** No longer affects: linux (Ubuntu Trusty)
** Summary changed:
- block devices appear twice
+ block devices appear twice [install does not use multipath]
** No longer affects: multipath-tools (Ubuntu Trusty)
** No longer affects: multipath-tools (Ubuntu Vivid)
** Also affects: curtin
** Branch linked: lp:ubuntu/curtin
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Title:
block devices appear twice
Status in curtin package in Ubuntu:
Fix Released
Status in
Mike,
Please move issues with multipath (like are shown in that log) to bug 1462530.
Stefan had actually asked for almost exactly what you captured.
This bug is fixed as we're now booting into system correctly with
multipath enabled from installation under curtin.
I'll copy your comment and
I have tried the latest curtin-common and python-curtin from the wily
repositories running on 14.04.2:
#leftyfb@maaster[0]:~$ apt-cache policy curtin-common
curtin-common:
Installed: 0.1.0~bzr214-0ubuntu1
Candidate: 0.1.0~bzr214-0ubuntu1
Version table:
*** 0.1.0~bzr214-0ubuntu1 0
** Also affects: multipath-tools (Ubuntu Trusty)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Trusty)
Importance: Undecided
Status: New
** Also affects: curtin (Ubuntu Trusty)
Importance: Undecided
Status: New
** Also affects: multipath-tools
** Description changed:
$ sudo blkid
/dev/sr0: LABEL=Ubuntu-Server 14.04 LTS ppc64el TYPE=iso9660
/dev/sda2: UUID=795a6e14-ea4e-4718-9e98-c6df3696920c TYPE=ext4
/dev/sda3: UUID=0a91d81f-6a16-4b96-a92c-11ca8bdc4bf4 TYPE=swap
/dev/sdb2: UUID=1d14c1f3-716f-4fb8-9070-d321b39ffcb3 TYPE=ext4
** Branch linked: lp:curtin
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Title:
block devices appear twice
Status in curtin package in Ubuntu:
Confirmed
Status in linux
Mike, Oleg, others.
I've opened bug 1462530 to address the errors I'm seeing like those Mike
pointed at.
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Title:
block devices
This bug was fixed in the package curtin - 0.1.0~bzr213-0ubuntu1
---
curtin (0.1.0~bzr213-0ubuntu1) wily; urgency=medium
* New upstream snapshot.
* retry apt-get update to avoid transient failures (LP: #1403133)
* detect and handle multipath devices (LP: #1371634)
*
** Branch linked: lp:~strikov/curtin/multipath-2
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Title:
block devices appear twice
Status in curtin package in Ubuntu:
I tried following the above workaround on the IBM Power 8 twice on new
deployments. Attached is the log.
** Attachment added: multipath.log
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1371634/+attachment/4409977/+files/multipath.log
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** Description changed:
- $ sudo blkid
- /dev/sr0: LABEL=Ubuntu-Server 14.04 LTS ppc64el TYPE=iso9660
- /dev/sda2: UUID=795a6e14-ea4e-4718-9e98-c6df3696920c TYPE=ext4
- /dev/sda3: UUID=0a91d81f-6a16-4b96-a92c-11ca8bdc4bf4 TYPE=swap
- /dev/sdb2: UUID=1d14c1f3-716f-4fb8-9070-d321b39ffcb3
OK, so for trivial workaround fix, you can do:
a.) install with curtin as you have
b.) sudo apt-get install multipath-tools-boot
c.) printf defaults {\n\tuser_friendly_names yes\n}\n | sudo tee
/etc/multipath.conf
d.) sudo update-initramfs -u -k all
e.) sudo reboot
You'll come back up with
this script attempts to do the following for
img=working.img device=/dev/working0
img=broken.img device='/dev/broken 0'
- create a file $img
- partition it with sfdisk
- losetup a device pointing to $img
- kpartx -a -v -p -part $LODEV
run the script and you can see, it will work for
also just now verified that it is broken in debian's unstable version
also (0.5.0-7)
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Title:
block devices appear twice
Status in
verified the attached script also fails on both trusty and wily
trusty: 0.4.9-3ubuntu7.2
wily: 0.4.9-3ubuntu12
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Title:
block
Ok, so Oleg and I were looking at a solution, and figured we'd give the maybe
it just works path a try.
I installed a system, it installed onto /dev/sda (as this bug shows).
I then 'apt-get install multipath-tools-boot'
I rebooted, with the 'root=LABEL=cloudimg-rootfs' on the cmdline (as
Sorry for the vague comment earlier. What I meant was that, from a
certification point of view, I can't certify a system that ships by
default with dual RAID cards in a multipath configuration when
Multipathing in Ubuntu doesn't work. That leads to a scenario where,
out of the box on a fresh
I'm setting this to High for now... I really think this is critical as
it is gating the PowerNV certification work.
** Changed in: multipath-tools (Ubuntu)
Importance: Undecided = High
** Changed in: curtin (Ubuntu)
Importance: Undecided = High
** Changed in: curtin (Ubuntu)
Actually, on advice of Andy C, lets go ahead and consider this
critical... this cert needs to be completed as soon as possible and we
can't do that without multipathing working properly.
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Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: curtin (Ubuntu)
Status: New = Confirmed
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Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: multipath-tools (Ubuntu)
Status: New = Confirmed
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Quickly reading over the report I would think this is a result of the installer
bug I reported as bug #1447167. The problem is that if you configure a system
for multipath, it will present each path as an independent drive. And that
causes a lot of confusion when a system has data on those and
Related/possibly duplicate bug is bug 1447167.
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Title:
block devices appear twice
Status in curtin package in Ubuntu:
New
Status
** Also affects: curtin (Ubuntu)
Importance: Undecided
Status: New
** Also affects: multipath-tools (Ubuntu)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu)
Status: Confirmed = Invalid
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This is a multipath issue. The box has two cards with redundant paths to
each disk.
Multipath is meant to create /dev/mapper/mpath* devices, and the
installer should use them instead of the underlying /dev/sd* devices.
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Joseph,
I honestly don't know how the systems are set up. I suspect you're right,
that there are 2 physical disks raided together.
I don't think that changes the bug at all though.
The kernel should only show me one of those devices, right? If I configured
hardware raid to show 2 disks as
** Changed in: linux (Ubuntu)
Importance: Undecided = Medium
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Title:
block devices appear twice
Status in “linux” package in
It looks like you have a couple of RAID controllers in the machine. Do
you have them configured with and volumes, etc?
0003:04:00.0 RAID bus controller [0104]: IBM PCI-E IPR SAS Adapter (ASIC)
[1014:034a] (rev 01)
Subsystem: IBM PCIe3 x8 Cache SAS RAID Internal Adapter 6Gb (57D8)
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