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Although I have recently begun using Centos I now want to create a Ubuntu USB stick to use when traveling, doing so I have run into problems.
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The stick is a 64 Gb stick to allow for lots of persistent data on it, I created a couple of partitions but cannot get grub to work (I intentionally choose to use grub, not grub2, to gain familiarity with the older version).
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I followed the instructions at https://rudd-o.com/linux-and-free-software/a-better-way-to-create-a-customized-ubuntu-live-usb-drive since it seemed to be low-level for me to learn the basics. I made a couple of changes: (1) I changed the disk format from FAT32 to ext2 for the boot partition to allow for a larger boot partition: (2) the initrd.gz file now seems to be called initrd.lz and I made that change.
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At the end, however, I cannot get the USB stick to boot from the two computers I tried it on, none of which I believe uses UEFI booting. I believe I need to use grub2, not grub, if I want the stick to boot on a computer using UEFI?
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Is it possible for someone knowledgeable to suggest what might be wrong? My basic assumption is that grub can be used to boot Ubuntu 14.04.1. I also want to do this at the low level, not use a tool to create the USB stick.
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Second, if there is a low-level description how to create such a stick this using grub2 for UEFI booting, please point me to it since I may eventually have to do this to allow the stick to be truly usable.
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Thank you.
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