USB Boot trick

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Posts: 3
Joined: 08 Jan 2008, 02:16

USB Boot trick

Post by joelfranco » 08 Jan 2008, 02:24

Dear System Rescue CD mentors,

I tried to add a valuable information (IMHO) to the USB boot to work but i can't edit the USB boot page howto.

The important point is to add this:

# ms-sys -s /dev/sdX

after the device partition, because sometimes the MBR in the device may be not compatible with that BIOS is waiting (fixme).

I don't know why it works, but it works :)

I have found this tip after a lot work trying to solve the boot fail problem.

Thank You and Congratulations by the excellent product called SystemRescueCD.

Posts: 48
Joined: 16 May 2008, 21:10
Location: U.S.A.

Post by rbeede » 03 Dec 2008, 17:08

That method uses a Microsoft style boot loader. Some buggy BIOS (like Award) are hard coded to only boot one type of boot loader for usb.

The SysLinux project actually has this bug documented. Award recently fixed this bug, but your motherboard has to be fairly new for it to work correctly.

Syslinux also includes some work arounds. The best I've seen thus far is creating an actual partition on the usb device (many come without any partitions) as that tends to boot better on a variety of machines.

Also BartPE includes a tool that will special partition a usb device to have a single 4th primary partition. This works better with some buggy motherboards.

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