Instructions for making USB-Bootable installation disk for 64bit SL6.4
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0. These instructions are intended for making a 64-bit SL6.4 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

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
b) cd to_the_directory_with_the_SL63_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.

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Instructions for making this distribution:

rsync -av --exclude "Packages" --exclude "repoview" --exclude "repodata" /triumfcs/mirror/scientificlinux.org/6.4/x86_64/os/ .
cp -pv ../SL63-64-USBBOOT/AAA-README-USBBOOT.txt .
xemacs AAA-README-USBBOOT.txt
ln -s /triumfcs/mirror/scientificlinux.org/6.4/x86_64/iso .
cp -rpv ../SL63-64-USBBOOT/extlinux .
xemacs extlinux/extlinux.conf
cp -rpv ../SL63-64-USBBOOT/ks.cfg .
xemacs ks.cfg

//KO 12JUN2013