionality and to
>> ensure system compatibility prior to installation.
> 
> Yeah, I learned that one the hard way. :-)

:-)

Jim


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From: Jim Henderson
Subject: Re: Opensuse 11 Live CD problem?
Date: 30 Oct 2009 15:56:05
Message: <4aeb44d5$1@news.povray.org>
On Fri, 30 Oct 2009 13:43:48 +0000, Invisible wrote:

> TC wrote:
> 
>> I did try the Ubuntu Live CD and it did reset my computer's clock to
>> either daylight saving time or universal time - both -1:00, so I cannot
>> be sure which.
>> 
>> This is no real problem, though, merely a very minor annoyance. Still,
>> this should not be.
> 
> The Linux Way(tm) seems to be to set the system clock to UTC and compute
> local time from that depending on your timezone configuration. (Which,
> on a live CD, is probably not set right anyway.) The Windows Way(tm) is
> to set the system clock to local time...

This is true - the *nix way (in general) is that the HW clock is set to 
GMT and the OS calculates the offset.  That may be what TC is seeing.

Jim


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From: Florian Pesth
Subject: Re: Opensuse 11 Live CD problem?
Date: 30 Oct 2009 17:13:44
Message: <4aeb5708$1@news.povray.org>
Am Fri, 30 Oct 2009 06:59:05 -0400 schrieb Warp:

>   I don't understand why linux would modify the frequency/timings of cpu
>   and
> memory, and even if it did, why it would have to modify BIOS to do that.

I don't know why it would change the BIOS either, but AFAIK for some 
CPU's one could reduce the power consumption by using a lower CPU 
frequency (power savings on mobile computers).


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From: Darren New
Subject: Re: Opensuse 11 Live CD problem?
Date: 30 Oct 2009 18:42:20
Message: <4aeb6bcc@news.povray.org>
Jim Henderson wrote:
> This is true - the *nix way (in general) is that the HW clock is set to 
> GMT and the OS calculates the offset.  That may be what TC is seeing.

Speaking of which... how do you change the timezone on Linux these days? The 
TZ variable isn't set. I think it's a Debian install. (It's a VM at work, so 
I barely know anything about it, but if screws up the timestamps because the 
head office is in a different timezone.)

-- 
   Darren New, San Diego CA, USA (PST)
   I ordered stamps from Zazzle that read "Place Stamp Here".


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From: Fredrik Eriksson
Subject: Re: Opensuse 11 Live CD problem?
Date: 30 Oct 2009 19:06:03
Message: <op.u2mygmal7bxctx@bigfrog.bredbandsbolaget.se>
On Fri, 30 Oct 2009 23:42:19 +0100, Darren New <dne### [at] sanrrcom> wrote:
>
> Speaking of which... how do you change the timezone on Linux these days?  
> The TZ variable isn't set. I think it's a Debian install.

http://lmgtfy.com/?q=debian+change+timezone



-- 
FE


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From: Jim Henderson
Subject: Re: Opensuse 11 Live CD problem?
Date: 30 Oct 2009 23:31:29
Message: <4aebaf91@news.povray.org>
On Fri, 30 Oct 2009 15:42:19 -0700, Darren New wrote:

> Jim Henderson wrote:
>> This is true - the *nix way (in general) is that the HW clock is set to
>> GMT and the OS calculates the offset.  That may be what TC is seeing.
> 
> Speaking of which... how do you change the timezone on Linux these days?
> The TZ variable isn't set. I think it's a Debian install. (It's a VM at
> work, so I barely know anything about it, but if screws up the
> timestamps because the head office is in a different timezone.)

I would change it on my SUSE systems using YaST, most likely, in the time/
date configuration.

Jim


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From: Darren New
Subject: Re: Opensuse 11 Live CD problem?
Date: 1 Nov 2009 13:06:53
Message: <4aedce3d@news.povray.org>
Jim Henderson wrote:
> I would change it on my SUSE systems using YaST, most likely, in the time/
> date configuration.

That's why I asked. The VM I'm using is all command-line driven, let alone 
something as nice as YaST.

Fortunately, Fredrik googled it for me. ;-)

-- 
   Darren New, San Diego CA, USA (PST)
   I ordered stamps from Zazzle that read "Place Stamp Here".


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From: Jim Henderson
Subject: Re: Opensuse 11 Live CD problem?
Date: 1 Nov 2009 14:54:19
Message: <4aede76b$1@news.povray.org>
On Sun, 01 Nov 2009 10:06:51 -0800, Darren New wrote:

> Jim Henderson wrote:
>> I would change it on my SUSE systems using YaST, most likely, in the
>> time/ date configuration.
> 
> That's why I asked. The VM I'm using is all command-line driven, let
> alone something as nice as YaST.
> 
> Fortunately, Fredrik googled it for me. ;-)

I was tempted to, but since he already did.... ;-)

Jim


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From: Nicolas Alvarez
Subject: Re: Opensuse 11 Live CD problem?
Date: 18 Nov 2009 15:03:40
Message: <4b04531c@news.povray.org>
Darren New wrote:
> Warp wrote:
>>   I don't understand why linux would modify the frequency/timings of cpu
>>   and
>> memory, and even if it did, why it would have to modify BIOS to do that.
> 
> Actually, during boot-up, something along the lines of "installing new
> microcode" or "installing new firmware" or something like that scrolls by.
> That always worried me, but I figured it either got reversed at the next
> reboot or it was too late to do anything about it, and it never caused any
> trouble.

CPUs have volatile memory to store microcode updates. If an OS, during 
bootup, loads microcode into your CPU and screws things up, reboot and it's 
gone.

Many pieces of hardware have a similar thing for firmware, except that it's 
not for "updating". If the device driver doesn't load the firmware into the 
device, then it won't work at all, or it will lack features.

In any case, it's volatile memory (that's why it's being done on boot).


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