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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257 views

What kind of data is stored in the ext4 file system's journal?

The ext4 file system has a feature called has_journal. In the dumpe2fs output, we can see something like this: # dumpe2fs /dev/sda2 | grep -i journal Journal inode: 8 Journal backup: ...
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3answers
83 views

Linux Mint 17.2 suddenly loses write access to filesystem

It may be a hardware problem since I'm using new computer but I'll ask anyway. So it happens sometimes - system becomes unable to write anything on hdd, applications start to crash, I forced to reboot....
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0answers
15 views

Partition managing

I installed Kali on my 250gb hdd at installation it asked if I want to create other partitions too bad I didn't thought I will need them and now I have 1 250gb boot partition. Is it possible and with ...
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1answer
32 views

Expanding Linux Partition

I am running ubuntu 14 on my laptop, the laptop is normally windows 8 but it is dual booted with ubuntu. My ubuntu partition is 50gb and I know that I have 500gb free space which is wasted on my ...
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0answers
38 views

Why is `smartctl -l xerror` LBA well beyond end of disk?

I ran smartctl -l xerror on a Seagate ST31000528AS (1TB disk with 512-byte sectors), and it gave me (in part): Error 597 [16] occurred at disk power-on lifetime: 11903 hours (495 days + 23 hours) ...
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3answers
74 views

Overwrite Linux while in use

Long story short, I would like to plug an USB pendrive to my Debian system (which is installed on the NAND memory on an ARM board) and overwrite the NAND with the image that's on the USB pendrive ...
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0answers
33 views

Poor hard disk read perfomance, but not with O_DIRECT

Since a few days my vps, which supposedly mounts a SSD disk, has been showing a very poor disk read performance. For example, with hdparm -t I get numbers around 20MB/s, while hdparm -t --direct shows ...
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0answers
36 views

Unable to mount 320GB volume (external RocketFish) via auto-usb

Cannot access my external hard drive--many files! (20GB remains). This is the message I get when plugging in the USB: Error mounting /dev/sdb at /media/reb/208CC64B8CC61AE4: Command-line `mount -t ...
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1answer
52 views

How to install new system drive while keeping old one available

I have an existing linux box, running Mint 15, using a single hard drive. I'd like to install a new drive (an SSD FWIW), on which I would install up-to-date Mint. I would like the old drive to ...
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1answer
152 views

Installing Debian 8 (Jessie) from HDD Partition

I tried to install Debian 8 (Jessie) with the official DVD 1 from my Card Reader (SDHC UHS-I Card 32GB). Now that does not work, because I am unable to mount it (no signal at all). Now I want to know ...
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0answers
24 views

SATA hdd to USB not showing up on computer/s

Hitachi deskstar hdd 250gb. Was once used as internal hdd to store my data. Formatted to either ext2 (or 3) as I used it on computer with puppy Linux. The circuit board blew a couple of months ago. I ...
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1answer
435 views

How to fix BTRFS superblock error after resize/shrink (BTRFS: couldn't get super buffer head for bytenr 274877906944)

BTRFS RAID1 array with 2 500 GB hdds, no errors. This is the root filesystem, so there are 3 partitions on each drive: 1 = /boot (ext4), 2 = / (btrfs), 3 (swap) /boot is ext4 because upgrading the ...
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1answer
137 views

hdparm -m16 (Multi Sector) how do you use this option?

Use of -m is VERY DANGEROUS. Only the old IDE drivers work correctly with -m with kernels up to at least 2.6.29. libata drives may fail and get hung if you set this flag. Please supply the --yes-i-...
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1answer
185 views

Tuning Linux I/O Scheduler

I need a little help with properly tuning the Linux I/O Scheduler for spinning drives. I have a process that writes data to a huge (4-16TB) memory mapped file and is using SHED_FIFO. The kernel then ...
2
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1answer
113 views

Meaning of “mkfs.ext3 -cc” error report

I'm trying to format a supposedly defective hard disk using "mkfs.ext3 -cc /dev/sda1" on a partition that spans over the entire disk. I wish to understand the meaning of the ongoing error report in ...
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0answers
11 views

Can I connect/disconnect unmounted disks from my SAS card?

I'm using a Dell H200 in IT mode (RAID disabled). Is it safe to add/remove unmounted disks to this device without powering down the system?
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0answers
59 views

Is the mounting point of a file system not a hard link?

Correct me if I am wrong: A hard link can't link to a file on a different filesystem, because the hard link's entry in the hardlink's parent directory can't point to an inode in a different filesystem ...
2
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1answer
3k views

Arch Linux cfdisk asking for disk label type

I am trying to partition my hard drive I just wiped with dban so that I can install arch linux but when i run cfdisk /dev/sda It says: Select table type gpt dos sgi sun I don't know which to ...
2
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1answer
2k views

how to check the filesystem type of a logical volume

How to check the filesystem type of a logical volume using lvm or any other utility.. For example, if my logical volume is /dev/vg1/lv1 then how to check its filesystem type ? I have made a ext4 ...
2
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1answer
177 views

how to create a partition in free space using GNU Parted

Below is my hard disk shown in gnu parted: (parted) print free Model: ATA HGST HTS541075A9 (scsi) Disk /dev/sda: 750GB Sector size (logical/...
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2answers
136 views

HDD cloning and non-matching checksums

I've been trying to clone a 1Tb HDD to a 1Tb SSD following the instructions here. I tried cloning it several times with both dd (painfully slow) and cat (far quicker) but when I came to do checksums ...
2
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1answer
65 views

Comparing 2 partitions on identical disks

I have 2 physically identical disks. Each with 1 partition: | Disk | FS | Size | Comment | |----------+------+----------+----------------------------------| | /dev/...
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0answers
181 views

Unable to mount secondary HDD on CentOS 6.7 (Must specify file system?)

I have a secondary HDD that worked fine in Ubuntu 13.04. I had mounted in to /media/user/<some UUID>/. I could read and write files without problem. My Ubuntu installation was on a primary SSD. ...
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1answer
489 views

External HDD not mounted at boot, but fstab seems ok

I'm on a Raspberry with DietPI distro and I cannot mount a NTFS hard drive at boot. This is the fstab file: #Internal Drives--------------------------------------------------- proc /proc ...
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0answers
26 views

Restoring VG configuration from recovered drive

Had to reinstall CentOS on a server with three RAID 1 arrays. I installed the OS on sda (300g), and left sdb and sdc alone (they were not formatted or otherwise fiddled with). The OS is up but I'...
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1answer
55 views

Hardware specs for Linux machine for cluster administration [closed]

I have just started as cluster system administrator and was asked to choose some features to get bought a personal machine to work on, and most intensive calculations will be perform in the cluster. I ...
0
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2answers
321 views

Can I install the /home and swap partitions to a different drive than /?

I am in the process of dual-booting my Windows 10 PC to also run Linux Mint. I have both a 240 GB SSD and a 1TB HDD. The SSD is for the Windows 10 OS, and the HDD is for my files/documents/everything ...
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2answers
2k views

How does Linux know which USB hard drive is which?

Currently I have Linux Mint installed on my PC with a USB hard drive partition mounted as /home. This is working well. If I install a second USB hard drive, is there any chance Linux will get ...
1
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1answer
47 views

gpart finds partitions but puts zeroes on all their specs

So this isn't my hard drive I'm working on so I'm not too sure how it got into this state. My friend had Windows XP on it and wasn't using it much then suddenly it wouldn't boot anymore. He just wants ...
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0answers
65 views

sysv and unknown partition table?

We have disk about 1985, It has a Unix.But we didn't know type of Unix.I did the following step : dd if=/dev/sdc of./all_of_disk.iso #sdc is the given disk Then : hexdump -C all_of_disk.iso > ...
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5answers
2k views

How to ignore write errors while zeroing a disk?

Say you want to zero-out a failing hard disk. You want to overwrite as much as possible with zeros. What you don't want is: the process aborts on the first write-error. How to do that? AFAICS, plain ...
1
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1answer
60 views

Is it possible to resume fsck.ext4 using offset X?

I was fscking my HDD, when I had to stop because I needed to get somewhere within an hour. The whole session took quite a while (lasted much longer than I thought!). My question is, is it possible to ...
1
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1answer
18 views

How to move linux from thumb drive to internal drive? [closed]

I have latest version of Linux Mint Cinnamon (persistent data) in 16 GB thumb drive and I want to move it to internal hard drive which is 128 GB. How do I do that and do I lose 112 GB or can it make ...
3
votes
2answers
221 views

Mount hard drives in the same order in debian

How can I mount the hard drives always on the same /dev/sd? node? For example, how can I make the hard drive with the UUID xyz to be mounted always on the node dev/sda? The reason why I want to do ...
1
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0answers
68 views

Easy mount hdd from remote computer

I've got a computer with an SSD with Linux Mint installed and a bunch of HDD's. When in the file-browser I click one of the HHD's they get mounted in /media, which is fine for me. However I need to ...
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0answers
255 views

BTRFS RAID6 array is broken, how do I fix it?

I have a server running a btrfs raid 6 array which seems to have broken. When try to mount it I get the following error message. I don't know how or why it broke maybe a power outage or something (it ...
0
votes
0answers
125 views

Trying to install debian 8.1 on Raid0 (4TB x 2) HDD. Tried dmraid; when detecting HDD only 3.6TB is showing

Trying to install debian 8.1 on Raid0 (4TB x 2) HDD. Tried dmraid; when detecting HDD only 3.6TB is showing. Bios is showing whole 7.6GB HDD.. Any solution ??
1
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1answer
51 views

LInux Mint not recognizing/mounting 160 GB HDD

I am not sure how to get it to mount. This is what I get for sudo fdisk -l WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util fdisk doesn't support GPT. Use GNU Parted. ...
1
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1answer
294 views

Gparted Shows HDD as unallocated

I've Windows 8.1 & I'm planning to install Kali Linux with it. However, at installation gparted shows the whole hard disk to be unallocated and a warning. The warning is as follows: /dev/sda ...
0
votes
1answer
110 views

How to make Drives visible to OS using MegaCLI / MegaRAID not puting them in to RAID at all?

So I have 12 [12:0-12] drives that are "Unconfigured Good" as WebBIOS would say. They are not in any virtual drive span or drive group. I want to use software ZFS RAID instead of hardware one. How to ...
0
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4answers
1k views

How to get hard disk information from /proc and/or /sys

How can I get hard disk capacity, usage, etc. using the /proc or /sys filesystems? If it is possible, please tell me which file(s) I need to process to get that information.
0
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0answers
215 views

ddrescue recovering 0B but drive appears in device manager. Is it failing to connect?

I guess that this is a variant on a previous question "Is this ddrescue command doing anything?" Apologies for going over similar ground. I have a failing 2TB Seagate Barracuda drive which came from ...
2
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1answer
116 views

SSD failiure. grub rescue sees files, but I can't mount drives

I have a 2 year old SSD that apparently has died. 2 out of the 3 partitions are completely unmountable (only EFI boot partition mountable). When i turn on my computer I am greeted with grub rescue ...
0
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1answer
88 views

No folders in “/” on hard drive, mounts “/boot”

I already posted my problem on askubuntu, but I hope to reach some broader audience here as I also realize it's not really Ubuntu specific. So I messed up my Ubuntu Server and it doesn't boot ...
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0answers
41 views

Adding a new disk to an exsting partition in linux

I have a sda on my opensuse and want to add a new disk to have more space on it. After adding the disk I have created a partition lets name it sdb. Mr sda has 6 partition and I ant to sdb to 6th ...
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1answer
87 views

fsck and checking external drives on reboot also

I know about shutdown -rF now that will check the drive on reboot but how can I also have it check all external drives also on reboot?
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1answer
153 views

Linux blocked on df

I am experiencing some trouble with an external HDD. I'm afraid it is starting to getting corrupted or damaged :S. In an application I am using statfs to retrieve information of that external HDD: ...
4
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2answers
327 views

how can I sync a specific device? [duplicate]

Is there a way to sync a specific device in Linux? This would be used to ensure that, e.g., writes to a USB thumb drive have taken place without waiting for queued writes from a video processing job ...
0
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2answers
383 views

To recover harddrive of partial formatting to NTFS from FAT

I have a partial formatting of a new disk (2TB of Buffalo) which I was going to format into NTFS from FAT (most probably fileformat of new disks). However, I removed the cable by accident. No ...
0
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3answers
45 views

How to obtain the whole disk activities triggered by file systems under linux?

I want to record the disk access activities called by OS. Such data I want to record are received by disk from OS, including disk sector number, request length, arrival time, read or write. To be ...