Make a USB Boot CD for Kubuntu ▷ Pendrive Linux

How to create a USB Boot CD for Kubuntu. This can be used to boot a Kubuntu Live USB flash drive from a computer with a BIOS that does not natively support booting from USB. The USB boot CD created using this tutorial launches the initrd (Initial Ram Filesystem) along with the necessary USB drivers from the CD, and then tries to boot the squash filesystem from the USB drive.

Kubuntu, a derivative of Ubuntu that uses a KDE desktop environment instead of Gnome is a product of Canonical Ltd.

Essentials to Create a USB Boot CD for Kubuntu

Test PC with a BIOS that does not support booting from USB
Kubuntu Live CD
USB flash drive with Kubuntu preinstalled
Working CD Burner

How to Make a USB Boot CD for Kubuntu

Note: I prefer to perform the following steps by booting from a prebuilt Kubuntu Live Bootable USB on a machine that does support booting from USB. This allows us to free up the CD Burner and use it to burn the final ISO.

Insert your Kubuntu Live USB or Live CD and restart your computer, booting from the device
Open a Terminal (Start > Applications > System > Terminal)
Type sudo apt-get install grub
Type mkdir -p ubcdk/boot/grub
Type cp /usr/lib/grub/i386-pc/stage2_eltorito ubcdk/boot/grub

Type nano ubcdk/boot/grub/menu.lst
Copy the following information to the menu.lst file. Press Ctrl+X, press Y, and then press Enter to save the file:

title Start Kubuntu from USB DISK
root (cd)
kernel /boot/vmlinuz file=/cdrom/preseed/kubuntu.seed boot=casper noprompt cdrom-detect/try-usb=true persistent
initrd /boot/initrd.lz
boot

Type cp /cdrom/casper/vmlinuz ~/ubcdk/boot
Type sudo nano /etc/initramfs-tools/modules
Add the following lines to the end of your modules file. Press Ctrl+X, press Y, and then press Enter to save the file:
```
usbcore
usb-storage
uhci_hcd
ohci_hcd
ehci_hcd
sd_mod
scsi_mod
```
Type sudo nano /etc/initramfs-tools/initramfs.conf
Add the following line to the bottom of the file. Press Ctrl+X, press Y, and then press Enter to save the file:WAIT=8
Type sudo mkinitramfs -o ubcdk/boot/initrd.lz
Type mkisofs -R -b boot/grub/stage2_eltorito -no-emul-boot -boot-load-size 4 -boot-info-table -o usbcdk.iso ubcdk
Type k3b usbcdk.iso to burn the ISO to a CD