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 Forum index » House Training » Beginners Help ( Start Here)
Bootable pendrive or SD card *without* using a CD
Moderators: Flash, Ian, JohnMurga
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Sylvander

Joined: 15 Dec 2008
Posts: 2855
Location: West Lothian, Scotland, UK
PostPosted: Fri 10 Aug 2012, 08:41    Post subject:  
1.
darkcity wrote:
what files are on the flash drive?

See screenshot below.

2.
darkcity wrote:
is puppy fully installed to the CD?

Yes...but Lupu-528.005 is one of at least 6 Puppies that booted OK on my old PC, but won't on this brand-new PC.
Unable to access the SATA DVD-RW drive?
And must be given its SFS file on a USB drive.
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sfeeley

Joined: 14 Feb 2010
Posts: 807
PostPosted: Fri 10 Aug 2012, 10:52    Post subject:  
I've used unetbootin successfully to do this.

But, in some cases, I found that using the unetbootin install takes quite a bit longer to find the savefile. (on some machines it boots plenty fast, so the following may not apply)

If Unetbootin boots slowly, I do the following
1) install on flash or sdhc using unetbootin
2) boot puppy pfix=ram using the card that unetbootin created in step 1
3) use the puppy universal installer to re-install on the flash card, (sometimes I'll use gparted to erase everything that unetbootin did).

This doesn't need any CDs, and will allow you to use install onto a flashdisk using the preferred universal installer
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rcrsn51


Joined: 05 Sep 2006
Posts: 7756
Location: Stratford, Ontario
PostPosted: Fri 10 Aug 2012, 11:30    Post subject:  
sfeeley wrote:
But, in some cases, I found that using the unetbootin install takes quite a bit longer to find the savefile.

Check the syslinux.cfg file on the flash drive. Does it have "pmedia=usbflash" or something else?
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Dave_G


Joined: 21 Jul 2011
Posts: 459
PostPosted: Fri 10 Aug 2012, 13:51    Post subject:  
I see some people use isolinux whilst others mention syslinux.
This had me confused, but finally found something that makes sense.

This could also account for some of the problems experienced by others
with their USB flash drives not booting:

From http://sid.ethz.ch/debian/syslinux/syslinux-3.75+dfsg/doc/isolinux.txt

Quote:


++++ HYBRID CD-ROM/HARD DISK MODE ++++

Starting in version 3.72, ISOLINUX supports a "hybrid mode" which can
be booted from either CD-ROM or from a device which BIOS considers a
hard disk or ZIP disk, e.g. a USB key or similar.

To enable this mode, the .iso image should be postprocessed with the
"isohybrid" script from the utils directory:

isohybrid filename.iso

This script creates the necessary additional information to be able to
boot in hybrid mode. It also pads out the image to an even multiple
of 1 MB.

This image can then be copied using any raw disk writing tool (on Unix
systems, typically "dd" or "cat") to a USB disk, or written to a
CD-ROM using standard CD burning tools.

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rjbrewer


Joined: 22 Jan 2008
Posts: 4355
Location: merriam, kansas
PostPosted: Fri 10 Aug 2012, 15:15    Post subject: Re: Bootable pendrive or SD card *without* using a CD  
tlchost wrote:
OscarTalks wrote:

Smelly old windows sits unused on the internal HDD but I can boot into it by using the BIOS if I want to, otherwise Puppy can mount it and use it as storage.


Of course could use one of the smelly windows applications that make a bootable USB drive from a linux iso.

Thom


A valid point!

My little MSI netbook only had Win7 installed.
I installed a Puppy4.12 iso to a 128mb sd card using
UNetbootin for Windows.

Very simple and easy.
_________________

Inspiron 700m, Pent.M 1.6Ghz, 1Gb ram.
Msi Wind U100, N270 1.6>2.0Ghz, 1.5Gb ram.
Full installs
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tlchost

Joined: 05 Aug 2007
Posts: 1487
Location: Baltimore, Maryland USA
PostPosted: Fri 10 Aug 2012, 15:53    Post subject: Re: Bootable pendrive or SD card *without* using a CD  
rjbrewer wrote:

My little MSI netbook only had Win7 installed.
I installed a Puppy4.12 iso to a 128mb sd card using
UNetbootin for Windows.
Very simple and easy.


I've always used http://www.linuxliveusb.com/. It also allow you to create not only a usb that boots into Linux, but also a virtual Puppy you can run under Windows.

Thom
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rjbrewer


Joined: 22 Jan 2008
Posts: 4355
Location: merriam, kansas
PostPosted: Fri 10 Aug 2012, 17:37    Post subject: Re: Bootable pendrive or SD card *without* using a CD  
tlchost wrote:
rjbrewer wrote:

My little MSI netbook only had Win7 installed.
I installed a Puppy4.12 iso to a 128mb sd card using
UNetbootin for Windows.
Very simple and easy.


I've always used http://www.linuxliveusb.com/. It also allow you to create not only a usb that boots into Linux, but also a virtual Puppy you can run under Windows.

Thom


I already have Lucid 528 (full) on a partition.
OSX Snow Leopard is next.
_________________

Inspiron 700m, Pent.M 1.6Ghz, 1Gb ram.
Msi Wind U100, N270 1.6>2.0Ghz, 1.5Gb ram.
Full installs
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Burn_IT

Joined: 12 Aug 2006
Posts: 649
Location: Tamworth UK
PostPosted: Sat 11 Aug 2012, 07:38    Post subject:  
Isolinux, Syslinux, and I think another name are all the same Rose by a different name nowadays.
The script you mention is a special one that allows boot from USB that is recognised by the machine as something other than a flash drive.
For instance some machines (and even different drives) treat USB as a floppy drive, some as a hard drive, some as a Zip(superfloppy) drive and some even as a CD. That script is supposed to allow booting whatever it is.
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Dave_G


Joined: 21 Jul 2011
Posts: 459
PostPosted: Sat 11 Aug 2012, 15:42    Post subject:  
Thanks Burn_IT.
I just found it strange that when one makes a Puppy bootable USB flash drive
using UnetBootin there is both isolinux.cfg and syslinux.cfg but only isolinux.bin and no syslinux.bin on the USB flash drive.

Contents of isolinux.cfg:

Code:

default puppy
display boot.msg
prompt 1
timeout 50

F1 boot.msg
F2 help.msg

label puppy
kernel vmlinuz
append initrd=initrd.gz pmedia=cd


Contents of syslinux.cfg:

Code:

default menu.c32
prompt 0
menu title UNetbootin
timeout 50

label unetbootindefault
menu label Default
kernel /ubnkern
append initrd=/ubninit pmedia=usbflash

label ubnentry0
menu label puppy
kernel /VMLINUZ
append initrd=/INITRD.GZ pmedia=usbflash


I'm guessing that the isolinux.cfg was left over from the original iso which was meant for a CD.
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Burn_IT

Joined: 12 Aug 2006
Posts: 649
Location: Tamworth UK
PostPosted: Sat 11 Aug 2012, 15:54    Post subject:  
It does look that way although it could be that it chooses which to use depending on what device it is going to boot from.
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Dave_G


Joined: 21 Jul 2011
Posts: 459
PostPosted: Sat 11 Aug 2012, 15:59    Post subject:  
Burn_IT wrote:
....although it could be that it chooses which to use depending on what device it is going to boot from.


Also makes a lot of sense.
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