# GNU Radio live USB. GRUB2 broken, how to fix it?

**URL:** <https://www.ruby-forum.com/t/gnu-radio-live-usb-grub2-broken-how-to-fix-it/243260>\
**Category:** GNU Radio\
**Created:** [September 4, 2015, 6:49pm UTC](https://www.ruby-forum.com/t/gnu-radio-live-usb-grub2-broken-how-to-fix-it/243260 "2015-09-04T18:49:10Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Rafa\_F](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/958977/32.png) [@Rafa\_F](https://www.ruby-forum.com/u/Rafa_F)\
**Post date:** [September 4, 2015, 6:49pm UTC](https://www.ruby-forum.com/t/gnu-radio-live-usb-grub2-broken-how-to-fix-it/243260/1 "2015-09-04T18:49:10Z")

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Hi!

I Installed GNU Radio live on a usb stick and I was changing some  
aspects of its configuration.  
I like to delete some entries of the boot menu (is to use with my  
students at class and I don’t one anyone to use “install ubuntu”) and i  
broke grub2. Now the usb stick does not boot.

I know hot to fix a normal grub2 installation, but as it is a grub2 on a  
casper filesystem I don’t know how to fix it. Any help please?

regards

P.D. excuse me for posting the topic twice, but I posted it replying to  
another topic (changing the subject) and as a result the post was “lost”  
inside the other topic

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**Author:** ![fipa](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/f/9e8a1a/32.png) [@fipa](https://www.ruby-forum.com/u/fipa)\
**Post date:** [September 5, 2015, 5:48am UTC](https://www.ruby-forum.com/t/gnu-radio-live-usb-grub2-broken-how-to-fix-it/243260/2 "2015-09-05T05:48:41Z")

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I replied to your earlier email, but your mail server rejected the  
email.  
You can check the list archive for my response.

On Fri, Sep 4, 2015 at 9:47 AM, Fernando P. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)