Peter_APIIT wrote:

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> Hello all expect openbsd user, i have encountered this incident before where

> previously i can solve it easily but not this time.

>

>

> My openbsd is running for 24 X 7 but my mother going off the power and i

> didn't know about that for few times. After that, file is not properly

> unmount.

>

> OpeBSD asked me to check fschk_ffs manually but i cannot read man pages

> anymore but before i can. It just stop scrolling at 13%. 

man pages are available on-line, see front page of website.
> Enter shell path name or return to sh : I press enter

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> Terminal type ? i enter tty220 

what did you do to change that?  It should prompt you with a

default thatworks.
> Return me unknow terminal type, i tried it with tty00 and others No use.

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> Then i ctrl + c to force it to terminal. 

you can't type random things there, at least the wrong random things.

Assuming it is an i386 or amd64 with a monitor attached, it would

be "vt220"
> After that, i try ffschk_ffs and ffschk but still cannot solve it. 
(no error message, but we can pretty well guess what it would be)
AGAIN, typing random stuff isn't how you solve computer problems.

The command is "fsck" or "fsck_ffs" (either will work), and that

command was told to you in the error message (which was probably

scrolled off the screen due to your bumbling the terminal type

question).
> OpenBSD drop me to single user and kernel security level is .

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>

> I think is just for read and not for write.

>

> I need your help.

>

> Your help is greatly appreciated by me and others.

>

> A billion thanks for your help. 

If things are really messed up, you may prefer (or need) to boot

from bsd.rd, either from your disk or from a CD or floppy, then

fsck all your partitions.
Easiest way to proceed would be to look at the error message you

get at boot, it will be complaining about a particular partition,

let's assume it is /dev/wd0d.  You will enter in the following

command:

   fsck /dev/wd0d

When it finds errors, it will ask you if you want to fix them,

say "y".  If it starts irritating you with how many things it is

asking you to fix, hit "F" (upper case!), and it will just assume

"y" for all remaining questions.
Once this fsck is done, it may ask you if you want to write the

fixes to disk.  If so, DO SO!  Otherwise, you just wasted your

time. :)  (I'm drawing a blank at the moment if OpenBSD is one

of the OSs I've worked with that asks that question).
Now, do a "mount -a".  The system may now report another

partition needs to be cleaned, so repeat the process with the

next partition, and so on, until your system comes up with a

mount -a.  Note, this "mount -a" trick attempts to mount

everything in your /etc/fstab file, so if you booted from

bsd.rd, this doesn't work.  In that case, you need to look at

your disklabel or the etc/fstab file on your disk.
Nick.