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Thread: updated - now won't boot

  1. #1
    Join Date
    Mar 2010
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    9

    updated - now won't boot

    I can't boot now after an update. I'm getting this:

    error: cannot read the linux header
    error: you need to load the kernel first

    Press any key to continue...
    After than it says

    Failed to boot both default and fallback entries
    then it goes to grub and I pick 'previous linux versions' and I can boot into -14

    It's a P-III, 1133Ghz, 512RAM, Dell Laptop
    I have:

    3.0.0-14
    3.0.0-13
    3.0.0-12

    It's been running Lubuntu fine for about six months now. Last night I did the updates and it won't boot.

    I scanned the RAM and the hard drive and they are fine. Then I tried the 'previous version" which is 3.0.0-14 and it works fine. I went into
    /etc/default/grub and changed the video to 640x480 and did 'sudo update-grub' and that worked so I know that's working.

    So, it seems to me that either:
    3.0.0-15 doesn't run on a P-III, or

    3.0.0-15 got corrupt somehow
    How can I uninstall -15 and re-install it, ... or ... where would I need to look to see if -15 stopped supporting P-III's , ... or, can I back out the update somehow?

    thanks

  2. #2
    Join Date
    Apr 2009
    Location
    UK Lake District
    Beans
    2,861
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: updated - now won't boot

    If you can boot 14
    You should be able mark 15 for re-installation in synaptic
    You should install synaptic if you haven't already!
    Ubuntu Member Always something different. Promoting Ubuntu and System 76 at TUXPC

  3. #3
    Join Date
    Mar 2010
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    9

    Re: updated - now won't boot

    what do I search for to find it?

    headers
    header
    kernel
    3.0.0-15
    linux

    ...

    I'm not really sure what it's called and what all the parts are, though I guess the package manager should get all the parts if I select the main cahuna.

    By "Synaptic" you mean the "Synaptic Package Manager"? ... Yeah, but that came OOB IIRC. I don't think I installed it.

  4. #4
    Join Date
    Mar 2010
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    9

    Re: updated - now won't boot

    I searched for "3.0.0-15" and found three that are checked. Are these three enough?

    linux-headers-3.0.0-15
    linux-headers-3.0.0-15-generic
    linux-image-3.0.0-15-generic

  5. #5
    Join Date
    Apr 2009
    Location
    UK Lake District
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    2,861
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: updated - now won't boot

    I still have 14
    Let me check the updates
    Ubuntu Member Always something different. Promoting Ubuntu and System 76 at TUXPC

  6. #6
    Join Date
    Apr 2009
    Location
    UK Lake District
    Beans
    2,861
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: updated - now won't boot

    Are you working outside the defaults?
    How were you updating?
    Ubuntu Member Always something different. Promoting Ubuntu and System 76 at TUXPC

  7. #7
    Join Date
    Mar 2010
    Beans
    9

    Re: updated - now won't boot

    Nothing special. I'm pretty sure my home folder is encrypted if that matters. The update was the simple update manager pop-up that happens every week or so.

    So, with Synaptic, I searched for 'linux-image' and removed (not completely) the entry.
    And did the same with '3.0.0-15'

    I rebooted and it worked fine (in 14).

    I re-installed the 'linux-image' for 15

    and rebooted -- no workie, some error about collectd. No grub menu. Dead in the water. (Is there some key like Windows F8 for 'safe boot'?) So I booted with live CD, edited

    /boot/grub/grub.cfg
    and changed the three '-15's in the top entry to '-14' and I could boot in 14 again (yay)

    I went back in synaptic and searched for 3.0.0-15 to get the headers again, and couldn't remember if it was <blank> or 'generic' I needed, so I installed them both.

    I checked

    /boot/grub/grub.cfg
    and I was still set at 14 (surprizingly), so I ran 'update-grub' and checked again and it was correctly at 15

    rebooted, "checking disk for errors .............................................." then booted okay
    system profiler says OS is -15. (yay)

    rebooted again, no disk check, but I notice error about Plymouth, but it still boots okay.

    could not write bytes: Broken pipe
    Already started
    Starting atop system monitor: mountall: Plymouth command failed
    moutall: Disconnected from Plymouth
    atop.
    checking for running unattended-upgrades
    so bottom line: my PC is up and running again with 15, but I'm slightly concerned about this:

    • Broken pipe
    • Plymouth
    • atop

    Any thoughts on what's wrong here? Does 15 have a bug? Could it be my hardware? Or did I forget something in the update/remove/reinstall?

    And is there some Linux safe boot key, like Windows F8?

  8. #8
    Join Date
    Mar 2007
    Beans
    67

    Re: updated - now won't boot

    I had this same problem on my Dell D600 Latitude laptop. Both on the 17 to 18 update and on the latest which came up this afternoon 07/04/12 mid afternoon BST.

    On both occasions I had to re load the generic-pae version this time with 3.0.0-19 twice! I gather the -pae version is for 32 bit machines like mine. But it seems to need some of the other bits as well, since it would not work with only the -pae header and kernel installed.

    I am using Oneric 10.11 and Gnome 3.2.1 since I cannot use Unity with the dell provided display. (It is ok on my Samsung N110 netbook though) I believe that Pangolin has been written for 64 bit machines only since I cannot get any version to work.

    I would have thought a few warnings on the updates would be in order for us poor people with older machines.

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