This script has been updated 25 September 2007 - if you have a problem with this version, you can try the old page & old script.
Copy your standard firmware image (for me it is
U96CPQ163.bin) into the
directory you made when you were patching/building grub - it's 94Meg for the
one I use, so it might take a moment to copy! You must use the correct
firmware image for your model of T20.
Copy the kernel and initrd from your DSL flash drive into the
directory. I did it like this (starting in the
$ mkdir mnt $ sudo mount /dev/sda1 mnt Password: ******* $ cp mnt/linux24 mnt/minirt24.gz . `mnt/linux24' -> `./linux24' `mnt/minirt24.gz' -> `./minirt24.gz' $ sudo umount mnt $ rmdir mnt
Note that your flash drive might not be
/dev/sda1 - you'll have to figure this one out yourself.
Get the script
Create a file called build-devosl.sh in the
t20 directory containing this:
NOTE: You need to be root for this section.
Check for the loop module
# lsmod | grep '^loop' loop 59596 0
- note that you'll probably have different numbers displayed, and it might
say something about
not used, all we really care is that it says
loopat the beginning of the line.
If nothing is displayed, try this:
# modprobe loop
and then try the above lsmod/grep command again.
Check for some loop devices
# ls /dev/loop* /dev/loop0 /dev/loop1 /dev/loop2 /dev/loop3 /dev/loop4 /dev/loop5 /dev/loop6 /dev/loop7
You want some loop devices listed here. You may have something slightly
different, including possibly a
/dev/loop/ directory - I think that if you
/dev/loop/ listed then it's probably OK. If you managed to load the
loop module, but still have no loop devices, you may need to use
mknod - look it up on the web.
Run the script
At this point, you should have these files/directories in the
$ ls build-devosl.sh devosl-grub.patch grub-0.97/ grub-0.97.tar.gz linux24 minirt24.gz U96CPQ163.bin
- Note that your shell may or may not display the
/at the end of directory names when you do
- You may or may not have a
mnt-DEvoSLdirectory in there. If you don't already, the script will create it when it needs to.
- Extra files in the directory shouldn't hurt, but might get overwritten.
- You need the correct firmware image for your machine, so may have a
different file from
You have to be root to do this; in the
t20 directory, do:
# chmod +x build-devosl.sh # ./build-devosl.sh (lots of stuff displayed, hopefully no errors)
You now have a bootable image (
bootp.bin) to install in your T20!
Flash the T20 with this, then plug in your DSL USB-flashdrive, reboot the T20, and rejoice!
Notes and possible problems
The first part of the script has a bunch of lines defining default locations and names of things - you probably don't need to fiddle with them. Most of these things can be adjusted with command-line arguments - do "./build-devosl.sh -h" to get a usage display.
This script has only been tested with the
U96CPQ163.BINfirmware which comes in the package called
SP22462. I've tried to make the script general-purpose, but it is untested. If you need to use a different standard firmware file from what I used (which you must do if you have a different model from me), you can just specify the name on the commandline when you run the script - it's not necessary to edit the script just for that change. eg.:
./build-devosl.sh -f SomeOtherFirmware
Wine works for extracting the firmware bin file from the windows executable it comes in (or you can just use a windows computer).
This script has been tested with DSL v3.3 Embedded version, but should work equally well with files from the CD (ISO) version.
If you are running Debian and the script complains about not being able to find
mkfs.vfat, then you may need to install the
/dev/loop1is already being used by something else then you need to modify the script to use another loop device, or use the "
-l loopdevice" command-line option.
The script doesn't always clean up after itself if it fails, so you might need to use
umount mntwould unmount whatever is mounted on mnt (note the lack of an
umountcommand - it's not
losetup -atells you what loops are setup. This script uses
losetup -d /dev/loop1would detach loop1
To become root on Ubuntu, you could do
sudo suand it would probably be fine. A more "thorough" way to become root is
sudo su -, but that will change directory to root's home, and then you need to find your way back to your
Zeroing out the partition is not necessary, but it does make the image file much more compressible - useful if you want to bzip it for email. The standard 94M image bzips to 72M, whilst the DEvoSL image bzips to 2M. The script will need modifying if you want to do zeroing.
Normal display from
build-devosl.shis something like this:
# ./build-devosl.sh === Checking tools ================================================== Checking 'mount' Checking 'umount' Checking 'losetup' Checking 'dd' Checking 'mkfs.vfat' Checking 'strings' Check that we can use real echo (/bin/echo). Check that echo handles octal escapes. Check that the chosen loop device exists. Check/setup mount directory. Check source image exists and is readable. Check grub stage1 and stage2 exist and are readable. Check kernel and initrd exist and are readable. === Start working =================================================== Copying standard firmware ' ./U96CPQ163.bin ' to working file './bootp.bin' Making image './bootp.bin' accessible by anyone. Searching for WinNT Master Boot Record. Disk start set to 834236 Partition start set to 834748 Checking MBR has expected ID of 0x55 0xAA at end. 2+0 records in 2+0 records out 2 bytes (2 B) copied, 3.8995e-05 seconds, 51.3 kB/s MBR 'confirmed' at 834236 === Tweak partitioning ============================================== Setting the partition type as FAT (standard was NTFS). 1+0 records in 1+0 records out 1 byte (1 B) copied, 5.498e-05 seconds, 18.2 kB/s === Setup bootloader ================================================ Setting up loop for partition (start at 834748, length unconstrained). Creating FAT filesystem, with large reserved space for grub. mkfs.vfat 2.11 (12 Mar 2005) Loop device does not match a floppy size, using default hd params Installing grub stage1 (part1). 3+0 records in 3+0 records out 3 bytes (3 B) copied, 0.00016075 seconds, 18.7 kB/s Installing grub stage1 (part2). 450+0 records in 450+0 records out 450 bytes (450 B) copied, 0.0010693 seconds, 421 kB/s Installing grub stage2. 148+1 records in 148+1 records out 76106 bytes (76 kB) copied, 0.00321247 seconds, 23.7 MB/s === Copy files ====================================================== Mounting image. Copying kernel. Copying initrd. === Close up ======================================================== Unmounting image Detaching loop. === Tidying ========================================================= === Finished! ======================================================= Done! You should now flash the T20 with './bootp.bin'
Thanks to Craig (Gizmomelb) for initial testing.
If you find any errors, try contacting me - Karl Mowatt-Wilson