it has ubuntu live cd on one drive and i can boot to that, is it possible to
make the other partition active from that ??
the bios do have the option to boot from usb, and i have a usb stick that i
can use but it is only 4gb, what could i put on that to boot from please ??
thanks every one for your help.
"Paul" wrote in message
ok nmi have a big problem ,
i have xp on a prtition, (hardrive has 3 partitions)
but the problem is that the comp is trying to boot to the wrong partition,
the one without a operating system on it,
is there a way i can make the correct partition active ?
i have no floppy drive so a old boot floppy is out of the question,
also i have no cd/dvd drive .
its on a notebook comp.
so it has to be through a usb port,
i have been into the bios but this is very basic and do not see the
partitions, just the drive.
If it was the active (boot) flag in the MBR, you'd need to boot something
to be able to edit that.
The notebook is going to need to be able to boot from something
connected to the USB port. That would include
1) USB based floppy drive (getting hard to find)
2) USB flash stick (I have one with Ubuntu on it)
3) USB hard drive
4) USB CD/DVD drive (to boot BartPE or a Linux LiveCD
or even a Windows installer CD for recovery console)
The notebook BIOS must support booting from USB, for any of those
to work. If the notebook has a "popup boot" menu option, then chances
are it supports USB. (If you can see the initial BIOS screen, the
text may tell you which key to press. On my current motherboard, I
press F8 to access the popup boot menu. That's how I boot from USB,
like my Linux usb flash stick. On my laptop, that screen goes by
so fast, I have to press "Pause" to be able to read the screen.)
It's also possible to disconnect the laptop hard drive, remove
it from the computer, and take it to another computer for editing.
Since the other computer has a working boot disk, you'll have ways
to do the repair (set the boot flag, if that is what you want).
To connect a laptop 44 pin IDE drive to a desktop, you need a 40 pin
to 44 pin adapter. To connect a laptop SATA drive, just the ordinary
desktop SATA cable is good enough (that's what I use for my laptop
drive, when I plug it into my desktop). So there are ways to
connect the laptop drive. Mine comes out real easy - remove two screws,
remove bottom door from laptop, undo one screw holding hard drive
tray, slide tray backwards (to release SATA connector), and pull up
and out of laptop. I've backed up the laptop drive a few times,
by just carrying it over to the desktop computer and plugging it in.
If I brought over my laptop drive to the desktop, I could look at it
with this program (free). This edits the MBR and the four primary
partitions stored in part of it.
ftp://ftp.symantec.com/public/english_us_canada/tools/pq/utilities/PTEDIT32.zip
In this example, the boot flag (0x80) is set on the second partition.
You can over-type any of the fields in here, and save the result.
Of course, you can trash things if you make a mistake, which is why
you'd keep a screenshot of this program before making changes

Note that, by editing manually this way, you can mess things up
(i.e. remove all boot flags, or install more than one boot flag.
I think this tool will let you do some really stupid things - it
doesn't care.)
http://www.vistax64.com/attachments...n-partiton-recovery-dell-xps-420-dell-tbl.gif
I think changing the boot flag can also be done with diskpart.
Diskpart requires you to be running something Windows-like.
It appears the "active" command will do it. With Diskpart, you
have to "select" the partition you're working on first. The
partition "with the focus", becomes active when you enter the
"active" command in an interactive Diskpart session. Diskpart
is pretty easy to use, once you've played with it a bit. It
has enough help options, you can almost get the hang of it
without a lot of web pages.
http://technet.microsoft.com/en-us/library/cc770877(WS.10).aspx
Paul