How to rollback to an older kernel on 16.04/purge kernel automatically installs new one?
unattended-upgrade recently automatically upgrade my kernel to 4.4.0-143 but it does not work with Nvidia graphic cards so I decided to roll back to previous version.
I am able to boot to an older kernel(4.4.0-141), and confirmed I'm booting my computer with that:
4.4.0-141-generic
but when I tried to apt purge linux-image-4.4.0-143-generic, apt prompts me to confirm:
The following NEW packages will be installed:
linux-image-unsigned-4.4.0-143-generic
So why is uninstalling a signed kernel requires to install an unsigned version?
And how can I safely remove the newer(143) kernel? Thanks in advance!
full output of apt purge:
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
amd64-microcode intel-microcode iucode-tool linux-headers-4.4.0-137 linux-headers-4.4.0-137-generic linux-headers-4.4.0-138 linux-headers-4.4.0-138-generic linux-headers-4.4.0-139 linux-headers-4.4.0-139-generic linux-headers-4.4.0-141 linux-headers-4.4.0-141-generic
linux-image-4.4.0-137-generic linux-image-4.4.0-138-generic linux-image-4.4.0-139-generic linux-image-4.4.0-141-generic linux-image-extra-4.4.0-137-generic linux-image-extra-4.4.0-138-generic linux-image-extra-4.4.0-139-generic linux-image-extra-4.4.0-141-generic
linux-signed-image-4.4.0-137-generic linux-signed-image-4.4.0-138-generic linux-signed-image-4.4.0-139-generic linux-signed-image-4.4.0-141-generic thermald
Use 'sudo apt autoremove' to remove them.
The following additional packages will be installed:
linux-image-unsigned-4.4.0-143-generic
Suggested packages:
fdutils linux-doc-4.4.0 | linux-source-4.4.0 linux-tools
The following packages will be REMOVED:
linux-generic* linux-image-4.4.0-143-generic* linux-image-generic* linux-signed-generic*
The following NEW packages will be installed:
linux-image-unsigned-4.4.0-143-generic
0 upgraded, 1 newly installed, 4 to remove and 140 not upgraded.
Need to get 7,049 kB of archives.
After this operation, 386 kB of additional disk space will be used.
Do you want to continue? [Y/n] n
16.04 apt kernel downgrade purge
asked Mar 18 at 1:55
imkzhimkzh
62
add a comment |
unattended-upgrade recently automatically upgrade my kernel to 4.4.0-143 but it does not work with Nvidia graphic cards so I decided to roll back to previous version.
I am able to boot to an older kernel(4.4.0-141), and confirmed I'm booting my computer with that:
4.4.0-141-generic
but when I tried to apt purge linux-image-4.4.0-143-generic, apt prompts me to confirm:
The following NEW packages will be installed:
linux-image-unsigned-4.4.0-143-generic
So why is uninstalling a signed kernel requires to install an unsigned version?
And how can I safely remove the newer(143) kernel? Thanks in advance!
full output of apt purge:
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
amd64-microcode intel-microcode iucode-tool linux-headers-4.4.0-137 linux-headers-4.4.0-137-generic linux-headers-4.4.0-138 linux-headers-4.4.0-138-generic linux-headers-4.4.0-139 linux-headers-4.4.0-139-generic linux-headers-4.4.0-141 linux-headers-4.4.0-141-generic
linux-image-4.4.0-137-generic linux-image-4.4.0-138-generic linux-image-4.4.0-139-generic linux-image-4.4.0-141-generic linux-image-extra-4.4.0-137-generic linux-image-extra-4.4.0-138-generic linux-image-extra-4.4.0-139-generic linux-image-extra-4.4.0-141-generic
linux-signed-image-4.4.0-137-generic linux-signed-image-4.4.0-138-generic linux-signed-image-4.4.0-139-generic linux-signed-image-4.4.0-141-generic thermald
Use 'sudo apt autoremove' to remove them.
The following additional packages will be installed:
linux-image-unsigned-4.4.0-143-generic
Suggested packages:
fdutils linux-doc-4.4.0 | linux-source-4.4.0 linux-tools
The following packages will be REMOVED:
linux-generic* linux-image-4.4.0-143-generic* linux-image-generic* linux-signed-generic*
The following NEW packages will be installed:
linux-image-unsigned-4.4.0-143-generic
0 upgraded, 1 newly installed, 4 to remove and 140 not upgraded.
Need to get 7,049 kB of archives.
After this operation, 386 kB of additional disk space will be used.
Do you want to continue? [Y/n] n
16.04 apt kernel downgrade purge
asked Mar 18 at 1:55
imkzhimkzh
62
Looks like it wants to remove all kernels, and installlinux-image-unsigned-4.4.0-143-generic. Not sure why though.
– mikewhatever
Mar 18 at 2:20
Have you tried the latest Nvidia driver for your card? Nvidia may have fixed the (upstream) problem which finally hit the 4.4.0-143 kernel release.
– ubfan1
Mar 18 at 2:43
@ubfan1 i’ve not tried that yet, but according to some threads on nvidia forum, there are still problems with the latest kernel. and upgrading to a new driver may corrupt my programming environment, thank you.
– imkzh
Mar 18 at 2:51
add a comment |
unattended-upgrade recently automatically upgrade my kernel to 4.4.0-143 but it does not work with Nvidia graphic cards so I decided to roll back to previous version.
I am able to boot to an older kernel(4.4.0-141), and confirmed I'm booting my computer with that:
4.4.0-141-generic
but when I tried to apt purge linux-image-4.4.0-143-generic, apt prompts me to confirm:
The following NEW packages will be installed:
linux-image-unsigned-4.4.0-143-generic
So why is uninstalling a signed kernel requires to install an unsigned version?
And how can I safely remove the newer(143) kernel? Thanks in advance!
full output of apt purge:
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
amd64-microcode intel-microcode iucode-tool linux-headers-4.4.0-137 linux-headers-4.4.0-137-generic linux-headers-4.4.0-138 linux-headers-4.4.0-138-generic linux-headers-4.4.0-139 linux-headers-4.4.0-139-generic linux-headers-4.4.0-141 linux-headers-4.4.0-141-generic
linux-image-4.4.0-137-generic linux-image-4.4.0-138-generic linux-image-4.4.0-139-generic linux-image-4.4.0-141-generic linux-image-extra-4.4.0-137-generic linux-image-extra-4.4.0-138-generic linux-image-extra-4.4.0-139-generic linux-image-extra-4.4.0-141-generic
linux-signed-image-4.4.0-137-generic linux-signed-image-4.4.0-138-generic linux-signed-image-4.4.0-139-generic linux-signed-image-4.4.0-141-generic thermald
Use 'sudo apt autoremove' to remove them.
The following additional packages will be installed:
linux-image-unsigned-4.4.0-143-generic
Suggested packages:
fdutils linux-doc-4.4.0 | linux-source-4.4.0 linux-tools
The following packages will be REMOVED:
linux-generic* linux-image-4.4.0-143-generic* linux-image-generic* linux-signed-generic*
The following NEW packages will be installed:
linux-image-unsigned-4.4.0-143-generic
0 upgraded, 1 newly installed, 4 to remove and 140 not upgraded.
Need to get 7,049 kB of archives.
After this operation, 386 kB of additional disk space will be used.
Do you want to continue? [Y/n] n
16.04 apt kernel downgrade purge
asked Mar 18 at 1:55
imkzhimkzh
62
unattended-upgrade recently automatically upgrade my kernel to 4.4.0-143 but it does not work with Nvidia graphic cards so I decided to roll back to previous version.
I am able to boot to an older kernel(4.4.0-141), and confirmed I'm booting my computer with that:
4.4.0-141-generic
but when I tried to apt purge linux-image-4.4.0-143-generic, apt prompts me to confirm:
The following NEW packages will be installed:
linux-image-unsigned-4.4.0-143-generic
So why is uninstalling a signed kernel requires to install an unsigned version?
And how can I safely remove the newer(143) kernel? Thanks in advance!
full output of apt purge:
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
amd64-microcode intel-microcode iucode-tool linux-headers-4.4.0-137 linux-headers-4.4.0-137-generic linux-headers-4.4.0-138 linux-headers-4.4.0-138-generic linux-headers-4.4.0-139 linux-headers-4.4.0-139-generic linux-headers-4.4.0-141 linux-headers-4.4.0-141-generic
linux-image-4.4.0-137-generic linux-image-4.4.0-138-generic linux-image-4.4.0-139-generic linux-image-4.4.0-141-generic linux-image-extra-4.4.0-137-generic linux-image-extra-4.4.0-138-generic linux-image-extra-4.4.0-139-generic linux-image-extra-4.4.0-141-generic
linux-signed-image-4.4.0-137-generic linux-signed-image-4.4.0-138-generic linux-signed-image-4.4.0-139-generic linux-signed-image-4.4.0-141-generic thermald
Use 'sudo apt autoremove' to remove them.
The following additional packages will be installed:
linux-image-unsigned-4.4.0-143-generic
Suggested packages:
fdutils linux-doc-4.4.0 | linux-source-4.4.0 linux-tools
The following packages will be REMOVED:
linux-generic* linux-image-4.4.0-143-generic* linux-image-generic* linux-signed-generic*
The following NEW packages will be installed:
linux-image-unsigned-4.4.0-143-generic
0 upgraded, 1 newly installed, 4 to remove and 140 not upgraded.
Need to get 7,049 kB of archives.
After this operation, 386 kB of additional disk space will be used.
Do you want to continue? [Y/n] n
16.04 apt kernel downgrade purge
16.04 apt kernel downgrade purge
asked Mar 18 at 1:55
imkzhimkzh
62
asked Mar 18 at 1:55
imkzhimkzh
62
edited Mar 19 at 9:26
imkzh
asked Mar 18 at 1:55
imkzhimkzh
62
asked Mar 18 at 1:55
imkzhimkzh
62
asked Mar 18 at 1:55
imkzhimkzh
62
62
Looks like it wants to remove all kernels, and installlinux-image-unsigned-4.4.0-143-generic. Not sure why though.
– mikewhatever
Mar 18 at 2:20
Have you tried the latest Nvidia driver for your card? Nvidia may have fixed the (upstream) problem which finally hit the 4.4.0-143 kernel release.
– ubfan1
Mar 18 at 2:43
@ubfan1 i’ve not tried that yet, but according to some threads on nvidia forum, there are still problems with the latest kernel. and upgrading to a new driver may corrupt my programming environment, thank you.
– imkzh
Mar 18 at 2:51
add a comment |
Looks like it wants to remove all kernels, and installlinux-image-unsigned-4.4.0-143-generic. Not sure why though.
– mikewhatever
Mar 18 at 2:20
Have you tried the latest Nvidia driver for your card? Nvidia may have fixed the (upstream) problem which finally hit the 4.4.0-143 kernel release.
– ubfan1
Mar 18 at 2:43
@ubfan1 i’ve not tried that yet, but according to some threads on nvidia forum, there are still problems with the latest kernel. and upgrading to a new driver may corrupt my programming environment, thank you.
– imkzh
Mar 18 at 2:51
Looks like it wants to remove all kernels, and install
linux-image-unsigned-4.4.0-143-generic. Not sure why though.– mikewhatever
Mar 18 at 2:20
Looks like it wants to remove all kernels, and install
linux-image-unsigned-4.4.0-143-generic. Not sure why though.– mikewhatever
Mar 18 at 2:20
Have you tried the latest Nvidia driver for your card? Nvidia may have fixed the (upstream) problem which finally hit the 4.4.0-143 kernel release.
– ubfan1
Mar 18 at 2:43
Have you tried the latest Nvidia driver for your card? Nvidia may have fixed the (upstream) problem which finally hit the 4.4.0-143 kernel release.
– ubfan1
Mar 18 at 2:43
@ubfan1 i’ve not tried that yet, but according to some threads on nvidia forum, there are still problems with the latest kernel. and upgrading to a new driver may corrupt my programming environment, thank you.
– imkzh
Mar 18 at 2:51
@ubfan1 i’ve not tried that yet, but according to some threads on nvidia forum, there are still problems with the latest kernel. and upgrading to a new driver may corrupt my programming environment, thank you.
– imkzh
Mar 18 at 2:51
add a comment |
1 Answer
1
active
oldest
votes
I’ve found the answer myself with the hints from deleted answer by @mikewhatever. (see him in comments, https://askubuntu.com/users/20054/mikewhatever)
The reason is some package is depending on either linux-image-4.4.0-143-generic or linux-image-unsigned-4.4.0-143-generic. So simply purging the signed kernel will trigger an automatic installation of the unsigned one to satisfy the dependency.
So I checked the reverse dependency of linux-image-4.4.0-143-generic
# apt-cache rdepends linux-image-4.4.0-143-generic
linux-image-4.4.0-143-generic
Reverse Depends:
|linux-image-generic
|linux-modules-extra-4.4.0-143-generic
|linux-image-virtual
linux-image-unsigned-4.4.0-143-generic
And purged all of those reported. Then I am able to purge linux-image-4.4.0-143-generic painlessly.
see: apt-get -- remove triggers a package install?
edited Mar 18 at 18:55
johan
112
answered Mar 18 at 3:08
imkzhimkzh
62
Also see askubuntu.com/a/1119643/66509 . Thelinux-image-genericshould be removed if you do not want to get latest kernel.
– N0rbert
Mar 18 at 7:36
add a comment |
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1 Answer
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1 Answer
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I’ve found the answer myself with the hints from deleted answer by @mikewhatever. (see him in comments, https://askubuntu.com/users/20054/mikewhatever)
The reason is some package is depending on either linux-image-4.4.0-143-generic or linux-image-unsigned-4.4.0-143-generic. So simply purging the signed kernel will trigger an automatic installation of the unsigned one to satisfy the dependency.
So I checked the reverse dependency of linux-image-4.4.0-143-generic
# apt-cache rdepends linux-image-4.4.0-143-generic
linux-image-4.4.0-143-generic
Reverse Depends:
|linux-image-generic
|linux-modules-extra-4.4.0-143-generic
|linux-image-virtual
linux-image-unsigned-4.4.0-143-generic
And purged all of those reported. Then I am able to purge linux-image-4.4.0-143-generic painlessly.
see: apt-get -- remove triggers a package install?
edited Mar 18 at 18:55
johan
112
answered Mar 18 at 3:08
imkzhimkzh
62
Also see askubuntu.com/a/1119643/66509 . Thelinux-image-genericshould be removed if you do not want to get latest kernel.
– N0rbert
Mar 18 at 7:36
add a comment |
I’ve found the answer myself with the hints from deleted answer by @mikewhatever. (see him in comments, https://askubuntu.com/users/20054/mikewhatever)
The reason is some package is depending on either linux-image-4.4.0-143-generic or linux-image-unsigned-4.4.0-143-generic. So simply purging the signed kernel will trigger an automatic installation of the unsigned one to satisfy the dependency.
So I checked the reverse dependency of linux-image-4.4.0-143-generic
# apt-cache rdepends linux-image-4.4.0-143-generic
linux-image-4.4.0-143-generic
Reverse Depends:
|linux-image-generic
|linux-modules-extra-4.4.0-143-generic
|linux-image-virtual
linux-image-unsigned-4.4.0-143-generic
And purged all of those reported. Then I am able to purge linux-image-4.4.0-143-generic painlessly.
see: apt-get -- remove triggers a package install?
edited Mar 18 at 18:55
johan
112
answered Mar 18 at 3:08
imkzhimkzh
62
Also see askubuntu.com/a/1119643/66509 . Thelinux-image-genericshould be removed if you do not want to get latest kernel.
– N0rbert
Mar 18 at 7:36
add a comment |
I’ve found the answer myself with the hints from deleted answer by @mikewhatever. (see him in comments, https://askubuntu.com/users/20054/mikewhatever)
The reason is some package is depending on either linux-image-4.4.0-143-generic or linux-image-unsigned-4.4.0-143-generic. So simply purging the signed kernel will trigger an automatic installation of the unsigned one to satisfy the dependency.
So I checked the reverse dependency of linux-image-4.4.0-143-generic
# apt-cache rdepends linux-image-4.4.0-143-generic
linux-image-4.4.0-143-generic
Reverse Depends:
|linux-image-generic
|linux-modules-extra-4.4.0-143-generic
|linux-image-virtual
linux-image-unsigned-4.4.0-143-generic
And purged all of those reported. Then I am able to purge linux-image-4.4.0-143-generic painlessly.
see: apt-get -- remove triggers a package install?
edited Mar 18 at 18:55
johan
112
answered Mar 18 at 3:08
imkzhimkzh
62
I’ve found the answer myself with the hints from deleted answer by @mikewhatever. (see him in comments, https://askubuntu.com/users/20054/mikewhatever)
The reason is some package is depending on either linux-image-4.4.0-143-generic or linux-image-unsigned-4.4.0-143-generic. So simply purging the signed kernel will trigger an automatic installation of the unsigned one to satisfy the dependency.
So I checked the reverse dependency of linux-image-4.4.0-143-generic
# apt-cache rdepends linux-image-4.4.0-143-generic
linux-image-4.4.0-143-generic
Reverse Depends:
|linux-image-generic
|linux-modules-extra-4.4.0-143-generic
|linux-image-virtual
linux-image-unsigned-4.4.0-143-generic
And purged all of those reported. Then I am able to purge linux-image-4.4.0-143-generic painlessly.
see: apt-get -- remove triggers a package install?
edited Mar 18 at 18:55
johan
112
answered Mar 18 at 3:08
imkzhimkzh
62
edited Mar 18 at 18:55
johan
112
edited Mar 18 at 18:55
johan
112
edited Mar 18 at 18:55
johan
112
112
answered Mar 18 at 3:08
imkzhimkzh
62
answered Mar 18 at 3:08
imkzhimkzh
62
answered Mar 18 at 3:08
imkzhimkzh
62
62
Also see askubuntu.com/a/1119643/66509 . Thelinux-image-genericshould be removed if you do not want to get latest kernel.
– N0rbert
Mar 18 at 7:36
add a comment |
Also see askubuntu.com/a/1119643/66509 . Thelinux-image-genericshould be removed if you do not want to get latest kernel.
– N0rbert
Mar 18 at 7:36
Also see askubuntu.com/a/1119643/66509 . The
linux-image-generic should be removed if you do not want to get latest kernel.– N0rbert
Mar 18 at 7:36
Also see askubuntu.com/a/1119643/66509 . The
linux-image-generic should be removed if you do not want to get latest kernel.– N0rbert
Mar 18 at 7:36
add a comment |
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Looks like it wants to remove all kernels, and install
linux-image-unsigned-4.4.0-143-generic. Not sure why though.– mikewhatever
Mar 18 at 2:20
Have you tried the latest Nvidia driver for your card? Nvidia may have fixed the (upstream) problem which finally hit the 4.4.0-143 kernel release.
– ubfan1
Mar 18 at 2:43
@ubfan1 i’ve not tried that yet, but according to some threads on nvidia forum, there are still problems with the latest kernel. and upgrading to a new driver may corrupt my programming environment, thank you.
– imkzh
Mar 18 at 2:51