[stgt] bs_sg_open(380) Not recognized /dev/sg0 as an sg device

Frank Michel michelfranck at neuf.fr
Sun Mar 13 11:26:42 CET 2011


We are currently using STGT v1.0.13 on a RHEL 6 test box.
We are encountering the following difficulty :

    tgtadm --lld iscsi --mode target --op new --tid=1 --targetname

    lsscsi -g

    tgtadm --lld iscsi --mode logicalunit --op new --tid 1 --lun 1
--device-type=pt --bstype=sg -b /dev/sg4
    tgtadm: invalid request

And the /var/adm/messages shows:

    chk_sg_device(295) stat failed errorno: 13
    bs_sg_open(380) Not recognized /dev/sg4 as an sg device

The problem is that sometime it works, sometimes not with the previous error

Are we doing something wrong ? /dev/sg4 exists for sure.

Thanks for your help
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