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Thread: Found "OS" in the mounted devices

  1. #1
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    Question Found "OS" in the mounted devices

    I am on Ubuntu 16.04 LTS

    To remove python from PC I did

    Code:
    sudo apt-get purge python*
    I realised the damage It is doing and aborted it in the middle, I ran the following

    Code:
    sudo apt-get install software-center
    sudo apt-get install gnome-software
    sudo apt-get install ubuntu-desktop
    Now my PC is working fine but I found "OS" in mounted devices, Please see the picture below.

    Screenshot-from-2019-01-24-12-07-48.jpg

    How do I remove/unmount it permanently so that it doesn't show up?
    Last edited by slickymaster; January 24th, 2019 at 11:50 AM. Reason: Removed large image

  2. #2
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    Re: Found "OS" in the mounted devices

    Hi, yucinext2cloud,

    and welcome to the forums!

    Is OS an actual partition which did not show up in the file manager before?

    Please post the output of:
    Code:
    cat /etc/fstab
    Code:
    mount
    and
    Code:
    blkid
    Last edited by sisco311; January 24th, 2019 at 09:39 AM.

  3. #3
    Join Date
    Jan 2019
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    3

    Arrow Re: Found "OS" in the mounted devices

    Hello, Thank you!

    "OS" didn't show up before and It happened only after I ran the commands I mentioned.

    The output of cat /etc/fstab

    Code:
    cat /etc/fstab
    # /etc/fstab: static file system information.
    #
    # Use 'blkid' to print the universally unique identifier for a
    # device; this may be used with UUID= as a more robust way to name devices
    # that works even if disks are added and removed. See fstab(5).
    #
    # <file system> <mount point> <type> <options> <dump> <pass>
    # / was on /dev/nvme0n1p3 during installation
    UUID=b68d69e4-e27b-402b-aadf-d2d72f09e713 / ext4 errors=remount-ro 0 1
    # /boot/efi was on /dev/nvme0n1p1 during installation
    UUID=6683-6A19 /boot/efi vfat umask=0077 0 1
    # swap was on /dev/nvme0n1p4 during installation
    UUID=d325acc8-04a1-49c5-ab63-9c184f030530 none swap sw 0 0
    The output of mount
    Code:
    mount
    sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
    proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
    udev on /dev type devtmpfs (rw,nosuid,relatime,size=8055132k,nr_inodes=2013783,mode=755)
    devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
    tmpfs on /run type tmpfs (rw,nosuid,noexec,relatime,size=1615416k,mode=755)
    /dev/nvme0n1p3 on / type ext4 (rw,relatime,errors=remount-ro,data=ordered)
    securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
    tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
    tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k)
    tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)
    cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,release_agent=/lib/systemd/systemd-cgroups-agent,name=systemd)
    pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
    efivarfs on /sys/firmware/efi/efivars type efivarfs (rw,nosuid,nodev,noexec,relatime)
    cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
    cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
    cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
    cgroup on /sys/fs/cgroup/hugetlb type cgroup (rw,nosuid,nodev,noexec,relatime,hugetlb)
    cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids)
    cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
    cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
    cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls,net_prio)
    cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
    cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
    systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=30,pgrp=1,timeout=0,minproto=5,maxproto=5,direct)
    mqueue on /dev/mqueue type mqueue (rw,relatime)
    debugfs on /sys/kernel/debug type debugfs (rw,relatime)
    hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime)
    tracefs on /sys/kernel/debug/tracing type tracefs (rw,relatime)
    fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)
    /var/lib/snapd/snaps/firefox_159.snap on /snap/firefox/159 type squashfs (ro,nodev,relatime)
    /var/lib/snapd/snaps/chromium-ffmpeg_5.snap on /snap/chromium-ffmpeg/5 type squashfs (ro,nodev,relatime)
    /var/lib/snapd/snaps/atom_210.snap on /snap/atom/210 type squashfs (ro,nodev,relatime)
    /var/lib/snapd/snaps/firefox_152.snap on /snap/firefox/152 type squashfs (ro,nodev,relatime)
    /var/lib/snapd/snaps/atom_209.snap on /snap/atom/209 type squashfs (ro,nodev,relatime)
    /var/lib/snapd/snaps/core_6034.snap on /snap/core/6034 type squashfs (ro,nodev,relatime)
    /var/lib/snapd/snaps/chromium-ffmpeg_9.snap on /snap/chromium-ffmpeg/9 type squashfs (ro,nodev,relatime)
    /var/lib/snapd/snaps/firefox_167.snap on /snap/firefox/167 type squashfs (ro,nodev,relatime)
    /var/lib/snapd/snaps/atom_211.snap on /snap/atom/211 type squashfs (ro,nodev,relatime)
    /var/lib/snapd/snaps/chromium-ffmpeg_8.snap on /snap/chromium-ffmpeg/8 type squashfs (ro,nodev,relatime)
    /var/lib/snapd/snaps/core_5897.snap on /snap/core/5897 type squashfs (ro,nodev,relatime)
    /var/lib/snapd/snaps/core_6130.snap on /snap/core/6130 type squashfs (ro,nodev,relatime)
    /dev/nvme0n1p1 on /boot/efi type vfat (rw,relatime,fmask=0077,dmask=0077,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
    overlay on /var/lib/docker/overlay2/e531b105bae721f9a44e08d2101bc9a7487da4ffede4fcf586b704b89792b665/merged type overlay (rw,relatime,lowerdir=/var/lib/docker/overlay2/l/VY5ENM4UCIK6YG5IRHL56ZTUNK:/var/lib/docker/overlay2/l/LBJBONO7DHTX2B2ZPYX4JZSXNQ:/var/lib/docker/overlay2/l/DMDKMX4MOEB6GLVANMZRDBU7DA:/var/lib/docker/overlay2/l/GBWPM3D3EOE4P773VCKOQT3WSG:/var/lib/docker/overlay2/l/C5AJMWHEMMH6XJYZMIX4M4U3TZ:/var/lib/docker/overlay2/l/ZTOC62765CH5XN3W7A5GYVKTPS:/var/lib/docker/overlay2/l/RS4VMLNFJFJPDRW7DN5ZFHHVIL:/var/lib/docker/overlay2/l/Y5DU7CP3LMA7OCMMUGV5U5SVUF:/var/lib/docker/overlay2/l/6Y5AZKZ6X6EPY5LWBVXOJ2PW2U:/var/lib/docker/overlay2/l/IYWRL4TVUO7PDTIXFGAWR3QB2Z,upperdir=/var/lib/docker/overlay2/e531b105bae721f9a44e08d2101bc9a7487da4ffede4fcf586b704b89792b665/diff,workdir=/var/lib/docker/overlay2/e531b105bae721f9a44e08d2101bc9a7487da4ffede4fcf586b704b89792b665/work)
    overlay on /var/lib/docker/overlay2/49d3d2d3894654c7ddea8878bda162b8abc56c834127dd20f65bb8d065afff45/merged type overlay (rw,relatime,lowerdir=/var/lib/docker/overlay2/l/REABCSF3WKE2HQZFD7FR3I6YC2:/var/lib/docker/overlay2/l/HSZQV3K6LD65T7DG2YSTTYWHI7:/var/lib/docker/overlay2/l/OWJCLT2DHIP6TICWK6QG5AOOIH:/var/lib/docker/overlay2/l/WNK5T7VB64WU5IN2MOBQQ7SI77:/var/lib/docker/overlay2/l/KKG75HOI4VBCUBHIDYX3GDGE5Q:/var/lib/docker/overlay2/l/PSXJDZBNNFY4VK5TFZMYUQQL5A:/var/lib/docker/overlay2/l/IN4KNBYLYOV5OUHFATLDJRTAUK,upperdir=/var/lib/docker/overlay2/49d3d2d3894654c7ddea8878bda162b8abc56c834127dd20f65bb8d065afff45/diff,workdir=/var/lib/docker/overlay2/49d3d2d3894654c7ddea8878bda162b8abc56c834127dd20f65bb8d065afff45/work)
    overlay on /var/lib/docker/overlay2/11b4bd626f2b7b9dfa8d8c7b109b4ce93493b1f33162f75509907b2da3fc6c1d/merged type overlay (rw,relatime,lowerdir=/var/lib/docker/overlay2/l/VMYOLN5KLPBJR5YYMR5ZT53JJ6:/var/lib/docker/overlay2/l/BAYT62EHFBZJ6US2UMKGPGFDH7:/var/lib/docker/overlay2/l/4VSZF45RLTPEDBSPXXJXSI3QVE:/var/lib/docker/overlay2/l/SQ6IDSK323ZNI7FXIRU6XRTOMT:/var/lib/docker/overlay2/l/R5DAJ2EZUZ7J2VBJSUZC7CSSDS:/var/lib/docker/overlay2/l/K4TWAD2DZLJBT7B5D7MKPWOLP2:/var/lib/docker/overlay2/l/TNP2MGW6YAUSPZKKMIL72LQTZD:/var/lib/docker/overlay2/l/IUJ33DUIL6OLRERMH4S66JVPQ6:/var/lib/docker/overlay2/l/KHMR53FL5C4YS3P7XDRNID4NII:/var/lib/docker/overlay2/l/IGMEDZWRWOXHOEIMDFWNADQ3WE:/var/lib/docker/overlay2/l/HJ6P3AHHYWOVT5QGSLPJYMDBKC:/var/lib/docker/overlay2/l/RTJTM7U2KN2SZ4JAMPRM42B32Q:/var/lib/docker/overlay2/l/IO3JXJNFD3FMWOMC2SNHSJ6YO4:/var/lib/docker/overlay2/l/ISPRWBJTOS7PETXG4KWR3CCTAW:/var/lib/docker/overlay2/l/FNPMCKDVZBZPYGRY5DLHAOSACI:/var/lib/docker/overlay2/l/JQFCYTHMSURX6O7YQ5DGKPGAOK:/var/lib/docker/overlay2/l/IPBCJASAGSG7HRQTGMBJYBQFE4:/var/lib/docker/overlay2/l/QAIG7OE5JDFHCZEBR24ZKTK6I4:/var/lib/docker/overlay2/l/SUFIKLB4JAOUDOUXDJ47TU4EGE:/var/lib/docker/overlay2/l/ZXNKBUXHLWGFKZWAHBUB4QISEY:/var/lib/docker/overlay2/l/DQRWCH7QQDXWTEDO5QN4HFLGX7,upperdir=/var/lib/docker/overlay2/11b4bd626f2b7b9dfa8d8c7b109b4ce93493b1f33162f75509907b2da3fc6c1d/diff,workdir=/var/lib/docker/overlay2/11b4bd626f2b7b9dfa8d8c7b109b4ce93493b1f33162f75509907b2da3fc6c1d/work)
    shm on /var/lib/docker/containers/81d4b439d4a41b7bd067b84de9aa4b9a5e01e92fe90c68fe5f4d6eced5976fab/mounts/shm type tmpfs (rw,nosuid,nodev,noexec,relatime,size=65536k)
    shm on /var/lib/docker/containers/0b8fa9a88d07a242c046f0d254fa16c2e586d9726ebe6d5bd7f113117393bc21/mounts/shm type tmpfs (rw,nosuid,nodev,noexec,relatime,size=65536k)
    shm on /var/lib/docker/containers/2191b1460ea2422c7303d8a86a4222f056964124db74c917ed8fd88ea7caf413/mounts/shm type tmpfs (rw,nosuid,nodev,noexec,relatime,size=65536k)
    nsfs on /run/docker/netns/c0d5f23c13eb type nsfs (rw)
    nsfs on /run/docker/netns/7c064bcfd212 type nsfs (rw)
    nsfs on /run/docker/netns/88290e96be9b type nsfs (rw)
    tmpfs on /run/user/1001 type tmpfs (rw,nosuid,nodev,relatime,size=1615416k,mode=700,uid=1001,gid=1001)
    gvfsd-fuse on /run/user/1001/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,relatime,user_id=1001,group_id=1001)
    /dev/nvme0n1p2 on /media/yucinext2cloud/OS type vfat (rw,nosuid,nodev,relatime,uid=1001,gid=1001,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,showexec,utf8,flush,errors=remount-ro,uhelper=udisks2)
    The output of blkid
    Code:
    sudo blkid
    /dev/nvme0n1p1: LABEL="ESP" UUID="6683-6A19" TYPE="vfat" PARTLABEL="EFI system partition" PARTUUID="b0ded393-d1b7-4e89-8d68-daf0db46131b"
    /dev/nvme0n1p2: LABEL="OS" UUID="C4AA-E0FF" TYPE="vfat" PARTLABEL="Basic data partition" PARTUUID="a7a644c9-c5d0-4ff7-8efb-8647662edf45"
    /dev/nvme0n1p3: LABEL="UBUNTU" UUID="b68d69e4-e27b-402b-aadf-d2d72f09e713" TYPE="ext4" PARTUUID="7bd264bc-94c4-4555-acdf-1f03289c1270"
    /dev/nvme0n1p4: UUID="d325acc8-04a1-49c5-ab63-9c184f030530" TYPE="swap" PARTUUID="154d0239-89f4-4e59-afa9-649ffba1ea7a"
    Last edited by ajgreeny; January 24th, 2019 at 11:56 AM. Reason: Code / quote tags repaired

  4. #4
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    Re: Found "OS" in the mounted devices

    @yucinext2cloud:
    Please do not post large images into your posts. Many of our users have slow internet connections and data limits. Large images can take a long time to load -- and may even cost a user extra money. Use the attachment functionality provided by the paperclip button above the text entry box.

    Also, Please use code tags when posting output because when it's posted as plain text it loses its formatting and parts of it sometimes turn into smileys making it difficult to read and understand. The use of 'Code' tags makes the post clean, compact and more appealing, thus getting more attention from readers.

  5. #5
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    Re: Found "OS" in the mounted devices

    If you right click on the OS in nautilus and choose Properties it may give you some clues about this OS entry, so copy back here any info it shows you.
    Last edited by ajgreeny; January 24th, 2019 at 12:11 PM. Reason: Typo

  6. #6
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    Re: Found "OS" in the mounted devices

    Thank you, Noted!

    The properties of "OS" are as follows:

    Code:
    Name: OS
    Type: Folder (inode/directory)
    Contents: 936 items, totalling 2.2 GB
    
    Location: /media/yucinext2cloud
    Volume: OS
    
    Total capacity: 3.2 GB
    Filesystem type: msdos
    Last edited by howefield; January 24th, 2019 at 12:28 PM. Reason: posts merged.

  7. #7
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    Re: Found "OS" in the mounted devices

    You show this in mounted partitions.
    Did you have a partition with label OS? When you automount with Naulitus, it defaults to UUID or label, if you have labeled it.

    Code:
    /dev/nvme0n1p2 on /media/yucinext2cloud/OS type vfat (rw,nosuid,nodev,relatime,uid=1001,gid=1001,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,showexec,utf8,flush,errors=remount-ro,uhelper=udisks2)
    UEFI boot install & repair info - Regularly Updated :
    https://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to change to [Solved] when/if answered completely.

  8. #8
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    Re: Found "OS" in the mounted devices

    You can change the mount options of the partition in gnome-disks (a.k.a GNOME Disk Utility or palimpsest).
    Code:
    gnome-disks --block-device /dev/disk/by-label/OS
    Click the gears icon and select "Edit Mount Options...". Enable the User Session Defaults option if needed and untick the Mount at system startup and Show in user interface options.

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