Ubuntu freezes during boot
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I'm running ubuntu 14.04 on a Acer E17 laptop. From one to another the computer seems to freeze during the boot sequence. It boots to grub without an issue, but when I select Ubuntu it seems to freeze on a black screen. No indication as to what it's doing or any error code. Normally it would display the word Ubuntu with 5 dots beneath it that change from white to red.
If I boot the recovery boot (of the same kernel) and in recovery immediately hit resume it boots normally and I can login.
I already tried to downgrade some recent updates using synaptic, but that did not help. The next thing I tried is to try to create some boot logs with bootlogd, but /var/log/boot.log remains empty. Does anyone have an idea where to go next?
Edit: after a couple of days /var/log/boot.log and /var/log/boot have some information, but no errors of any kind.
cat /var/log/boot produces this output: http://pastebin.com/FEjBveEG
cat /var/log/boot.log produces this output: http://pastebin.com/iycLg0p0
(formatting is off, no idea why, it isn't in the output)
14.04 boot
edited Jun 15 '16 at 15:47
amc
4,80462746
asked May 3 '15 at 6:28
MartijnMartijn
6115
bumped to the homepage by Community♦ 21 hours ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
add a comment |
I'm running ubuntu 14.04 on a Acer E17 laptop. From one to another the computer seems to freeze during the boot sequence. It boots to grub without an issue, but when I select Ubuntu it seems to freeze on a black screen. No indication as to what it's doing or any error code. Normally it would display the word Ubuntu with 5 dots beneath it that change from white to red.
If I boot the recovery boot (of the same kernel) and in recovery immediately hit resume it boots normally and I can login.
I already tried to downgrade some recent updates using synaptic, but that did not help. The next thing I tried is to try to create some boot logs with bootlogd, but /var/log/boot.log remains empty. Does anyone have an idea where to go next?
Edit: after a couple of days /var/log/boot.log and /var/log/boot have some information, but no errors of any kind.
cat /var/log/boot produces this output: http://pastebin.com/FEjBveEG
cat /var/log/boot.log produces this output: http://pastebin.com/iycLg0p0
(formatting is off, no idea why, it isn't in the output)
14.04 boot
edited Jun 15 '16 at 15:47
amc
4,80462746
asked May 3 '15 at 6:28
MartijnMartijn
6115
bumped to the homepage by Community♦ 21 hours ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
add a comment |
I'm running ubuntu 14.04 on a Acer E17 laptop. From one to another the computer seems to freeze during the boot sequence. It boots to grub without an issue, but when I select Ubuntu it seems to freeze on a black screen. No indication as to what it's doing or any error code. Normally it would display the word Ubuntu with 5 dots beneath it that change from white to red.
If I boot the recovery boot (of the same kernel) and in recovery immediately hit resume it boots normally and I can login.
I already tried to downgrade some recent updates using synaptic, but that did not help. The next thing I tried is to try to create some boot logs with bootlogd, but /var/log/boot.log remains empty. Does anyone have an idea where to go next?
Edit: after a couple of days /var/log/boot.log and /var/log/boot have some information, but no errors of any kind.
cat /var/log/boot produces this output: http://pastebin.com/FEjBveEG
cat /var/log/boot.log produces this output: http://pastebin.com/iycLg0p0
(formatting is off, no idea why, it isn't in the output)
14.04 boot
edited Jun 15 '16 at 15:47
amc
4,80462746
asked May 3 '15 at 6:28
MartijnMartijn
6115
I'm running ubuntu 14.04 on a Acer E17 laptop. From one to another the computer seems to freeze during the boot sequence. It boots to grub without an issue, but when I select Ubuntu it seems to freeze on a black screen. No indication as to what it's doing or any error code. Normally it would display the word Ubuntu with 5 dots beneath it that change from white to red.
If I boot the recovery boot (of the same kernel) and in recovery immediately hit resume it boots normally and I can login.
I already tried to downgrade some recent updates using synaptic, but that did not help. The next thing I tried is to try to create some boot logs with bootlogd, but /var/log/boot.log remains empty. Does anyone have an idea where to go next?
Edit: after a couple of days /var/log/boot.log and /var/log/boot have some information, but no errors of any kind.
cat /var/log/boot produces this output: http://pastebin.com/FEjBveEG
cat /var/log/boot.log produces this output: http://pastebin.com/iycLg0p0
(formatting is off, no idea why, it isn't in the output)
14.04 boot
14.04 boot
edited Jun 15 '16 at 15:47
amc
4,80462746
asked May 3 '15 at 6:28
MartijnMartijn
6115
edited Jun 15 '16 at 15:47
amc
4,80462746
asked May 3 '15 at 6:28
MartijnMartijn
6115
edited Jun 15 '16 at 15:47
amc
4,80462746
edited Jun 15 '16 at 15:47
amc
4,80462746
edited Jun 15 '16 at 15:47
amc
4,80462746
4,80462746
asked May 3 '15 at 6:28
MartijnMartijn
6115
asked May 3 '15 at 6:28
MartijnMartijn
6115
asked May 3 '15 at 6:28
MartijnMartijn
6115
6115
bumped to the homepage by Community♦ 21 hours ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
bumped to the homepage by Community♦ 21 hours ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
Ubuntu actually waits for all the essential drivers and environment application to load before log you in. In my case, I intended to overwrite the default (lightdm unity) with gnome-shell, bit it failed and the boot sequence was waiting infinitely for it to run. So I need to rollback my changes but there isn't much i can do since I cant actually get myself to terminal (the "shift" + boot didn't work).
Here's what I did to resolve the issue:
- Plugged in my usb bootable ubuntu and ran trial version.
- Browsed through the bootdrive and edited
/etc/X11/default-display-manager. - It didn't allow me to write so I assigned writable permission to it
withsudo chmod 777 /etc/X11/ -R. - Then I changed the line
/usr/sbin/gdmto/usr/sbin/lightdmand the rebooted. By doing this I rolled back the changed from gnome-shell to lightdm, and I saved myself from reinstalling the system.
answered Jun 15 '16 at 14:54
Ry VanRy Van
111
you don't need to change the permissions in step 3 -- simply usesudowith your editor to edit the file. this will avoid any future problems caused by incorrect permissions.
– amc
Jun 15 '16 at 15:45
yea ,i would have but i dont know why,the changes i made with sudo nano never been updated..so i just went to more obvious way of doing it.
– Ry Van
Jun 15 '16 at 17:05
add a comment |
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1 Answer
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1 Answer
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active
oldest
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active
oldest
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votes
Ubuntu actually waits for all the essential drivers and environment application to load before log you in. In my case, I intended to overwrite the default (lightdm unity) with gnome-shell, bit it failed and the boot sequence was waiting infinitely for it to run. So I need to rollback my changes but there isn't much i can do since I cant actually get myself to terminal (the "shift" + boot didn't work).
Here's what I did to resolve the issue:
- Plugged in my usb bootable ubuntu and ran trial version.
- Browsed through the bootdrive and edited
/etc/X11/default-display-manager. - It didn't allow me to write so I assigned writable permission to it
withsudo chmod 777 /etc/X11/ -R. - Then I changed the line
/usr/sbin/gdmto/usr/sbin/lightdmand the rebooted. By doing this I rolled back the changed from gnome-shell to lightdm, and I saved myself from reinstalling the system.
answered Jun 15 '16 at 14:54
Ry VanRy Van
111
you don't need to change the permissions in step 3 -- simply usesudowith your editor to edit the file. this will avoid any future problems caused by incorrect permissions.
– amc
Jun 15 '16 at 15:45
yea ,i would have but i dont know why,the changes i made with sudo nano never been updated..so i just went to more obvious way of doing it.
– Ry Van
Jun 15 '16 at 17:05
add a comment |
Ubuntu actually waits for all the essential drivers and environment application to load before log you in. In my case, I intended to overwrite the default (lightdm unity) with gnome-shell, bit it failed and the boot sequence was waiting infinitely for it to run. So I need to rollback my changes but there isn't much i can do since I cant actually get myself to terminal (the "shift" + boot didn't work).
Here's what I did to resolve the issue:
- Plugged in my usb bootable ubuntu and ran trial version.
- Browsed through the bootdrive and edited
/etc/X11/default-display-manager. - It didn't allow me to write so I assigned writable permission to it
withsudo chmod 777 /etc/X11/ -R. - Then I changed the line
/usr/sbin/gdmto/usr/sbin/lightdmand the rebooted. By doing this I rolled back the changed from gnome-shell to lightdm, and I saved myself from reinstalling the system.
answered Jun 15 '16 at 14:54
Ry VanRy Van
111
you don't need to change the permissions in step 3 -- simply usesudowith your editor to edit the file. this will avoid any future problems caused by incorrect permissions.
– amc
Jun 15 '16 at 15:45
yea ,i would have but i dont know why,the changes i made with sudo nano never been updated..so i just went to more obvious way of doing it.
– Ry Van
Jun 15 '16 at 17:05
add a comment |
Ubuntu actually waits for all the essential drivers and environment application to load before log you in. In my case, I intended to overwrite the default (lightdm unity) with gnome-shell, bit it failed and the boot sequence was waiting infinitely for it to run. So I need to rollback my changes but there isn't much i can do since I cant actually get myself to terminal (the "shift" + boot didn't work).
Here's what I did to resolve the issue:
- Plugged in my usb bootable ubuntu and ran trial version.
- Browsed through the bootdrive and edited
/etc/X11/default-display-manager. - It didn't allow me to write so I assigned writable permission to it
withsudo chmod 777 /etc/X11/ -R. - Then I changed the line
/usr/sbin/gdmto/usr/sbin/lightdmand the rebooted. By doing this I rolled back the changed from gnome-shell to lightdm, and I saved myself from reinstalling the system.
answered Jun 15 '16 at 14:54
Ry VanRy Van
111
Ubuntu actually waits for all the essential drivers and environment application to load before log you in. In my case, I intended to overwrite the default (lightdm unity) with gnome-shell, bit it failed and the boot sequence was waiting infinitely for it to run. So I need to rollback my changes but there isn't much i can do since I cant actually get myself to terminal (the "shift" + boot didn't work).
Here's what I did to resolve the issue:
- Plugged in my usb bootable ubuntu and ran trial version.
- Browsed through the bootdrive and edited
/etc/X11/default-display-manager. - It didn't allow me to write so I assigned writable permission to it
withsudo chmod 777 /etc/X11/ -R. - Then I changed the line
/usr/sbin/gdmto/usr/sbin/lightdmand the rebooted. By doing this I rolled back the changed from gnome-shell to lightdm, and I saved myself from reinstalling the system.
answered Jun 15 '16 at 14:54
Ry VanRy Van
111
edited Jun 15 '16 at 17:07
answered Jun 15 '16 at 14:54
Ry VanRy Van
111
answered Jun 15 '16 at 14:54
Ry VanRy Van
111
answered Jun 15 '16 at 14:54
Ry VanRy Van
111
111
you don't need to change the permissions in step 3 -- simply usesudowith your editor to edit the file. this will avoid any future problems caused by incorrect permissions.
– amc
Jun 15 '16 at 15:45
yea ,i would have but i dont know why,the changes i made with sudo nano never been updated..so i just went to more obvious way of doing it.
– Ry Van
Jun 15 '16 at 17:05
add a comment |
you don't need to change the permissions in step 3 -- simply usesudowith your editor to edit the file. this will avoid any future problems caused by incorrect permissions.
– amc
Jun 15 '16 at 15:45
yea ,i would have but i dont know why,the changes i made with sudo nano never been updated..so i just went to more obvious way of doing it.
– Ry Van
Jun 15 '16 at 17:05
you don't need to change the permissions in step 3 -- simply use
sudo with your editor to edit the file. this will avoid any future problems caused by incorrect permissions.– amc
Jun 15 '16 at 15:45
you don't need to change the permissions in step 3 -- simply use
sudo with your editor to edit the file. this will avoid any future problems caused by incorrect permissions.– amc
Jun 15 '16 at 15:45
yea ,i would have but i dont know why,the changes i made with sudo nano never been updated..so i just went to more obvious way of doing it.
– Ry Van
Jun 15 '16 at 17:05
yea ,i would have but i dont know why,the changes i made with sudo nano never been updated..so i just went to more obvious way of doing it.
– Ry Van
Jun 15 '16 at 17:05
add a comment |
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