如果这个问题已经在某处得到回答，我深感抱歉，我已经到处搜索过了，但什么也没找到。
我是一名博士生，负责管理我们团队的一个小集群。在我们的服务器上安装 Ubuntu 20.04 时，我们选择了“实验性”zfs 功能。在过去的两年里，我们遇到了一些问题，但我们从未充分利用过 ZFS。我们升级到了 Ubuntu 22.04，现在想卸载它——但是我们可以吗？
当我运行时，zpool list我看到了bpool-rpool所以如果我卸载了软件包（不确定是哪些，因为我没有明确安装它们），系统还能启动吗？显然，我对 ZFS 不太了解，不应该安装它。
显然，我真的不想重新安装所有东西，因为这会花很长时间，而且通常会导致东西损坏。提前谢谢！
编辑：这是请求的输出（虽然听起来像是 SOL）。
$ sudo df -h
Filesystem Size Used Avail Use% Mounted on
tmpfs 6.3G 2.9M 6.3G 1% /run
rpool/ROOT/ubuntu_3tmtm1 830G 25G 805G 3% /
tmpfs 32G 16K 32G 1% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
rpool/ROOT/ubuntu_3tmtm1/var/www 805G 128K 805G 1% /var/www
rpool/ROOT/ubuntu_3tmtm1/var/snap 805G 3.9M 805G 1% /var/snap
rpool/ROOT/ubuntu_3tmtm1/var/games 805G 128K 805G 1% /var/games
rpool/ROOT/ubuntu_3tmtm1/srv 805G 128K 805G 1% /srv
rpool/ROOT/ubuntu_3tmtm1/usr/local 841G 36G 805G 5% /usr/local
rpool/ROOT/ubuntu_3tmtm1/var/spool 805G 256K 805G 1% /var/spool
rpool/ROOT/ubuntu_3tmtm1/var/lib 809G 4.1G 805G 1% /var/lib
rpool/ROOT/ubuntu_3tmtm1/var/mail 805G 128K 805G 1% /var/mail
rpool/ROOT/ubuntu_3tmtm1/var/log 805G 154M 805G 1% /var/log
rpool/ROOT/ubuntu_3tmtm1/var/lib/NetworkManager 805G 256K 805G 1% /var/lib/NetworkManager
rpool/ROOT/ubuntu_3tmtm1/var/lib/AccountsService 805G 128K 805G 1% /var/lib/AccountsService
rpool/ROOT/ubuntu_3tmtm1/var/lib/apt 806G 522M 805G 1% /var/lib/apt
rpool/ROOT/ubuntu_3tmtm1/var/lib/dpkg 805G 76M 805G 1% /var/lib/dpkg
bpool/BOOT/ubuntu_3tmtm1 1.8G 253M 1.6G 15% /boot
/dev/sda1 511M 7.1M 504M 2% /boot/efi
169.237.79.48:/mnt/home 8.0T 1.7T 6.3T 22% /home
169.237.79.48:/mnt/data 11T 7.8T 3.0T 73% /data
169.237.79.48:/mnt/backup 12T 28G 12T 1% /backup
169.237.79.48:/mnt/nvme 5.1T 3.8T 1.4T 74% /nvme
$ sudo df -hT
Filesystem Type Size Used Avail Use% Mounted on
tmpfs tmpfs 6.3G 2.9M 6.3G 1% /run
rpool/ROOT/ubuntu_3tmtm1 zfs 830G 25G 805G 3% /
tmpfs tmpfs 32G 16K 32G 1% /dev/shm
tmpfs tmpfs 5.0M 0 5.0M 0% /run/lock
rpool/ROOT/ubuntu_3tmtm1/var/www zfs 805G 128K 805G 1% /var/www
rpool/ROOT/ubuntu_3tmtm1/var/snap zfs 805G 3.9M 805G 1% /var/snap
rpool/ROOT/ubuntu_3tmtm1/var/games zfs 805G 128K 805G 1% /var/games
rpool/ROOT/ubuntu_3tmtm1/srv zfs 805G 128K 805G 1% /srv
rpool/ROOT/ubuntu_3tmtm1/usr/local zfs 841G 36G 805G 5% /usr/local
rpool/ROOT/ubuntu_3tmtm1/var/spool zfs 805G 256K 805G 1% /var/spool
rpool/ROOT/ubuntu_3tmtm1/var/lib zfs 809G 4.1G 805G 1% /var/lib
rpool/ROOT/ubuntu_3tmtm1/var/mail zfs 805G 128K 805G 1% /var/mail
rpool/ROOT/ubuntu_3tmtm1/var/log zfs 805G 154M 805G 1% /var/log
rpool/ROOT/ubuntu_3tmtm1/var/lib/NetworkManager zfs 805G 256K 805G 1% /var/lib/NetworkManager
rpool/ROOT/ubuntu_3tmtm1/var/lib/AccountsService zfs 805G 128K 805G 1% /var/lib/AccountsService
rpool/ROOT/ubuntu_3tmtm1/var/lib/apt zfs 806G 522M 805G 1% /var/lib/apt
rpool/ROOT/ubuntu_3tmtm1/var/lib/dpkg zfs 805G 76M 805G 1% /var/lib/dpkg
bpool/BOOT/ubuntu_3tmtm1 zfs 1.8G 253M 1.6G 15% /boot
/dev/sda1 vfat 511M 7.1M 504M 2% /boot/efi
169.237.79.48:/mnt/home nfs 8.0T 1.7T 6.3T 22% /home
169.237.79.48:/mnt/data nfs 11T 7.8T 3.0T 73% /data
169.237.79.48:/mnt/backup nfs 12T 28G 12T 1% /backup
169.237.79.48:/mnt/nvme nfs 5.1T 3.8T 1.4T 74% /nvme
$ sudo lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
loop0 7:0 0 4K 1 loop /snap/bare/5
loop1 7:1 0 55.6M 1 loop /snap/core18/2714
loop2 7:2 0 55.6M 1 loop /snap/core18/2721
loop3 7:3 0 73M 1 loop /snap/core22/607
loop4 7:4 0 63.3M 1 loop /snap/core20/1828
loop5 7:5 0 349.7M 1 loop /snap/gnome-3-38-2004/137
loop6 7:6 0 346.3M 1 loop /snap/gnome-3-38-2004/119
loop7 7:7 0 63.3M 1 loop /snap/core20/1852
loop8 7:8 0 460.4M 1 loop /snap/gnome-42-2204/68
loop9 7:9 0 53.2M 1 loop /snap/snapd/18933
loop10 7:10 0 81.3M 1 loop /snap/gtk-common-themes/1534
loop11 7:11 0 45.9M 1 loop /snap/snap-store/638
loop12 7:12 0 45.9M 1 loop /snap/snap-store/599
loop13 7:13 0 91.7M 1 loop /snap/gtk-common-themes/1535
loop14 7:14 0 49.8M 1 loop /snap/snapd/18596
loop16 7:16 0 428K 1 loop /snap/snapd-desktop-integration/57
loop17 7:17 0 241.9M 1 loop /snap/firefox/2559
loop18 7:18 0 460.6M 1 loop /snap/gnome-42-2204/87
loop19 7:19 0 241.9M 1 loop /snap/firefox/2579
sda 8:0 0 931.5G 0 disk
├─sda1 8:1 0 512M 0 part /boot/grub
│ /boot/efi
├─sda2 8:2 0 1K 0 part
├─sda5 8:5 0 2G 0 part [SWAP]
├─sda6 8:6 0 2G 0 part
└─sda7 8:7 0 927G 0 part
$ sudo zpool status
pool: bpool
state: ONLINE
scan: scrub repaired 0B in 00:00:03 with 0 errors on Sun Apr 9 00:24:04 2023
config:
NAME STATE READ WRITE CKSUM
bpool ONLINE 0 0 0
214bb022-06 ONLINE 0 0 0
errors: No known data errors
pool: rpool
state: ONLINE
status: Some supported and requested features are not enabled on the pool.
The pool can still be used, but some features are unavailable.
action: Enable all features using 'zpool upgrade'. Once this is done,
the pool may no longer be accessible by software that does not support
the features. See zpool-features(7) for details.
scan: scrub repaired 0B in 00:29:07 with 0 errors on Sun Apr 9 00:53:13 2023
config:
NAME STATE READ WRITE CKSUM
rpool ONLINE 0 0 0
214bb022-07 ONLINE 0 0 0
errors: No known data errors
答案1
“实验性”标签适用于 Ubuntu ZFS-on-root 设置，不适用于基于 ZFS 的数据磁盘。换句话说，您在 ZFS 上安装了操作系统本身（即 Ubuntu）。因此，您无法真正卸载 ZFS - 否则，操作系统将无法启动。您必须重新安装系统才能摆脱 ZFS。