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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External HDD partition not showing [on hold]

I have problem with an external HDD. I am using Debian Jessie. The partition is not showing, I can see only the device: # ls /dev/sd* /dev/sda /dev/sda1 /dev/sda2 /dev/sda3 /dev/sda4 /dev/sda5 ...
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2answers
35 views

What is spinning my disk up periodically?

I recently bought a CubieBoard 3 and installed Debian. The OS is installed on SD card and I use a 2.5" HDD to share files. The HDD is using ext4. I want the HDD to spin down if it is not used to save ...
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1answer
40 views

looking for a linux script that can show all hard drive information

I am looking for a Linux script under command line that can show all hard drives information at the same time, such as Name, UUID, mount point, TYPE, free space/available space/total size/use% in MB ...
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0answers
18 views

Testdisk 6.14 unable to fix 20GB WD ROM scroprio device

Using partedmagic iso , with pre-configured utility testdisk 6.14 I tried to repair WD 20GB hard-disk. It failed in sense it got me "read errors". I don't know how to fix it? Please help me. I'm ...
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0answers
11 views

Separating SAS from SATA drives

I have to list all SAS drives and separately list all SATA drives, I'm working on CentOS6 and tried lots of commands which will give some specific information about bus of disks. Let me show you ...
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1answer
25 views

Recover hard disk file from corrupted one

I bought a 1 TB hard disk from my friend to back up my files but when I tried to copy 150 GB of data to the hard disk, during the last 5MB my laptop shut down due to power loss. After power came back ...
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2answers
50 views

Optimizing logical sector size for physical sector size 4096 HDD

With many new hard drive disks the physical sector size is 4096. Would it be possible to make the system use a logical sector size of the same size, rather than the default logical sector size of 512? ...
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1answer
22 views

How to debug hard drive power saving?

My harddrives are not going to powersave. I have added the following lines into /etc/hdparm.conf: command_line { hdparm -S 25 /dev/disk/by-uuid/42d40d37-2859-457c-93d0-e4c617d06d9f } ...
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1answer
26 views

Creating a live USB without persistence or access to hard drive

I am looking to be able to run a live copy of Linux off of a 4GB usb stick. I would like this to be a sandbox/learning environment, and my requirements are: 1) No persistence. Everything that is ...
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37 views

Repair or recover seemingly damaged partition on USB external disk

A friend brought this WD My Passport external harddrive to me to see if I could recover her files. The device is "not working" after a power outage. As per her testimony, when the device is connected ...
3
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3answers
293 views

Why my 3TB disk shows an actual size of ~800 GB with several tools except smart tools?

System disk started to fail and hence I ran out to buy a new HDD 10 minutes before closing time :/ This is for a 32-bit system disk. From earlier, relatively long time ago, I had checked out Seagate ...
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1answer
40 views

In smartctl output, what does LifeTime(hours) mean?

Specifically, in smartctl output, how is LifeTime(hours) calculated? I'm assuming it's one of the following: The difference (in hours) between the time of the test and the manufacture date of the ...
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2answers
56 views

Hard-drive errors

My /home file system is JFS, it got to RO mode several times already, so I had to reboot/remount it. I saw this at '/var/log/messages`: Dec 31 10:12:49 uvv-laptop-y570 kernel: [ 983.925711] ...
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0answers
71 views

Can`t mount external hdd

I am using Debian and I`m using Windows as well (much longer). I loaded a external disk on Windows but when trying to mount on linux again I keep getting the same error: Error mounting: mount exited ...
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1answer
84 views

What is the difference between /dev/sda and /dev/hda? [duplicate]

Sometimes internal harddrives are available as /dev/sda (with subsequent media located in /dev/sdb etc), and other times available as /dev/hda. What is the difference between the two? Does it vary ...
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27 views

Recover files from “crashed” partition

I'm using a Dell laptop that has 1TB hard drive, in which i created 4 partitions, one for MAC, one for LINUX, one for WINDOWS and a HD NTFS partition that can be accessed from the three. But, for some ...
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0answers
17 views

Is it safe to use the -y and -Y flags to hdparm?

Is it dangerous to use the -y or -Y flag in hdparm during a write, or when the disk is still mounted, or will hdparm refuse to spin-down, or automatically sync and unmount?
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1answer
43 views

how does hdparm calculate spin-down times?

I have been trying various options with hdparm, like setting the spin-down time to 5 minutes withhdparm -S 60 and setting the APM to 1, but I end up getting a spin-down in less than 5 seconds... How ...
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0answers
22 views

How to prevent automatic external hard-drive unmount

I am running some simulations in Matlab on a Linux machine (running Debian Gnome v3.4.2). All the scripts and heavy .mat files are in an external 1TB Toshiba hard-drive connected through USB 3.0 to ...
0
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0answers
13 views

freebsd10 disc cloning

I have a FreeBSD 10.1 computer whose disc is failing. I've tried to use Clonezilla, and dd with no results.My syntax with dd was dd if=/dev/hda of=/dev/hdb bs=1M (I used dd on systemrescue). The ...
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2answers
27 views

How to properly mount new hdd, to free up the old one

I installed a new hdd /dev/sdb1, and mounted to /home/ubuntu/new1, and moved some files there to free up the old hdd, but when I do du -h new1 is still takes space in the old hdd, below are my fstab ...
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2answers
58 views

How can I mount a drive under my home directory at boot?

In my current setup, I have a RAID0 array of 2x3TB HDDs with btrfs, two partitions: / /home Under the /home directory, there are two users, both admin, one of which is myself. So far, this setup ...
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0answers
70 views

/dev/disk/by-id creating wrong symlinks for harddrive

I'm running into an interesting problem where on reboots and power cycles, my harddrives will occasionally be given the wrong symlink in /dev/disk/by-id. For example, when I issue ls /dev/disk/by-id I ...
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1answer
26 views

1kb partition: is it a problem, can it be removed?

I have a 1KB partition on my drive, sda4. Here is the output of lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 698.7G 0 disk ├─sda1 8:1 0 500M 0 part /boot ├─sda2 8:2 ...
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1answer
54 views

Transforming a disk from MBR to GPT

I have a disk with classic MBR and want to transform it to use GPT without data loss. I have seen several more or less useful tutorials, but most of them are dealing with the specific problems related ...
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0answers
80 views

Why isn't this “external” harddrive showing up?

I have an "External harddrive to USB adapter" that's giving me trouble. It shows up if I run lsusb (unrelated devices ignored): Bus 002 Device 013: ID 152d:2338 JMicron Technology Corp. / JMicron USA ...
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1answer
137 views

LVM volume corrupted, can't be mounted after reboot

I created a LVM volume using this guide I have 2x2TB HDDs for a total of 4TB (or 3.64TB usable). I created the volume and rebooted. Everything was working fine. Then I copied 1.6TB of data on the ...
2
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1answer
32 views

stop an external hard disk from being in group floppy

I have an external hard-disk, connected by usb. Because it is external, the /dev file for it is in group floppy. However I use it as if it is internal. I also sometimes format sd cards and other usb ...
3
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0answers
46 views

Hard Drive reporting all 1's after parted

So I have a 3TB hard drive /dev/sdc that I am trying to create a partition on. Before this point, I had the issues described below, I transfered the drive to a Windows 7 computer and created a GPT on ...
2
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2answers
218 views

Can we add home partition by adding an additional hard disk?

I have installed CentOS 6 and I have configured it as a mail server. All user data is stored in the /home directory now, but it is running out of space. By adding extra hard drive can I increase the ...
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2answers
166 views

Use MegaCLI to add a new hard disk to existing RAID0 in Linux

There are two hard disks on my machine, but after installing the operating system, it uses only one hard disk to build RAID0. After installing MegaCLI, I used: MegaCli64 -pdlist -aALL to display ...
2
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2answers
130 views

where is the second hard disk in my CentOS?

yesterday I installed CentOS on my machine.There are two hard disk(SCSI) in my machine,but after installing,I used "fdisk -l"command to check disks only find one disk has been mounted.I also have ...
1
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1answer
49 views

Debugging an external HDD

I'm using an external HDD which is my old laptop's HD with 2.5 SATA enclosure. I tried to delete a partition in Windows and stopped it unknowingly. When I reinsert it, my OS including Ubuntu freezes ...
0
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1answer
295 views

Is partition table type “loop” a good or bad idea on BTRFS?

I have started to convert my disks to btrfs and following tutorials, most of them created the filesystem directly on the device instead on a partition. The file system is working and stores data but ...
2
votes
1answer
95 views

Auto mount and dismount USB harddrive debian server

I've read a few articles on how to automount USB devices with usbmount. I was just wondering about the following: the documentation states that when the USB device is removed it will automatically ...
3
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0answers
52 views

adding encrypted /home in LVM/LUKS

I installed a new (debian) system to an SSD device. After standard install I want to mount /home on the internal HDD. To be able to ask the question, some details: On install I (manually) generated ...
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0answers
34 views

4k mode hard disk partition

I am trying to create a 256 MB primary partition for my 320 Gig hdd using fdisk. Since, the drive support 4k I wanted to try the emulation mode. so, for 256 Mb of 512 K blocks leads me with below ...
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3answers
59 views

Can I backup a 1TB drive onto a 750GB drive?

I want to backup a larger harddrive (1000GB), but sadly, I only have a smaller harddrive (750GB) available. In this particular case, I do not want to copy over the files, I want to backup the ...
0
votes
1answer
24 views

How do I immediately put a drive to sleep (without changing its power setting configuration)?

Within GNOME's "Disks" utility there is the option to immediately put a drive into sleep / standby, which spins down the platters. I would like to do this on my servers before pulling hot-swap drives ...
0
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0answers
35 views

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 ...
3
votes
1answer
78 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 ...
0
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0answers
91 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 ...
2
votes
1answer
79 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
63 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 ...
3
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1answer
78 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: ...
2
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2answers
99 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 ...
1
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1answer
153 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. ...
0
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1answer
100 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 ...
0
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3answers
245 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 ...
0
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0answers
108 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?