Cannot mount ZFS partition from USB Livesystem

S

SystematicTechnology

Hi,
I'm having trouble with my fresh install of FreeBSD 14.2. It's currently hanging on boot with:

Code: 
drmn0: successfully loaded firmware image 'i915/kbl_dmc_ver1_04.bin'
drmn0: [drm] Finished loading DMC firmware 'i915/kbl_dmc_ver1_04.bin' (v1.4)
drmn0: [drm] [ENCODER:102:DDI E/PHY E] is disabled/in DSI mode with an ungated DDI clock, gate it

Previous to this, I had installed the drm-kmod package, put the i915 kld line in rc.conf, and added the handbook-recommended lines to /usr/local/etc/X11/xorg.conf.d/20-intel.conf. Most likely the problem is in one of these two lines.

To try and fix this, I first tried booting in safe mode, no luck, ended up at the same point. Single-user mode boots fine, but I can't edit the files. So I thought I'd try and boot from the liveUSB, mount the drive and edit the files that way. However, I can't mount the drive.

Here's what I've tried:
Code: 
root@:/mnt # mount /dev/ada0p9 /mnt/maindrive
mount: /dev/ada0p9: No such file or directory


root@:/mnt # mount -t zfs /dev/ada0p9 /mnt/maindrive
mount: /dev/ada0p9: No such file or directory


root@:/mnt # file -s /dev/ada0p9
/dev/ada0p9: data


root@:/mnt # zdb -l /dev/ada0p9
------------------------------------
LABEL 0 
------------------------------------
    version: 5000
    name: 'zroot'
    state: 0
    txg: 2630
    pool_guid: 4126004741500103134
    errata: 0
    hostname: ''
    top_guid: 11495719433479760085
    guid: 11495719433479760085
    vdev_children: 1
    vdev_tree:
        type: 'disk'
        id: 0
        guid: 11495719433479760085
        path: '/dev/gpt/zfs0'
        whole_disk: 1
        metaslab_array: 68
        metaslab_shift: 29
        ashift: 12
        asize: 42944954368
        is_log: 0
        create_txg: 4
    features_for_read:
        com.delphix:hole_birth
        com.delphix:embedded_data
        com.klarasystems:vdev_zaps_v2
    labels = 0 1 2 3 


root@:/mnt # mount /dev/gpt/zfs0 /mnt/maindrive
mount: /dev/gpt/zfs0: No such file or directory



How can I go about mounting the drive?
 
Hi there.

Besides previous post see also
T

Solved Post in thread 'Rescuing ZFS machine'

Hello there.

To edit the config file on the affected machine

Option 1 - boot the affected machine in single user mode, execute
Code: 
 # zfs set readonly=off zroot/ROOT/default
edit file, exit single user mode.

Option 2 - boot FreeBSD installer/rescue system, execute
Code: 
 # mkdir  /tmp/zfs
 # zpool  import  -R  /tmp/zfs zroot
 # zfs  mount  zroot/ROOT/default
edit file.
 
You must log in or register to reply here.
Back
Top