Couldn't write '4 4 1 7' to 'kernel/printk'

[tony blue]

Hello,

I have installed a new Ubuntu 14.04 LTS LXC containter. After boot I got this messages in /var/log/syslog:

Jan 19 10:56:23 Ubuntu-14 systemd-sysctl[45]: Couldn't write '4 4 1 7' to 'kernel/printk', ignoring: Rea
d-only file system
Jan 19 10:56:23 Ubuntu-14 systemd-sysctl[45]: Couldn't write '1' to 'kernel/kptr_restrict', ignoring: Re
ad-only file system
Jan 19 10:56:23 Ubuntu-14 systemd-sysctl[45]: Couldn't write '1' to 'fs/protected_hardlinks', ignoring:
Read-only file system
Jan 19 10:56:23 Ubuntu-14 systemd-sysctl[45]: Couldn't write '1' to 'fs/protected_symlinks', ignoring: R
ead-only file system
Jan 19 10:56:23 Ubuntu-14 systemd-sysctl[45]: Couldn't write '176' to 'kernel/sysrq', ignoring: Read-onl
y file system
Jan 19 10:56:23 Ubuntu-14 systemd-sysctl[45]: Couldn't write '1' to 'kernel/yama/ptrace_scope', ignoring
: Read-only file system
Jan 19 10:56:23 Ubuntu-14 systemd-sysctl[45]: Couldn't write '65536' to 'vm/mmap_min_addr', ignoring: Re
ad-only file system
Jan 19 10:56:23 Ubuntu-14 systemd-sysctl[45]: Couldn't write 'fq_codel' to 'net/core/default_qdisc', ign
oring: No such file or directory
Jan 19 10:56:23 Ubuntu-14 systemd[1]: systemd-journal-flush.service: Failed to reset devices.list: Opera
tion not permitted

What does it mean?

How can I fix it?

Thank you!

Tony

 

[LnxBil]

What does it mean?

that you cannot write kernel settings, because you don't have a kernel in an LX(C) container.

How can I fix it?

You can't. If you're bothered by the messages, just edit the /etc/sysctl.conf and remove all the settings that cannot be changed.