** 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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Matching subscriptions: Ubuntu 16.04 Bugs
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 <[email protected]> /
Lekshmi C. Pillai <[email protected]>
---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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