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[Bug 1511006] Re: move iscsi_ibft and iscsi_boot_sysfs to -virtual kernel

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: Scott Moser <smoser@xxxxxxxxxx>
Date: Mon, 23 Nov 2015 15:50:12 -0000
Reply-to: Bug 1511006 <1511006@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
$ echo "deb http://archive.ubuntu.com/ubuntu $(lsb_release -sc)-proposed main" | sudo tee /etc/apt/sources.list.d/proposed.list
$ sudo apt-get update
$ sudo apt-get install linux-virtual
$ apt-cache policy linux-virtual
linux-virtual:
  Installed: 4.2.0.19.21
  Candidate: 4.2.0.19.21
  Version table:
 *** 4.2.0.19.21 0
        500 http://archive.ubuntu.com/ubuntu/ wily-proposed/main amd64 Packages
        100 /var/lib/dpkg/status
     4.2.0.18.20 0
        500 http://nova.clouds.archive.ubuntu.com/ubuntu/ wily-updates/main amd64 Packages
        500 http://security.ubuntu.com/ubuntu/ wily-security/main amd64 Packages
     4.2.0.16.18 0
        500 http://nova.clouds.archive.ubuntu.com/ubuntu/ wily/main amd64 Packages

$ sudo apt-get install open-iscsi
$ sudo touch /etc/iscsi/iscsi.initramfs
$ sudo update-initramfs -u -k all
update-initramfs: Generating /boot/initrd.img-4.2.0-19-generic
update-initramfs: Generating /boot/initrd.img-4.2.0-18-generic

## iscsi_ibft and iscsi_boot_sysfs are now in /lib/modules
$ find /lib/modules/ -type f | grep iscsi
/lib/modules/4.2.0-18-generic/kernel/drivers/scsi/libiscsi.ko
/lib/modules/4.2.0-18-generic/kernel/drivers/scsi/scsi_transport_iscsi.ko
/lib/modules/4.2.0-18-generic/kernel/drivers/scsi/libiscsi_tcp.ko
/lib/modules/4.2.0-18-generic/kernel/drivers/scsi/iscsi_tcp.ko

/lib/modules/4.2.0-19-generic/kernel/drivers/scsi/libiscsi.ko
/lib/modules/4.2.0-19-generic/kernel/drivers/scsi/iscsi_boot_sysfs.ko
/lib/modules/4.2.0-19-generic/kernel/drivers/scsi/scsi_transport_iscsi.ko
/lib/modules/4.2.0-19-generic/kernel/drivers/scsi/libiscsi_tcp.ko
/lib/modules/4.2.0-19-generic/kernel/drivers/scsi/iscsi_tcp.ko
/lib/modules/4.2.0-19-generic/kernel/drivers/firmware/iscsi_ibft.ko

## missing from 4.2.0-18-generic initramfs (old linux-virtual)
$ lsinitramfs /boot/initrd.img-4.2.0-18-generic | grep iscsi
lib/modules/4.2.0-18-generic/kernel/drivers/scsi/libiscsi.ko
lib/modules/4.2.0-18-generic/kernel/drivers/scsi/scsi_transport_iscsi.ko
lib/modules/4.2.0-18-generic/kernel/drivers/scsi/libiscsi_tcp.ko
lib/modules/4.2.0-18-generic/kernel/drivers/scsi/iscsi_tcp.ko
scripts/local-top/iscsi

## present in new from 4.2.0-19-generic 
$ lsinitramfs /boot/initrd.img-4.2.0-19-generic | grep iscsi
lib/modules/4.2.0-19-generic/kernel/drivers/scsi/libiscsi.ko
lib/modules/4.2.0-19-generic/kernel/drivers/scsi/iscsi_boot_sysfs.ko
lib/modules/4.2.0-19-generic/kernel/drivers/scsi/scsi_transport_iscsi.ko
lib/modules/4.2.0-19-generic/kernel/drivers/scsi/libiscsi_tcp.ko
lib/modules/4.2.0-19-generic/kernel/drivers/scsi/iscsi_tcp.ko
lib/modules/4.2.0-19-generic/kernel/drivers/firmware/iscsi_ibft.ko
etc/initiatorname.iscsi
etc/iscsi.initramfs
scripts/local-top/iscsi
sbin/iscsistart


Then, reboot and ensure the modules load (to verify deps are present).
$ uname -r
4.2.0-19-generic
$ sudo modprobe iscsi_ibft
$ sudo modprobe iscsi_boot_sysfs
$ lsmod | grep iscsi
iscsi_ibft             16384  0
iscsi_boot_sysfs       16384  1 iscsi_ibft
iscsi_tcp              20480  0
libiscsi_tcp           24576  1 iscsi_tcp
libiscsi               53248  2 libiscsi_tcp,iscsi_tcp
scsi_transport_iscsi   102400  3 iscsi_tcp,libiscsi


** Tags removed: verification-needed-wily
** Tags added: verification-done-wily

-- 
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https://bugs.launchpad.net/bugs/1511006

Title:
  move iscsi_ibft and iscsi_boot_sysfs to -virtual kernel

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Wily:
  Fix Committed
Status in linux source package in Xenial:
  Fix Released

Bug description:
  Calling iscsi ibft a 'virtual' thing is a bit questionable.

  That said, I was looking at ibft using qemu and ipxe.  The cloud
  images do not have the iscsi_ibft module included, so you can't read
  the information out of /sys/firmware/ibft until you have it.

  Given a iscsi target at 192.168.1.131::3260:1:mytest (format is
  described at http://etherboot.org/wiki/sanboot/iscsi_boot)  with a
  cloud image populated (or other bootable data) you can boot from that
  via:

  qemu-system-x86_64 -enable-kvm -m 1024 -curses \
     -kernel /usr/lib/ipxe/ipxe.lkrn  -append 'dhcp && sanboot iscsi:192.168.1.131::3260:1:mytest'

  The ipxe.lkrn file is in the 'ipxe' package, and tested above on wily.

  If the open-iscsi package is installed in the image and the modules
  available, in the initramfs you can then do:

  (initramfs) modprobe iscsi_ibft
  [   11.444414] iBFT detected.
  (initramfs) cat /sys/firmware/ibft/target0/nic-assoc
  0
  (initramfs) cat /sys/firmware/ibft/target0/target-name
  mytest
  (initramfs) cat /sys/firmware/ibft/target0/port
  3260
  (initramfs) cat /sys/firmware/ibft/ethernet0/mac
  52:54:00:12:34:56
  (initramfs) for x in /sys/class/net/*/address; do echo $x; cat $x; done
  /sys/class/net/eth0/address
  52:54:00:12:34:56
  /sys/class/net/lo/address
  00:00:00:00:00:00

  Related bugs:
   * bug 1511008:  add open-iscsi to cloud image 

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: linux-image-4.2.0-16-generic 4.2.0-16.19
  ProcVersionSignature: User Name 4.2.0-16.19-generic 4.2.3
  Uname: Linux 4.2.0-16-generic x86_64
  AlsaDevices:
   total 0
   crw-rw---- 1 root audio 116,  1 Oct 27 14:58 seq
   crw-rw---- 1 root audio 116, 33 Oct 27 14:58 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.19.1-0ubuntu4
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  CRDA: N/A
  Date: Wed Oct 28 15:50:04 2015
  Ec2AMI: ami-00000661
  Ec2AMIManifest: FIXME
  Ec2AvailabilityZone: nova
  Ec2InstanceType: m1.small
  Ec2Kernel: unavailable
  Ec2Ramdisk: None
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: OpenStack Foundation OpenStack Nova
  PciMultimedia:

  ProcEnviron:
   TERM=screen
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB:

  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-16-generic root=LABEL=cloudimg-rootfs ro console=tty1 console=ttyS0
  RelatedPackageVersions:
   linux-restricted-modules-4.2.0-16-generic N/A
   linux-backports-modules-4.2.0-16-generic  N/A
   linux-firmware                            N/A
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/01/2014
  dmi.bios.vendor: SeaBIOS
  dmi.bios.version: 1.7.5-20150310_111955-batsu
  dmi.chassis.type: 1
  dmi.chassis.vendor: QEMU
  dmi.chassis.version: pc-i440fx-utopic
  dmi.modalias: dmi:bvnSeaBIOS:bvr1.7.5-20150310_111955-batsu:bd04/01/2014:svnOpenStackFoundation:pnOpenStackNova:pvr2015.1.1:cvnQEMU:ct1:cvrpc-i440fx-utopic:
  dmi.product.name: OpenStack Nova
  dmi.product.version: 2015.1.1
  dmi.sys.vendor: OpenStack Foundation

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References

[Bug 1511006] [NEW] move iscsi_ibft and iscsi_boot_sysfs to -virtual kernel
From: Scott Moser, 2015-10-28