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boot logging: /var/log/rc.log on read-only filesystem
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jeffk
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Joined: 13 Sep 2003
Posts: 587

PostPosted: Sat Dec 03, 2011 4:35 am    Post subject: boot logging: /var/log/rc.log on read-only filesystem Reply with quote

I would like to get a closer look at some of the info scrolling by during boot service init. I enabled rc boot logging:
Code:
$ grep log /etc/rc.conf
# Linux users could specify /sbin/sulogin
rc_shell=/sbin/sulogin
# rc_logger launches a logging daemon to log the entire rc process to
# /var/log/rc.log
# logging can take place and as such cannot log the sysinit runlevel.
rc_logger="YES"
# Through rc_log_path you can specify a custom log file.
# The default value is: /var/log/rc.log
#rc_log_path="/var/log/rc.log"

Code:
$ ls -al /var/log/rc.log
-rw-r--r-- 1 root root 56625 Dec  2 19:37 /var/log/rc.log

But /var/log/rc.log is on a read-only filesystem at boot, and logs nothing signficant before
Code:
rc default logging started at Fri Dec  2 19:37:17 2011

 * Use of the opts variable is deprecated and will be
 * removed in the future.
 * Please use extra_commands or extra_started_commands.
 * Starting FireHOL ...

WARNING
File '/etc/firehol/RESERVED_IPS' is more than 90 days old.
You should update it to ensure proper operation of your firewall.

Run the supplied get-iana.sh script to generate this file.

 [ ok ]
 * Starting syslog-ng ...
 [ ok ]
 * Starting unbound ...
[1322883438] unbound[4064:0] warning: increased limit(open files) from 1024 to 4152
 [ ok ]
 * Mounting network filesystems ...
 [ ok ]
 * Use of the opts variable is deprecated and will be
 * removed in the future.
 * Please use extra_commands or extra_started_commands.
 * Checking nginx' configuration ...
 [ ok ]
 * Starting nginx ...
 [ ok ]
 * Starting ntpd ...
 [ ok ]
 * Use of the opts variable is deprecated and will be
 * removed in the future.
 * Please use extra_commands or extra_started_commands.
 * Starting PostgreSQL ...
 [ ok ]
 * Use of the opts variable is deprecated and will be
 * removed in the future.
 * Please use extra_commands or extra_started_commands.
 * Starting sshd ...
 [ ok ]
 * Doing udev cleanups
 * Starting vixie-cron ...
 [ ok ]
 * Starting wicd daemon ...
 [ ok ]
 * Starting local
 [ ok ]

rc default logging stopped at Fri Dec  2 19:37:21 2011

Using an fstab of:
Code:
$ cat /etc/fstab
# <fs>                  <mountpoint>    <type>          <opts>          <dump/pass>
/dev/sda1               /               ext4            noatime,nobh,data=writeback,nouser_xattr                0 1
/dev/cdrom              /mnt/cdrom      auto            noauto,ro               0 0
shm                     /dev/shm        tmpfs           nodev,nosuid,noexec     0 0
/swapfile1              swap            swap            defaults                0 0

Is this as good as it's going to get for early boot activity logging? If so, how do I at least turn off that warning message that scrolls by about the rc.log on a read-only filestem?

Thanks.
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poncho
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Joined: 06 Mar 2011
Posts: 58

PostPosted: Sat Dec 03, 2011 9:11 am    Post subject: Reply with quote

Bug 390645 - sys-apps/openrc: /var/log/rc.log is written before fsck/localmount
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