Instructions for making USB-Bootable installation disk for 64bit SL6.5
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0. These instructions are intended for making a 64-bit SL6.5 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 one partition 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

CAVEAT: you really have to mark the partition bootable using the fdisk "a" command, notice the "*" in the "Boot" column!

b) mke2fs -j /dev/sdX1; tune2fs -c0 -i0 /dev/sdX1; e2label /dev/sdX1 USB
c) mkdir /mnt/tmp
d) mount LABEL=USB /mnt/tmp

3. Copy the data:
a) cd to_the_directory_with_this_readme_file; rsync -av . /mnt/tmp
b0) cd iso; rsync -av SL-65*-Everything-DVD1.iso SL-65*-Everything-DVD2.iso /mnt/tmp
b1) cd to_the_directory_with_the_SL65_iso_images; rsync -av SL-*-Everything-DVD1.iso SL-*-Everything-DVD2.iso /mnt/tmp
c) cd /mnt/tmp; chown -R root.root .

4. Make disk bootable
a) cd /mnt/tmp/extlinux
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.

CAVEAT: during installation, by default, on most systems, the installer will install the GRUB boot loader
on the USB installer flash disk (usually /dev/sda), with result that the newly installed system
is unbootable (no GRUB) and the USB installer is unbootable (extlinux overwritten by GRUB). To avoid this,
on the "bootloader" page, you should enter the "BIOS drive order" subpage and move the real system disk
(usually /dev/sdb) to the first position (hd0). Good luck!


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Instructions for making this distribution:

rsync -av --exclude "Packages" --exclude "repoview" --exclude "repodata" /triumfcs/mirror/scientificlinux.org/6.5/x86_64/os/ .
cp -pv ../SL64-64-USBBOOT/AAA-README-USBBOOT.txt .
xemacs AAA-README-USBBOOT.txt
ln -s /triumfcs/mirror/scientificlinux.org/6.5/x86_64/iso .
cp -rpv ../SL64-64-USBBOOT/extlinux .
xemacs extlinux/extlinux.conf
cp -rpv ../SL64-64-USBBOOT/ks.cfg .
xemacs ks.cfg

//KO 28FEB2014