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Thread: Ubuntu PRO

  1. #21
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    Re: Ubuntu PRO

    The easiest & fastest way to ensure everything is a clean install, for what you had, at this point... Is to wipe everything clean, start over and reinstall. The last install is only a few days old. You really aren't loosing anything, but have a lot to gain.

    Boot from an installer LiveUSB > Select try > Open a terminal session and open Firefox. In Firefox, get back to this post to cut and paste the following commands, executing each by pressing <Enter>:
    Code:
    DISK=/dev/nvme0n1
    blkdiscard -f $DISK
    wipefs -a $DISK
    sgdisk --zap-all $DISK
    Make sure each is successful.

    Start the installer and install (again) as you desire. Everything will install on a clean system, and should have no problems (with that).

    "Concurrent coexistence of Windows, Linux and UNIX..." || Ubuntu user # 33563, Linux user # 533637
    Sticky: Graphics Resolution | UbuntuForums 'system-info' Script | Posting Guidelines | Code Tags

  2. #22
    Join Date
    Jan 2024
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    Re: Ubuntu PRO

    Thank you, before I do that. How can I now display the ZFS that remained from the previous installation? I can't see it anywhere.




    lsblk -a
    NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
    loop0 7:0 0 4K 1 loop /snap/bare/5
    loop1 7:1 0 9,6M 1 loop /snap/canonical-livepatch/246
    loop2 7:2 0 105,8M 1 loop /snap/core/16202
    loop3 7:3 0 55,7M 1 loop /snap/core18/2812
    loop4 7:4 0 63,4M 1 loop /snap/core20/1974
    loop5 7:5 0 63,9M 1 loop /snap/core20/2105
    loop6 7:6 0 74,1M 1 loop /snap/core22/1033
    loop7 7:7 0 73,9M 1 loop /snap/core22/858
    loop8 7:8 0 237,2M 1 loop /snap/firefox/2987
    loop9 7:9 0 262,5M 1 loop /snap/firefox/3687
    loop10 7:10 0 164,8M 1 loop /snap/gnome-3-28-1804/198
    loop11 7:11 0 349,7M 1 loop /snap/gnome-3-38-2004/143
    loop12 7:12 0 485,5M 1 loop /snap/gnome-42-2204/120
    loop13 7:13 0 497M 1 loop /snap/gnome-42-2204/141
    loop14 7:14 0 91,7M 1 loop /snap/gtk-common-themes/1535
    loop15 7:15 0 263,9M 1 loop /snap/kate/171
    loop16 7:16 0 182,8M 1 loop /snap/signal-desktop/612
    loop17 7:17 0 571,7M 1 loop /snap/obs-studio/1294
    loop18 7:18 0 12,3M 1 loop /snap/snap-store/959
    loop19 7:19 0 182,8M 1 loop /snap/signal-desktop/614
    loop20 7:20 0 53,3M 1 loop /snap/snapd/19457
    loop21 7:21 0 40,4M 1 loop /snap/snapd/20671
    loop22 7:22 0 452K 1 loop /snap/snapd-desktop-integration/83
    loop23 7:23 0 321,1M 1 loop /snap/vlc/3721
    loop24 7:24 0 85,5M 1 loop /snap/teams-for-linux/504
    loop25 7:25 0 0B 0 loop
    nvme0n1 259:0 0 476,9G 0 disk
    ├─nvme0n1p1 259:1 0 512M 0 part /boot/efi
    ├─nvme0n1p2 259:2 0 1,7G 0 part /boot
    └─nvme0n1p3 259:3 0 474,8G 0 part
    └─nvme0n1p3_crypt 252:0 0 474,8G 0 crypt
    ├─vgubuntu-root 252:1 0 472,8G 0 lvm /var/snap/firefox/common/host-hunspell
    │ /
    └─vgubuntu-swap_1 252:2 0 1,9G 0 lvm [SWAP]






    sudo parted -l
    Model: Linux device-mapper (linear) (dm)
    Disk /dev/mapper/vgubuntu-root: 508GB
    Sector size (logical/physical): 512B/512B
    Partition Table: loop
    Disk Flags:

    Number Start End Size File system Flags
    1 0,00B 508GB 508GB ext4


    Error: /dev/mapper/nvme0n1p3_crypt: unrecognised disk label
    Model: Linux device-mapper (crypt) (dm)
    Disk /dev/mapper/nvme0n1p3_crypt: 510GB
    Sector size (logical/physical): 512B/512B
    Partition Table: unknown
    Disk Flags:

    Model: Linux device-mapper (linear) (dm)
    Disk /dev/mapper/vgubuntu-swap_1: 2051MB
    Sector size (logical/physical): 512B/512B
    Partition Table: loop
    Disk Flags:

    Number Start End Size File system Flags
    1 0,00B 2051MB 2051MB linux-swap(v1)


    Model: SK hynix BC711 HFM512GD3JX013N (nvme)
    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 538MB 537MB fat32 EFI System Partition boot, esp
    2 538MB 2330MB 1792MB ext4
    3 2330MB 512GB 510GB

  3. #23
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    Re: Ubuntu PRO

    Via
    Code:
    sudo apt install --yes zfsutil-linux zfs-initramfs
    sudo zdb
    Then just for extra, if anything shows
    Code:
    sudo zpool import <Tab>
    Meaning type the 3 words, then press the <Tab> Key...

    "Concurrent coexistence of Windows, Linux and UNIX..." || Ubuntu user # 33563, Linux user # 533637
    Sticky: Graphics Resolution | UbuntuForums 'system-info' Script | Posting Guidelines | Code Tags

  4. #24
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    Jan 2024
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    Re: Ubuntu PRO

    :~$ sudo zdb
    cannot open '/etc/zfs/zpool.cache': No such file or directory
    :~$

  5. #25
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    Re: Ubuntu PRO

    Please Please PLEASE use Code Tags, you have been asked a few times now to comply.
    It's just common courtesy and the proper thing to do.

    Now I no longer see your "rpool" listed, but give us this wrapped in Code Tags
    Code:
    lsblk -f |grep rpool
    See my signature for Code Tags
    With realization of one's own potential and self-confidence in one's ability, one can build a better world.
    Dalai Lama>>
    Code Tags | System-info | Forum Guide lines | Arch Linux, Debian Unstable, FreeBSD

  6. #26
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    Jan 2024
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    Re: Ubuntu PRO

    Code:
    lsblk -f |grep rpool
    nvme0n1               zfs_member  5000     rpool                          5441626908550946763

  7. #27
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    Re: Ubuntu PRO

    Yes there it is....And Thank you for the Tags

    Eventualy that will come in to play if not already.

    Post #21 will give you a clean install/reinstall
    With realization of one's own potential and self-confidence in one's ability, one can build a better world.
    Dalai Lama>>
    Code Tags | System-info | Forum Guide lines | Arch Linux, Debian Unstable, FreeBSD

  8. #28
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    Jan 2024
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    Re: Ubuntu PRO

    I thank you Should I perform a new installation with ZFS and encryption? or choose another combination? The only condition is encryption.

  9. #29
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    Re: Ubuntu PRO

    Quote Originally Posted by honzap00 View Post
    I thank you Should I perform a new installation with ZFS and encryption? or choose another combination? The only condition is encryption.
    Yikes that's kind of personal choice and one I can't decide for you. I will say zfs has a learning curve to it though.
    Is that the right choice for a stable work system?

    Your LVM on ext4 is very stable and proven with encryption.

    And if you want to learn about "zfs" just install :
    Code:
    sudo apt install zfsutils-linux
    After your new install, then if you mess up your system will/should remain intact

    Some light reading: http://jenpeterson.net/zfs-blog/

    Good Luck
    With realization of one's own potential and self-confidence in one's ability, one can build a better world.
    Dalai Lama>>
    Code Tags | System-info | Forum Guide lines | Arch Linux, Debian Unstable, FreeBSD

  10. #30
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    Jan 2024
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    Re: Ubuntu PRO

    I have an idea, but I need advice on whether it's possible.
    Can I create a disk backup (image) - for example, using Acronis True - and then restore that backup onto a previously properly erased disk?

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