The fdisk tag has no wiki summary.
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1answer
48 views
pvcreate error on partition
I can't create this partition, I'm getting this error shown below:
Device /dev/mapper/vg_paperino-lv_rootp1 not found (or ignored by filtering)
Below are the steps that I'm doing on CentOS:
...
6
votes
4answers
151 views
Protecting Devices from dd and fdisk Commands
I'm wondering if there is some way to prevent certain certain devices from becoming the output file of the dd command and the target of the fdisk command. I'm currently using the two operations to set ...
1
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1answer
68 views
restore filesystem after fdisk
I split a partition in two with fdisk, but after rebooting I've got partition in FAT filesystem (was ext4). What's can be wrong? And how to fix it or get data from bad partition? I hope this is ...
1
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1answer
36 views
How to realign a disk on logical volume with minimum to zero down time
A system running un-align disk partition that needs to be aligned without loss of data on all the partition including mbr with the minimum to no down time.
2
votes
1answer
49 views
fdisk. What does the “free” partition mean?
I had two primary partitions (/dev/sda1 and /dev/sda2). Then I created an extended partition to segment it into logical partitions.
After I had typed fdisk /dev/sda and n (add a new partition) the ...
2
votes
1answer
139 views
fdisk, dd, and the Rapsberry pi
I was trying to wipe my 4GB SD card which acts as the hard drive for the Raspberry Pi, so I went into Mac OS X Disk Utility* and Erased the entire disk, and specified that the whole disk be one big ...
0
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2answers
382 views
CentOS doesn't see USB device
I'm running CentOS 6.3 inside of VirtualBox and am having trouble seeing my USB 2.0 thumb drive.
In VirtualBox I go to Devices, USB drives and can capture my connected thumb drive. I've created a ...
3
votes
1answer
174 views
Remount lvm partitions after OS reinstallation
I recently upgraded to Linux Mint from Ubuntu. I have overwritten /dev/sda2 which had Ubuntu. I had earlier created two logical volumes opt and virtualization from /dev/sda1. I forgot to take the lvm ...
2
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0answers
121 views
Disable RAID auto detect at runtime
In Linux, I'm partitioning two disks for RAID1 with fdisk. The first disk partitioning succedes, but the second fail because the raid starts automatically and occupy also the second disk (why? it ...
3
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2answers
228 views
How do I make use of unused space on my boot drive on FreeBSD
I have an old FreeBSD Server (running 7.3-RELEASE) that desperately needs additional storage. In fact, it has some-- the original 20G SCSI drives have been replaced by 300G SCSI drives, so in theory ...
2
votes
2answers
97 views
Can I safely resize my partition from its beginning?
Currently dual booting Windows 8 and Linux Mint 14, sooner or later I will give more space to my Linux system.
Is resizing my Linux partition from the beginning a safe operation ?
If yes, could you ...
1
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1answer
322 views
Growing my extended partition to the left
I have the following one hdd
Disk /dev/sda: 320.1 GB, 320072933376 bytes
255 heads, 63 sectors/track, 38913 cylinders, total 625142448 sectors
Disk identifier: 0xfa6bd800
Device Boot Start ...
2
votes
1answer
200 views
Create Logical Volume with non-LVM partition
I'm not sure if the title actually depicts my question, but I will try to explain.
I have seen everywhere it is mentioned to create a partition of type LVM (8e) and then create logical volume with ...
1
vote
1answer
366 views
fdisk isn't showing my hard drive as properly formatted (but it is)
I've got 3 1TB drives which I've set up to use LVM. Here's the output of pvdisplay:
--- Physical volume ---
PV Name /dev/sda1
VG Name vgpool
PV Size ...
0
votes
0answers
149 views
Fdisk hang after typing w
My host just added 2 SSD to my server. It seems that the 2 SSD has been partitioned and formated. However just to make sure I repartitioned again. I noticed that SDB1 and SDC1 is bootable. I deleted ...
5
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3answers
177 views
What's the best way to list size of / in Terminal?
I want to see how much total space / is taking, but I don't know how to do that. I can use ls -hal and add up the subtotals, or I can use fdisk to tell me the size of that partition, but is there a ...
1
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2answers
307 views
How to resize logical volume to fit filesystem
How can I resize logical volume to fit filesystem automagically?
1
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1answer
70 views
What happens to data copied after undoing fdisk?
Suppose I have some drive with a single partition. For some reason I decide to repartition it, using fdisk. I create multiple partitions, then write the partition table, then exit fdisk. At this ...
1
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1answer
2k views
Partition table not recognized by Linux kernel
I experience relatively often that the partition table of a USB stick or SD card is suddenly no longer recognized by the kernel while (g)parted and fdisk still see it, as do other systems. I can even ...
6
votes
1answer
867 views
How to properly align partitions?
I'm trying to understand what are the rules for creating correctly aligned partitions.
For the moment I'm playing with parted on a virtual machine, but I'm planning to move to a real hard disk when I ...
2
votes
2answers
750 views
I ran fdisk on a wrong drive. How can I recover
I ran fdisk on the wrong HD. I basically cleared partition table, pressed w and quited fdisk and only then realized that that was my main harddrive...
I got this message:
WARNING: Re-reading ...
1
vote
2answers
4k views
What are the ramifications of not having a valid partition table?
I recently upgraded my Ubuntu from 11.10 (Oneiric) to 12.04 (Precise Pangolin) on a Dell Inspiron B130 Laptop. When I run fdisk -l it says that my HD doesn't contain a valid partition table. I have ...
1
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2answers
632 views
Fdisk partition alignment, NAND, not showing specified heads
I ran fdisk with these options,
fdisk -H 32 -S 32 /dev/sdc
Then I made a new label, and created an aligned first partition.
Disk /dev/sdc: 7743 MB, 7743995904 bytes
32 heads, 32 sectors/track, ...
0
votes
1answer
374 views
Unknown hard disk partition?
I want to mount my 2nd hard disk from my Linux vmware guest but I try mount -t ext3 /dev/sdb2 to no avail. fdisk -l /dev/sdb gives me unknown format:
/dev/sdb1 2048 4208639 ...
3
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0answers
72 views
HDD Testing En Masse
Does anyone have any ideas about how to set up automatic detection and conditional formatting of a LOT of HDDs?
I tried posting this on TomsHardwareForums, but I don't think the responder read my ...
1
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1answer
318 views
fdisk hangs on “Syncing disk” when resizing a raw QEMU image
I'm using fdisk to resize the partitions on a raw QEMU image. When I write the new partition table, it hangs at "Syncing disks."
Note that I'm running fdisk as non-root since I don't need root to ...
1
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1answer
432 views
Adding a populated existing disk device to a QEMU raw image
I have a raw QEMU image (vda.raw), and I would like to resize it and add an existing partition, using data I have in a file that contains a raw ext3 file system populated with data (vdb.raw). The two ...
5
votes
3answers
343 views
how to use “Unusable” sectors outside defined partition boundaries
What might be a convenient way to stash some hidden data in the "Unusable" area following the last partition, or anywhere outside defined partition boundaries? For example, making it appear as a ...
1
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0answers
980 views
WD MyBook 3TB - Gparted failed & HDD partitions recovery?
I have this new WD MyBook external HDD (USB 3.0/2.0); I created 3 partitions all of them ext3 type (~1 TB | ~1 TB | ~750 GB)
I loaded lots of files all the partitions were like ~30% full on each, and ...
9
votes
6answers
14k views
How to partition 22TB disk?
I have a 22TB disk on /dev/sdb. How do I create a 22TB partition? Don't really care about the file system - ext4 or zfs is fine.
Running CentOS 6.2 - Partition will be used as a data dump. Only a ...
4
votes
3answers
3k views
Change the number of the partition from sda1 to sda2
I have a disk with two partitions: sda1 and sda2. I would like change the number of sda1 to sda2 and sda2 to sda1.
It's possible but I don't remember the procedure. i.e. My first partition will be ...
7
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3answers
751 views
Why do we need to specify partition type in fdisk and later again in mkfs?
I'm a little confused about fdisk and mkfs.
So - here is typical USB flash drive partitioning and formatting:
umount /dev/sdb
fdisk fdisk /dev/sdb
Command (m for help): d
Selected partition 1
...
2
votes
2answers
2k views
Use testdisk and gpart information to mount ext4 partition
I am trying to recover the ext4 partition table of a 2TB disk, where I have 900.000 files. I have cloned the original HD and now I am working on the cloned HD. And I am running Parted Magic Live CD.
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4
votes
1answer
3k views
How do I check how much free space left on a device to create a partition
Let's say I have this virtual machine running:
[root@centos ~]# fdisk -ul
Disk /dev/sda: 8589 MB, 8589934592 bytes
255 heads, 63 sectors/track, 1044 cylinders, total 16777216 sectors
Units = sectors ...
5
votes
3answers
688 views
Can't access USB HDD
I just bought a WD 1TB Caviar Blue drive, and a Bytecc HD-35SU enclosure for it. Snapped the drive in, went to plug it in on my laptop, nothing happened. I figured that probably meant I needed to ...
2
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2answers
721 views
Errors from cfdisk with new external USB backup drive
I've picked up an HP SimpleSave sd500a backup drive. This is a 2.5", 500GB drive. It has a mysterious CD-like partition, but otherwise seems to contain a WD Scorpio Blue disk. It seems that the ...
3
votes
2answers
984 views
How to create a new partition on a hard disk?
How do I create a new partition on a hard disk, from the terminal? I've been reading the man pages for fdisk and mkfs, but they're confusing. I need to know how to create a new partition on a blank ...
8
votes
1answer
2k views
How does partprobe work?
I was looking for a way to refresh the scsi bus (or any other bus, for that matter) that would allow my kernel ( 2.6.18-194-el5 on CentOS 5.5) to know about the partitions on a drive, and I couldn't ...
2
votes
1answer
718 views
fdisk unable to open
I am having problems using fdisk to clear the partition table of my sd card. The sd card is identified in the /dev folder when inserted into the sd card reader, but when the following command in run:
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5
votes
2answers
2k views
Finding the sector size of a partition
I answered this question, assuming that the *.img file had a sector size of 512.
How do I query a device, or the image of a device, to find the correct sector size?
