[Bug 1769039] Comment bridged from LTC Bugzilla
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Sat May 12 09:40:37 UTC 2018
------- Comment From indira.priya at in.ibm.com 2018-05-12 05:33 EDT-------
(In reply to comment #24)
> Right vorlon.
> Actually this report is a bit unclear : 2 types of systems were tried :
> WitherSpoon system as well as VM with 2 installation methods : netboot and
> cdrom .
>
> It's reported that it failed with netboot then succeeded later on (so I
> suspected some driver udeb not downloaded/available at this point).
> But then Chethan reported : "The things are not working still w.r.t boslcp3
> KVM guest. We tried to define a new guest and used both net/cdrom install
> method, it did not succeed"
> which I tried (VM/cdrom) and this worked for me.
>
> So Indira/Chethan, to avoid network issues or daily netboot instabilities,
> could you please try the cdrom
> installation method, and let us know (in particular on a VM, which I can
> more easily reproduce here) ?
> typically boslcp3g1 xml and cdrom installation.
>
> Compared to what I tried, in your qemu guest boslcp3g1 xml, the disk devices
> specified point to
> /dev/disk/by-id/dm-uuid-part[1-3]-mpath-3600507680183050d28000000000002a4
> and whether the bus is virtio or scsi, both should be supported : in this
> case the disks are seen through the VM's controller not the host which is
> supported by the bionic iso from my tests : I tried both configurations and
> they worked : disks are seen.
> Now it's just that with scsi, a multipath device is detected directly, which
> was not the case with virtio, but disks are still seen (maybe I miss some
> more configuration).
>
> Here are my virtio and scsi xml as well
Hi Federic,
I am facing issues with netboot installation on kvm guests, example
boslcp3g1 guest which is using SAN disk (mulitpath disks).I have tried
CDROM installation & installer is able to detect the disks properly.
To recreate the issue we can go with boslcp3g1 guest. Currently boslcp3
host is running with 4 guests already. Will try to bring down one guest
& work on recreation using boslcp3g1 guest.
Regards,
Indira
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https://bugs.launchpad.net/bugs/1769039
Title:
Ubuntu1804 installer is not able to detect SAN disks(mulitpath disks)
with 'No disk drive was detected' message.
Status in The Ubuntu-power-systems project:
New
Status in debian-installer package in Ubuntu:
Incomplete
Bug description:
Problem Description:
===================
Ubuntu1804 installer is not able to detect SAN disks(mulitpath disks) with 'No disk drive was detected' message.
Steps to re-create:
==================
> on Witherspoon test system, tried to install latest ubuntu1804 build
using netboot install.
> Selected appropriate fields and then when it entres detect disk
screen
> It throws below messgae
lqqqqqqqqqqqqqqqqqqqqqqqqqqu [!] Detect disks tqqqqqqqqqqqqqqqqqqqqqqqqqqqk
x x
x No disk drive was detected. If you know the name of the driver needed x
x by your disk drive, you can select it from the list. x
x x
x Driver needed for your disk drive: x
x x
x continue with no disk drive x
x login to iSCSI targets x
x cryptoloop x
x ipr x
x virtio_scsi x
x none of the above x
x x
x <Go Back> x
x x
mqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqj
> Installer not able to detect the SAN disk(mulitpath disks) and so
not able to proceed with installation.
> Unable to proceed with ubutnu1804 installation as installer not able
to detect the disk (SAN disks) using netboot install method
> Attached /var/log/syslog messages from installer
Attached /var/log/syslog files from installer shell prompt
== Comment: #13 - Frederic Bonnard <FREDERIC at fr.ibm.com> - 2018-04-30 09:00:21 ==
Hi,
- did you install install with "disk-detect/multipath/enable=true" ? ( https://help.ubuntu.com/lts/serverguide/multipath-setting-up-dm-multipath.html.en )
- check /var/log/syslog to see you didn't fail to download any udeb related to disk management and make sure there isn't any error .
- check availability of disks with lsblk or "find /dev/disk/ -ls"
F.
== Comment: #14 - INDIRA P. JOGA <indira.priya at in.ibm.com> - 2018-05-02 04:55:55 ==
(In reply to comment #12)
> Hi Indira, thanks for the bug. I have some questions I would like to
> understand better:
>
> What are the device subsystem that this disks are connected to? Is it a
> Fibre Channel connection?
>
> Do you have explicit two connections to the same disk? I.e, you would see
> two disks that the multipathd would need to detect that they are the same,
> or, your subsystem would handle the multi path configuration?
>
> How many disks do you have?
Hi Breno,
System has both SAS card with mulitpath & SAN card with mulitpath.
Yes we have two connections to same disk.
FYI -
SAN -
mpathb (3600507680183050d28000000000002a3) dm-1 IBM,2145
size=100G features='1 queue_if_no_path' hwhandler='0' wp=rw
|-+- policy='service-time 0' prio=50 status=active
| |- 2:0:1:1 sdaa 65:160 active ready running
| `- 3:0:1:1 sdag 66:0 active ready running
`-+- policy='service-time 0' prio=10 status=enabled
|- 2:0:0:1 sdx 65:112 active ready running
`- 3:0:0:1 sdad 65:208 active ready running
SAS -
mpathl (35000c50076564663) dm-35 IBM,ST300MP0064
size=279G features='0' hwhandler='0' wp=rw
|-+- policy='service-time 0' prio=1 status=active
| `- 1:0:8:0 sdi 8:128 active ready running
`-+- policy='service-time 0' prio=1 status=enabled
`- 1:0:19:0 sds 65:32 active ready running
== Comment: #15 - INDIRA P. JOGA <indira.priya at in.ibm.com> - 2018-05-02 05:01:21 ==
(In reply to comment #13)
> Hi,
> - did you install install with "disk-detect/multipath/enable=true" ? (
> https://help.ubuntu.com/lts/serverguide/multipath-setting-up-dm-multipath.
> html.en )
> - check /var/log/syslog to see you didn't fail to download any udeb related
> to disk management and make sure there isn't any error .
> - check availability of disks with lsblk or "find /dev/disk/ -ls"
>
> F.
Yes i have tried both with multipath enable true & without multipath
in both cases it failed. when problem reported guest has 3 disks and
still not able to detect those disks.
== Comment: #19 - Breno Leitao <brenohl at br.ibm.com> - 2018-05-03 09:02:54 ==
Let's get this mirrored to canonical for their awareness.
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