I want to remove my current kernel after upgradtion of new kernel
Hi, I am upgrading my machine with new version of os which have newer version of the kernel. I have to remove my current kernel(which is going to be old kernel in next reboot) after up-gradation because i don't want to get prompt to choose the kernel at booting time. I tried few methods: 1 . Try to remove using command ( sudo apt-get purge uname -r ) -- but after it gives a pop up (dialog box) to select yes or no.(But i don't to do that because system is automated, user should not interact with system). My intention is remove to old kernel at very first time when it reboot(so no prompt will show to select the kernel by grub).. Please if you have any best solution for this. please share. Thanks Anurudh
On Tue, Mar 03, 2015 at 05:12:44PM +0530, Anurudh Tiwari wrote:
Hi,
I am upgrading my machine with new version of os which have newer version of the kernel. I have to remove my current kernel(which is going to be old kernel in next reboot) after up-gradation because i don't want to get prompt to choose the kernel at booting time.
I tried few methods: 1 . Try to remove using command ( sudo apt-get purge uname -r ) -- but after it gives a pop up (dialog box) to select yes or no.(But i don't to do that because system is automated, user should not interact with system).
My intention is remove to old kernel at very first time when it reboot(so no prompt will show to select the kernel by grub)..
Please if you have any best solution for this. please share.
Thanks Anurudh
I believe you can do `apt-get -y ...` which will confirm any prompts that the user would normally be given. Daniel
Wrong list I guess, try askubuntu.com next or maybe google, you know second result for "linux uninstall kernel" has your answers... http://www.cyberciti.biz/faq/debian-redhat-linux-delete-kernel-command/ You have a debian/ubuntu like system. Also you should always keep an old kernel in case you notice something broken on your new kernel. On 03/03/15 11:42, Anurudh Tiwari wrote:
Hi,
I am upgrading my machine with new version of os which have newer version of the kernel. I have to remove my current kernel(which is going to be old kernel in next reboot) after up-gradation because i don't want to get prompt to choose the kernel at booting time.
I tried few methods: 1 . Try to remove using command ( sudo apt-get purge uname -r ) -- but after it gives a pop up (dialog box) to select yes or no.(But i don't to do that because system is automated, user should not interact with system).
My intention is remove to old kernel at very first time when it reboot(so no prompt will show to select the kernel by grub)..
Please if you have any best solution for this. please share.
Thanks Anurudh
_______________________________________________ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
@ Denial : I have tried with -y option. it exempt me from console confirmation but not from pop-up. @Malte : I am not using ubuntu. Its a Debian based system. On Tue, Mar 3, 2015 at 5:22 PM, Malte Vesper < malte.vesper@postgrad.manchester.ac.uk> wrote:
Wrong list I guess, try askubuntu.com next
or maybe google, you know second result for "linux uninstall kernel" has your answers...
http://www.cyberciti.biz/faq/debian-redhat-linux-delete-kernel-command/
You have a debian/ubuntu like system.
Also you should always keep an old kernel in case you notice something broken on your new kernel.
On 03/03/15 11:42, Anurudh Tiwari wrote:
Hi,
I am upgrading my machine with new version of os which have newer version of the kernel. I have to remove my current kernel(which is going to be old kernel in next reboot) after up-gradation because i don't want to get prompt to choose the kernel at booting time.
I tried few methods: 1 . Try to remove using command ( sudo apt-get purge uname -r ) -- but after it gives a pop up (dialog box) to select yes or no.(But i don't to do that because system is automated, user should not interact with system).
My intention is remove to old kernel at very first time when it reboot(so no prompt will show to select the kernel by grub)..
Please if you have any best solution for this. please share.
Thanks Anurudh
_______________________________________________ Kernelnewbies mailing listKernelnewbies@kernelnewbies.orghttp://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
_______________________________________________ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Still the link applies to debian as well, look for: ".deb based distro - Debian or Ubuntu Linux" And i believe the manual steps at the bottom apply to linux in general On 03/03/15 12:00, Anurudh Tiwari wrote:
@ Denial : I have tried with -y option. it exempt me from console confirmation but not from pop-up.
@Malte : I am not using ubuntu. Its a Debian based system.
On Tue, Mar 3, 2015 at 5:22 PM, Malte Vesper <malte.vesper@postgrad.manchester.ac.uk <mailto:malte.vesper@postgrad.manchester.ac.uk>> wrote:
Wrong list I guess, try askubuntu.com <http://askubuntu.com> next
or maybe google, you know second result for "linux uninstall kernel" has your answers...
http://www.cyberciti.biz/faq/debian-redhat-linux-delete-kernel-command/
You have a debian/ubuntu like system.
Also you should always keep an old kernel in case you notice something broken on your new kernel.
On 03/03/15 11:42, Anurudh Tiwari wrote:
Hi,
I am upgrading my machine with new version of os which have newer version of the kernel. I have to remove my current kernel(which is going to be old kernel in next reboot) after up-gradation because i don't want to get prompt to choose the kernel at booting time.
I tried few methods: 1 . Try to remove using command ( sudo apt-get purge uname -r ) -- but after it gives a pop up (dialog box) to select yes or no.(But i don't to do that because system is automated, user should not interact with system).
My intention is remove to old kernel at very first time when it reboot(so no prompt will show to select the kernel by grub)..
Please if you have any best solution for this. please share.
Thanks Anurudh
_______________________________________________ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org <mailto:Kernelnewbies@kernelnewbies.org> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
_______________________________________________ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org <mailto:Kernelnewbies@kernelnewbies.org> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Date: Tue, 3 Mar 2015 12:12:16 +0000 From: malte.vesper@postgrad.manchester.ac.uk To: anurudhtripathi@gmail.com Subject: Re: I want to remove my current kernel after upgradtion of new kernel CC: kernelnewbies@kernelnewbies.org Still the link applies to debian as well, look for: ".deb based distro - Debian or Ubuntu Linux" And i believe the manual steps at the bottom apply to linux in general On 03/03/15 12:00, Anurudh Tiwari wrote: @ Denial : I have tried with -y option. it exempt me from console confirmation but not from pop-up. @Malte : I am not using ubuntu. Its a Debian based system. On Tue, Mar 3, 2015 at 5:22 PM, Malte Vesper wrote: Wrong list I guess, try askubuntu.com next or maybe google, you know second result for "linux uninstall kernel" has your answers... http://www.cyberciti.biz/faq/debian-redhat-linux-delete-kernel-command/ You have a debian/ubuntu like system. Also you should always keep an old kernel in case you notice something broken on your new kernel. On 03/03/15 11:42, Anurudh Tiwari wrote: Hi, I am upgrading my machine with new version of os which have newer version of the kernel. I have to remove my current kernel(which is going to be old kernel in next reboot) after up-gradation because i don't want to get prompt to choose the kernel at booting time. I tried few methods: 1 . Try to remove using command ( sudo apt-get purge uname -r ) -- but after it gives a pop up (dialog box) to select yes or no.(But i don't to do that because system is automated, user should not interact with system). My intention is remove to old kernel at very first time when it reboot(so no prompt will show to select the kernel by grub).. Please if you have any best solution for this. please share. Thanks Anurudh _______________________________________________ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies _______________________________________________ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies Anurudh, In case your only concern is that you should not wait to make a choice of kernel at boot time then you can change the grub.conf file. In case of older grub, on installing the new kernel the boot entry for it will be on the top. So make "default=0" and "timeout=0" in your grub.conf file. In case of grub-2, You may need to do some more work through grub config files in /etc and then building new grub.cfg file through grub2-mkconfig command. Another work-around is to remove all the initrd, System.map and vmlinuz files of unwanted kernels from the /boot location and rebuild grub.conf. Hope this helps! -- Adheer
Thanks Valdis and Adheer. lets try.. Thanks Anurudh On Tue, Mar 3, 2015 at 6:41 PM, adheer chandravanshi <adheer.c@hotmail.com> wrote:
Date: Tue, 3 Mar 2015 12:12:16 +0000 From: malte.vesper@postgrad.manchester.ac.uk To: anurudhtripathi@gmail.com Subject: Re: I want to remove my current kernel after upgradtion of new kernel CC: kernelnewbies@kernelnewbies.org Still the link applies to debian as well, look for: ".deb based distro - Debian or Ubuntu Linux" And i believe the manual steps at the bottom apply to linux in general On 03/03/15 12:00, Anurudh Tiwari wrote: @ Denial : I have tried with -y option. it exempt me from console confirmation but not from pop-up. @Malte : I am not using ubuntu. Its a Debian based system. On Tue, Mar 3, 2015 at 5:22 PM, Malte Vesper wrote: Wrong list I guess, try askubuntu.com next or maybe google, you know second result for "linux uninstall kernel" has your answers... http://www.cyberciti.biz/faq/debian-redhat-linux-delete-kernel-command/ You have a debian/ubuntu like system. Also you should always keep an old kernel in case you notice something broken on your new kernel. On 03/03/15 11:42, Anurudh Tiwari wrote: Hi, I am upgrading my machine with new version of os which have newer version of the kernel. I have to remove my current kernel(which is going to be old kernel in next reboot) after up-gradation because i don't want to get prompt to choose the kernel at booting time. I tried few methods: 1 . Try to remove using command ( sudo apt-get purge uname -r ) -- but after it gives a pop up (dialog box) to select yes or no.(But i don't to do that because system is automated, user should not interact with system). My intention is remove to old kernel at very first time when it reboot(so no prompt will show to select the kernel by grub).. Please if you have any best solution for this. please share. Thanks Anurudh _______________________________________________ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies _______________________________________________ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies Anurudh, In case your only concern is that you should not wait to make a choice of kernel at boot time then you can change the grub.conf file. In case of older grub, on installing the new kernel the boot entry for it will be on the top. So make "default=0" and "timeout=0" in your grub.conf file. In case of grub-2, You may need to do some more work through grub config files in /etc and then building new grub.cfg file through grub2-mkconfig command. Another work-around is to remove all the initrd, System.map and vmlinuz files of unwanted kernels from the /boot location and rebuild grub.conf. Hope this helps! -- Adheer
On Tue, 03 Mar 2015 17:12:44 +0530, Anurudh Tiwari said:
I have to remove my current kernel(which is going to be old kernel in next reboot) after up-gradation because i don't want to get prompt to choose the kernel at booting time.
Protip: You *really* want to keep at least one extra known-working kernel on your /boot just in case you find a bug in the one you installed. If you don't like getting prompted, set up grub or grub2 or whatever to boot a default kernel, with a timeout of 1 second or so, so that if you ignore it, it boots into your default kernel, but if things go sideways you can boot the old kernel. And remember - it doesn't have to be a *kernel* bug - if something decidess to rebuild your initrd/initramfs, and botches it, you're going to havea bad time at the next reboot. So you really want a known-bootable kernel/initrd pair or two on /boot just in case...
participants (5)
-
adheer chandravanshi -
Anurudh Tiwari -
Daniel Lockyer -
Malte Vesper -
Valdis.Kletnieks@vt.edu