How can I boot with an older kernel version?
up vote
52
down vote
favorite
The latest kernel is causing problems with my sound, which worked fine with an older version. As I have only Ubuntu installed, Grub is not getting displayed while booting. How can I manually choose my kernel version while booting?
grub2 kernel
edited Jul 11 '12 at 1:12
Jorge Castro
35.7k105422617
asked Nov 23 '11 at 19:44
Shahe Tajiryan
88061629
add a comment |
up vote
52
down vote
favorite
The latest kernel is causing problems with my sound, which worked fine with an older version. As I have only Ubuntu installed, Grub is not getting displayed while booting. How can I manually choose my kernel version while booting?
grub2 kernel
edited Jul 11 '12 at 1:12
Jorge Castro
35.7k105422617
asked Nov 23 '11 at 19:44
Shahe Tajiryan
88061629
add a comment |
up vote
52
down vote
favorite
up vote
52
down vote
favorite
The latest kernel is causing problems with my sound, which worked fine with an older version. As I have only Ubuntu installed, Grub is not getting displayed while booting. How can I manually choose my kernel version while booting?
grub2 kernel
edited Jul 11 '12 at 1:12
Jorge Castro
35.7k105422617
asked Nov 23 '11 at 19:44
Shahe Tajiryan
88061629
The latest kernel is causing problems with my sound, which worked fine with an older version. As I have only Ubuntu installed, Grub is not getting displayed while booting. How can I manually choose my kernel version while booting?
grub2 kernel
grub2 kernel
edited Jul 11 '12 at 1:12
Jorge Castro
35.7k105422617
asked Nov 23 '11 at 19:44
Shahe Tajiryan
88061629
edited Jul 11 '12 at 1:12
Jorge Castro
35.7k105422617
asked Nov 23 '11 at 19:44
Shahe Tajiryan
88061629
edited Jul 11 '12 at 1:12
Jorge Castro
35.7k105422617
edited Jul 11 '12 at 1:12
Jorge Castro
35.7k105422617
edited Jul 11 '12 at 1:12
Jorge Castro
35.7k105422617
35.7k105422617
asked Nov 23 '11 at 19:44
Shahe Tajiryan
88061629
asked Nov 23 '11 at 19:44
Shahe Tajiryan
88061629
asked Nov 23 '11 at 19:44
Shahe Tajiryan
88061629
88061629
add a comment |
add a comment |
7 Answers
7
active
oldest
votes
up vote
52
down vote
accepted
The simplest way to display your Grub is to press and hold the SHIFT button while booting.
As an alternative, you can always display Grub without it booting any particular kernel:
gksudo gedit /etc/default/grub
change GRUB_TIMEOUT to -1 and comment out GRUB_HIDDEN_TIMEOUT
finish off by running
sudo update-grub
edited Aug 8 '16 at 23:48
itnet7
3,25311520
answered Nov 23 '11 at 19:59
fossfreedom♦
148k36326371
5
Warning: Setting GRUB_TIMEOUT to a non-zero value when GRUB_HIDDEN_TIMEOUT is set is no longer supported.I commentedGRUB_HIDDEN_TIMEOUTand setGRUB_TIMEOUT=0
– acidghost
May 4 '15 at 10:33
Just to be explicit: GRUB_HIDDEN_TIMEOUT is an environment variable that needs to be set when running 'update-grub' ?
– Jonathan Hartley
Apr 28 '16 at 10:47
1
@JonathanHartleyGRUB_HIDDEN_TIMEOUTis defined in/etc/default/grub
– wjandrea
Aug 8 '16 at 19:35
add a comment |
up vote
18
down vote
Holding down the shift key while booting, will display the Grub menu.
You can now select an older kernel version.
For selecting an older kernel as the default kernel, please see this post
edited Apr 13 '17 at 12:23
Community♦
1
answered Nov 23 '11 at 19:57
martin
1,4961020
2
In my case (Ubuntu 16.04), it was left shift. Right shift didn't work.
– Bob
Aug 12 '16 at 15:04
1
what if the older kernels are not shown in grub (they were removed)? Does this mean these kernels are not accessible?
– Kalamalka Kid
Dec 7 '16 at 5:26
add a comment |
up vote
5
down vote
While booting when GRUB appears with entries select the second entry i.e., Advanced options for Ubuntu there you can see different older kernel versions which was installed previously, you can select one among them which works good for you.
Otherwise you go to the grub.cfg and paste your required kernel version on top of currently installed kernel entry. In both ways it works
answered Feb 12 '15 at 15:57
Suresh
99310
add a comment |
up vote
2
down vote
By the https://help.ubuntu.com/community/Grub2:
GRUB_HIDDEN_TIMEOUT=0
This setting determines how long a screen without the GRUB 2 menu will
be displayed. While the screen is blank, the user can press any key to
display the menu.
The default behavior is to hide the menu if only one operating system
is present. If a user with only Ubuntu wishes to display the menu,
place a # symbol at the start of this line to disable the hidden menu
feature.
Downgrade Kernel: How to downgrade the Kernel on 11.10
Upgrade kernel: How can I upgrade kernel to 3.1?
edited Apr 13 '17 at 12:23
Community♦
1
answered Nov 23 '11 at 20:02
user26687
11.6k12230
add a comment |
up vote
1
down vote
Please, install the previous kernel with the following command:
sudo apt-get install linux-image-3.0.0-12-generic linux-headers-3.0.0-12-generic
Then reboot. You will be prompted to choose your kernel.
Let me know if it worked.
Regards
answered Nov 23 '11 at 19:56
Paulo Arruda
67546
add a comment |
up vote
1
down vote
If you have a few Kernels in your system you can set manually what Kernel version will start:
Reboot your PC with pressed Shift button for display GRUB after BIOS will start.
You will see something like:
GRUB start pageSelect "Advanced options for Ubuntu" and memorize index of this menu line(count starts from 0) On the picture index is 1
Select concrete Kernel
Select concrete kernel for boot and also memorize index of this menu line(count starts from 0) On the picture index of chosen Kernel is 2
Start system. This action is for one boot on concrete kernel. If you want to start from concrete Kernel all time you should do next steps:
4.1. Open and edit GRUB setup file:
sudo nano /etc/default/grub
4.2. Find line GRUB_DEFAULT=...(by default GRUB_DEFAULT=0) and sets in quotes menu path to concrete Kernel(Remember menu indexes from steps 2 and 3). In my system first index was 1 and second was 2. I set in to GRUB_DEFAULT
GRUB_DEFAULT="1>2"
Save file.
4.3. Update GRUB information for apply changes:
sudo update-grub
4.4. After reboot you automatically boot on Kernel by chosen menu path. An example on my machine 1 -> 2
4.5. Check Kernel version after reboot:
uname -r
answered Dec 1 at 15:43
Jackkobec
111
add a comment |
up vote
-1
down vote
I found it simplest to do this using grub-customizer:
http://ubuntuhandbook.org/index.php/2014/04/install-grub-customizer-ubuntu-1404/
answered Mar 21 '16 at 10:30
muzzamo
169116
add a comment |
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7 Answers
7
active
oldest
votes
7 Answers
7
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
52
down vote
accepted
The simplest way to display your Grub is to press and hold the SHIFT button while booting.
As an alternative, you can always display Grub without it booting any particular kernel:
gksudo gedit /etc/default/grub
change GRUB_TIMEOUT to -1 and comment out GRUB_HIDDEN_TIMEOUT
finish off by running
sudo update-grub
edited Aug 8 '16 at 23:48
itnet7
3,25311520
answered Nov 23 '11 at 19:59
fossfreedom♦
148k36326371
5
Warning: Setting GRUB_TIMEOUT to a non-zero value when GRUB_HIDDEN_TIMEOUT is set is no longer supported.I commentedGRUB_HIDDEN_TIMEOUTand setGRUB_TIMEOUT=0
– acidghost
May 4 '15 at 10:33
Just to be explicit: GRUB_HIDDEN_TIMEOUT is an environment variable that needs to be set when running 'update-grub' ?
– Jonathan Hartley
Apr 28 '16 at 10:47
1
@JonathanHartleyGRUB_HIDDEN_TIMEOUTis defined in/etc/default/grub
– wjandrea
Aug 8 '16 at 19:35
add a comment |
up vote
52
down vote
accepted
The simplest way to display your Grub is to press and hold the SHIFT button while booting.
As an alternative, you can always display Grub without it booting any particular kernel:
gksudo gedit /etc/default/grub
change GRUB_TIMEOUT to -1 and comment out GRUB_HIDDEN_TIMEOUT
finish off by running
sudo update-grub
edited Aug 8 '16 at 23:48
itnet7
3,25311520
answered Nov 23 '11 at 19:59
fossfreedom♦
148k36326371
5
Warning: Setting GRUB_TIMEOUT to a non-zero value when GRUB_HIDDEN_TIMEOUT is set is no longer supported.I commentedGRUB_HIDDEN_TIMEOUTand setGRUB_TIMEOUT=0
– acidghost
May 4 '15 at 10:33
Just to be explicit: GRUB_HIDDEN_TIMEOUT is an environment variable that needs to be set when running 'update-grub' ?
– Jonathan Hartley
Apr 28 '16 at 10:47
1
@JonathanHartleyGRUB_HIDDEN_TIMEOUTis defined in/etc/default/grub
– wjandrea
Aug 8 '16 at 19:35
add a comment |
up vote
52
down vote
accepted
up vote
52
down vote
accepted
The simplest way to display your Grub is to press and hold the SHIFT button while booting.
As an alternative, you can always display Grub without it booting any particular kernel:
gksudo gedit /etc/default/grub
change GRUB_TIMEOUT to -1 and comment out GRUB_HIDDEN_TIMEOUT
finish off by running
sudo update-grub
edited Aug 8 '16 at 23:48
itnet7
3,25311520
answered Nov 23 '11 at 19:59
fossfreedom♦
148k36326371
The simplest way to display your Grub is to press and hold the SHIFT button while booting.
As an alternative, you can always display Grub without it booting any particular kernel:
gksudo gedit /etc/default/grub
change GRUB_TIMEOUT to -1 and comment out GRUB_HIDDEN_TIMEOUT
finish off by running
sudo update-grub
edited Aug 8 '16 at 23:48
itnet7
3,25311520
answered Nov 23 '11 at 19:59
fossfreedom♦
148k36326371
edited Aug 8 '16 at 23:48
itnet7
3,25311520
edited Aug 8 '16 at 23:48
itnet7
3,25311520
edited Aug 8 '16 at 23:48
itnet7
3,25311520
3,25311520
answered Nov 23 '11 at 19:59
fossfreedom♦
148k36326371
answered Nov 23 '11 at 19:59
fossfreedom♦
148k36326371
answered Nov 23 '11 at 19:59
fossfreedom♦
148k36326371
148k36326371
5
Warning: Setting GRUB_TIMEOUT to a non-zero value when GRUB_HIDDEN_TIMEOUT is set is no longer supported.I commentedGRUB_HIDDEN_TIMEOUTand setGRUB_TIMEOUT=0
– acidghost
May 4 '15 at 10:33
Just to be explicit: GRUB_HIDDEN_TIMEOUT is an environment variable that needs to be set when running 'update-grub' ?
– Jonathan Hartley
Apr 28 '16 at 10:47
1
@JonathanHartleyGRUB_HIDDEN_TIMEOUTis defined in/etc/default/grub
– wjandrea
Aug 8 '16 at 19:35
add a comment |
5
Warning: Setting GRUB_TIMEOUT to a non-zero value when GRUB_HIDDEN_TIMEOUT is set is no longer supported.I commentedGRUB_HIDDEN_TIMEOUTand setGRUB_TIMEOUT=0
– acidghost
May 4 '15 at 10:33
Just to be explicit: GRUB_HIDDEN_TIMEOUT is an environment variable that needs to be set when running 'update-grub' ?
– Jonathan Hartley
Apr 28 '16 at 10:47
1
@JonathanHartleyGRUB_HIDDEN_TIMEOUTis defined in/etc/default/grub
– wjandrea
Aug 8 '16 at 19:35
5
5
Warning: Setting GRUB_TIMEOUT to a non-zero value when GRUB_HIDDEN_TIMEOUT is set is no longer supported. I commented GRUB_HIDDEN_TIMEOUT and set GRUB_TIMEOUT=0– acidghost
May 4 '15 at 10:33
Warning: Setting GRUB_TIMEOUT to a non-zero value when GRUB_HIDDEN_TIMEOUT is set is no longer supported. I commented GRUB_HIDDEN_TIMEOUT and set GRUB_TIMEOUT=0– acidghost
May 4 '15 at 10:33
Just to be explicit: GRUB_HIDDEN_TIMEOUT is an environment variable that needs to be set when running 'update-grub' ?
– Jonathan Hartley
Apr 28 '16 at 10:47
Just to be explicit: GRUB_HIDDEN_TIMEOUT is an environment variable that needs to be set when running 'update-grub' ?
– Jonathan Hartley
Apr 28 '16 at 10:47
1
1
@JonathanHartley
GRUB_HIDDEN_TIMEOUT is defined in /etc/default/grub– wjandrea
Aug 8 '16 at 19:35
@JonathanHartley
GRUB_HIDDEN_TIMEOUT is defined in /etc/default/grub– wjandrea
Aug 8 '16 at 19:35
add a comment |
up vote
18
down vote
Holding down the shift key while booting, will display the Grub menu.
You can now select an older kernel version.
For selecting an older kernel as the default kernel, please see this post
edited Apr 13 '17 at 12:23
Community♦
1
answered Nov 23 '11 at 19:57
martin
1,4961020
2
In my case (Ubuntu 16.04), it was left shift. Right shift didn't work.
– Bob
Aug 12 '16 at 15:04
1
what if the older kernels are not shown in grub (they were removed)? Does this mean these kernels are not accessible?
– Kalamalka Kid
Dec 7 '16 at 5:26
add a comment |
up vote
18
down vote
Holding down the shift key while booting, will display the Grub menu.
You can now select an older kernel version.
For selecting an older kernel as the default kernel, please see this post
edited Apr 13 '17 at 12:23
Community♦
1
answered Nov 23 '11 at 19:57
martin
1,4961020
2
In my case (Ubuntu 16.04), it was left shift. Right shift didn't work.
– Bob
Aug 12 '16 at 15:04
1
what if the older kernels are not shown in grub (they were removed)? Does this mean these kernels are not accessible?
– Kalamalka Kid
Dec 7 '16 at 5:26
add a comment |
up vote
18
down vote
up vote
18
down vote
Holding down the shift key while booting, will display the Grub menu.
You can now select an older kernel version.
For selecting an older kernel as the default kernel, please see this post
edited Apr 13 '17 at 12:23
Community♦
1
answered Nov 23 '11 at 19:57
martin
1,4961020
Holding down the shift key while booting, will display the Grub menu.
You can now select an older kernel version.
For selecting an older kernel as the default kernel, please see this post
edited Apr 13 '17 at 12:23
Community♦
1
answered Nov 23 '11 at 19:57
martin
1,4961020
edited Apr 13 '17 at 12:23
Community♦
1
edited Apr 13 '17 at 12:23
Community♦
1
edited Apr 13 '17 at 12:23
Community♦
1
1
answered Nov 23 '11 at 19:57
martin
1,4961020
answered Nov 23 '11 at 19:57
martin
1,4961020
answered Nov 23 '11 at 19:57
martin
1,4961020
1,4961020
2
In my case (Ubuntu 16.04), it was left shift. Right shift didn't work.
– Bob
Aug 12 '16 at 15:04
1
what if the older kernels are not shown in grub (they were removed)? Does this mean these kernels are not accessible?
– Kalamalka Kid
Dec 7 '16 at 5:26
add a comment |
2
In my case (Ubuntu 16.04), it was left shift. Right shift didn't work.
– Bob
Aug 12 '16 at 15:04
1
what if the older kernels are not shown in grub (they were removed)? Does this mean these kernels are not accessible?
– Kalamalka Kid
Dec 7 '16 at 5:26
2
2
In my case (Ubuntu 16.04), it was left shift. Right shift didn't work.
– Bob
Aug 12 '16 at 15:04
In my case (Ubuntu 16.04), it was left shift. Right shift didn't work.
– Bob
Aug 12 '16 at 15:04
1
1
what if the older kernels are not shown in grub (they were removed)? Does this mean these kernels are not accessible?
– Kalamalka Kid
Dec 7 '16 at 5:26
what if the older kernels are not shown in grub (they were removed)? Does this mean these kernels are not accessible?
– Kalamalka Kid
Dec 7 '16 at 5:26
add a comment |
up vote
5
down vote
While booting when GRUB appears with entries select the second entry i.e., Advanced options for Ubuntu there you can see different older kernel versions which was installed previously, you can select one among them which works good for you.
Otherwise you go to the grub.cfg and paste your required kernel version on top of currently installed kernel entry. In both ways it works
answered Feb 12 '15 at 15:57
Suresh
99310
add a comment |
up vote
5
down vote
While booting when GRUB appears with entries select the second entry i.e., Advanced options for Ubuntu there you can see different older kernel versions which was installed previously, you can select one among them which works good for you.
Otherwise you go to the grub.cfg and paste your required kernel version on top of currently installed kernel entry. In both ways it works
answered Feb 12 '15 at 15:57
Suresh
99310
add a comment |
up vote
5
down vote
up vote
5
down vote
While booting when GRUB appears with entries select the second entry i.e., Advanced options for Ubuntu there you can see different older kernel versions which was installed previously, you can select one among them which works good for you.
Otherwise you go to the grub.cfg and paste your required kernel version on top of currently installed kernel entry. In both ways it works
answered Feb 12 '15 at 15:57
Suresh
99310
While booting when GRUB appears with entries select the second entry i.e., Advanced options for Ubuntu there you can see different older kernel versions which was installed previously, you can select one among them which works good for you.
Otherwise you go to the grub.cfg and paste your required kernel version on top of currently installed kernel entry. In both ways it works
answered Feb 12 '15 at 15:57
Suresh
99310
answered Feb 12 '15 at 15:57
Suresh
99310
answered Feb 12 '15 at 15:57
Suresh
99310
answered Feb 12 '15 at 15:57
Suresh
99310
99310
add a comment |
add a comment |
up vote
2
down vote
By the https://help.ubuntu.com/community/Grub2:
GRUB_HIDDEN_TIMEOUT=0
This setting determines how long a screen without the GRUB 2 menu will
be displayed. While the screen is blank, the user can press any key to
display the menu.
The default behavior is to hide the menu if only one operating system
is present. If a user with only Ubuntu wishes to display the menu,
place a # symbol at the start of this line to disable the hidden menu
feature.
Downgrade Kernel: How to downgrade the Kernel on 11.10
Upgrade kernel: How can I upgrade kernel to 3.1?
edited Apr 13 '17 at 12:23
Community♦
1
answered Nov 23 '11 at 20:02
user26687
11.6k12230
add a comment |
up vote
2
down vote
By the https://help.ubuntu.com/community/Grub2:
GRUB_HIDDEN_TIMEOUT=0
This setting determines how long a screen without the GRUB 2 menu will
be displayed. While the screen is blank, the user can press any key to
display the menu.
The default behavior is to hide the menu if only one operating system
is present. If a user with only Ubuntu wishes to display the menu,
place a # symbol at the start of this line to disable the hidden menu
feature.
Downgrade Kernel: How to downgrade the Kernel on 11.10
Upgrade kernel: How can I upgrade kernel to 3.1?
edited Apr 13 '17 at 12:23
Community♦
1
answered Nov 23 '11 at 20:02
user26687
11.6k12230
add a comment |
up vote
2
down vote
up vote
2
down vote
By the https://help.ubuntu.com/community/Grub2:
GRUB_HIDDEN_TIMEOUT=0
This setting determines how long a screen without the GRUB 2 menu will
be displayed. While the screen is blank, the user can press any key to
display the menu.
The default behavior is to hide the menu if only one operating system
is present. If a user with only Ubuntu wishes to display the menu,
place a # symbol at the start of this line to disable the hidden menu
feature.
Downgrade Kernel: How to downgrade the Kernel on 11.10
Upgrade kernel: How can I upgrade kernel to 3.1?
edited Apr 13 '17 at 12:23
Community♦
1
answered Nov 23 '11 at 20:02
user26687
11.6k12230
By the https://help.ubuntu.com/community/Grub2:
GRUB_HIDDEN_TIMEOUT=0
This setting determines how long a screen without the GRUB 2 menu will
be displayed. While the screen is blank, the user can press any key to
display the menu.
The default behavior is to hide the menu if only one operating system
is present. If a user with only Ubuntu wishes to display the menu,
place a # symbol at the start of this line to disable the hidden menu
feature.
Downgrade Kernel: How to downgrade the Kernel on 11.10
Upgrade kernel: How can I upgrade kernel to 3.1?
edited Apr 13 '17 at 12:23
Community♦
1
answered Nov 23 '11 at 20:02
user26687
11.6k12230
edited Apr 13 '17 at 12:23
Community♦
1
edited Apr 13 '17 at 12:23
Community♦
1
edited Apr 13 '17 at 12:23
Community♦
1
1
answered Nov 23 '11 at 20:02
user26687
11.6k12230
answered Nov 23 '11 at 20:02
user26687
11.6k12230
answered Nov 23 '11 at 20:02
user26687
11.6k12230
11.6k12230
add a comment |
add a comment |
up vote
1
down vote
Please, install the previous kernel with the following command:
sudo apt-get install linux-image-3.0.0-12-generic linux-headers-3.0.0-12-generic
Then reboot. You will be prompted to choose your kernel.
Let me know if it worked.
Regards
answered Nov 23 '11 at 19:56
Paulo Arruda
67546
add a comment |
up vote
1
down vote
Please, install the previous kernel with the following command:
sudo apt-get install linux-image-3.0.0-12-generic linux-headers-3.0.0-12-generic
Then reboot. You will be prompted to choose your kernel.
Let me know if it worked.
Regards
answered Nov 23 '11 at 19:56
Paulo Arruda
67546
add a comment |
up vote
1
down vote
up vote
1
down vote
Please, install the previous kernel with the following command:
sudo apt-get install linux-image-3.0.0-12-generic linux-headers-3.0.0-12-generic
Then reboot. You will be prompted to choose your kernel.
Let me know if it worked.
Regards
answered Nov 23 '11 at 19:56
Paulo Arruda
67546
Please, install the previous kernel with the following command:
sudo apt-get install linux-image-3.0.0-12-generic linux-headers-3.0.0-12-generic
Then reboot. You will be prompted to choose your kernel.
Let me know if it worked.
Regards
answered Nov 23 '11 at 19:56
Paulo Arruda
67546
answered Nov 23 '11 at 19:56
Paulo Arruda
67546
answered Nov 23 '11 at 19:56
Paulo Arruda
67546
answered Nov 23 '11 at 19:56
Paulo Arruda
67546
67546
add a comment |
add a comment |
up vote
1
down vote
If you have a few Kernels in your system you can set manually what Kernel version will start:
Reboot your PC with pressed Shift button for display GRUB after BIOS will start.
You will see something like:
GRUB start pageSelect "Advanced options for Ubuntu" and memorize index of this menu line(count starts from 0) On the picture index is 1
Select concrete Kernel
Select concrete kernel for boot and also memorize index of this menu line(count starts from 0) On the picture index of chosen Kernel is 2
Start system. This action is for one boot on concrete kernel. If you want to start from concrete Kernel all time you should do next steps:
4.1. Open and edit GRUB setup file:
sudo nano /etc/default/grub
4.2. Find line GRUB_DEFAULT=...(by default GRUB_DEFAULT=0) and sets in quotes menu path to concrete Kernel(Remember menu indexes from steps 2 and 3). In my system first index was 1 and second was 2. I set in to GRUB_DEFAULT
GRUB_DEFAULT="1>2"
Save file.
4.3. Update GRUB information for apply changes:
sudo update-grub
4.4. After reboot you automatically boot on Kernel by chosen menu path. An example on my machine 1 -> 2
4.5. Check Kernel version after reboot:
uname -r
answered Dec 1 at 15:43
Jackkobec
111
add a comment |
up vote
1
down vote
If you have a few Kernels in your system you can set manually what Kernel version will start:
Reboot your PC with pressed Shift button for display GRUB after BIOS will start.
You will see something like:
GRUB start pageSelect "Advanced options for Ubuntu" and memorize index of this menu line(count starts from 0) On the picture index is 1
Select concrete Kernel
Select concrete kernel for boot and also memorize index of this menu line(count starts from 0) On the picture index of chosen Kernel is 2
Start system. This action is for one boot on concrete kernel. If you want to start from concrete Kernel all time you should do next steps:
4.1. Open and edit GRUB setup file:
sudo nano /etc/default/grub
4.2. Find line GRUB_DEFAULT=...(by default GRUB_DEFAULT=0) and sets in quotes menu path to concrete Kernel(Remember menu indexes from steps 2 and 3). In my system first index was 1 and second was 2. I set in to GRUB_DEFAULT
GRUB_DEFAULT="1>2"
Save file.
4.3. Update GRUB information for apply changes:
sudo update-grub
4.4. After reboot you automatically boot on Kernel by chosen menu path. An example on my machine 1 -> 2
4.5. Check Kernel version after reboot:
uname -r
answered Dec 1 at 15:43
Jackkobec
111
add a comment |
up vote
1
down vote
up vote
1
down vote
If you have a few Kernels in your system you can set manually what Kernel version will start:
Reboot your PC with pressed Shift button for display GRUB after BIOS will start.
You will see something like:
GRUB start pageSelect "Advanced options for Ubuntu" and memorize index of this menu line(count starts from 0) On the picture index is 1
Select concrete Kernel
Select concrete kernel for boot and also memorize index of this menu line(count starts from 0) On the picture index of chosen Kernel is 2
Start system. This action is for one boot on concrete kernel. If you want to start from concrete Kernel all time you should do next steps:
4.1. Open and edit GRUB setup file:
sudo nano /etc/default/grub
4.2. Find line GRUB_DEFAULT=...(by default GRUB_DEFAULT=0) and sets in quotes menu path to concrete Kernel(Remember menu indexes from steps 2 and 3). In my system first index was 1 and second was 2. I set in to GRUB_DEFAULT
GRUB_DEFAULT="1>2"
Save file.
4.3. Update GRUB information for apply changes:
sudo update-grub
4.4. After reboot you automatically boot on Kernel by chosen menu path. An example on my machine 1 -> 2
4.5. Check Kernel version after reboot:
uname -r
answered Dec 1 at 15:43
Jackkobec
111
If you have a few Kernels in your system you can set manually what Kernel version will start:
Reboot your PC with pressed Shift button for display GRUB after BIOS will start.
You will see something like:
GRUB start pageSelect "Advanced options for Ubuntu" and memorize index of this menu line(count starts from 0) On the picture index is 1
Select concrete Kernel
Select concrete kernel for boot and also memorize index of this menu line(count starts from 0) On the picture index of chosen Kernel is 2
Start system. This action is for one boot on concrete kernel. If you want to start from concrete Kernel all time you should do next steps:
4.1. Open and edit GRUB setup file:
sudo nano /etc/default/grub
4.2. Find line GRUB_DEFAULT=...(by default GRUB_DEFAULT=0) and sets in quotes menu path to concrete Kernel(Remember menu indexes from steps 2 and 3). In my system first index was 1 and second was 2. I set in to GRUB_DEFAULT
GRUB_DEFAULT="1>2"
Save file.
4.3. Update GRUB information for apply changes:
sudo update-grub
4.4. After reboot you automatically boot on Kernel by chosen menu path. An example on my machine 1 -> 2
4.5. Check Kernel version after reboot:
uname -r
answered Dec 1 at 15:43
Jackkobec
111
answered Dec 1 at 15:43
Jackkobec
111
answered Dec 1 at 15:43
Jackkobec
111
answered Dec 1 at 15:43
Jackkobec
111
111
add a comment |
add a comment |
up vote
-1
down vote
I found it simplest to do this using grub-customizer:
http://ubuntuhandbook.org/index.php/2014/04/install-grub-customizer-ubuntu-1404/
answered Mar 21 '16 at 10:30
muzzamo
169116
add a comment |
up vote
-1
down vote
I found it simplest to do this using grub-customizer:
http://ubuntuhandbook.org/index.php/2014/04/install-grub-customizer-ubuntu-1404/
answered Mar 21 '16 at 10:30
muzzamo
169116
add a comment |
up vote
-1
down vote
up vote
-1
down vote
I found it simplest to do this using grub-customizer:
http://ubuntuhandbook.org/index.php/2014/04/install-grub-customizer-ubuntu-1404/
answered Mar 21 '16 at 10:30
muzzamo
169116
I found it simplest to do this using grub-customizer:
http://ubuntuhandbook.org/index.php/2014/04/install-grub-customizer-ubuntu-1404/
answered Mar 21 '16 at 10:30
muzzamo
169116
edited Mar 21 '16 at 10:52
answered Mar 21 '16 at 10:30
muzzamo
169116
answered Mar 21 '16 at 10:30
muzzamo
169116
answered Mar 21 '16 at 10:30
muzzamo
169116
169116
add a comment |
add a comment |
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