Can I use a command at the grub> prompt to boot from usb?












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I installed Ubuntu on my older macbook air. It worked for awhile, and then it started acting all buggy. Now I want to turn the machine into a generic chromebook. I have created the bootable USB stick (Cloudready from Neverware), but I can't get into the bios to change the boot order so it will boot from the usb. Something is wrong and BIOS won't come up for me. I have the error "missing operating system". I can get to a grub> prompt, but I don't know if I can do anything from there?? I am way way out of my league here. Totally clueless. I have read many questions and answers looking for info and/or resources but I have not seen anything to even help me get started. Any help is greatly appreciated.










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    I installed Ubuntu on my older macbook air. It worked for awhile, and then it started acting all buggy. Now I want to turn the machine into a generic chromebook. I have created the bootable USB stick (Cloudready from Neverware), but I can't get into the bios to change the boot order so it will boot from the usb. Something is wrong and BIOS won't come up for me. I have the error "missing operating system". I can get to a grub> prompt, but I don't know if I can do anything from there?? I am way way out of my league here. Totally clueless. I have read many questions and answers looking for info and/or resources but I have not seen anything to even help me get started. Any help is greatly appreciated.










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      I installed Ubuntu on my older macbook air. It worked for awhile, and then it started acting all buggy. Now I want to turn the machine into a generic chromebook. I have created the bootable USB stick (Cloudready from Neverware), but I can't get into the bios to change the boot order so it will boot from the usb. Something is wrong and BIOS won't come up for me. I have the error "missing operating system". I can get to a grub> prompt, but I don't know if I can do anything from there?? I am way way out of my league here. Totally clueless. I have read many questions and answers looking for info and/or resources but I have not seen anything to even help me get started. Any help is greatly appreciated.










      share|improve this question














      I installed Ubuntu on my older macbook air. It worked for awhile, and then it started acting all buggy. Now I want to turn the machine into a generic chromebook. I have created the bootable USB stick (Cloudready from Neverware), but I can't get into the bios to change the boot order so it will boot from the usb. Something is wrong and BIOS won't come up for me. I have the error "missing operating system". I can get to a grub> prompt, but I don't know if I can do anything from there?? I am way way out of my league here. Totally clueless. I have read many questions and answers looking for info and/or resources but I have not seen anything to even help me get started. Any help is greatly appreciated.







      grub2 chromium bios macbook-air






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      asked 2 hours ago









      Angela MalejczukAngela Malejczuk

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