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Full Discussion: Access a File as a Device?
Top Forums UNIX for Advanced & Expert Users Access a File as a Device? Post 302609669 by Matt Miller on Tuesday 20th of March 2012 09:27:03 AM
Old 03-20-2012
Quote:
Originally Posted by Peasant
use mount's offset option.
...
parted ... ran against full image (to get information about it)
That sounds promising. So:

Code:
# losetup /dev/loop0 /path/to/dev_sda.17-Mar-2012
# parted /dev/loop0     
...
(parted) p                                                                
Model:  (file)
Disk /dev/loop0: 320GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos

Number  Start   End     Size    Type      File system     Flags
 1      1049kB  16.0GB  16.0GB  primary   ext4            boot
 2      16.0GB  320GB   304GB   extended
 5      16.0GB  80.0GB  64.0GB  logical   ext4
 6      80.0GB  144GB   64.0GB  logical   ext4
 7      144GB   160GB   16.0GB  logical   linux-swap(v1)
 8      160GB   176GB   16.0GB  logical   ext4
 9      176GB   320GB   144GB   logical   ext4

Now, I guess I just can't get the offset right. Trying to mount partition number 5:

Code:
# losetup -o 16GB /dev/loop1 /path/to/dev_sda.17-Mar-2012
# mount /dev/loop1 /mnt                                                                               
NTFS signature is missing.
Failed to mount '/dev/loop1': Invalid argument
The device '/dev/loop1' doesn't seem to have a valid NTFS.
Maybe the wrong device is used? Or the whole disk instead of a
partition (e.g. /dev/sda, not /dev/sda1)? Or the other way around?

I've tried "16GiB" and "16G" also.
 

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LEARN ABOUT OPENSOLARIS

shells

shells(4)							   File Formats 							 shells(4)

NAME

       shells - shell database

SYNOPSIS

       /etc/shells

DESCRIPTION

       The shells file contains a list of the shells on the system. Applications use this file to determine whether a shell is valid. See getuser-
       shell(3C). For each shell a single line should be present, consisting of the shell's path, relative to root.

       A hash mark (#) indicates the beginning of a comment; subsequent characters up to the end of the line are not interpreted by  the  routines
       which search the file. Blank lines are also ignored.

       The following default shells are used by utilities: /bin/bash, /bin/csh, /bin/jsh, /bin/ksh, /bin/ksh93, /bin/pfcsh, /bin/pfksh, /bin/pfsh,
       /bin/sh, /bin/tcsh, /bin/zsh, /sbin/jsh, /sbin/sh, /usr/bin/bash, /usr/bin/csh, /usr/bin/jsh, /usr/bin/ksh, /usr/bin/ksh93, /usr/bin/pfcsh,
       /usr/bin/pfksh, /usr/bin/pfsh, and /usr/bin/sh, /usr/bin/tcsh, /usr/bin/zsh, and /usr/sfw/bin/zsh. /etc/shells overrides the default list.

       Invalid shells in /etc/shells could cause unexpected behavior, such as being unable to log in by way of ftp(1).

FILES

       /etc/shells    list of shells on system

SEE ALSO

       vipw(1B), ftpd(1M), sendmail(1M), getusershell(3C), aliases(4)

SunOS 5.11							    20 Nov 2007 							 shells(4)
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