Tagged Questions

A permanent data storage device used for storing and retrieving digital information using rapidly rotating discs (platters) coated with magnetic material in a rigid form factor (as opposed to floppy disks).

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Getting partition boundary error when using GPARTED

I am trying to allocate my hard disk with below set of partitions using GPARTED. /dev/sdb1 - 256 MB /dev/sdb2 - 2048 MB With free space preceding as (4 Mb) between partitions. After applying the ...
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1answer
25 views

Approximate partition table backup with sfdisk

I wanted to convert some logical partitions to extended ones, so I was following this accepted answer. However, at the step of backing up my current partition table, I messed up and typed the ...
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29 views

Ext3 file system became read-only and server reboots spontaneoulsy

We noticed ext3 file system in our CentOS 4.9 server became read-only. We got the following error in dmesg: EXT3-fs: INFO: recovery required on readonly filesystem. EXT3-fs: write access will ...
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1answer
49 views

Hard Drive health check

In a previous thread the answer # smartctl -a /dev/sda looks good. The problem by my side is the highly verbose output. Is possible to obtain something more human understadable, something like "hard ...
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2answers
24 views

Spanning RAID over SSD and Mechanical HD

Currently I have my root (/) directory on my ssd, and my home directory on my mechanical drive. Wanting to utilize more of the ssd and hopefully get a speed benefit, I was considering spanning across ...
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1answer
42 views

View physical location of a file/directory on a hard disk

Is there any Linux program which offers the same (or some of the) functionality of Sysinternals DiskView, especially being able to view to physical location of a file on a hard disk? DiskView URL: ...
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2answers
49 views

Does `/proc/partitions` and/or `fdisk -l /dev/sdX` provide me a reliable device size?

I have two 3TB disks, which I hope to be exactly the same size. This means that I can use dd to copy them without being short or in excess of some bytes. Therefore I tried to find out the ...
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1answer
66 views

Unable to mount location after installing Linux Mint

I have been using Ubuntu for a while, but I decided to move to Linux Mint. I removed everything and clearly installed it. After the installation there are two parts which are File System and Toshiba. ...
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1answer
61 views

How to open root directory on second HDD?

My situation is very specific. I've applied chmod -R 777 / on my CentOS 7 server, so my system screwed up on next reboot. I took server HDD home and connected it via SATA cable to my home PC. Now I've ...
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3answers
86 views

How to combine multiple HDDs into one big HDD in Linux?

I'm very new to Linux, being mainly a Windows 7 user, so I may not understand Linux-specific commands without explanation. I've decided to build a NAS running some form of Linux (probably FreeBSD or ...
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39 views

Dualboot elementaryOS & Windows 8.1 on SSD with personal files on HDD?

When I create my gaming PC I plan to dualboot Windows 8.1 with elementaryOS and my programs on an SSD. However is it possible to place my data on a HDD for both to access?
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58 views

External Hard Drive Issue on mac

After the cd /Volumes command when I type ls it shows me my hard drive name twice, with different permissions. After that when I try to use mkdir to create a directory in the external hard drive I'm ...
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2answers
175 views

How to “List Disk” in Linux

In Windows, all you have to type is "List Disk" using DisPart in a command prompt and it'll list all physical storage devices available, their size, format, etc. How do I do this in Linux?
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3answers
33 views

How to write a pattern to a device to use it with badblocks with -t test_pattern option

I recently bought a 4TB hard disk and I want to do a read-write badblocks test on this before I start using it. Since running badblocks with -w option would take ages for 4TB, I've thought to first ...
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26 views

Should I use the discard flag when configuring the filesystem to be installed over the partitions on my SSHD?

I've recently bought a laptop with an SSHD. My guess is that most SSHDs are self-optimised, so the disk itself will handle wear-levelling issues, and I won't need to add the "discard" flag when ...
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1answer
75 views

How to Mount a Drive with Right Filesystem?

I am trying to mount the device /dev/xvdc on my CentOS system. When I run an fdisk command I get: Device Boot Start End Blocks Id System /dev/xvda1 * 1 33 ...
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1answer
45 views

Comparing Windows and Linux machine hardware

I have to compare Linux and Windows machine hardware? In windows system, I can open the My computer properties and see the details like processors, RAM Hard disks etc. Through task manager, I can see ...
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1answer
139 views

How to install Linux Mint 17 on SSD and have Home on HDD

I have Sony Vaio VGN-NW23NE Laptop and I'm using Linux Mint as my Operating System for about two years, I've currently Qiana. I bought a new 120 GB SSD to speed up my Laptop, but I'm confused about ...
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2answers
110 views

Getting the extra GPT info; a “fdisk -l” equivalent

What is the equivalent for GPT using HDDs of: # fdisk -l /dev/hda > /mnt/sda1/hda_fdisk.info I got this from https://wiki.archlinux.org/index.php/disk_cloning (under "Create disk image") for ...
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1answer
122 views

NTFS drive not mounting in Debian

This drive has been working fine for a while, but I recall having had some slight trouble getting it mounted in the past. Anyway, it was disconnected from the machine for some time and when I ...
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1answer
29 views

How are files or chunks delimited on disk?

I'm trying to recover some lost files by grep-scanning a hard disk. (The OS is Darwin 11.4.2. The file system is HFS.) How can I determine where a file (or contiguous chunk thereof) begins and ends ...
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3answers
189 views

equivalent of `grep -a /dev/sda1` on Darwin?

I want to run something like % sudo grep -i -a 'some-string' <drive device> On Linux, <drive device> would be something like /dev/sda1. How can I find the equivalent on Darwin? (In ...
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2answers
57 views

Is reading a file on UNIX faster than writing a file?

Sorry for the sheer simplicity of this question. A rather obtuse performance bottleneck has boiled down to this very small query. I have done some empirical analysis and I think I might be getting ...
2
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1answer
116 views

Hard Drive Crash / Gparted Error or Something Else

Well, I had my hard drive crashed some weeks ago. My Ubuntu (14.04) automagically froze and after the moment I pressed the restart button, and it prompted me with busybox prompt. I tried booting with ...
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3answers
142 views

dd write vs read performance

I have recently done some performance tests on a new server (using dd) and wonder why read performance is so much worse than write performance? Shouldn't it be another way around? file size was in ...
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0answers
29 views

Discovering possible RAID configuration of a bunch of disks

I have a stack of 8 disks which were at one point all inside of one host. That host no longer exists, but it's been requested that I retrieve data from these disks. No one can tell me anything about ...
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1answer
25 views

Can I split a disk image and run Photorec on each part individually?

I'm running Photorec on an external HD connected via USB and it's taking too long, with the estimated remaining time constantly increasing. Is there a way to create a disk image from that external ...
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0answers
17 views

Proper file system for an External Hard Drive to work well on Linux [duplicate]

I have a External Hard Drive (EHD) I want to use to backup the data on my Linux laptop. I want to know how I should format my EHD for it to work correctly with Linux. Thanks.
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1answer
39 views

Point folder on main HDD to newly mounted 2nd HDD

What is the best way to point a folder in one of my websites directory to a folder in a second HDD I just had installed? I see things about fstab and symlink but am lost at what is the best way to do ...
3
votes
2answers
82 views

Can I partition around a bad block on a harddrive?

I used a computer too much, running a script for many weeks. Eventually, Debian printed a thousand errors and shutdown, and won't start again. When I ran DBAN on the drive, to write 0's to the disk ...
4
votes
1answer
238 views

Partially overwrote /dev/sda, can I recover anything?

I was messing around with my new hard drive, which only contains some personal files, and to check its write speed, I typed: sudo dd if=/dev/zero of=/dev/sda, /dev/sda/ being the new 2 TB connected to ...
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0answers
29 views

How can I unveal files on my external hard drive?

I copied a big folder (around 110 GB) from my (Mac 10.7.5) computer onto a hard drive (exFAT). It took quite some time and afterwards I even checked that the files were actually there. After more ...
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1answer
34 views

Recovering a (not yet created) RAID5 with URE (Unrecoverable read errors)

I wan't to create a RAID5 array at home, the OS is Linux (Kernel 3.15.7) and the array will be created with mdadm. I wan't to create the array with eigth or ten 1TB discs. Let's assume a single drive ...
0
votes
1answer
40 views

How to use a USB device instead of a hard drive

Recently I setup a webcam that uses ftp, which uploads the current frame every 0.33 seconds. This creates thousands of images on my hard drives. I have a daily cron job deleting anything past 10 days ...
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1answer
42 views

How to decrease the time the processes would wait (blocked) for disk reads (only to discover an error)?

Waiting too long when encountering an unreadable sector on a disk is really very annoying. (Especially if you are trying to read as much data as can be read from a disk with bad sectors, and do it ...
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1answer
48 views

Prevent linux from auto scan and mapping partitions on some disk [closed]

TL;DR Linux scan disk (for example /dev/sdc) and add files to address partitions on that disk (for example /dev/sdc1) - how can I tell Linux to not do that for some disk? Long story: I used VM ...
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1answer
36 views

How to detect exact spec of my disk on a cloud server?

I've already read a question about whether your disk is SSD or HDD. When I issued the below command I've got surprised: cat /sys/block/vda/queue/rotational The output was 1. The question is why ...
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1answer
220 views

Debian Wheezy live - gparted, dmsg, fdisk etc. do not detect local hard drive but it is shown during installation

Yesterday I finished backing up my data and it was time to wipe that HDD of mine for good and freshly install Debian Wheezy stable with Xfce as a WM. I've booted into a live session to see if things ...
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2answers
62 views

Secure the content of a hard disk

I have to prepare a computer to give away, and I do not know who is going to use it. The computer has Debian installed, and the HDD is entirely encrypted. All users have their storage on the server. I ...
0
votes
1answer
27 views

Could not commit to disk during OS Installation

I've tried several times to load Fedora 20 onto an Acer 5750z laptop, but during the installation I get an error message of "Could not commit to disk", switched the OS disk to Ubuntu 14.04 and ...
0
votes
1answer
31 views

Lags on file access, is my HDD going to break?

Yesterday, I noticed that there is a 5 second delay around those things which used to be instantly. However, it just occurs sometimes, usually only on the first time (maybe kernel cache). Opening a ...
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1answer
130 views

Hard disk drive spins up on laptop sleep/wake, can I stop it doing this?

I have in my Arch Linux-running laptop an SSD and an HDD; the latter I use seldom. It is mounted as /mnt/sdb5 and configured to spin down proactively when on battery (/etc/default/tlp, ...
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2answers
46 views

Is there any danger in changing the labels of my hard drives?

I've have both Ubuntu and Arch installed on my computer, and want to change the labels of the / and /home partitions (four in total), to make it clear which is which. Can this potentially break ...
0
votes
1answer
46 views

Hard drive making strange sound

It sounds like the HDD is put into a power saving/sleep mode, spun down, but immediately started up again, and then this repeated 3-4 times, very quickly. How could I find out what this exactly is, ...
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votes
2answers
57 views

Backed up over wrong hard drive

I've just written over the wrong hard drive using the command: sudo sh -c 'pv /dev/sdb >/dev/sdc' How do I go about undoing this? I was creating the first even backup of the drive, and I backed ...
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1answer
646 views

In what sense does SATA “talk” SCSI? How much is shared between SCSI and ATA?

This is nothing new to me at least, that SATA actually "talks" SCSI, hence why these SATA devices show up as SCSI devices in Linux. A related question has been asked before, e.g. Why do my SATA ...
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2answers
182 views

Reduce bad block retry / wait times in Ubuntu

How can I reduce the IO wait time and retry times so that the OS doesn't continually try to write to a failing drive? I have an system that I use to make copies of demo content that gets loaned out ...
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3answers
418 views

Full DD copy from hdd to hdd

UPDATE: 2 This seems a lot better than before (Thanks to Groxxda for the suggestions): sudo dd if=/dev/sdb bs=128K | pv -s 3000G | sudo dd of=/dev/sdc bs=128K ETA is about 9 hours for 3TB, whereas ...
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1answer
102 views

unrecognized inateck hdd enclosure with linux Mint

I have put in a Hitachi 2.5 inch hdd inside a Inateck hdd enclosure. I have connected the enclosure to a Toshiba R630-156 using a usb2 cable on a usb3 enclosure port. I can hear and feel the hard ...
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1answer
798 views

LVM not coming up after reboot, couldn't find device with uuid

Had a VM that was, up until recently working without issue, but needed to be rebooted after some configuration changes. However after rebooting the VM didn't come back up, saying it couldn't find the ...