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Old 02-10-2022, 10:20 AM   #16
Hanisch
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Registered: Mar 2016
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Quote:
Originally Posted by shruggy View Post
On CentOS, you reconfigure GRUB with grubby.
Sorry, I can't find the argument of 'grubby' to delete the TOP entry in my Boot-menu.
Quote:
$ sudo grubby --info=DEFAULT
index=1
kernel="/boot/vmlinuz-4.18.0-348.7.1.el8_5.x86_64"
args="ro crashkernel=auto resume=UUID=0cffd2aa-a2ca-4ec5-aba0-07fc7fbd1a7b rhgb quiet $tuned_params"
root="UUID=557a3bf0-15eb-429c-8faa-227cd382bfd9"
initrd="/boot/initramfs-4.18.0-348.7.1.el8_5.x86_64.img $tuned_initrd"
title="CentOS Linux (4.18.0-348.7.1.el8_5.x86_64) 8"
id="36d9ad1131d34dfebb057d028dc16a7a-4.18.0-348.7.1.el8_5.x86_64"
Quote:
$ sudo grubby --info=ALL
index=0
kernel="/boot/vmlinuz-4.18.0-358.el8.x86_64"
args="ro crashkernel=auto resume=UUID=0cffd2aa-a2ca-4ec5-aba0-07fc7fbd1a7b rhgb quiet $tuned_params"
root="UUID=557a3bf0-15eb-429c-8faa-227cd382bfd9"
initrd="/boot/initramfs-4.18.0-358.el8.x86_64.img $tuned_initrd"
title="CentOS Stream (4.18.0-358.el8.x86_64) 8"
id="36d9ad1131d34dfebb057d028dc16a7a-4.18.0-358.el8.x86_64"
index=1
kernel="/boot/vmlinuz-4.18.0-348.7.1.el8_5.x86_64"
args="ro crashkernel=auto resume=UUID=0cffd2aa-a2ca-4ec5-aba0-07fc7fbd1a7b rhgb quiet $tuned_params"
root="UUID=557a3bf0-15eb-429c-8faa-227cd382bfd9"
initrd="/boot/initramfs-4.18.0-348.7.1.el8_5.x86_64.img $tuned_initrd"
title="CentOS Linux (4.18.0-348.7.1.el8_5.x86_64) 8"
id="36d9ad1131d34dfebb057d028dc16a7a-4.18.0-348.7.1.el8_5.x86_64"
index=2
kernel="/boot/vmlinuz-4.18.0-240.15.1.el8_3.x86_64"
args="ro crashkernel=auto resume=UUID=0cffd2aa-a2ca-4ec5-aba0-07fc7fbd1a7b rhgb quiet $tuned_params"
root="UUID=557a3bf0-15eb-429c-8faa-227cd382bfd9"
initrd="/boot/initramfs-4.18.0-240.15.1.el8_3.x86_64.img $tuned_initrd"
title="CentOS Linux (4.18.0-240.15.1.el8_3.x86_64) 8"
id="36d9ad1131d34dfebb057d028dc16a7a-4.18.0-240.15.1.el8_3.x86_64"
index=3
kernel="/vmlinuz-0-rescue-36d9ad1131d34dfebb057d028dc16a7a"
args="ro crashkernel=auto resume=UUID=0cffd2aa-a2ca-4ec5-aba0-07fc7fbd1a7b rhgb quiet"
root="UUID=557a3bf0-15eb-429c-8faa-227cd382bfd9"
initrd="/initramfs-0-rescue-36d9ad1131d34dfebb057d028dc16a7a.img"
title="CentOS Linux (0-rescue-36d9ad1131d34dfebb057d028dc16a7a) 8 (Core)"
id="36d9ad1131d34dfebb057d028dc16a7a-0-rescue"
I will the index=1 make to index=0.

with regards
Ch. Hanisch
 
Old 02-10-2022, 12:02 PM   #17
shruggy
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Code:
sudo grubby --remove-kernel=/boot/vmlinuz-4.18.0-358.el8.x86_64
 
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Old 02-10-2022, 12:53 PM   #18
Hanisch
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Registered: Mar 2016
Posts: 26

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Quote:
Originally Posted by shruggy View Post
Code:
sudo grubby --remove-kernel=/boot/vmlinuz-4.18.0-358.el8.x86_64
Quote:
$ sudo grubby --remove-kernel=/boot/vmlinuz-4.18.0-358.el8.x86_64
The param /boot/vmlinuz-4.18.0-358.el8.x86_64 is incorrect
/boot/vmlinuz-4.18.0-358.el8.x86_64 is already deleted manuelly.

with regards
Ch. Hanisch
 
Old 02-10-2022, 12:58 PM   #19
shruggy
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You shouldn't have deleted it manually. Now, you probably have to manually delete the corresponding file from /boot/loader/entries/. This is what grubby would do for you automatically if you followed the proper procedure.
 
Old 02-10-2022, 01:01 PM   #20
pan64
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it requires some [more] creativity from now. Either you try to restore the mentioned file (by reinstalling it) and rerun that grubby command again or try to understand how can you configure your grub without grubby.
 
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Old 02-10-2022, 01:04 PM   #21
Hanisch
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Registered: Mar 2016
Posts: 26

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Hello,
after
Quote:
$ sudo grubby --remove-kernel=/boot/vmlinuz-4.18.0-358.el8.x86_64
the grub BOOT-Menu is reconfigured and now has my DEFAULT-Kernel index=0.
Quote:
$ sudo grubby --info=DEFAULT
index=0
kernel="/boot/vmlinuz-4.18.0-348.7.1.el8_5.x86_64"
args="ro crashkernel=auto resume=UUID=0cffd2aa-a2ca-4ec5-aba0-07fc7fbd1a7b rhgb quiet $tuned_params"
root="UUID=557a3bf0-15eb-429c-8faa-227cd382bfd9"
initrd="/boot/initramfs-4.18.0-348.7.1.el8_5.x86_64.img $tuned_initrd"
title="CentOS Linux (4.18.0-348.7.1.el8_5.x86_64) 8"
id="36d9ad1131d34dfebb057d028dc16a7a-4.18.0-348.7.1.el8_5.x86_64"
All is good now - thank you very much!

But it is necessary manual deleting all /boot/*-4.18.0-358.*


with regards
Ch. Hanisch
Last edited by Hanisch; 02-10-2022 at 02:50 PM.
 
Old 02-11-2022, 12:13 AM   #22
pan64
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you do not need to delete it at all. And don't forget, that will be [probably] reinstalled next time you update your system. That means that will be the default kernel again. And also it will be overwritten when the next version is installed.
 
Old 02-11-2022, 04:05 AM   #23
Hanisch
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Registered: Mar 2016
Posts: 26

Original Poster
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Quote:
Originally Posted by pan64 View Post
you do not need to delete it at all. And don't forget, that will be [probably] reinstalled next time you update your system. That means that will be the default kernel again. And also it will be overwritten when the next version is installed.
No, I have set to hinder the reapplication of the kernel-installation:
Quote:
# cat /etc/yum.conf
[main]
gpgcheck=1
installonly_limit=3
clean_requirements_on_remove=True
best=True
skip_if_unavailable=False
exclude=kernel*
The newest kernel is take out of service for me.

with regards
Ch. Hanisch
Last edited by Hanisch; 02-11-2022 at 04:36 AM.
 
  


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