Update problem

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longshanks67
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Update problem

Post by longshanks67 » Sun Aug 11, 2019 4:18 am

Hi,
I tried to upgrade from cinamon 19.1 to 19.2 following Clem's tutorial I did not back up, all has not gone well the next boot displayed a black screen containg a few lines of text the most poiniant being "Kernal panic-not syncing: VFS unable to mount root fs unknown -block (0.0)"
being that I am reletivly new to Linux is there a fix for this or shall I do a new install.

gm10
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Re: Update problem

Post by gm10 » Sun Aug 11, 2019 4:29 am

That wouldn't be point release upgrade related but sounds like a kernel upgrade got interrupted. Reboot, press Esc after the BIOS screen goes away to get to the GRUB boot menu, then go Advanced and select the previous kernel, that should get you booted. If yes, then go to Update Manager > View > Linux kernels and click the button to remove kernels, remove the most recent one. It should then offer you to reinstall it, which you should do. Reboot to confirm it works now.
Tune up your LM 19.x: ppa:gm10/linuxmint-tools

longshanks67
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Re: Update problem

Post by longshanks67 » Mon Aug 12, 2019 6:10 am

Hi thanks for your reply, this is where I am,
I have managed to get back into Mint following your guidance but from the update manager I get to the kernels page where on the left hand side is listed 5.0, 4.18,4.15
on the right hand side the list is 5.0.0.23
5.0.0.20
5.0.0.19
and so on down to .15
at the top of the menu is says "you are currently using Kernel 4.15.0-47.
clicking onto remove old kernels I'm presented with a choice of
4.15.0-20
4.15.0-48
selecting 4.15.0-48 thinking it must be the latest, error message then states
E:dpkg was interrupted you must run dpkg-configure-a to correct the problem
E: cache-> open () failed
please report.
I did all this then I'm told command not found?
Perhaps I am typing in the command lines incorrectly I don't really know as I'm new to linux, so any help you can give will be much appreciated.
kind regards
Brian

gm10
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Re: Update problem

Post by gm10 » Mon Aug 12, 2019 6:19 am

longshanks67 wrote:
Mon Aug 12, 2019 6:10 am
E:dpkg was interrupted you must run dpkg-configure-a to correct the problem
That's fine, that actually confirms my initial diagnosis about an interrupted update. Run

Code: Select all

sudo dpkg --configure -a
followed by

Code: Select all

apt install -f
That will likely already fix it. However, I suggest you then go back to Update Manager, refresh it, and if it's still offering version 4.15.0-48 as the kernel update (in the main window, you don't need to go to the Kernel window for this), then you should Update Manager > Edit > Software Sources and select a different base mirror for yours would be stale (4.15.0-55 is the latest version).
Last edited by karlchen on Thu Aug 15, 2019 8:44 am, edited 1 time in total.
Reason: Commandline has to read "sudo dpkg --configure -a", nothing else.
Tune up your LM 19.x: ppa:gm10/linuxmint-tools

longshanks67
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Re: Update problem

Post by longshanks67 » Thu Aug 15, 2019 8:08 am

Thanks for taking the time to help me, again I followed your instruction's I opened the update manager and refreshed it as you instructed but was presented with" E: dpkg was interrupted you must manually run sudo dpkg-configure-a to correct problem".
E cache-> open() failed
please report.

I am quite new to Mint and have not used Terminal before I assume when you said run you meant within Terminal,
regards
Brian

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Larry78723
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Re: Update problem

Post by Larry78723 » Thu Aug 15, 2019 8:36 am

Brian, here's how to run the command:
  • Click on the Menu button
    In the search box, type terminal
    Click on the Terminal
    Copy the following (Ctrl-C) sudo dpkg --configure -a
    Switch to the terminal and paste (Ctrl-Shift-V)
    Hit Enter
Last edited by karlchen on Thu Aug 15, 2019 8:43 am, edited 1 time in total.
Reason: Commandline has to read "sudo dpkg --configure -a", nothing else.
Image

gm10
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Re: Update problem

Post by gm10 » Thu Aug 15, 2019 9:06 am

longshanks67 wrote:
Thu Aug 15, 2019 8:08 am
I am quite new to Mint and have not used Terminal before I assume when you said run you meant within Terminal
Indeed, sorry. Ctrl+Alt+t to open a terminal window, or click the respective icon on your panel, or find it in the menu as Larry explained just above. Then copy and paste the first command I gave into the terminal window, press Enter. You will be asked to authenticate with your login password. Then run the second command I gave in the same way.
Tune up your LM 19.x: ppa:gm10/linuxmint-tools

longshanks67
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Re: Update problem

Post by longshanks67 » Fri Aug 16, 2019 4:13 am

Thank you both, your advice worked I am now back to where I was with a normal boot more so my understanding of Mint is improving.
regards
Brian

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Larry78723
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Re: Update problem

Post by Larry78723 » Fri Aug 16, 2019 6:27 am

longshanks, please go back to your original post, click on the pencil, and add (Solved) to the subject.
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