Re: netinst.iso - a learning experience- Part 1 grub

2012-05-06 Thread Ralf Mardorf
On Sun, 2012-05-06 at 08:30 +0200, an unknown sender wrote:
 b. Can I do anything at this point to allow choice to boot 
 Windows?

The menu is in /boot/grub/grub.cfg (GRUB 2) or /boot/grub/menu.lst (GRUB
Legacy).
You don't need to know what Windows you have installed, since it's done
by chainloading. This is from my menu.lst:

#title Windows
#rootnoverify (hd0,0)
#makeactive
#chainloader +1

Of cause, you need to uncomment it, IOW remove the #s.

If you use GRUB 2, more likely for a default Debian install ;), than
perhaps running update-grub with root privileges might add Windows
automatically to grub.cfg. If not, I would recommend to switch to GRUB
Legacy, since for a beginner it's easier to handle. You directly will
edit menu.lst and it's including out-commented examples, such as the
Windows chainload.

- Ralf






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Re: netinst.iso - a learning experience- Part 1 grub

2012-05-06 Thread Camaleón
On Sat, 05 May 2012 17:10:14 -0500, Richard Owlett wrote:

 Why a learning experience?
 'Cause when I've finished recovering, I'll know more ;/

That did not sound reassuring :-(

 The install went fairly smoothly until it set up Grub. 

You mean Squeeze or Wheezy netinstall?

 I had opted for guided install using all free space. It correctly
 detected Windows and asked permission to write to boot partition. I
 accepted.

After doing that, now the Windows bootloader has been replaced with 
GRUB2. There's another option, though.

 NOW, when system boots I have 2 choices - Debian and Debian in recovery
 mode.
 a. Why?

Why, what...? Because you have installed Debian, right? :-?

 b. Can I do anything at this point to allow choice to boot Windows?

Ah, that. 

Well, I don't know if that's supported right after the installation. If 
yes, if it's supported and does not work, you can open a bug report 
against the installer.

 [Not sure whether I have WinXP or Vista. Bought a used Thinkpad R61
 explicitly to experiment. No critical files there but having a familiar
 OS would be very convenient. Worst case, I advance experiments with
 Wine. I have only one must have program which depends on a Windows
 environment and it is known to run well under Wine.]

Windows is still there, don't panic, is just you:

- Have replaced its NTloader (Windows boot loader) with another boot 
loader (GRUB2).

- The new bootloder (GRUB2) has to detect (or you have to manually add an 
entry) the available OSes in your system, which is not always an easy 
task. GRUB2 has a tool for doing that automatically (by means of the os-
prober script) which I think is run by the installer but as anything in 
this world, it can fail :-)

Greetings,

-- 
Camaleón


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Re: netinst.iso - a learning experience- Part 1 grub

2012-05-06 Thread Richard Owlett

Johan Grönqvist wrote:

2012-05-06 00:10, Richard Owlett skrev:

Why a learning experience?
'Cause when I've finished recovering, I'll know more ;/

NOW, when system boots I have 2 choices - Debian and
Debian in recovery
mode.



b. Can I do anything at this point to allow choice to boot
Windows?


I think I have seen similar behaviour after installation,
and that it was fixed by running update-grub (as root) on
the command line.

After an update-grub run, I again had a windows option.

/ johan




Thank you. I thought that was the answer. But I've learned 
caution in the last 4 decades.


It worked. I now have access to Windows again (for what 
that's worth ;)




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Re: netinst.iso - a learning experience- Part 1 grub

2012-05-06 Thread Richard Owlett

Ralf Mardorf wrote:

On Sun, 2012-05-06 at 08:30 +0200, an unknown sender wrote:

b. Can I do anything at this point to allow choice to boot
Windows?


The menu is in /boot/grub/grub.cfg (GRUB 2) or /boot/grub/menu.lst (GRUB
Legacy).
You don't need to know what Windows you have installed, since it's done
by chainloading. This is from my menu.lst:

#title Windows
#rootnoverify (hd0,0)
#makeactive
#chainloader +1

Of cause, you need to uncomment it, IOW remove the #s.

If you use GRUB 2, more likely for a default Debian install ;), than
perhaps running update-grub with root privileges might add Windows
automatically to grub.cfg. If not, I would recommend to switch to GRUB
Legacy, since for a beginner it's easier to handle. You directly will
edit menu.lst and it's including out-commented examples, such as the
Windows chainload.

- Ralf



Yes I have GRUB2, a default Debian install from netist.iso 
downloaded yesterday.

update-grub successfully did its thing.

Using Grub Legacy is attractive.
  How complex would the change be?
  In the future would an update or upgrade try to move 
me back to GRUB2?


I know that part of advantage of GRUB2 is handling newer 
hardware/technology. I would have to check to see if that 
would be helpful to me in near future.




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Re: netinst.iso - a learning experience- Part 1 grub

2012-05-06 Thread Richard Owlett

Camaleón wrote:

On Sat, 05 May 2012 17:10:14 -0500, Richard Owlett wrote:


Why a learning experience?
'Cause when I've finished recovering, I'll know more ;/


That did not sound reassuring :-(


Why? Although the trigger for moving to Linux was annoyance 
with Gates  Co., my methodology is *STRONGLY* motivated my 
learning the guts of Linux. Being retired means I have time 
in abundance.





The install went fairly smoothly until it set up Grub.


You mean Squeeze or Wheezy netinstall?


Version 6.0.4 Without double checking I believe that's 
Squeeze.


That caused me to notice that there was no intuitively 
obvious way to determine what version is running. I had to 
look at the file name of the iso file.






I had opted for guided install using all free space. It correctly
detected Windows and asked permission to write to boot partition. I
accepted.


After doing that, now the Windows bootloader has been replaced with
GRUB2. There's another option, though.


NOW, when system boots I have 2 choices - Debian and Debian in recovery
mode.
a. Why?


Why, what...? Because you have installed Debian, right? :-?


This was the latest of several installs. All the previous 
installs had access to the Windows OS.






b. Can I do anything at this point to allow choice to boot Windows?


Ah, that.

Well, I don't know if that's supported right after the installation. If
yes, if it's supported and does not work, you can open a bug report
against the installer.


[Not sure whether I have WinXP or Vista. Bought a used Thinkpad R61
explicitly to experiment. No critical files there but having a familiar
OS would be very convenient. Worst case, I advance experiments with
Wine. I have only one must have program which depends on a Windows
environment and it is known to run well under Wine.]


Windows is still there, don't panic, is just you:

- Have replaced its NTloader (Windows boot loader) with another boot
loader (GRUB2).

- The new bootloder (GRUB2) has to detect (or you have to manually add an
entry) the available OSes in your system, which is not always an easy
task. GRUB2 has a tool for doing that automatically (by means of the os-
prober script) which I think is run by the installer but as anything in
this world, it can fail :-)

Greetings,



update-grub solved immediate problem.



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Re: netinst.iso - a learning experience- Part 1 grub

2012-05-06 Thread Camaleón
On Sun, 06 May 2012 07:26:39 -0500, Richard Owlett wrote:

 Camaleón wrote:
 On Sat, 05 May 2012 17:10:14 -0500, Richard Owlett wrote:

 Why a learning experience?
 'Cause when I've finished recovering, I'll know more ;/

 That did not sound reassuring :-(
 
 Why? Although the trigger for moving to Linux was annoyance with Gates 
 Co., my methodology is *STRONGLY* motivated my learning the guts of
 Linux. Being retired means I have time in abundance.

Why having to recover does not sound reassuring? 

Well, recover means something have failed (or something went wrong) and 
of course a failure is not something I would tag as a pleasurable 
experience :-)
 
 You mean Squeeze or Wheezy netinstall?
 
 Version 6.0.4 Without double checking I believe that's Squeeze.
 
 That caused me to notice that there was no intuitively obvious way to
 determine what version is running. I had to look at the file name of the
 iso file.

You soon will get accustomed to match the numbers with the codename :-)

I remember quite well Lenny was 5.x and Squeeze 6.x because I started 
using Debian since Lenny but if you ask me what's the codename for Debian 
3.x I can't tell unless I read it.

 NOW, when system boots I have 2 choices - Debian and Debian in
 recovery mode.
 a. Why?

 Why, what...? Because you have installed Debian, right? :-?
 
 This was the latest of several installs. All the previous installs had
 access to the Windows OS.

The last time I dual-booted a system it was a mix between windows 98 and 
SuSE 8.2 and I used GRUB Legacy. By that time (~8 years ago) I had to 
manually add the Windows stanza at GRUB's menu so Windows could be booted 
from there. I mean, old linux users are used to do things manually but 
now that's starting to change (I still don't know if that's for good, 
though...).

 Windows is still there, don't panic, is just you:

 - Have replaced its NTloader (Windows boot loader) with another boot
 loader (GRUB2).

 - The new bootloder (GRUB2) has to detect (or you have to manually add
 an entry) the available OSes in your system, which is not always an
 easy task. GRUB2 has a tool for doing that automatically (by means of
 the os- prober script) which I think is run by the installer but as
 anything in this world, it can fail :-)


 update-grub solved immediate problem.

Yes, because running the command should trigger the os-prober script 
(unless it has been explicitly disabled) :-)

Greetings,

-- 
Camaleón


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Re: netinst.iso - a learning experience- Part 1 grub

2012-05-06 Thread Ralf Mardorf
On Sun, 2012-05-06 at 15:40 +0200, an unknown sender wrote:
 Using Grub Legacy is attractive.
How complex would the change be?

Remove GRUB 2 and install GRUB Legacy. That's it.

In the future would an update or upgrade try to move 
 me back to GRUB2?

I don't think so.

 I know that part of advantage of GRUB2 is handling newer 
 hardware/technology. I would have to check to see if that 
 would be helpful to me in near future.

I didn't know about that.

- Ralf


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Re: netinst.iso - a learning experience- Part 1 grub

2012-05-06 Thread Brian
On Sun 06 May 2012 at 07:05:42 -0500, Richard Owlett wrote:

 Ralf Mardorf wrote:

 If you use GRUB 2, more likely for a default Debian install ;), than
 perhaps running update-grub with root privileges might add Windows
 automatically to grub.cfg. If not, I would recommend to switch to GRUB
 Legacy, since for a beginner it's easier to handle. You directly will
 edit menu.lst and it's including out-commented examples, such as the
 Windows chainload.

 Yes I have GRUB2, a default Debian install from netist.iso downloaded 
 yesterday.
 update-grub successfully did its thing.

 Using Grub Legacy is attractive.
   How complex would the change be?

Not too complex, I'd think - but why bother? Nobody cares about GRUB
legacy in any serious way. You can choose to be among the dwindling
number of people who still use it but it will continue to rot away
while GRUB 2 receives all the attention.


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Re: netinst.iso - a learning experience- Part 1 grub

2012-05-06 Thread Johan Grönqvist

2012-05-06 14:26, Richard Owlett skrev:

Version 6.0.4 Without double checking I believe that's Squeeze.

That caused me to notice that there was no intuitively obvious way to
determine what version is running. I had to look at the file name of the
iso file.


I would look at the file /etc/debian_version. In your case it probably says

# cat /etc/debian_version
6.0.4

Knowing the mapping between version numbers and names is a different 
problem, as Camaleon wrote.



/ johan


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Re: netinst.iso - a learning experience- Part 1 grub

2012-05-06 Thread Andrew M.A. Cater
On Sun, May 06, 2012 at 04:36:05PM +0200, Ralf Mardorf wrote:
 On Sun, 2012-05-06 at 15:40 +0200, an unknown sender wrote:
  Using Grub Legacy is attractive.
 How complex would the change be?
 
 Remove GRUB 2 and install GRUB Legacy. That's it.
 
 In the future would an update or upgrade try to move 
  me back to GRUB2?
 
 I don't think so.
 

Quite possibly. Grub legacy is not maintained to the same extent.


  I know that part of advantage of GRUB2 is handling newer 
  hardware/technology. I would have to check to see if that 
  would be helpful to me in near future.
 
 I didn't know about that.
 
 - Ralf
 

Grub2 is, potentially, the way forward not just for Debian but
for other Linux distributions.

If you've a working GRUB2 - you're fine for a few years yet :)

Just my 0.02

AndyC


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Re: netinst.iso - a learning experience- Part 1 grub

2012-05-06 Thread Gary Dale

On 06/05/12 12:01 PM, Andrew M.A. Cater wrote:

On Sun, May 06, 2012 at 04:36:05PM +0200, Ralf Mardorf wrote:

On Sun, 2012-05-06 at 15:40 +0200, an unknown sender wrote:

Using Grub Legacy is attractive.
How complex would the change be?

Remove GRUB 2 and install GRUB Legacy. That's it.


In the future would an update or upgrade try to move
me back to GRUB2?

I don't think so.


Quite possibly. Grub legacy is not maintained to the same extent.
I think you'd need a dist-upgrade to replace grub with grub2. A regular 
upgrade simply updates existing packages on your system. A dist-upgrade 
replaces obsolete packages with their current equivalents.


You could of course hold grub to prevent it from being replaced.




I know that part of advantage of GRUB2 is handling newer
hardware/technology. I would have to check to see if that
would be helpful to me in near future.

I didn't know about that.

- Ralf


Grub2 is, potentially, the way forward not just for Debian but
for other Linux distributions.

If you've a working GRUB2 - you're fine for a few years yet :)

Just my 0.02

AndyC


Agreed. Going back to grub from grub2 seems pointless. However, I do 
note that one advantage grub had over lilo was that you didn't need to 
update your grub install each time you installed a kernel upgrade the 
way you did with lilo. Grub2 changes that - you have to update-grub 
frequently, although that is done automatically by apt after upgrades 
that affect the boot process.


Unfortunately it doesn't always work properly on Squeeze. I have a 
system that uses mdadm with v1.2 headers, allowing partitions within a 
RAID partition, so that my / partition is /dev/md1p1. /etc/fstab and 
/boot/grub/grub.cfg use UUIDs but the update-grub puts in the wrong UUID 
- the one for /dev/md1 instead of /dev/md1p1. I have to manually correct 
that each time. If I don't, the system won't boot.


Fortunately, it's fixed on Wheezy but I don't run Wheezy on servers.


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Re: netinst.iso - a learning experience- Part 1 grub

2012-05-06 Thread Ralf Mardorf
On Sun, 2012-05-06 at 19:32 +0200, an unknown sender wrote:
 Unfortunately it doesn't always work properly on Squeeze.

update-grub never worked for my needs, on all distros I use(d) but to be
fair, it's easy to edit grub.cfg manually too. I used grub 2 a long time
myself, some time ago I switched back to GRUB Legacy, since menu.lst is
shorter and there are less files in /boot/grub. Btw. disabling
update-grub wasn't save, since updates sometimes overwrite GRUB 2 stuff
and btw. sometimes update-grub run several times when upgrading which
can take a long time.

- Ralf


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netinst.iso - a learning experience- Part 1 grub

2012-05-05 Thread Richard Owlett

Why a learning experience?
'Cause when I've finished recovering, I'll know more ;/

The install went fairly smoothly until it set up Grub. I had 
opted for guided install using all free space. It correctly 
detected Windows and asked permission to write to boot 
partition. I accepted.


NOW, when system boots I have 2 choices - Debian and Debian 
in recovery mode.

a. Why?
b. Can I do anything at this point to allow choice to boot 
Windows?
[Not sure whether I have WinXP or Vista. Bought a used 
Thinkpad R61 explicitly to experiment. No critical files 
there but having a familiar OS would be very convenient. 
Worst case, I advance experiments with Wine. I have only one 
must have program which depends on a Windows environment and 
it is known to run well under Wine.]


TIA


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Re: netinst.iso - a learning experience- Part 1 grub

2012-05-05 Thread Johan Grönqvist

2012-05-06 00:10, Richard Owlett skrev:

Why a learning experience?
'Cause when I've finished recovering, I'll know more ;/

NOW, when system boots I have 2 choices - Debian and Debian in recovery
mode.



b. Can I do anything at this point to allow choice to boot Windows?


I think I have seen similar behaviour after installation, and that it 
was fixed by running update-grub (as root) on the command line.


After an update-grub run, I again had a windows option.

/ johan




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