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Thread: Connecting an ISCSI volume crashes Debian 12

  1. #1
    Join Date
    Jan 2009
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    Ubuntu 12.04 Precise Pangolin

    Connecting an ISCSI volume crashes Debian 12

    Hi All
    I know that this is not quite the correct place for a Debian 12 question, but I have used this forum for many years and always found extremely
    helpful people, so I hope you will bear with me since no one has any thoughts on the Debian forum for this issue.

    My issue is as follows
    I have a QNAP NAS where i have created an ISCSI target that i would like to connect to in Debian.

    Code:
    $ iscsiadm  --mode discovery --type sendtargets --portal [IP]
    Shows me all available targets.

    Code:
    $ sudo iscsiadm  --mode node  --targetname "[TARGET]" --portal "[IP]" --login
    Allows me to login to the target.

    Code:
    $ sudo dmesg
    Shows my target getting recognised
    scsi host6: iSCSI Initiator over TCP/IP
    scsi 6:0:0:0: Direct-Access QNAP iSCSI Storage 4.0 PQ: 0 ANSI: 5
    sd 6:0:0:0: Attached scsi generic sg1 type 0
    sd 6:0:0:0: [sdb] 2097152000 512-byte logical blocks: (1.07 TB/1000 GiB)
    sd 6:0:0:0: [sdb] Write Protect is off
    sd 6:0:0:0: [sdb] Mode Sense: 43 00 00 08
    sd 6:0:0:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
    sd 6:0:0:0: [sdb] Preferred minimum I/O size 1048576 bytes
    sd 6:0:0:0: [sdb] Optimal transfer size 1048576 bytes
    sdb: sdb1
    sd 6:0:0:0: [sdb] Attached SCSI disk
    fdisk created a partition and mkfs.ext4 made an ext4 drive no issues.

    Manually mounting the drive also works with
    Code:
    $ sudo mount /dev/sdb1 /mnt/mountPoint
    node.startup is set to 'automatic' under
    /etc/iscsi/nodes/[IQN]/default
    And my /etc/fstab looks as follows
    /dev/sdb1 /mnt/mountPoint ext4 defaults 0 1
    The issue is if i keep the disk mounted my system crash after 5 - 10 minutes, and if i restart the system after mounting the drive but before the crash, the whole system is unable to boot and Debian says that the root account is locked.

    I cannot get a working bash shell by editing the kernel and adding
    init=/bin/bash
    fsck fails, all system mounts fail, and the only thing that i have found that works is to live CD the system and remove the
    /etc/fstab
    line for the ISCSI drive.

    Are there anyone that can tell me if i have made an obvious mistake that explains what i am experiencing?

    Are there anything i can try to figure out what is going on? I am NOT an iSCSI expert by any means.

    Thank you in advance
    Best regards

  2. #2
    Join Date
    Jun 2006
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    UK
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    Distro
    Ubuntu 22.04 Jammy Jellyfish

    Re: Connecting an ISCSI volume crashes Debian 12

    Thread moved to the Debian sub-forum.
    Ubuntu 20.04 Desktop Guide - Ubuntu 22.04 Desktop Guide - Forum Guide to BBCode - Using BBCode code tags

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