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I have used UNetbootin to create an installable / live bootable flash drive from Ubuntu 12.04. However that didn't preserve the normal Ubuntu boot menu which allows to me to enter advanced options. It has a custom menu that I can pick from predefined choices like "Install Ubuntu" and "Try Ubuntu without installing". What I would like is to be able to boot from the USB flash drive, but then be able to remove it from the computer once the desktop has loaded. The laptop I would like to use this on does not have an optical (CD/DVD) drive - nor do I have a USB version available.

What do I need to modify on the flash drive to add an option to "Try Ubuntu (RAM)" that passes the TORAM=yes parameter to the initrd options? Are their other things I need to touch/change as well? Is it even possible? I am not restricted to version 12.04 if that makes a difference.

Bonus: I would guess the answer would also allow for other options like acpi=off as well, but if it is different I would appreciate having that answer too.

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Perhaps try a network boot? Just an idea. –  saleemrashid1 Nov 11 '12 at 21:54

1 Answer 1

To add a boot parameter press F6 or to type it manually Down then Up

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You could add the boot params to syslinux/menu.cfg –  saleemrashid1 Sep 29 '12 at 17:48
    
F6 doesn't work in the UNetbootin menu. I can press tab to edit the command line but adding TORAM=yes still doesn't allow me to remove the USB flash drive after booting. The same is true of adding it to the syslinux.cfg file on the root of the flash drive. –  Goyuix Sep 29 '12 at 18:03
    
wiki.ubuntu.com/BootToRAM (You may want to format it first) –  saleemrashid1 Sep 30 '12 at 7:49

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