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Old 15th December 2010
IronForge IronForge is offline
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Default Xtracting Data after Fragmentation / Block Count / Partition Problems on Boot

Greetings:

Another fine mess I found myself intrigued with.

I've had my OpenBSD on an older box for some time; and have upgraded/updated/snapshotted several times.

During the last few installs (snapshot + xfce4), my mouse would freeze on occasion, while working with a browser (FF, Epiphany and Midori). Reading from the other posts (regarding security), I've taken the practice of "resetting the always on modem".

Having the machine freeze forces a manual reset/reboot of the machine. I get the fragmentation notices during the reboot. Since the frequency of the 'freezing" increased, I was about to do a backup and reinstall from another snapshot, when I was notified that
the "/dev/rwd0k (which is /home) had the following output displayed:

1) Incorrect block count (corrected)
2) Partially truncated INODE (I=######)
3) Unexpected Inconsistency, try fsck_ffs
4) "Automatic File System Check failed, Help!", with options to enter a shell directory or pressing <ENTER> for sh:

Since I needed to compile a report for a court hearing very soon - and "home" being the only directory afflicted, other unexplained phenomenon need to be addressed.

There are other peculiar actions going on. For instance, while I was working late at night and noticed the hard drive get very busy for awhile (I was using a browser), I raised "top" on the terminal. I noticed a "find" function being run by root (I wasn't logged in as root; and I'm the only user for this box), which disappeared while I was trying to raise the system monitor app. The "find" app/process wasn't available on both process listings (should be available for a bit, since some history is retained post usage).

Q1 - on "find as root": If this were a background process by the OS, should it be run by "system"? Could this be a hack job?

Q2: Any way I can mount /dev/rwd0k (/home) with its "inconsistencies" and backup the files so I can do a reinstall?

Thanks
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Old 15th December 2010
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rocket357 rocket357 is offline
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Default

Quote:
Originally Posted by IronForge View Post
4) "Automatic File System Check failed, Help!", with options to enter a shell directory or pressing <ENTER> for sh:
If the automatic file system check failed, it's asking you to run a manual file system check, i.e. 'fsck /dev/<whatever>'

Quote:
Originally Posted by IronForge View Post
There are other peculiar actions going on. For instance, while I was working late at night and noticed the hard drive get very busy for awhile (I was using a browser), I raised "top" on the terminal. I noticed a "find" function being run by root
Code:
# grep -C "find" /etc/{daily,weekly,monthly}
/etc/daily-if [ -d /tmp -a ! -L /tmp ]; then
/etc/daily-     cd /tmp && {
/etc/daily:     find -x . \
/etc/daily-         \( -path './ssh-*' -o -path ./.X11-unix -o -path ./.ICE-unix \
/etc/daily-             -o -path ./portslocks \) \
/etc/daily-         -prune -o -type f -atime +3 -execdir rm -f -- {} \;
/etc/daily:     find -x . -type d -mtime +1 ! -path ./vi.recover ! -path ./.X11-unix \
/etc/daily-         ! -path ./.ICE-unix ! -path ./portslocks ! -name . \
/etc/daily-         -execdir rmdir -- {} \; >/dev/null 2>&1; }
--
/etc/daily-if [ -d /var/tmp -a ! -L /var/tmp ]; then
/etc/daily-     cd /var/tmp && {
/etc/daily:     find -x . \
/etc/daily-         \( -path './ssh-*' -o -path ./.X11-unix -o -path ./.ICE-unix \
/etc/daily-             -o -path ./portslocks \) \
/etc/daily-         -prune -o ! -type d -atime +7 -execdir rm -f -- {} \;
/etc/daily:     find -x . -type d -mtime +1 ! -path ./vi.recover ! -path ./.X11-unix \
/etc/daily-         ! -path ./.ICE-unix ! -path ./portslocks ! -name . \
/etc/daily-         -execdir rmdir -- {} \; >/dev/null 2>&1; }
--
/etc/daily-if [ -d /var/rwho -a ! -L /var/rwho ] ; then
/etc/daily-     cd /var/rwho && {
/etc/daily:     find . ! -name . -mtime +7 -execdir rm -f -- {} \; ; }
/etc/daily-fi
/etc/daily-
This is cleanup code that gets run each night as root:

Code:
# crontab -l | grep daily
# do daily/weekly/monthly maintenance
30      1       *       *       *       /bin/sh /etc/daily

Last edited by rocket357; 15th December 2010 at 10:55 PM.
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Old 15th December 2010
IronForge IronForge is offline
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I'll give it a shot.
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Old 16th December 2010
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jggimi jggimi is offline
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STOP!!

Don't fsck that partition until you've backed it up! You are likely to lose data on your way to making it mountable read/write.

You can force mount it in read/only mode un-fscked, and dump(8) it somewhere. Or you can dd(1) the raw device to a file.
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