## page was renamed from Installation/FromUSBStick/tmp/alt ||<>|| [[../|Return to the main FromUSBStick page]] ----- = Alternative methods = == 'Do it yourself' == When the boot structure is modified in Ubuntu or the booting software, there can be problems until the extracting tools are modified to manage the modification. It is worthwhile to find a method that is as simple as possible and to learn how to use it in order to manage the extraction also when the boot structure is modified. * For an UEFI only boot flash drive you need no installer * Make the drive boot both in UEFI mode and BIOS mode See this link: '''[[https://help.ubuntu.com/community/Installation/iso2usb#Do_it_yourself|Installation/iso2usb#Do_it_yourself]]''' == Portable installed system booting from UEFI and BIOS == The following web page describes how to install a portable Ubuntu system, that boots in UEFI as well as BIOS mode. It can be installed into a USB pendrive. An original system was not stable enough to survive certain updates. But a new and simplified system seems stable, [[https://help.ubuntu.com/community/Installation/UEFI-and-BIOS|Portable installed system booting from UEFI & BIOS]] == Multiboot pendrives == These links describe a multiboot pendrive based on the '''grub-n-iso''' method. * [[http://ubuntuforums.org/showthread.php?t=2259682&p=13302264#post13302264|Multiboot pendrive system for all PC (Intel/AMD) computers]] * [[http://ubuntuforums.org/showthread.php?t=2259682&p=13302278#post13302278|Build your own single boot or multiboot pendrive for all PC (Intel/AMD) computers]] * [[http://ubuntuforums.org/showthread.php?t=2276498|How to Create a EFI/UEFI GRUB2 Multiboot USB drive to boot ISO images]] See also the following links * [[http://multibootusb.org/|MultiBootUSB by Sundar]] * [[http://www.pendrivelinux.com/multiboot-create-a-multiboot-usb-from-linux|Pendrivelinux about Multisystem]] * [[http://www.pendrivelinux.com/install-grub2-on-usb-from-ubuntu-linux|Pendrivelinux about grub2]] * [[http://www.pendrivelinux.com/yumi-multiboot-usb-creator|YUMI – Multiboot USB Creator]] == Booting ISO files on internal drive (actually on any drive) == There is a good wiki page about [[https://help.ubuntu.com/community/Grub2/ISOBoot|booting with grub2]] and its sub-page [[https://help.ubuntu.com/community/Grub2/ISOBoot/Examples|with examples]] == Booting USB drives with grub2 and iso files 'grub-n-iso' == The [[https://help.ubuntu.com/community/grub-n-iso|'grub-n-iso']] method uses grub2 to boot from an iso file, so once you have such a USB pendrive, you can boot most Intel and AMD computers that can run a 32-bit system (except very old non-PAE systems, systems with too low RAM, and systems with non-compatible hardware). The 'grub-n-iso' method can be used to create multi-boot USB pendrives by selecting iso file to boot from in the grub menu. There is space in 'grub-n-iso-n-swap' for a second iso file. You can also start from this [[http://www.pendrivelinux.com/install-grub2-on-usb-from-ubuntu-linux/|link to Pendrivelinux]] and modify the USB drive to suit what you need: size, number of iso files ... The [[https://help.ubuntu.com/community/grub-n-iso|Ubuntu wiki page 'grub-n-iso']] refers to [[https://help.ubuntu.com/community/Lubuntu-fake-PAE|Lubuntu-fake-PAE]], because it is a method to boot the new pae kernel also with Celeron M and Pentium M CPUs without the PAE flag, but with PAE capability. However, the 'grub-n-iso' and 'grub-n-iso-swap' USB boot drives use the standard Lubuntu desktop iso file without any fake-PAE installed, and it can boot almost all computers, that can run 32-bit systems, but it cannot be used for UEFI systems. === 'grub-n-iso' for all PCs === 64-bit versions work only in 64-bit computers. 32-bit versions work in 32-bit and 64-bit computer with BIOS, and now also with UEFI. It is possible to create 'grub-n-iso' pendrives that boot most PCs with Intel and AMD processors according to the following links, [[http://ubuntuforums.org/showthread.php?t=2276498|How to Create a EFI/UEFI GRUB2 Multiboot USB drive to boot ISO images]] [[http://ubuntuforums.org/showthread.php?t=2259682|One pendrive for all PC (Intel/AMD) computers]] But old style 'grub-n-iso' does not work in UEFI mode. If you want to boot in UEFI mode and '''install''' your Ubuntu flavour alongside Windows, you can use for example the '''ubuntu-16.04.1-desktop-amd64.iso''' directly. There is a good wiki page about [[https://help.ubuntu.com/community/UEFI|booting with UEFI]] ----- [[../|Return to the main FromUSBStick page]]