Results 1 to 8 of 8

Thread: How to boot into an older kernel on Mac iBook G4

  1. #1
    Join Date
    Apr 2009
    Location
    Spain
    Beans
    340
    Distro
    Lubuntu 14.04 Trusty Tahr

    How to boot into an older kernel on Mac iBook G4

    Anyone know how to boot into an older kernel on a Mac iBook G4?


    I know I have 2 kernels installed, but there is no menu to choose boot options from as I only have one OS installed (Ubuntu).


    Thank you.

  2. #2
    Join Date
    Feb 2008
    Location
    Planet earth, for now.
    Beans
    Hidden!
    Distro
    Xubuntu

    Re: How to boot into an older kernel on Mac iBook G4

    You should still be able to get to the menu list at boot. Try hitting escape or shift at boot or just after.

  3. #3
    Join Date
    Apr 2009
    Location
    Spain
    Beans
    340
    Distro
    Lubuntu 14.04 Trusty Tahr

    Re: How to boot into an older kernel on Mac iBook G4

    Thanks for your reply. Unfortunately neither esc or shift produced the menu. I tried with each, pressing them intermittently from when I powered on until the log in screen appeared. The only effect was when pressing esc I got a "quiet boot" (no splash).

  4. #4
    Join Date
    Feb 2008
    Location
    Planet earth, for now.
    Beans
    Hidden!
    Distro
    Xubuntu

    Re: How to boot into an older kernel on Mac iBook G4

    How old are the kernels? Which release, if you remember?

    Depending, boot to Ubuntu, open a terminal and:

    Code:
    sudo nano /etc/default/grub
    Find these lines and make them look like this:

    Code:
    GRUB_DEFAULT=0
    GRUB_HIDDEN_TIMEOUT=0
    GRUB_HIDDEN_TIMEOUT_QUIET=true
    GRUB_TIMEOUT=10
    Reboot. Anything?

  5. #5
    Join Date
    Apr 2009
    Location
    Spain
    Beans
    340
    Distro
    Lubuntu 14.04 Trusty Tahr

    Re: How to boot into an older kernel on Mac iBook G4

    Kernel versions 3.11.0-3 and 3.11.0-4 for powerpc.

    There is no /etc/default/grub file.

    I guess I should install grub, right? How?

    Thanks.

  6. #6
    Join Date
    Nov 2013
    Beans
    Hidden!

    Re: How to boot into an older kernel on Mac iBook G4

    Hello,
    Maybe you have a old version of grub.
    Try to edit file menu.lst :
    sudo gedit /boot/grub/menu.lst

    If it is ok you modifie :

    ## timeout sec
    # Set a timeout, in SEC seconds, before automatically booting the default entry
    # (normally the first entry defined).
    timeout X



    ## hiddenmenu
    # Hides the menu by default (press ESC to see the menu)
    hiddenmenu
    By :
    ## timeout sec
    # Set a timeout, in SEC seconds, before automatically booting the default entry
    # (normally the first entry defined).
    timeout 10


    ## hiddenmenu
    # Hides the menu by default (press ESC to see the menu)
    ## hiddenmenu
    You save and do a :
    sudo update-grub

    Bye

  7. #7
    Join Date
    Feb 2008
    Location
    Planet earth, for now.
    Beans
    Hidden!
    Distro
    Xubuntu

    Re: How to boot into an older kernel on Mac iBook G4

    With a kernel that recent don't think old grub, but definitely worth a try, just in case.

    Do you also have a Mac OS on this machine? That could be using Boot Camp to boot and not grub, but you should still be able to find the /grub config file in Ubuntu in one of the two places given so far.

  8. #8
    Join Date
    Apr 2009
    Location
    Spain
    Beans
    340
    Distro
    Lubuntu 14.04 Trusty Tahr

    Re: How to boot into an older kernel on Mac iBook G4

    Hmm...

    No /boot/grub directory either...

    No Mac OS or any other OS installed, only Ubuntu.

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •