macbook - changes lost after a reboot

Asked by hans mayer on 2016-11-19

Dear All,

I downloaded the GNUradio ISO image from http://gnuradio.org/redmine/projects/gnuradio/wiki/GNURadioLiveDVD. This ISO image is based on Ubuntu with a preinstalled application GNUradio. I installed it on a 32 GB USB stick with UNetbootin. This ISO image is based on Ubuntu with a preinstalled application GNUradio. I allocated 2048 MB in the field "space used to preserve files across reboots" for the installation process.

If I use this USB stick in a Dell PC everything is fine. It boots and changes I made are available even after a reboot.

If I use this stick on my MacBook Pro it boots fine. Everything comes up as on the Dell PC. But changes which were done previously are not visible. Also changes i do are lost after a reboot.

Are there any hints and tricks with Apple's MacBooks ?
Which additional information I should provide that you can help me ?

Kind regards
Hans

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Question information

Language:
English Edit question
Status:
Solved
For:
UNetbootin Edit question
Assignee:
No assignee Edit question
Solved by:
Geza Kovacs
Solved:
2016-11-20
Last query:
2016-11-20
Last reply:
2016-11-19
Best Geza Kovacs (gezakovacs) said : #1

A workaround is to edit boot/grub/grub.cfg (on the USB stick), find each line that starts with "linux /casper/vmlinuz.efi", and add the word persistent. so edit from:

menuentry "Start Ubuntu" {
          set gfxpayload=keep
          linux /casper/vmlinuz.efi file=/cdrom/preseed/ubuntu.seed boot=casper maybe-ubiquity quiet splash --
          initrd /casper/initrd.lz
}

to the following:

menuentry "Start Ubuntu" {
          set gfxpayload=keep
          linux /casper/vmlinuz.efi persistent file=/cdrom/preseed/ubuntu.seed boot=casper maybe-ubiquity quiet splash --
          initrd /casper/initrd.lz
}

You'll find more info at http://askubuntu.com/questions/577833/how-do-i-create-a-live-usb-installer-for-uefi-efi-systems-that-reads-and-saves-p?noredirect=1&lq=1

hans mayer (hans.mayer) said : #2

He,

that's great. This solved my problem.
Many thanks.

Have a nice day.

// Hans

hans mayer (hans.mayer) said : #3

Thanks Geza Kovacs, that solved my question.