I'm using
to get the file size of the device in a file where I want the output
but one line always go to the terminal and make my interface look ugly:
Disk /dev/sda doesn't contain a valid partition table
How do I stop this line from going to the command line with a device that does not have a valid partition table, because my program requires it to not have a valid one? Is fdisk calling another script?
Last edited by darkstarxor; 01-23-2010 at 08:14 PM..
Hi!
I have 1.5 years experience in unix environment and shell scripting. Now, I started learning UNIX internals and network programming. Can you please help in finding the same material on the net
Thanks
Srinivas. (7 Replies)
I know UNIX user level commands, shell scripts. But i have no idea about kernel level programming and networking. I know the terms semaphore,IPC,socket programming. But i don't know in details what are these. I need to know the following.
1. Unix kernel level programming.
2. Unix Internals.
3.... (4 Replies)
Hello Gurus,
i am ok with the concepts of c language but i would like to know
more about the internals of c with respect to the compilers
what happens when we say
gcc filename.c
the a.out will get created(what actaully compiler does to the code inaddition to generating object code)
... (5 Replies)
hey all, im a new programmer.
i was wondering how you would go about writing the printf function yourself? it is my understanding that when you call printf you are calling an already written function and just providing an argument? if this is the case, is it possible to write that function... (8 Replies)
When we put a breakpoint using gcc then what all things happen internally and how the gdb using break is able to pause the execution of process( instead of killing it ) and later on resume the process execution? (0 Replies)
Hi,
How can I run fdisk partition in a script without interactive input?
In manual procedure, I run fdisk device, select n, select p, presess enter for default start number (1), press enter to default end number, then select w for writing to the partition table. The command looks like... (3 Replies)
Hello,
MBR partition table made by linux fdisk looks certainly not correct when printed by openbsd fdisk:
Partition table created on linux (centos 6.3):
# fdisk -l /dev/sdc
Disk /dev/sdc: 10.7 GB, 10737418240 bytes
255 heads, 63 sectors/track, 1305 cylinders
Units = cylinders of 16065 *... (2 Replies)
Hello,
Long-time Unix hacker here - I've worked on four variants of the kernel prior to the introduction of Linux. In my spare time, I've written Linux (Ubuntu) device drivers, kernel modules, cross-compiled, and built the kernel.
I'd like to do Linux internals/device drivers as a day job,... (1 Reply)
Discussion started by: OriginalVersion
1 Replies
LEARN ABOUT REDHAT
resize2fs
RESIZE2FS(8) System Manager's Manual RESIZE2FS(8)NAME
resize2fs - ext2 file system resizer
SYNOPSIS
resize2fs [ -d debug-flags ] [ -f ] [ -F ] [ -p ] device [ size ]
DESCRIPTION
The resize2fs program will resize ext2 file systems. It can be used to enlarge or shrink an ext2 file system located on device so that it
will have size blocks. If the size parameter is not specified, it will default to the size of the partition. The size parameter may never
be larger than the size of the partition.
The resize2fs program does not manipulate the size of partitions. If you wish to enlarge a filesystem, you must first make sure you can
expand the size of the underlying partition first. This can be done using fdisk(8) by deleting the partition and recreating it with a
larger size. When recreating the partition, make sure you create it with the same starting disk cylinder as before! Otherwise, the resize
operation will certainly not work, and you may lose your entire filesystem.
If you wish to shrink an ext2 partition, first use resize2fs to shrink the size of filesystem. Then you may use fdisk(8) to shrink the
size of the partition. When shrinking the size of the partition, make sure you do not make it smaller than the new size of the ext2
filesystem!
OPTIONS -d debug-flags
Turns on various resize2fs debugging features, if they have been compiled into the binary. debug-flags should be computed by adding
the numbers of the desired features from the following list:
1 - Print out all disk I/O
2 - Debug block relocations
8 - Debug inode relocations
16 - Debug moving the inode table
-p Prints out a percentage completion bars for each resize2fs operation, so that the user can keep track of what the program is doing.
-f Forces resize2fs to proceed with the filesystem resize operation, overriding some safety checks which resize2fs normally enforces.
-F Flush the filesystem device's buffer caches before beginning. Only really useful for doing resize2fs time trials.
AUTHOR
resize2fs was written by Theodore Ts'o <tytso@mit.edu>.
COPYRIGHT
Resize2fs is Copyright 1998 by Theodore Ts'o and PowerQuest, Inc. All rights reserved. As of April, 2000 Resize2fs may be redistributed
under the terms of the GPL.
SEE ALSO fdisk(8), e2fsck(8), mke2fs(8)E2fsprogs version 1.32 November 2002 RESIZE2FS(8)