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Re: SSDT - Any more ideas??

On 21/03/13 10:00 AM, Ethan Rosenberg, PhD wrote:
On 03/21/2013 07:19 AM, Brian wrote: 
I don't really know where you are coming from and what you want to
achieve because I tend to delete list mails in HTML only on sight.
Nothing personal, you understand - just pure laziness on my part :)

However, believe it or not, you are nearly there!

On Thu 21 Mar 2013 at 00:20:39 -0400, Ethan Rosenberg, PhD wrote:


    <br>
    I'm doing something wrong and can&#8217;t figure it out.<br>
    <br>
    <br>
    Downloaded and unzipped -<br>
    rosenberg:/home/ethan/DOSutil# ls -lh<br>
    total 32M<br>
    -rw-r--r-- 1 root root&nbsp; 31M Mar 21 00:02 FreeDOS-1.1-USB-Boot.img<br>
    -rw-r--r-- 1 root root 115K Mar 21 00:02

Agreed.


    FreeDOS-1.1-USB-Boot.img.bz2<br>
    <br>
    Attempt dd -<br>
    rosenberg:/home/ethan/DOSutil# dd if=FreeDOS-1.1-USB-Boot.img
    of=/media/usbstick/FreeDOS-1.1-USB-Boot.img<br>

      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
      ^
      ^
      This is your error. The image should be written to the device,
      which is /dev/sdf in your case.

        dd if=FreeDOS-1.1-USB-Boot.img of=/dev/sdf

      Or

	cat if=FreeDOS-1.1-USB-Boot.img > /dev/sdf

I usually check the image is an isohybrid one which can be written to a
USB stick with dd or cat.

   brian@desktop:~$ /sbin/fdisk -l FreeDOS-1.1-USB-Boot.img

   Disk FreeDOS-1.1-USB-Boot.img: 32 MB, 32505856 bytes
   64 heads, 32 sectors/track, 31 cylinders, total 63488 sectors
   Units = sectors of 1 * 512 = 512 bytes
   Sector size (logical/physical): 512 bytes / 512 bytes
   I/O size (minimum/optimal): 512 bytes / 512 bytes
   Disk identifier: 0x00077d8f

                      Device Boot      Start         End      Blocks   Id   System
   FreeDOS-1.1-USB-Boot.img1   *          32       63487       31728    e  W95 FAT16 (LBA

That's ok. The image contains a filesystem.


Brian -

Thanks.

Here is what I tried.

rosenberg:/home/ethan/DOSutil# ls -la /dev/sdf
brw-rw---T 1 root floppy 8, 80 Mar 21 01:15 /dev/sdf
rosenberg:/home/ethan/DOSutil# dd if=/home/ethan/DOSutil/FreeDOS-1.1-USB-Boot.img of=/dev/sdf
63488+0 records in
63488+0 records out
32505856 bytes (33 MB) copied, 10.2578 s, 3.2 MB/s

rosenberg:/home/ethan/DOSutil# ls /dev/sdf
/dev/sdf

rosenberg:/home/ethan/DOSutil# ls -la /dev/sdf
brw-rw---T 1 root floppy 8, 80 Mar 21 01:16 /dev/sdf

I am still TOTALLY CONFUSED.

Ethan

PS Again, my apologies for the HTML posts. It was not intentional.
===========

OK found the file.  

rosenberg:/home/ethan/DOSutil# fdisk -l FreeDOS-1.1-USB-Boot.img

Disk FreeDOS-1.1-USB-Boot.img: 32 MB, 32505856 bytes
64 heads, 32 sectors/track, 31 cylinders, total 63488 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00077d8f

                   Device Boot      Start         End      Blocks   Id  System
FreeDOS-1.1-USB-Boot.img1   *          32       63487       31728    e  W95 FAT16 (LBA)

I did not realize that fdisk -l <file> would find a file.

Now I copy the Bios executable to the usb stick and boot the laptop??

Ethan
You previous problem was that /dev/sdf is a file representing a device. You need to mount the device in order to see what files it contains. You also need to do this to copy the files to it.

try:
 mount -t vfat /dev/sdf1 /media/usbstick
 cp <bios updater program> /media/usbstick
 cp <BIOS file> /media/usbstick

Note that /media/usbstick needs to exist. Also you should be root to do this (try su or sudo bash).


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