[root@harkum rut]# pwd
/home/rut
[root@harkum rut]# mount -o loop,ro,offset=512 ./kasa.img /mnt
[root@harkum rut]# ls -al /mnt
total 2007
drwxr-xr-x.  3 root root    1024 Jul  6  2011 .
dr-xr-xr-x. 26 root root    4096 Nov  5 19:58 ..
-rw-r--r--.  1 root root 2039376 Dec 10  2010 bzImage
drwxr-xr-x.  2 root root    1024 Jul  6  2011 grub
[root@harkum rut]# umount /mnt
[root@harkum rut]# mount -o loop,ro,offset=3612672 ./kasa.img /mnt
[root@harkum rut]# ls -al /mnt
total 73
drwxr-xr-x. 19 root      root       1024 Nov  5 17:41 .
dr-xr-xr-x. 26 root      root       4096 Nov  5 19:58 ..
-rw-r--r--.  1 root      root       6265 Nov  5 17:45 asound.state
-rw-r--r--.  1 root      root          0 Nov  5 17:42 auto.smb
drwxr-xr-x.  3 nfsnobody nfsnobody  1024 Jul  6  2011 cacerts
drwxr-xr-x.  8 root      lp         1024 Nov  5 17:42 cups
-rw-r--r--.  1 root      root        794 Nov  5 17:45 dhclient.leases
drwxr-xr-x.  9 nfsnobody nfsnobody  1024 Nov  5 17:43 elux
-rw-r--r--.  1 root      root          0 Apr 23  2012 environment.ini
drwxr-xr-x.  4 root      root       1024 Jul  6  2011 gconf
drwxr-xr-x.  3 root      root       1024 Jul  6  2011 hal
-rw-r--r--.  1 nfsnobody nfsnobody     0 Apr 23  2012 hosts
drwxr-xr-x.  2 nfsnobody nfsnobody  1024 Jul  7  2011 ica
drwxr-xr-x.  5 root      root       1024 Jul  6  2011 icons
lrwxrwxrwx.  1 root      root         19 Jul  6  2011 IDCLCM -> /setup/elux/.idclcm
lrwxrwxrwx.  1 root      root         24 Nov  5 17:41 localtime -> /tmp/.zone/Europe/Berlin
drwx------.  2 root      root      12288 Jul  6  2011 lost+found
drwxr-xr-x.  2 root      root       1024 Apr 18  2012 ntp
drwxr-xr-x.  2 root      root       1024 Jul  6  2011 pam.d
drwxr-xr-x.  2 root      root       1024 Jul  6  2011 pcsc
drwxr-xr-x.  2 root      root       1024 Jul  6  2011 pkcs11_login
-rw-r--r--.  1 nfsnobody nfsnobody   306 Apr 23  2012 profiles.ini
drwxr-xr-x.  2 nfsnobody nfsnobody  1024 Jul  6  2011 public
lrwxrwxrwx.  1 root      root         21 Jul  6  2011 rdesktop -> /setup/elux/.rdesktop
lrwxrwxrwx.  1 root      root         23 Jul  6  2011 rdpconnect -> /setup/elux/.rdpconnect
-rw-r--r--.  1 nfsnobody nfsnobody  1116 Nov 24  2011 __RL__.ini
-rw-r--r--.  1 root      root      18867 Apr 23  2012 sessions.ini
drwxr-xr-x.  3 root      root       1024 Jul  6  2011 share
-rw-r--r--.  1 root      root       8850 Nov  5 17:43 terminal.ini
drwxr-xr-x.  2 root      root       1024 Jul  6  2011 userauth
lrwxrwxrwx.  1 root      root         17 Jul  6  2011 wlan -> /setup/elux/.wlan
drwxr-xr-x.  2 root      root       1024 Jul  6  2011 X11
drwxr-xr-x.  3 root      root       1024 Jul  6  2011 xscreensaver
lrwxrwxrwx.  1 root      root         24 Jul  6  2011 xsupplicant -> /setup/elux/.xsupplicant
[root@harkum rut]# umount /mnt
[root@harkum rut]# mount -o loop,ro,offset=6193152 ./kasa.img /mnt
mount: wrong fs type, bad option, bad superblock on /dev/loop0,
       missing codepage or helper program, or other error
       In some cases useful info is found in syslog - try
       dmesg | tail  or so

[root@harkum rut]# tail -f /var/log/messages
Nov  5 20:20:48 harkum rsyslogd: [origin software="rsyslogd" swVersion="5.8.10" x-pid="11581" x-info="http://www.rsyslog.com"] start
Nov  5 20:21:12 harkum pcscd: pcscdaemon.c:581:signal_trap() Preparing for suicide
Nov  5 20:21:13 harkum pcscd: readerfactory.c:1267:RFCleanupReaders() entering cleaning function
Nov  5 20:21:13 harkum pcscd: pcscdaemon.c:531:at_exit() cleaning /var/run
Nov  5 20:21:13 harkum pcscd: pcscdaemon.c:506:main() pcsc-lite 1.5.2 daemon ready.
Nov  5 20:23:25 harkum abrtd: Got signal 15, exiting
Nov  5 20:23:25 harkum abrtd: Init complete, entering main loop
Nov  5 20:45:53 harkum kernel: EXT4-fs (loop0): Couldn't mount because of unsupported optional features (1)
Nov  5 20:46:08 harkum kernel: EXT4-fs (loop0): Couldn't mount because of unsupported optional features (1)
Nov  5 20:54:25 harkum kernel: EXT4-fs (loop0): Couldn't mount because of unsupported optional features (1)
^C
[root@harkum rut]#