Backtrack 5 R3 USB not bootable?

Hi, I have a problem booting from my BT5 live USB.

All of the obvious things seem to be ok:

• Using the latest Backtrack ISO (64bit)
• md5sum is correct
• I can boot Linux Mint from the same USB, no problem with that
• I have checked the boot order is correct
• I've tried UNetBootin, LinuxLive USB Creator, and a couple of others to make the USB bootable.

But when I try to boot from the USB, it goes straight to the HDD's boot selection screen. If I remove the HDD from the boot order, leaving only USB, it just goes back to BIOS setup.

Does anyone has any ideas for what might be the problem here? Thanks.

You might try booting it with GRUB Legacy.
1: Delete all isolinux and UNetbootin related files and folders
2: Create a file named usbmarkerfile.txt on the root of your drive
3: Download latest GRUB4DOS and extract it and place the files and folders on the root of your drive
4: Download grubinst and run it http://download.gna.org/grubutil/gru...2008-01-01.zip
5: Disk -> Choose your disk -> Refresh - Whole Disk (MBR) - Install
6: Create a file on the root of your drive named menu.lst (NOT .txt!) which contains this:

Code:

---

title Backtrack 5 R3 X64 Persistent
find --set-root --ignore-floppies --ignore-cd /usbmarkerfile.txt
kernel /casper/ubnkern text splash vga=791-- nouveau.modeset=0 quit noprompt
initrd /casper/ubninit

---

If you want persistence, create a partition on the drive called EXACTLY casper-rw and make it ext4. Then add "BOOT=casper boot=casper persistent" to the end of the menu.lst entry


Good luck!

same with me previously .. but i try to re-download again eventhough the md5 checksum is correct and create by linuxlive usb creator again.

And all of process is working a usb is live ... no problem with that.

I think your distro has an error. I try using BT5R3 GNOME 64 bits

Are you still experiencing issues?

I would suggest opening up GParted and looking at the thumb drive from there. The simplest way to get a live usb going...

Download/install GParted.
Insert thumb drive to be used.
Backup anything you don't want to lose.
Run GParted and select the thumb drive.
Unmount the thumbdrive if it is already mounted.
Delete the partition it currently is using.
Create a new FAT32 partition with a label and / boot location.
Once the new partition is created, select Manage Flags and set the Boot and LBA on.
Download/install unetbootin.
Download the BT5r3 (or whichever flavor you're using).
MD5Sum check on the ISO, if it's good, continue.
Mount the thumbdrive.
Run unetbootin, select drive and iso, run it.

You should be good to go.