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Thread: Problem with second hard disk access

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  1. #1
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    Problem with second hard disk access

    Hey everyone,

    i am a bit new to Ubuntu and have a small problem accessing my second Hard disk, i have a main ssd one where ubuntu is installed, and a second extra one but i do't know how to access it or move files to it!

    here is what i get when i give the command sudo parted -l


    Error: /dev/sda: unrecognised disk label
    Model: ATA ST2000LM007-1R81 (scsi)
    Disk /dev/sda: 2000GB
    Sector size (logical/physical): 512B/4096B
    Partition Table: unknown
    Disk Flags:


    Model: Unknown (unknown)
    Disk /dev/nvme0n1: 512GB
    Sector size (logical/physical): 512B/512B
    Partition Table: gpt
    Disk Flags:


    Number Start End Size File system Name Flags
    1 1049kB 840MB 839MB fat32 EFI system partition boot, esp
    2 840MB 6209MB 5369MB fat32 Basic data partition msftres
    3 6209MB 512GB 506GB ext4

    Thanks in advance!

  2. #2
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    Re: Problem with second hard disk access

    I am sure that someone with a lot more experience than myself will respond, but to me it looks like the drive isn't formatted? Was this a new drive? Has anything ever been on it? If not new, was the drive previously used on a Windows machine?

  3. #3
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    Re: Problem with second hard disk access

    Looks like /dev/sda needs a partition table, partitioning and formatting. I would use gparted for that, choose GPT, not MBR/MSDOS.
    This assumes /dev/sda is the drive you mean. If you want any data that is on it, this will wipe everything, 100%.

    After you format one of the partitions with a file system, use EXT4 unless you have good reason for some other file system, then you can mount it almost anywhere. Use the fstab for that. Google will find a guide - "ubuntu fstab" is the search term.

    BTW, if
    Code:
     3 6209MB 512GB 506GB ext4
    is being used for / on the NVMe, I'd reduce that as much as possible - 25G for the OS is vastly more than needed. Then I'd setup /home on the NVMe with another partition - probably around 20G for everything except media. Then I'd put media on the spinning disk and use symbolic links to make access easier. I wouldn't directly mount the spinning disk anywhere under HOME.

    BTW, it is considered a best practice to leave 10-20% of an SSD unused. This should drastically extend the SSD life.

    If you are really adventurous and want a much more flexible storage management solution, use LVM. Then resizing storage areas up is trivial and down it is much easier.

  4. #4
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    Re: Problem with second hard disk access

    Quote Originally Posted by TheFu View Post
    Looks like /dev/sda needs a partition table, partitioning and formatting. I would use gparted for that, choose GPT, not MBR/MSDOS.
    This assumes /dev/sda is the drive you mean. If you want any data that is on it, this will wipe everything, 100%.

    After you format one of the partitions with a file system, use EXT4 unless you have good reason for some other file system, then you can mount it almost anywhere. Use the fstab for that. Google will find a guide - "ubuntu fstab" is the search term.

    BTW, if
    Code:
     3 6209MB 512GB 506GB ext4
    is being used for / on the NVMe, I'd reduce that as much as possible - 25G for the OS is vastly more than needed. Then I'd setup /home on the NVMe with another partition - probably around 20G for everything except media. Then I'd put media on the spinning disk and use symbolic links to make access easier. I wouldn't directly mount the spinning disk anywhere under HOME.

    BTW, it is considered a best practice to leave 10-20% of an SSD unused. This should drastically extend the SSD life.

    If you are really adventurous and want a much more flexible storage management solution, use LVM. Then resizing storage areas up is trivial and down it is much easier.

    Thanks a lot for your reply. It is a new drive and have never been used. I have already much important data on the mounted SSD, so what would be the best way to format and access the extra hard disk, without risking the SSD data where also the OS runs? Would using gparted affect the other drive where the OS runs. Sorry if my questions are quite basic but still new to Linux here

  5. #5
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    Re: Problem with second hard disk access

    Would using gparted affect the other drive where the OS runs. Sorry if my questions are quite basic but still new to Linux here
    No, there is a drive selector in the upper right of the gparted window. That displays the drive gparted will change.

  6. #6
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    Re: Problem with second hard disk access

    Thanks a lot for your reply. Yes its a new drive and have never been used, i thought it would have been delivered formatted and accessible but apparently this is not the case. I have already much important data on the mounted SSD, so what would be the best way to format and access the extra hard disk, without risking the SSD data where also the OS runs?

  7. #7
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    Re: Problem with second hard disk access

    Quote Originally Posted by tarek-badr View Post
    Thanks a lot for your reply. Yes its a new drive and have never been used, i thought it would have been delivered formatted and accessible but apparently this is not the case. I have already much important data on the mounted SSD, so what would be the best way to format and access the extra hard disk, without risking the SSD data where also the OS runs?
    If you are running Linux, never assume anything. You don't want to use NTFS if you can avoid it. There are many reasons why that is a bad choice.

    NTFS is **not** a standard. Many things that people used to MS-Windows think ARE NOT standards. Linux cannot be run on NTFS, for example.

  8. #8
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    Re: Problem with second hard disk access

    Would you ever want to install a second copy of Ubuntu to test or experiment with settings so you do not potentially mess up main working install. Or try a different flavor? If so include an ESP - efi system partition FAT32 as first partition, 100 to 500MB.

    Detailed instructions on moving /home.
    To move /home uses rsync- Be sure to use parameters to preserve ownership & permissions
    https://help.ubuntu.com/community/Pa...ng/Home/Moving
    https://ubuntuforums.org/showthread.php?t=2343317

    Another alternative is to use data partition(s). You can mount in / and link folders back into /home or directly link into /home. But with your own data partition best to understand mounting, ownership & permissions. Using /home automatically does all that. But if a bit more knowledgeable or willing to experiment/learn you can use data partition.

    Be sure to choose gpt before anything else in partitioning. See attached.
    Also links to more info, gparted is included in Ubuntu live installer, but you can add it to your install to work on other drives, just not on any mounted partitions.
    http://gparted.org/documentation.php
    https://gparted.org/news.php
    Attached Images Attached Images
    Last edited by oldfred; July 18th, 2019 at 04:29 PM.
    For more info on UEFI boot install & repair - Regularly Updated :
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to change to [Solved] when/if answered completely.

  9. #9
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    Re: Problem with second hard disk access

    MBR(for old BIOS) or gpt(for UEFI) partitions:
    https://help.ubuntu.com/community/DiskSpace


    gparted & fdisk instructions:
    https://help.ubuntu.com/community/In...gANewHardDrive
    https://help.ubuntu.com/community/Ho...sAndPartitions


    See attached screen shots for gparted, first select gpt (double check you are using sdb), example of many partitions on sdb.

    Attached Images Attached Images
    Last edited by oldfred; 1 Week Ago at 03:32 PM.
    For more info on UEFI boot install & repair - Regularly Updated :
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to change to [Solved] when/if answered completely.

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