Instructions for making USB-Bootable installation disk for 64bit SL6.1
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0. These instructions are intended for making a 64-bit SL6.1 installer on a USB Flash disk. 8GB flash media is recommended.
1. The ISO DVD images are NOT included. Download your own copies, before following these instructions.
2. Prepare the USB disk:
a) su -
b) fdisk -H224 -S56 /dev/sdX, make onepartition of type "83-Linux", mark it bootable. Result should look like this:

root# fdisk -l /dev/sdX

Disk /dev/sdc: 7996 MB, 7996440576 bytes
224 heads, 56 sectors/track, 1245 cylinders
Units = cylinders of 12544 * 512 = 6422528 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

   Device Boot      Start         End      Blocks   Id  System
/dev/sdc1   *           1        1245     7808612   83  Linux

b) mke2fs -j /dev/sdX1; tune2fs -c0 -i0 /dev/sdX1
c) mount /dev/sdX1 /mnt/tmp

3. Copy the data:
a) cd to_the_directory_with_this_readme_file; rsync -av . /mnt/tmp
b) cd to_the_directory_with_the_SL61_iso_images; rsync -av SL-61-*-DVD1.iso SL-61-*-DVD2.iso /mnt/tmp

4. Make disk bootable
a) cd /mnt/tmp/isolinux
b) cat ./mbr.bin > /dev/sdX (*NOT* /dev/sdX1)
c) ./extlinux -i .

5. cd /; umount /mnt/tmp
6. try to boot from the newly made USB disk.

//KO 1DEC2011