Hardware :: USB-stick Empty But 200 MB Used - Parameters For Fdisk ?
Feb 1, 2010
I recently got a 4 GB USB-stick (CBM V88) at a meeting. After removing all files to my hard disk it still had about 200 MB used space! I tried several kinds of deleting what ever that was -- to no avail. So I got furious and zeroed out the first 210 MB with dd and then used fdisk and mkfs to create a new FAT 16 partition (I need the stick to transfer data between windows and linux/bsd).
So far so good. Then I noticed still 4096 kB used space with no file shown What can be done here?
During fiddling with fdisk parameters heads / sectors / cylinders I noticed that there were something like 5125 blocks of 512 bytes not allocated (which is about 2,5 MB?!?). Can anyone point me to a reference how to calculate an optimized heads / sectors / cylinders count for a stick of the size of 4.108.070.912 bytes or, even better, explain it here for all interested readers?
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May 7, 2010
I have a 120GB HDD with a 22GB partition for Ubuntu and the rest for Windows XP. Windows finally died on me so I attempted a fresh install on its partition. However, the install threw a ton of errors so I used a LiveCD to re-install Grub and I booted into Ubuntu. I open up the disk utility to re-format the Windows partition so I can re-try re-installing Windows, but immediately I notice that the partitions are not right. If you add up all the partitions, they are about, say, 18 million terabytes over my HDD's 120GB capacity. Ahhh! What do I do?
I don't think anything is terribly altered, since I can still boot into Ubuntu, but I am completely confused and slightly worried that I might kill any chances to save my HDD I can't post a screenshot due to my post count, so the image loses some of its efficacy in making it small enough for an attachment. Here is the output of fdisk -l: Code: omitting empty partition (5)
[Code]...
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Dec 18, 2010
Since I installed TinyXP on another partition on my PC, I get "omitting empty partition" when I use fdisk -l.
Code:
omitting empty partition (5)
Disk /dev/sda: 250.1 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
[Code].....
NOTE: I also searched for the palimpset error and I found a Bug Report there: [URL. I don't know if these informations could help to fix this problem, I think it's related and probably cause by the installation of Windows XP and the way that gparted and palimpset read the partitions.
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Oct 1, 2010
i was writing a .img file to my usb stick with ImageWriter, but it didn't seem to do anything so i clicked the close gtk button and pulled the stick out of my pc. now my pc gives my an when i try to open the stick. is there any way to fix this. I can use win xp pro, win xp media center, win 7 starter, ubuntu 9.10 and ubuntu 10.04
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Sep 1, 2011
I'm about to ditch Freenas as my NAS software and make it an Ubuntu server box. The mainboard is an Asus AT3ION-T dual core Atom board. Freenas runs happily from USB stick. I have no optical device to install Ubuntu from and would like to install Ubuntu Server to a USB stick.
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Oct 5, 2010
I am a final year student doign Computer systems engineering and just been introduced to linux. While still strugling to catch up with the commands, I am now given an assignment under shell scripting.I seriously am strugling to understand this question, can you please assist me.Here follows the assignment:
Operating Systems III
Some tips
e.g. (test if a file is empty, if it is then display "file is empty" otherwise display
[code]....
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Mar 21, 2011
When I start bluej and try to open files from my memory stick the memory stick is not available. Is there any way that I can open files directly in bluej from my memory stick.
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May 13, 2011
I have knowledge to make partitions unders windows using fdisk. In Red Hat there is also a fdisk command but how can I use it? In which situations we use linux fdisk ?
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Jun 3, 2011
I have used fdisk command in windows environment.Just insert a bootable cd having fdisk into cdroom and start hard disk partitioning. I have been working in red hat/fedora Linux since many months.I always use gui interface to do my hard disk partition. Well i am eager to learn Fdisk under Linux. How can I use it ,Its method to create a a fdisk cd or it is in the 1st cd of the operating system ?
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Apr 15, 2010
Is there any way to use 'fdisk -l' as a normal user? I see in F12, /sbin has been added to PATH by default for a normal user, but when trying to use it, nothing shows up.
See below for demonstration purposes:
Code:
Password:
I don't want to use 'su -' or 'su -c' and login every time.
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Apr 2, 2010
How to update /dev directory after creation of new partition on a disk? I have the udev installed, it works perfectly except this. The new devices appear only on reboot.
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Jul 15, 2010
Since installing 10.4 I've been having startup problems: I get a message requiring me to press S to mount various disks. Something which I've never really understood is: what is the relation between fdisk and fstab?At present fdisk gives sda1 and sda2 as my Linux partitions, sdb1 and sdb2 as my Windows partitions. fstab has:
/dev/sda1 /media/winboot ntfs
/dev/sda2 /media/windata ntfs
/dev/sdb1 /media/sdb1 ext3
/dev/sdb2 /media/sdb2 ntfs
/dev/sdb5 /media/sdb5 swap
which looks a bit sus to me. Am I supposed to make my fstab match fdisk, or does fstab modify the result of fdisk when it boots, or what?
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Sep 14, 2010
I actually wanted to create partitions on my usbstick, but instead I fdisked new partitions onto my boot + datadrive. It is still running. Is there a chance I can recover that?
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Dec 30, 2010
I just bought a 3TB drive to use for backups and I'm getting a strange message when I run fdisk to get a listing of the drives.Here's what fdisk says about the 3TB drive:
Code:
Disk /dev/sde: 3000.6 GB, 3000592977920 bytes
255 heads, 63 sectors/track, 45600 cylinders
[code]....
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Apr 25, 2011
It looks like I have one hard drive (30 GB) with three partitions, but df says my primary partition is under 9 GB? Shouldn't it be much larger?
Code:
$ sudo fdisk -l
Disk /dev/sda: 30.0 GB, 30020272128 bytes
255 heads, 63 sectors/track, 3649 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x0004b8d0 .....
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Mar 3, 2010
I know there are entries in FAQ and sticky topics about USB-drives, but I can't really make a use of any of them... I bought a new 1.5TB internal HDD and put it into an external HDD box connected to my PC via USB. The Problem is:
I plug it in, dmesg tells me:
Code: [ 478.884972] hub 1-0:1.0: state 7 ports 8 chg 0000 evt 0040
[ 478.885008] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001002 POWER sig=se0 CSC
[ 478.885078] hub 1-0:1.0: port 6, status 0100, change 0001, 12 Mb/s
[ 478.885095] usb 1-6: USB disconnect, address 2
[Code]....
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Dec 13, 2010
I want to know the differences between fdisk and sfdisk?
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Aug 20, 2009
i have one harddisk /dev/sda it is partitioned as below:
/dev/sda1: /
/dev/sda2: swap
after the centos is installed, i want to create another partition /dev/sda3 to use all remaining disk space. i used fdisk. after fdisk, it requires reboot. The partition table has been altered! Calling ioctl() to re-read partition table.
WARNING: Re-reading the partition table failed with error 16: Device or resource busy.The kernel still uses the old table. The new table will be used at the next reboot. Syncing disks.is reboot really necessary? is there any other tools which do not need to reboot?
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May 23, 2009
Does anyone know if fdisk is currently blind to SATA drives? If so, is there an alternative command one can use to list ALL partitions, mounted and unmounted, that are available to the system?
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May 6, 2011
I recently expanded the RAID on an iSCSI device which is shared out to a linux server. Fdisk correctly sees the new size but it won't let me add a third partition. It complains about overlapping partitions whenever I try to add it.If I 'remove' the partition, the overlapping error goes away. The interesting thing here is that when attempting to use the default sizes to setup the partition the printed screen shows completely different results (which I can understand is why its complaining about overlapping)
I'm not sure why its not accepting the cylinder sizes I want. Anyone have any ideas as to what's wrong here?
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Jul 17, 2009
I have a Windows Vista machine on which I selected "utilize free space on selected drives" to install Fedora 9 temporarily. Now, however, I'd like to remove the Fedora installation. I've tried using fdisk from the Fedora 9 rescue mode on the install DVD, but I seemed to merely mess up the cylinder boundaries. When I boot from the DVD, before entering rescue mode it says that /dev/sda contains a looped partition, and asks whether I want to reformat it (completely removing everything on the drive).
How do I remove the "looped" Linux partitions? (I cannot login to Windows, so any GUI applications won't be any help.)
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Oct 23, 2009
I want to replace the fdisk that is included on the busy box of the Slackware dvd, with the gnu fdisk. Trying to find something but not any luck till now.
Can it be done?
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Jan 12, 2011
How to use CHMOD in linux? When I try to delete a file/folder, permission is denied. What exact params must I give for chmod here? This is what I need to do. Execute a command ./build.mips , but I get permission denied error.
kirti@sgf:/disk/go$./build.mips
-bash: ./build.mips: Permission denied
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Feb 8, 2011
I have a strange problem with RHEL4.7, with kernel 2.6.9-78.
I cannot set any kernel parameters by editing sysctl.conf file and run sysctl -p, everytime the old value appears, while it was possible before.
I tried to edit files under /proc by using vi when trying to save it gives me: E667: Fsync failed!
While echo 1>/proc/sys/net/ipv4/ip_forward also cannot edit the file.
Also I mounted proc device on another mount point:
# mount -t proc proc /mnt
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Mar 8, 2010
Specifically I'm trying to run xmacro from within a c program. If I were to run it from the terminal I would do it along the lines of Code: xmacroplay :0.0 < script_file.txt, but I want to run it from my c program. I'm fine with my c program running it from the terminal if that's possible and easier but I'm guessing there must be a better way.
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Dec 9, 2010
Iīm pretty new to linux and debian and I have a problem with my disk setup. I have a rocketRAID hardware card installed for RAID setup. In addition I have a separate HDD for linux and use the RAID-setup for server purposes. Now, when I boot the system, grub boots /dev/sda1. This does not work and I have to change to /dev/sdb1 for it to find the system files. (although sometimes it works, but in these cases the system does not find the RAID-disks. Thatīs for another time thou).
The strange thing about this, to me in any case, is that "fdisk" reports correctly, with sda and sdb but "df" reports all disks as sda and none as sdb. It also misses a partition of the RAID-disks which fdisk reports. hereīs a screengrab from "fdisk -l" and "df -h"
[Code]...
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Jan 4, 2011
Here is my fdisk -l output:
yaman:/home/aykut# fdisk -l
Disk /dev/sda: 120.0 GB, 120034123776 bytes
255 heads, 63 sectors/track, 14593 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
[Code].....
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Oct 16, 2010
im a beginner in using linux and i want to know how to use fdisk to format a mmc card and partitioning it
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Sep 30, 2010
I have a dell poweredge 2950 server which had red hat on it. I have installed ubuntu on top of it. I have replaced master boot record during the installation of ubuntu as I dont want use red hat anymore. During the installation it asked me for the space I wanted to give for Ubuntu and I provided 10GB. Now I can use only 10GB of my harddrive until I mount other partitions correct?
So when I type sudo fdisk -l I get the below printed:
Code:
Disk /dev/sda: 146.2 GB, 146163105792 bytes
255 heads, 63 sectors/track, 17769 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
[Code]....
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Dec 1, 2010
I'll avoid the details of what got me here and get right to the point.I have two primary partitions on 1 hard drive. sda1 is my fat32 recovery partition and sda2 is my ntfs windows xp partition. I need to know how to change the order around so xp is sda1 by using the terminal in the ubuntu live cd.
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