I have a Pen drive which has been moving info between PC's and MAC. PC now sees and empty drive, also does the MAC.I've tried Testdisk & Photorec w/o success.Is there any way to recover the data?
Gorkon
p.s. fdisk -l results are:
Disk /dev/sdc: 1010 MB, 1010827264 bytes
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I am preparing for RHCE. While doing the lab I renamed /etc/grub/grub.conf as grub1.conf. Now (obviously) system boots on grub> prompt. Can I recover without using a bootable CD? Another problem that I encountered was, while doing lab for fdisk, I used command umount -al. Now, fdisk -l is not listing the partitions but giving a message:- /proc/partitions does not exist. If I reboot the system this is restored.
View 1 Replies View Relatedi'm in need of my hard drive & usb flash drive numbers, but when i do fdisk -l i get no results - it just gives me the prompt as if i've pressed the enter key on my k/board.
View 1 Replies View RelatedI've just installed Debian 6 on an old pc so i can use it as a file server.As far as i know installation went fine but it didn't detect my Edimax wireless network card.The problem I'm having is using FDISK. I tried to explore my CD drive and i got an error message "Unable to mount location". I wanted to see if there was an installer to install my network card becuase the manufacturer says it's supported by Linux. When i use the su - command and try using fdisk -l it just displays the command prompt and no hdd info. I tried it the other day becuase I want to mount all the physical drives and one logical volume. This is only the first step for me configuring this computer as a server and i'm suck already and ready to give up and try Windows server (whcih i don't really want to do).Has anyone got any ideas how i can mount my cdrom and why FDISK isn't working?
View 9 Replies View RelatedI 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:
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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
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After reading Markus Ewald blogpost on http:[url]...n-ssd-on-linux about Aligning an SSD on Linux I decided to give it a try.I have bought two 80 GB Intel X25-M SSD for my home server. The plan is to install Ubuntu 10.04 64-bit server and use the SSDs as system discs and vmware data storage using software raid for redundancy.After reading the blog post I am not sure how to make all my partitions aligned and set up on EBS (Erase Boundary Size)I am planning for four partitions:Boot, size 1GB
Root, size 25GB
Swap, size 4GB
Data storage for vmware server, size 40GB
According to Markus Ewald I should use 32 heads and 32 sectors.Using the live CD, I started using fdisk -S 32 -H 32 /dev/sda.Fdisk can create partitions using cylinders or sectors, and now I ran into trouble.
First partition /boot must start on cylinder 2 (or sector 1024). Size is 1 GB and the following partition should be aligned and start on a new EBS block. How do I do this with fdisk?Should the next partition start on a new cylinder? Otherwise, after formatting, fdisk gives a warning that the partition is not aligned to the cylinder size? The overall question is how to format four aligned partitions which all are aligned with Intels X25-M EBS. EBS for Intel X25-M is either 128KB or 512KB (Have not found a confirmed value yet)
i have a question regarding how data is placed on a media, for example the daily used hdd: when we talk about storage we often speak in heads sectors and cylinders. my question is if heads, sectors and cylinder is the true way data exists on a hdd platter?
lets take for example, disk_x
1000.2gb = 1000204886016 bytes
255 heads, 63 sectors/track 121601 cylinders.
fdisk -H 128 -S 32 /dev/disk_x each cylinder will be shrank to 2097152bytes, number of cylinders will grow to 476934. but everything will be much more aligned and readable or there is something i don't know and i will loose almost half of the total sector count on the hdd cause 63-32=31. i asked the partitioner just to use 32 sectors from each track and only 128 tracks of the cylinder.
or another example, if i have a cluster size of 4k. why not making each track use 56 sectors or 7 clusters. theoretically i have all files in my storage and each one of them occupies 14 clusters isn't it wiser to make it as described. what happens when i invoke fdisk -h -s params? what will be changed, the disc physically and the way it is accessed or only the partition table? you probably asking your self what the hell does this dude wants? i want to get maximum i/outputs and the widest bandwidth and the nicest readble partition tables and to understand better fdisk -H -S.
I had a 500gb hard drive that I wanted to use on my Ubuntu system as a media storage drive. The drive originally had two partitions on it,one was a Dell Recovery partition and the other was a Windows Vista partition. Using the Palimpsest Drive Utility that comes with Ubuntu, I deleted both partitions,created a Ext3 partition using 100% of the space and copied my data to the drive. After I finally got fstab to load the drive, I found another problem. First of all, when Grub loads, two options it offers are:
Windows Vista (loader) on sdc1
Windows Vista (loader) on sdc3
Aside from that, 100% of the drive is not being used by the Ext3 partition.It is showing 434.6gb available on the drive. Fdisk is not showing any other partitions on this drive, so A) why are the Windows loader options showing up under Grub and B) why do I not have 500gb available?Here is a copy of the output fdisk -l:
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Disk /dev/sda: 80.0 GB, 80000000000 bytes
255 heads, 63 sectors/track, 9726 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes[code]....
I did this with :
Code:
I made two partitions as below
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3. Partition Compact Flash
Make two partitions on CF (use linux fdisk or anything else that is able to make linux filesystem)
1. at least 8MB FAT
2. rest ext2 (recommended) or ext3 - at least 50MB
Copy vmlinuz, initrd, linexec and params.txt to FAT partition.
Uncompress rootfs.tar.bz2 to ext2 partition. (command details at ref. [1])
But :
fdisk -l says only one /dev/sdd1
not sdd1a
not sdd1a
How can I mount those 2 created partitions, since they are hidden under /dev/sdd1 ?
Is it a bug of the kernel?
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)
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I would like to remove/create partitions on a harddrive without going into the menu of fdisk.
can one pass options to fdisk to create and delete without going into the menu? So that I can write a script to do that automatically.
Or if fdisk isn't capable, what other alternatives do I have?
Anyone have a script, or method, that would allow (c)fdisk to divide a hard drive up into equal size primary partitions?
View 1 Replies View RelatedThe principal at my High School (currently my Bosses boss) brought a flash drive down today with the windows message "The drive is not currently formatted, would you like to format it now?" I grabbed by Debian laptop and went to work. So far, I have had no luck recovering the partition table or partition using testdisk or r-studio. I tried to dd a copy of the drive and examine it. The whole image appears to be goose eggs. I am not sure where to go from here. Naturally she did not back the drive up as my boss told her to and the documents on it are irreplaceable
View 6 Replies View RelatedI have 3 Ubuntu installations & a PCLINUXOS, plus Windows XP installed on one hard disk. I still can boot to each one of them and can mount each one using Ubuntu.
The problem "may" have occurred when I reduced the size of some linux partitions using gparted. I still have plenty of space in each of those partitions.
When I started gparted all of the HD was unallocated. I did that from each ubuntu installation and the PCLINUX installation, plus LIVECDs. All indicated the space was unallocated.
When I did an fdisk -l from a Puppy Linux LiveCD I got a normal start and ends of each partition.
When I tried it from Ubuntu installation or live cd, I received the following types of responses:
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ubuntu@ubuntu:~$ sudo fdisk -l /dev/sda5
Disk /dev/sda5: 28.5 GB, 28566397440 bytes
255 heads, 63 sectors/track, 3473 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x00000000
Device Boot Start End Blocks Id System
ubuntu@ubuntu:~$ sudo fdisk -u /dev/sda5
The number of cylinders for this disk is set to 3473.There is nothing wrong with that, but this is larger than 1024,and could in certain setups cause problems with:
1) software that runs at boot time (e.g., old versions of LILO)
2) booting and partitioning software from other OSs (e.g., DOS FDISK, OS/2 FDISK) Plus the Windows partition seems to go over its limits.
Since all of my OS installations are still working, I don't know how critical this is. From reading another post, I understand this might be able to be fixed by making some changes in fstab.
I have installed ubuntu on my notebook, and there are 4 partitons in the hdd, all are NTFS, only one is ext4.
the problem is i deleted some hidden folders(in ubuntu which are not hidden, such as recyclebin and file information table folders) in ntfs partitions, now i need to reinstall the windows 7 back, i have a doubt that even windows will ever recognize those partitions again?
I inadvertently started creating a boot disk over an entire 300GB external hard drive. Needless to say, I had all sorts of data saved on there. I stopped it early on in the process by turning off the drive, but I now I don't know how to salvage what's left.
View 3 Replies View RelatedI had 10.04 installed in parallel with a bad windows OS. Used the 10.04 to pull the documents, pics, etc off of windows. Worked great. Then when I tried to delete the windows partition it screwed grub up an instead of just re-installing grub. I re-installed ubuntu, what the heck it was gonna get wiped anyway. I didn't back up the pics and documents. I did however have them in all the ubuntu folders for my pics etc.
I feel like total crap, anyway, how good of a chance do I have at getting something back with testdisk? After doing a "deeper search" I come up with multiple partitions but it won't let me restore all of them. I really dont care if I can't boot to a single one, just as long as I can get the data back. (always can use a live CD).
I woke up this morning to a non-booting 9.10 computer. After my grub screen disappears, I get the familiar Ubuntu b/w logo in the center of my screen. My hard drive cranks for an abnormally long time and then I get the following error:
I booted into a live CD and opened up GPARTED and my sdb4 (my /home location) partition shows up. I do a check on it and it seems ok.
I opened the Palimpsest Disk Utility to see what it said and it shows sdb4 as Unknown or Unused. I can not mount this drive using GUI methods.
I did some research on the forums looking to recover lost partitions. here is the output from fsck
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and the abbreviated output from fdisk -l
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Disk identifier:
This seems ok too.
My next step was to try testdisk. When I ran it, I was able to navigate this partition and apparently see all my files. I then tried to mount the partition manually.
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That also worked.
It seems to me that I practically have this thing where I need it without too many worries.
My question is: What is the next step to get this back booting again? I'm afraid of rewriting the partitions in testdisk until I get some feedback on whether this will really solve my problem. Maybe the partition isn't the problem? Is it something else and I've been going down the wrong path?
I have a dual boot Acer Aspire One, after reinstalling Windows back to "original factory", the way it was straight out of the box, it now will not boot up at all. It goes to the Windows start screen goes blank, and loops there infinitely. Is there a USB tool I can use to figure out what went wrong and recover either my Windows or Linux partition with out having to do a complete reinstall?
View 1 Replies View Relatedi specifically told ubuntu to install alongside my operation system (windows) and instead it installed over windows and deleted all the other partitions... i had 200gb of data that i completely lost is there anyway to recover this data?
View 4 Replies View RelatedSo here is my situation..i was using win 7 and ubuntu 10.10 in my dell studio 1555. and i wanted to try out debian so i installed debian in my pendrive. so the grub was modified. when the computer starts it shows debian,ubuntu and win7 no problem.. but if i remove the pendrive, nothing comes up. it shows grub rescue>..
so now i cant start up unless i plug in the pendrive. what to do now to solve this problem?? i want to restore my grub to the previos state.
I'm timing how long it takes to run a command foo. I'm looking to append the results from the time command to a file, and discard the results from the foo command. I tried the following, but it didn't do what I want:
$ time ./foo > /dev/null >> output_from_time_command.txt
I used Ubuntu before, without problems but since the 10.04 version it won't recognize my partitions. I formated my laptop and partitioned it, installed Windows 7 64bit, which I need for my work, and wanted now to install Ubuntu 10.04/10. I then used GParted to check my Harddisk and it is having troubles to recognize my partitions, too while Windows finds them. GParted is giving me an error message saying my partitions are oversized. I am still in the beginning of my Linux experiences and so I don't know what to do. I have two 250GB harddisks (how Windows recognizes them),
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I have vista and opensuse 11.2 on my computer, the problem is i can't open ext3 partitions from vista but i can the other way. I tried Ext2fsd but the linux partition is always in a read only mood even when i change this option. Also, all folders are empty I downloaded the program as admin and compatable with XP SP2.
View 3 Replies View RelatedXubuntu 9.04 installation CD not detecting any of the current partitions. This all started when I reinstalled windows XP a few days ago.After, the computer wouldn't boot into GRUB and would boot directly into windows.Other threads have dealt with a similar issue, that of overlapping partitions causing libparted/parted/gparted to detect the whole drive as unallocated space. The problem in these threads seemed to be a corrupted partition table, in which the partitions overlapped with each other. So of course I checked the output of fdisk -l for overlapping partitions, but I don't see any obvious overlapping partitions. I've noticed that the partition that used to be linux swap isn't showing up in the partition table at all. I might just be missing something simple here and would like another set of eyes to help me figure this one out. Does the problem have anything to do with the partition table being out of order (ie. not in order of what regions they cover on the drive)? From the liveCD I've run
Code:
sudo fdisk -lu
sudo sfdisk -d
sudo parted /dev/sda print
and have received the following output:
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ubuntu@ubuntu:/mnt$ sudo fdisk -lu
omitting empty partition (5)
Disk /dev/sda: 60.0 GB, 60011642880 bytes
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I've installed Arch Linux onto my Western Digital SATA drive.I love it, best ever, however, I need the fglrx proprietry driver for better 3-d performace, and decided to create a new partition. I decided to install Linux Mint.Sadly, in all my noobishness, I forgot about the 4 primary partition limit (oops!) and as I have /, /home, swap, and /boot partitions (all primary) already installed, I have run into a bit of a problem.I resized my /home partition (almost 500GB) to about 225, and was then told I have over 200GB unusable space. Is it possible for me to change at least 1 of my primary partitions to logical partitions AND keep all the data intact (AND edit the arch configuration so that it'll still work) so I can install a second linux? I sincerely doubt it
View 10 Replies View RelatedI am installing Ubuntu on the same hard drive as Windows 7. The partitions of Windows 7 have already occupied the left part of the hard drive. From left to right, the Windows partitions are one partition for Windows booting, one for Windows OS and software installation, and one for data which is planned to mount on Ubuntu. I was wondering how to arrange the order of partitions of root, home and swap, i.e. which is on the left just besides one Windows partition, which is in the middle and which is on the far right?
View 1 Replies View RelatedI have problem with XEN Citrix server I can not understand ; what is sda2 and sda3 partitions ?
Code:
root@cl-500 ~]# fdisk -l
Disk /dev/sda: 2000.4 GB, 2000407625728 bytes
64 heads, 32 sectors/track, 1907737 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
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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 ?
View 6 Replies View RelatedI 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 ?
View 8 Replies View Related