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 Forum index » Advanced Topics » Cutting edge
Grub4DosConfig
Moderators: Flash, Ian, JohnMurga
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shinobar


Joined: 28 May 2009
Posts: 2618
Location: Japan

PostPosted: Thu 18 Nov 2010, 01:13    Post subject: Live CD from floppy boot  

gcmartin wrote:
Does this mean that if I have QuickPET/PUP5.2 LiveCD in cdrom at diskette boot time, I will not be able to select an option to start the LiveCD to boot?

You cannot with grub4dos.

If the PC cannot boot off from CD, it means the BIOS cannot handle the CD.
At the boot stage, the boot loader grub4dos reads the files on the CD via BIOS.
But if the BIOS cannot handle the CD, the boot loader grub4dos cannot.

If you want to read the files, vmlinz and initrd.gz on the CD at the boot stage,
there is an option using PLOP.
http://www.murga-linux.com/puppy/viewtopic.php?t=40226

WakePup2 was the tool for this purpose, but i don't know on what hardware does it work or not. It depends on what CD driver it has. (also same as for PLOP)
http://www.murga-linux.com/puppy/viewtopic.php?t=19002&start=19

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Reaperz
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PostPosted: Thu 18 Nov 2010, 01:29    Post subject:  

Doesn't Syslinux have better compatibility booting off of disc drives?

I personally use Grub4Dos in most instances, with the only caveat being that I have to chainload a Plop floppy image to boot from USB on one of my older PC's.
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shinobar


Joined: 28 May 2009
Posts: 2618
Location: Japan

PostPosted: Thu 18 Nov 2010, 02:38    Post subject: Syslinux  

Reaperz wrote:
Doesn't Syslinux have better compatibility booting off of disc drives?

Think syslinux does not support NTFS.
And hard to make multiple boot across partitions and drives.
Grub4Dos is universal.

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nooby

Joined: 29 Jun 2008
Posts: 10557
Location: SwedenEurope

PostPosted: Thu 18 Nov 2010, 04:22    Post subject:  

I got SuperOS to boot frugally too. Only needed to change the part referring to initrd.gz to lz.

Jolicloud boots too so that is cool.

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nancy reagan

Joined: 22 Jan 2009
Posts: 510

PostPosted: Thu 18 Nov 2010, 12:46    Post subject: If only I could do this  

Reaperz wrote:
Doesn't Syslinux have better compatibility booting off of disc drives?

I personally use Grub4Dos in most instances, with the only caveat being that I have to chainload a Plop floppy image to boot from USB on one of my older PC's.


Would it be hard to describe this method so that even a simple soul like me would understand it ? (what is chainloading ? and edit syslinux ?)

For my compu does not boot usb and therefore the Plopflop does not read the grub on the stick.


thanks in advance.
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nooby

Joined: 29 Jun 2008
Posts: 10557
Location: SwedenEurope

PostPosted: Thu 18 Nov 2010, 15:36    Post subject:  

Nancy, the following suggestion is a wild card so only use it if Shinobars or Reapers don't have to tool needed.

I had a HP/Compaq from say 2002 or 2003 maybe that I found in the dumpster.

If failed to boot an USB with puppy on it.

Then I used a CD that it booted and made a fake frugal install.

It only had two files instead of three so the .sfs was missing but it looked like the real thing from boot perspective.

So when I start it up and pretend it should boot from HDD if finds this faked boot menu.lst that looks like an ordinary does.

Anyway. The script for booting some Puppies mount all hardware connected.

So if finds the .sfs on the USB and boot it and it works .

But it was some 8 months ago I tested it.

Wild card because if BIOS don't allow USB to be seen at boot time then why would my wild card see it?
Maybe because the script can do things that BIOS don't do? But most likely me is wrong but why I suggest it is that it did book an USB that failed to boot any other way on that machine and it is a fast and nondestructive test. .

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noryb009

Joined: 20 Mar 2010
Posts: 539

PostPosted: Thu 18 Nov 2010, 19:16    Post subject:  

Then should we worry about this much? What is the chances of:

1) A user travailing. (pretty common)
2) That has a puppy linux USB.
3) Who has a password on it. (most people would have it on a USB)
4) Who runs into an emergency.
5) Uses accents in their password.
6) Can't use windows for it.
7) Can't use pfix=ram.
8) Doesn't have anyone around them to help.

Doesn't sound too common.
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nancy reagan

Joined: 22 Jan 2009
Posts: 510

PostPosted: Fri 19 Nov 2010, 10:43    Post subject:  

@nooby

Thanks for yer advice though I do not quite understand will give it a try
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shinobar


Joined: 28 May 2009
Posts: 2618
Location: Japan

PostPosted: Sat 20 Nov 2010, 03:54    Post subject: Grub4DosConfig v1.6.2
Subject description: Bugfix release
 

Bugfix released Grub4DosConfig v1.6.2. See the top post of this topic.
# 20nov10 v1.6.2: fix RAM mode, fix puppyoptions, single item for single windows, wubi support

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smokey01


Joined: 30 Dec 2006
Posts: 1806
Location: South Australia

PostPosted: Sat 20 Nov 2010, 08:31    Post subject: Re: Grub4DosConfig v1.6.2
Subject description: Bugfix release
 

shinobar wrote:
Bugfix released Grub4DosConfig v1.6.2. See the top post of this topic.
# 20nov10 v1.6.2: fix RAM mode, fix puppyoptions, single item for single windows, wubi support


shinobar, every time I tried Grub4Dos 1.6.1, it seem to trash the file system. I wasn't able to mount the USB flash drive and Gparted didn't recognise the file system.

I have to admit I was operating in RAM mode as I have not been able to boot from a USB Flash drive. Neither my desktop, or two different Netbooks see the USB flash drive as a bootable drive. It keeps on coming up with no OS found. Even some of the flash drives that used to boot in the past no longer work. How weird is that?

I have tried both Bootflash and PUI. In the past I have made many bootable USB flash drives. It looks like I have lost my touch or something has significantly changed that I'm not aware of in the later puppies.

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shinobar


Joined: 28 May 2009
Posts: 2618
Location: Japan

PostPosted: Sat 20 Nov 2010, 09:06    Post subject: Re: Grub4DosConfig v1.6.2
Subject description: Bugfix release
 

smokey01 wrote:
[every time I tried Grub4Dos 1.6.1, it seem to trash the file system. I wasn't able to mount the USB flash drive and Gparted didn't recognise the file system.

I have to admit I was operating in RAM mode as I have not been able to boot from a USB Flash drive. Neither my desktop, or two different Netbooks see the USB flash drive as a bootable drive. It keeps on coming up with no OS found. Even some of the flash drives that used to boot in the past no longer work. How weird is that?

I have tried both Bootflash and PUI. In the past I have made many bootable USB flash drives. It looks like I have lost my touch or something has significantly changed that I'm not aware of in the later puppies.

The Bootflash can make 5 types of USB flash, USB-HDD, USB-ZIP, USB-HDD, ComboFomat or ISO9660.
Which do you use usually?

Try the Grub4Dos and make a rescue (main) 'How to do?':
Quote:
For the USB, format(if you can erase all the data) with any of you like.
If you like Windows compatibility, recommended is NTFS.
To do it firmly, delete all partitions on the USB devide,
create new partition table (Device >> Create Partition Table) ,
Then make new partition and format.

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smokey01


Joined: 30 Dec 2006
Posts: 1806
Location: South Australia

PostPosted: Sat 20 Nov 2010, 20:43    Post subject: Re: Grub4DosConfig v1.6.2
Subject description: Bugfix release
 

shinobar wrote:
smokey01 wrote:
[every time I tried Grub4Dos 1.6.1, it seem to trash the file system. I wasn't able to mount the USB flash drive and Gparted didn't recognise the file system.

I have to admit I was operating in RAM mode as I have not been able to boot from a USB Flash drive. Neither my desktop, or two different Netbooks see the USB flash drive as a bootable drive. It keeps on coming up with no OS found. Even some of the flash drives that used to boot in the past no longer work. How weird is that?

I have tried both Bootflash and PUI. In the past I have made many bootable USB flash drives. It looks like I have lost my touch or something has significantly changed that I'm not aware of in the later puppies.

The Bootflash can make 5 types of USB flash, USB-HDD, USB-ZIP, USB-HDD, ComboFomat or ISO9660.
Which do you use usually?

Try the Grub4Dos and make a rescue (main) 'How to do?':
Quote:
For the USB, format(if you can erase all the data) with any of you like.
If you like Windows compatibility, recommended is NTFS.
To do it firmly, delete all partitions on the USB devide,
create new partition table (Device >> Create Partition Table) ,
Then make new partition and format.


shinobar I normally use the USB-HDD type. I did try the ComboFormat without success. I have tried both Vfat32, Ext2, Ext3 and Ext4. I wouldn't expect the Linux partitions to work with Grub4Dos but I tried anyway.

Quite often what I have done in the past is format the flash drive to Ext3 then install grub which allows me to have multiple distributions on the one flash drive in different directories. I can't even get this to work at the moment.

I may have missed the create partition step.

I will let you know.

Thanks

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shinobar


Joined: 28 May 2009
Posts: 2618
Location: Japan

PostPosted: Sun 21 Nov 2010, 00:09    Post subject: the Bootflash and the Grub4DosCinfig.
Subject description: Grub4DosCinfig corrupts USB flash treated with Bootflash
 

smokey01 wrote:
every time I tried Grub4Dos 1.6.1, it seem to trash the file system. I wasn't able to mount the USB flash drive and Gparted didn't recognise the file system.

I have tried both Bootflash and PUI. In the past I have made many bootable USB flash drives.
I normally use the USB-HDD type.

OK, i confirmed the Grub4DosCinfig v1.6.x corrupts USB flash treated with Bootflash USB-HDD type. Doesn't occur with the Grub4DosCinfig v1.5.x.
There maybe something incompatible with the partition table between the Bootflash and the Grub4DosCinfig. We need more investigation on this issue.
Thanks smokey01 for reportiong this issue.

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Last edited by shinobar on Sun 21 Nov 2010, 06:00; edited 1 time in total
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Stripe

Joined: 23 Jun 2010
Posts: 658
Location: In a field. England

PostPosted: Sun 21 Nov 2010, 01:05    Post subject: Re: Grub4DosConfig v1.6.2
Subject description: Bugfix release
 

[/quote]
shinobar I normally use the USB-HDD type. I did try the ComboFormat without success. I have tried both Vfat32, Ext2, Ext3 and Ext4. I wouldn't expect the Linux partitions to work with Grub4Dos but I tried anyway.
[/quote]

Hi Smokey
I have used grub4dos on ext2 and ext3 formatted usbs without any problem. (just an idea, but you are marking the bootable flag on the USB?)

Stripe
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smokey01


Joined: 30 Dec 2006
Posts: 1806
Location: South Australia

PostPosted: Sun 21 Nov 2010, 05:38    Post subject: Re: Grub4DosConfig v1.6.2
Subject description: Bugfix release
 

Stripe wrote:


Quote:

Hi Smokey
I have used grub4dos on ext2 and ext3 formatted usbs without any problem. (just an idea, but you are marking the bootable flag on the USB?)

Stripe


Yes, marked it as bootable with Gparted.

What is weird is I have made hundreds of bootable USB flash drives over a number of years. I am thinking of going back to puppy 4.3.1 where it allows you to write to the MBR without all of the work arounds. I thought maybe it was my current computer. See specs in my signature block.
I have even tried two or three different brands of USB flash drive just in case the one I was using was faulty. I even tried Fat16 as it suppose to be more reliable than Fat32.

I have also tried to boot the flash drive with an eeepc 701 and a Kogan netbook. Both don't see the USB as a bootable OS.

I'm starting to understand why many people become frustrated when trying to do this. I have never had problems in the past and could never understand their difficulty. I even included the process in my book, The Puppy Linux Book.

What I think is required is a script where the entire process is done automatically. Something like "OS2Flash sdf1" and the entire process formats the drive, makes it bootable then copies the files from the CD. Bootflash is good but it doesn't seem to work, not here anyway.

Dropping back to 4.3.1 to see if that will work.

Thanks

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