Read kernel messages page by page from screan at boot time? The 2019 Stack Overflow Developer Survey Results Are In Announcing the arrival of Valued Associate #679: Cesar Manara Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern)How do I find the boot parameters used by the running kernel?X does not start after removing parameters quiet splashHow do I tell why it takes so long to boot up/login?Hide all kernel boot messages/logging when disabling splash screen Lubuntu 14.04.1How to prevent kernel or any broadcast messages from flooding the TTYs?Upgraded from 14.0 to 16.04. Boot failureUbuntu 17.10, kernel 4.13.0-32 won't bootSlow boot, long kernel load time, due to wrong resume deviceKernel boot output garbled font / litte small boxes [16.04]How to **really** suppress kernel messages during boot?
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Read kernel messages page by page from screan at boot time?
The 2019 Stack Overflow Developer Survey Results Are In
Announcing the arrival of Valued Associate #679: Cesar Manara
Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern)How do I find the boot parameters used by the running kernel?X does not start after removing parameters quiet splashHow do I tell why it takes so long to boot up/login?Hide all kernel boot messages/logging when disabling splash screen Lubuntu 14.04.1How to prevent kernel or any broadcast messages from flooding the TTYs?Upgraded from 14.0 to 16.04. Boot failureUbuntu 17.10, kernel 4.13.0-32 won't bootSlow boot, long kernel load time, due to wrong resume deviceKernel boot output garbled font / litte small boxes [16.04]How to **really** suppress kernel messages during boot?
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How can I read the messages of kernel page by page on the screan at the boot time ?
I know the "dmesg" command or /var/log ... but my box crashes before booting could have finished.
Is there any option of vmlinuz or grub to stop its messages page by page on the screen at boot time?
(I removed the boot parameters of kernel: "quiet splash", so I have a lots of msg on the screan. But the rows run away quickly.)
boot kernel hardware
asked Apr 2 at 12:32
László SzilágyiLászló Szilágyi
1065
add a comment |
How can I read the messages of kernel page by page on the screan at the boot time ?
I know the "dmesg" command or /var/log ... but my box crashes before booting could have finished.
Is there any option of vmlinuz or grub to stop its messages page by page on the screen at boot time?
(I removed the boot parameters of kernel: "quiet splash", so I have a lots of msg on the screan. But the rows run away quickly.)
boot kernel hardware
asked Apr 2 at 12:32
László SzilágyiLászló Szilágyi
1065
1
You might examine the output ofjournalctl -b, which useslessas the pager.
– Charles Green
Apr 10 at 19:38
@CharlesGreen As I see thejournalctlcant help at the boot time, but it very handy after boot.
– László Szilágyi
2 days ago
Quite true - but I find the information before and after the error to be helpful as well, and the screen does scroll by quickly.
– Charles Green
2 days ago
add a comment |
How can I read the messages of kernel page by page on the screan at the boot time ?
I know the "dmesg" command or /var/log ... but my box crashes before booting could have finished.
Is there any option of vmlinuz or grub to stop its messages page by page on the screen at boot time?
(I removed the boot parameters of kernel: "quiet splash", so I have a lots of msg on the screan. But the rows run away quickly.)
boot kernel hardware
asked Apr 2 at 12:32
László SzilágyiLászló Szilágyi
1065
How can I read the messages of kernel page by page on the screan at the boot time ?
I know the "dmesg" command or /var/log ... but my box crashes before booting could have finished.
Is there any option of vmlinuz or grub to stop its messages page by page on the screen at boot time?
(I removed the boot parameters of kernel: "quiet splash", so I have a lots of msg on the screan. But the rows run away quickly.)
boot kernel hardware
boot kernel hardware
asked Apr 2 at 12:32
László SzilágyiLászló Szilágyi
1065
asked Apr 2 at 12:32
László SzilágyiLászló Szilágyi
1065
asked Apr 2 at 12:32
László SzilágyiLászló Szilágyi
1065
asked Apr 2 at 12:32
László SzilágyiLászló Szilágyi
1065
asked Apr 2 at 12:32
László SzilágyiLászló Szilágyi
1065
1065
1
You might examine the output ofjournalctl -b, which useslessas the pager.
– Charles Green
Apr 10 at 19:38
@CharlesGreen As I see thejournalctlcant help at the boot time, but it very handy after boot.
– László Szilágyi
2 days ago
Quite true - but I find the information before and after the error to be helpful as well, and the screen does scroll by quickly.
– Charles Green
2 days ago
add a comment |
1
You might examine the output ofjournalctl -b, which useslessas the pager.
– Charles Green
Apr 10 at 19:38
@CharlesGreen As I see thejournalctlcant help at the boot time, but it very handy after boot.
– László Szilágyi
2 days ago
Quite true - but I find the information before and after the error to be helpful as well, and the screen does scroll by quickly.
– Charles Green
2 days ago
1
1
You might examine the output of
journalctl -b, which uses less as the pager.– Charles Green
Apr 10 at 19:38
You might examine the output of
journalctl -b, which uses less as the pager.– Charles Green
Apr 10 at 19:38
@CharlesGreen As I see the
journalctl cant help at the boot time, but it very handy after boot.– László Szilágyi
2 days ago
@CharlesGreen As I see the
journalctl cant help at the boot time, but it very handy after boot.– László Szilágyi
2 days ago
Quite true - but I find the information before and after the error to be helpful as well, and the screen does scroll by quickly.
– Charles Green
2 days ago
Quite true - but I find the information before and after the error to be helpful as well, and the screen does scroll by quickly.
– Charles Green
2 days ago
add a comment |
1 Answer
1
active
oldest
votes
The "loglevel=4" kernel’s command-line parameter was useful to me in grub menu at start time.
With this option the "warning, notice, info, debug" lots of kernel messages was suppressed on the screen. And only all error type msgs was printed on the screen.
Here are all the kernel's parameter and other loglevel values.
https://www.kernel.org/doc/html/v4.14/admin-guide/kernel-parameters.html
So it was a good workaround for the original question.
answered Apr 10 at 19:26
László SzilágyiLászló Szilágyi
1065
add a comment |
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The "loglevel=4" kernel’s command-line parameter was useful to me in grub menu at start time.
With this option the "warning, notice, info, debug" lots of kernel messages was suppressed on the screen. And only all error type msgs was printed on the screen.
Here are all the kernel's parameter and other loglevel values.
https://www.kernel.org/doc/html/v4.14/admin-guide/kernel-parameters.html
So it was a good workaround for the original question.
answered Apr 10 at 19:26
László SzilágyiLászló Szilágyi
1065
add a comment |
The "loglevel=4" kernel’s command-line parameter was useful to me in grub menu at start time.
With this option the "warning, notice, info, debug" lots of kernel messages was suppressed on the screen. And only all error type msgs was printed on the screen.
Here are all the kernel's parameter and other loglevel values.
https://www.kernel.org/doc/html/v4.14/admin-guide/kernel-parameters.html
So it was a good workaround for the original question.
answered Apr 10 at 19:26
László SzilágyiLászló Szilágyi
1065
add a comment |
The "loglevel=4" kernel’s command-line parameter was useful to me in grub menu at start time.
With this option the "warning, notice, info, debug" lots of kernel messages was suppressed on the screen. And only all error type msgs was printed on the screen.
Here are all the kernel's parameter and other loglevel values.
https://www.kernel.org/doc/html/v4.14/admin-guide/kernel-parameters.html
So it was a good workaround for the original question.
answered Apr 10 at 19:26
László SzilágyiLászló Szilágyi
1065
The "loglevel=4" kernel’s command-line parameter was useful to me in grub menu at start time.
With this option the "warning, notice, info, debug" lots of kernel messages was suppressed on the screen. And only all error type msgs was printed on the screen.
Here are all the kernel's parameter and other loglevel values.
https://www.kernel.org/doc/html/v4.14/admin-guide/kernel-parameters.html
So it was a good workaround for the original question.
answered Apr 10 at 19:26
László SzilágyiLászló Szilágyi
1065
answered Apr 10 at 19:26
László SzilágyiLászló Szilágyi
1065
answered Apr 10 at 19:26
László SzilágyiLászló Szilágyi
1065
answered Apr 10 at 19:26
László SzilágyiLászló Szilágyi
1065
1065
add a comment |
add a comment |
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1
You might examine the output of
journalctl -b, which useslessas the pager.– Charles Green
Apr 10 at 19:38
@CharlesGreen As I see the
journalctlcant help at the boot time, but it very handy after boot.– László Szilágyi
2 days ago
Quite true - but I find the information before and after the error to be helpful as well, and the screen does scroll by quickly.
– Charles Green
2 days ago