How to switch to a signed kernel in Ubuntu 18
I have multiple kernels installed in my pc. In which an unsigned version is active now. I want to switch back to an older signed version of the kernel.
When I run the following command: dpkg --list | grep linux-image
This is what its listing:
ic linux-image-4.15.0-29-generic 4.15.0-29.31 Signed kernel image
generic
rc linux-image-4.15.0-39-generic 4.15.0-39.42 Signed kernel
image generic
ii linux-image-4.15.0-42-generic 4.15.0-42.45 Signed
kernel image generic
ii linux-image-4.15.0-43-generic 4.15.0-43.46
Signed kernel image generic
ii linux-image-generic 4.15.0.43.45
Generic Linux kernel imageii
linux-image-unsigned-4.19.5-041905-generic
4.19.5-041905.201812031110 Linux kernel image for version 4.19.5 on 64 bit x86 SMP
The 6th kernel is active now. Which is not signed. And due to that facing lots of issues in updating and installing different packages.
I would like to switch to 4th kernel (Linux-image-4.15.0-43-generic 4.15.0-43.46) signed version.
How to do that? Also is it possible to remove all other kernels?
18.04 kernel
asked Dec 31 '18 at 10:28
Piccaza DePiccaza De
1
add a comment |
I have multiple kernels installed in my pc. In which an unsigned version is active now. I want to switch back to an older signed version of the kernel.
When I run the following command: dpkg --list | grep linux-image
This is what its listing:
ic linux-image-4.15.0-29-generic 4.15.0-29.31 Signed kernel image
generic
rc linux-image-4.15.0-39-generic 4.15.0-39.42 Signed kernel
image generic
ii linux-image-4.15.0-42-generic 4.15.0-42.45 Signed
kernel image generic
ii linux-image-4.15.0-43-generic 4.15.0-43.46
Signed kernel image generic
ii linux-image-generic 4.15.0.43.45
Generic Linux kernel imageii
linux-image-unsigned-4.19.5-041905-generic
4.19.5-041905.201812031110 Linux kernel image for version 4.19.5 on 64 bit x86 SMP
The 6th kernel is active now. Which is not signed. And due to that facing lots of issues in updating and installing different packages.
I would like to switch to 4th kernel (Linux-image-4.15.0-43-generic 4.15.0-43.46) signed version.
How to do that? Also is it possible to remove all other kernels?
18.04 kernel
asked Dec 31 '18 at 10:28
Piccaza DePiccaza De
1
Are you the one that installed that unsigned kernel (4.19)?
– George Udosen
Dec 31 '18 at 11:16
The has already been answered, watch at askubuntu.com/questions/621393/how-to-change-kernel-at-boot - Answer #2
– Psychi
Dec 31 '18 at 13:16
add a comment |
I have multiple kernels installed in my pc. In which an unsigned version is active now. I want to switch back to an older signed version of the kernel.
When I run the following command: dpkg --list | grep linux-image
This is what its listing:
ic linux-image-4.15.0-29-generic 4.15.0-29.31 Signed kernel image
generic
rc linux-image-4.15.0-39-generic 4.15.0-39.42 Signed kernel
image generic
ii linux-image-4.15.0-42-generic 4.15.0-42.45 Signed
kernel image generic
ii linux-image-4.15.0-43-generic 4.15.0-43.46
Signed kernel image generic
ii linux-image-generic 4.15.0.43.45
Generic Linux kernel imageii
linux-image-unsigned-4.19.5-041905-generic
4.19.5-041905.201812031110 Linux kernel image for version 4.19.5 on 64 bit x86 SMP
The 6th kernel is active now. Which is not signed. And due to that facing lots of issues in updating and installing different packages.
I would like to switch to 4th kernel (Linux-image-4.15.0-43-generic 4.15.0-43.46) signed version.
How to do that? Also is it possible to remove all other kernels?
18.04 kernel
asked Dec 31 '18 at 10:28
Piccaza DePiccaza De
1
I have multiple kernels installed in my pc. In which an unsigned version is active now. I want to switch back to an older signed version of the kernel.
When I run the following command: dpkg --list | grep linux-image
This is what its listing:
ic linux-image-4.15.0-29-generic 4.15.0-29.31 Signed kernel image
generic
rc linux-image-4.15.0-39-generic 4.15.0-39.42 Signed kernel
image generic
ii linux-image-4.15.0-42-generic 4.15.0-42.45 Signed
kernel image generic
ii linux-image-4.15.0-43-generic 4.15.0-43.46
Signed kernel image generic
ii linux-image-generic 4.15.0.43.45
Generic Linux kernel imageii
linux-image-unsigned-4.19.5-041905-generic
4.19.5-041905.201812031110 Linux kernel image for version 4.19.5 on 64 bit x86 SMP
The 6th kernel is active now. Which is not signed. And due to that facing lots of issues in updating and installing different packages.
I would like to switch to 4th kernel (Linux-image-4.15.0-43-generic 4.15.0-43.46) signed version.
How to do that? Also is it possible to remove all other kernels?
18.04 kernel
18.04 kernel
asked Dec 31 '18 at 10:28
Piccaza DePiccaza De
1
asked Dec 31 '18 at 10:28
Piccaza DePiccaza De
1
asked Dec 31 '18 at 10:28
Piccaza DePiccaza De
1
asked Dec 31 '18 at 10:28
Piccaza DePiccaza De
1
asked Dec 31 '18 at 10:28
Piccaza DePiccaza De
1
1
Are you the one that installed that unsigned kernel (4.19)?
– George Udosen
Dec 31 '18 at 11:16
The has already been answered, watch at askubuntu.com/questions/621393/how-to-change-kernel-at-boot - Answer #2
– Psychi
Dec 31 '18 at 13:16
add a comment |
Are you the one that installed that unsigned kernel (4.19)?
– George Udosen
Dec 31 '18 at 11:16
The has already been answered, watch at askubuntu.com/questions/621393/how-to-change-kernel-at-boot - Answer #2
– Psychi
Dec 31 '18 at 13:16
Are you the one that installed that unsigned kernel (4.19)?
– George Udosen
Dec 31 '18 at 11:16
Are you the one that installed that unsigned kernel (4.19)?
– George Udosen
Dec 31 '18 at 11:16
The has already been answered, watch at askubuntu.com/questions/621393/how-to-change-kernel-at-boot - Answer #2
– Psychi
Dec 31 '18 at 13:16
The has already been answered, watch at askubuntu.com/questions/621393/how-to-change-kernel-at-boot - Answer #2
– Psychi
Dec 31 '18 at 13:16
add a comment |
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Are you the one that installed that unsigned kernel (4.19)?
– George Udosen
Dec 31 '18 at 11:16
The has already been answered, watch at askubuntu.com/questions/621393/how-to-change-kernel-at-boot - Answer #2
– Psychi
Dec 31 '18 at 13:16