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[Mathieu Trudel-Lapierre <mathieu.tl@xxxxxxxxx>]

** Changed in: hw-detect (Ubuntu)
       Status: Triaged => In Progress

** Also affects: hw-detect (Ubuntu Xenial)
   Importance: Undecided
       Status: New

** Changed in: hw-detect (Ubuntu Xenial)
       Status: New => In Progress

** Changed in: hw-detect (Ubuntu Xenial)
   Importance: Undecided => Low

** Changed in: hw-detect (Ubuntu Xenial)
     Assignee: (unassigned) => Mathieu Trudel-Lapierre (cyphermox)

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https://bugs.launchpad.net/bugs/1602717

Title:
  hw-detect modprobes blindly, ignoring blacklists

Status in hw-detect package in Ubuntu:
  In Progress
Status in hw-detect source package in Xenial:
  In Progress

Bug description:
  == Comment: #0 - Mauricio Faria De Oliveira - 2016-07-11 18:47:59 ==
  ---Problem Description---
  modprobe does not honor blacklist options in kernel cmdline unless -b is used (at least on the installer)

  The modprobe.blacklist option is required as a work-around until a solution to a device-driver bug is found (IBM LTC bug 138273).
   
  I've gone through the code of the kmod src pkg, but didn't spot anything obvious.
  Passing along to the Ubuntu team.

  Contact Information = Mauricio Faria de Oliveira <mauricfo@xxxxxxxxxx> / Lekshmi C. Pillai <lekshmi.cpillai@xxxxxxxxxx> 
    
  ---Steps to Reproduce---
   Boot the installer w/ this boot/kernel cmdline option (the alias w/ dashes is not required, but is here just in case):
      modprobe.blacklist=scsi_dh_alua,scsi-dh-alua    

  On the dialog for username/password, select Go Back, then Exit to
  shell:

  The blacklist is detected/present in the config:

  ~ # modprobe -c | grep alua
  blacklist scsi_dh_alua
  blacklist scsi-dh-alua

  But the module is insmod-ed anyway:

  ~ # modprobe -v -n scsi-dh-alua
  insmod /lib/modules/4.4.0-21-generic/kernel/drivers/scsi/device_handler/scsi_dh_alua.ko 

  Unless -b is used:

  ~ # modprobe -v -n -b scsi-dh-alua
  ~ #

  Installer kernel:
  [    0.000000] Linux version 4.4.0-21-generic (buildd@bos01-ppc64el-017) (gcc version 5.3.1 20160413 (Ubuntu/IBM 5.3.1-14ubuntu2) ) #37-Ubuntu SMP Mon Apr 18 18:30:22 UTC 2016 (Ubuntu 4.4.0-21.37-generic 4.4.6)

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