DSM-G600, DNS-3xx and NSA-220 Hack Forum

jayas · 2008-02-05 03:46:11

Hello,

I put in two ST3500630AS (500GB SATA 3.0Gb/s 16MB) disks in a DNS-323 that came with 1.02 firmware and formatted it as RAID1. I then upgraded to 1.04 did e2fsck immediately thereafter, I got errors as per transcript below.

I am not conversant with ext2 file system and would appreciate comments from anyone as to how serious are these errors. How can I format clean? What kind of problems would have arisen had I not done e2fsck?

Kind regards,

Jaya

Code:

e2fsck 1.32 (09-Nov-2002)
sh: badblocks: not found
Pass 1: Checking inodes, blocks, and sizes
Inode 15220749, i_blocks is 64, should be 24.  Fix<y>? yes

Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
/lost+found not found.  Pass 4: Checking reference counts
Pass 5: Checking group summary information
Block bitmap differences:  -(30459916--30459920)
Fix<y>? yes

Free blocks count wrong for group #929 (32234, counted=32239).
Fix<y>? yes
  
/dev/md0: ***** FILE SYSTEM WAS MODIFIED *****
ERROR~ #

frodo · 2008-02-05 10:50:51

Did you execute this from a telnet shell? Did you unmount the filesystem first? Never run e2fsck on a mounted filesystem!!

jayas · 2008-02-05 11:47:32

Hi Frodo,

frodo wrote:
Did you execute this from a telnet shell? Did you unmount the filesystem first?

Yes and yes.

I am more interested in what the specific errors mean and possible consequences if I had not fixed them.

Jaya

HaydnH · 2008-02-05 12:58:16

jayas wrote:
I am more interested in what the specific errors mean and possible consequences if I had not fixed them.

These might not even be errors - because you've run fsck on a live filesystem, you may just see errors due to the filesystem changing while being fsck'ed. As Gandalf once said - Listen to Frodo...

jayas · 2008-02-05 13:42:31

HaydnH wrote:
jayas wrote:
I am more interested in what the specific errors mean and possible consequences if I had not fixed them.
These might not even be errors - because you've run fsck on a live filesystem, you may just see errors due to the filesystem changing while being fsck'ed. As Gandalf once said - Listen to Frodo...

Hi HaydnH,

If you read my response to Frodo, I answered his question "Yes and yes". This means I am using telnet and yes it was done with unmounted file system.

My question really is if anyone here knows enough to tell me specifically what the error is in relation to ext file system. Saves me having to negotiate ext2 file system documentation.

Kind regards,

Jaya

sjmac · 2008-02-05 14:29:48

Me too ...

What's your disk configuration? Did you do this on both disks?

I formatted two standard disks after upgrading to 1.04, but got a "94%" error at the end of the format. After a reboot everything seemed fine, but I thought I'd run e2fsck to see. /mnt/HD_b2 unmounted fine and the e2fsck ran and told me it had fixed something (I didn't have the sense to save the output, but it was a similar number of lines as yours).

I couldn't unmount HD_a2 and e2fsck warned me that it would be unwise to run, so I didn't. Did you get the same errors on both disks?

Is it OK to unmount HD_a2? Did you have to do anything special? I noticed that it seemed to have some hidden system folders (with names starting with .)

frodo · 2008-02-05 22:36:37

jayas wrote:
HaydnH wrote:
jayas wrote:
I am more interested in what the specific errors mean and possible consequences if I had not fixed them.
These might not even be errors - because you've run fsck on a live filesystem, you may just see errors due to the filesystem changing while being fsck'ed. As Gandalf once said - Listen to Frodo...
Hi HaydnH,

If you read my response to Frodo, I answered his question "Yes and yes". This means I am using telnet and yes it was done with unmounted file system.

My question really is if anyone here knows enough to tell me specifically what the error is in relation to ext file system. Saves me having to negotiate ext2 file system documentation.

Kind regards,

Jaya

How did you manage to unmount /dev/md0? Isn't your fun_plug installed on it?

MiK · 2008-02-06 01:43:25

I would try this http://www.inreto.de/dns323/fsck/

jayas · 2008-02-06 01:48:57

Hi Frodo,

frodo wrote:
How did you manage to unmount /dev/md0? Isn't your fun_plug installed on it?

My telnet is installed on ramdisk to allow unmounting. I telnet, stop smb and unmount /dev/md0 before doing e2fsck.

Jaya

Edit: added fun_plug installation script

Code:

#!/bin/sh

# manifests
root=/home/root
disk=/mnt/HD_a2/fun_path
logs=/mnt/HD_a2/fun_logs
export PATH=.:$PATH

# switch to disk path
cd $disk
{
    # boot timestamp
    busybox date

    # execution trace
    set -x

    # install files
    busybox cp busybox $root
    busybox cp telnetd $root
    busybox cp profile $root/.profile

    # replace shell
    busybox mv -f /bin/sh /bin/sh.old
    busybox ln -s $root/busybox /bin/sh

    # establish console
    busybox mknod /dev/ptyp0 c 2 0
    busybox chmod 0666 /dev/ptyp0
    busybox mknod /dev/ttyp0 c 3 0
    busybox chmod 0666 /dev/ttyp0 

} >$logs 2>&1

# switch to root path
cd $root

# restrict telnet users
busybox cp /etc/passwd passwd
busybox sed -e '2,$s|:/home/.*|:/:/bin/sync|' passwd >/etc/passwd
busybox rm -f passwd
busybox echo "/etc/passwd updated" >>$logs

# clone admin password
busybox sed -n -e 's|^admin:|root:|p' /etc/shadow >>/etc/shadow
busybox echo "/etc/shadow updated" >>$logs

# start telnet daemon
telnetd -l /bin/login -d
busybox echo "telnet daemon started" >>$logs

Last edited by jayas (2008-02-06 01:54:25)

DSM-G600, DNS-3xx and NSA-220 Hack Forum

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#1 2008-02-05 03:46:11

re: e2fsck errors after first format

Code:

#2 2008-02-05 10:50:51

Re: re: e2fsck errors after first format

#3 2008-02-05 11:47:32

Re: re: e2fsck errors after first format

frodo wrote:

#4 2008-02-05 12:58:16

Re: re: e2fsck errors after first format

jayas wrote:

#5 2008-02-05 13:42:31

Re: re: e2fsck errors after first format

HaydnH wrote:

jayas wrote:

#6 2008-02-05 14:29:48

Re: re: e2fsck errors after first format

#7 2008-02-05 22:36:37

Re: re: e2fsck errors after first format

jayas wrote:

HaydnH wrote:

jayas wrote:

#8 2008-02-06 01:43:25

Re: re: e2fsck errors after first format

#9 2008-02-06 01:48:57

Re: re: e2fsck errors after first format

frodo wrote:

Code:

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