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How to avoid “can't access tty; job control turned off” when boot to initramfs
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i'm testing my custom initramfs now, but everytime the log there will have the
"can't access tty; job control turned off".
The /dev in initramfs has four files: null, sda1, ttyS0.
The kernel parameter is 'console=ttyS0'.
Also, i test ctrl+c, it works fine.So how could this problem heppen?
In busybox documentation,
Why do I keep getting "sh: can't access tty; job control turned off"
errors? Why doesn't Control-C work within my shell? This isn't really
a uClibc question, but I'll answer it here anyways. Job control will
be turned off since your shell can not obtain a controlling terminal.
This typically happens when you run your shell on /dev/console. The
kernel will not provide a controlling terminal on the /dev/console
device. Your should run your shell on a normal tty such as tty1 or
ttyS0 and everything will work perfectly. If you REALLY want your
shell to run on /dev/console, then you can hack your kernel (if you
are into that sortof thing) by changing drivers/char/tty_io.c to
change the lines where it sets "noctty = 1;" to instead set it to "0".
I recommend you instead run your shell on a real console...
I type tty and it gives me /dev/console instead of /dev/ttyS0.
So, that's all information about this problem, hope some one can help me out:-)
console busybox initramfs
asked 21 mins ago
ObsessiveObsessive
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Obsessive is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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add a comment |
i'm testing my custom initramfs now, but everytime the log there will have the
"can't access tty; job control turned off".
The /dev in initramfs has four files: null, sda1, ttyS0.
The kernel parameter is 'console=ttyS0'.
Also, i test ctrl+c, it works fine.So how could this problem heppen?
In busybox documentation,
Why do I keep getting "sh: can't access tty; job control turned off"
errors? Why doesn't Control-C work within my shell? This isn't really
a uClibc question, but I'll answer it here anyways. Job control will
be turned off since your shell can not obtain a controlling terminal.
This typically happens when you run your shell on /dev/console. The
kernel will not provide a controlling terminal on the /dev/console
device. Your should run your shell on a normal tty such as tty1 or
ttyS0 and everything will work perfectly. If you REALLY want your
shell to run on /dev/console, then you can hack your kernel (if you
are into that sortof thing) by changing drivers/char/tty_io.c to
change the lines where it sets "noctty = 1;" to instead set it to "0".
I recommend you instead run your shell on a real console...
I type tty and it gives me /dev/console instead of /dev/ttyS0.
So, that's all information about this problem, hope some one can help me out:-)
console busybox initramfs
asked 21 mins ago
ObsessiveObsessive
11 bronze badge
New contributor
Obsessive is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
i'm testing my custom initramfs now, but everytime the log there will have the
"can't access tty; job control turned off".
The /dev in initramfs has four files: null, sda1, ttyS0.
The kernel parameter is 'console=ttyS0'.
Also, i test ctrl+c, it works fine.So how could this problem heppen?
In busybox documentation,
Why do I keep getting "sh: can't access tty; job control turned off"
errors? Why doesn't Control-C work within my shell? This isn't really
a uClibc question, but I'll answer it here anyways. Job control will
be turned off since your shell can not obtain a controlling terminal.
This typically happens when you run your shell on /dev/console. The
kernel will not provide a controlling terminal on the /dev/console
device. Your should run your shell on a normal tty such as tty1 or
ttyS0 and everything will work perfectly. If you REALLY want your
shell to run on /dev/console, then you can hack your kernel (if you
are into that sortof thing) by changing drivers/char/tty_io.c to
change the lines where it sets "noctty = 1;" to instead set it to "0".
I recommend you instead run your shell on a real console...
I type tty and it gives me /dev/console instead of /dev/ttyS0.
So, that's all information about this problem, hope some one can help me out:-)
console busybox initramfs
asked 21 mins ago
ObsessiveObsessive
11 bronze badge
New contributor
Obsessive is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
i'm testing my custom initramfs now, but everytime the log there will have the
"can't access tty; job control turned off".
The /dev in initramfs has four files: null, sda1, ttyS0.
The kernel parameter is 'console=ttyS0'.
Also, i test ctrl+c, it works fine.So how could this problem heppen?
In busybox documentation,
Why do I keep getting "sh: can't access tty; job control turned off"
errors? Why doesn't Control-C work within my shell? This isn't really
a uClibc question, but I'll answer it here anyways. Job control will
be turned off since your shell can not obtain a controlling terminal.
This typically happens when you run your shell on /dev/console. The
kernel will not provide a controlling terminal on the /dev/console
device. Your should run your shell on a normal tty such as tty1 or
ttyS0 and everything will work perfectly. If you REALLY want your
shell to run on /dev/console, then you can hack your kernel (if you
are into that sortof thing) by changing drivers/char/tty_io.c to
change the lines where it sets "noctty = 1;" to instead set it to "0".
I recommend you instead run your shell on a real console...
I type tty and it gives me /dev/console instead of /dev/ttyS0.
So, that's all information about this problem, hope some one can help me out:-)
console busybox initramfs
console busybox initramfs
asked 21 mins ago
ObsessiveObsessive
11 bronze badge
New contributor
Obsessive is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 21 mins ago
ObsessiveObsessive
11 bronze badge
New contributor
Obsessive is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 21 mins ago
ObsessiveObsessive
11 bronze badge
New contributor
Obsessive is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 21 mins ago
ObsessiveObsessive
11 bronze badge
asked 21 mins ago
ObsessiveObsessive
11 bronze badge
11 bronze badge
New contributor
Obsessive is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Obsessive is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
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