[Bug 1833296] Re: /dev/mapper is empty after disk replacement

[Tomáš Komárek]

** Package changed: ubuntu => dmraid (Ubuntu)

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https://bugs.launchpad.net/bugs/1833296

Title:
  /dev/mapper is empty after disk replacement

Status in dmraid package in Ubuntu:
  New

Bug description:
  Hello,

  I've got this fakeraid installed in my box:

  01:00.0 RAID bus controller: Silicon Image, Inc. SiI 3132 Serial ATA
  Raid II Controller (rev 01)

  I've replaced the drive and the device in /dev/mapper is no more
  available.

  I've tried to rebuild the raid, and try to activate it using the
  dmraid utility, but the output is always the same:

  no raid disks

  I can see my drives as a block device (via option -b), but it is not
  discovered:

  # dmraid -s -vvvv -dddd  | grep sdb
  NOTICE: /dev/sdb: asr     discovering
  NOTICE: /dev/sdb: ddf1    discovering
  NOTICE: /dev/sdb: hpt37x  discovering
  NOTICE: /dev/sdb: hpt45x  discovering
  NOTICE: /dev/sdb: isw     discovering
  NOTICE: /dev/sdb: jmicron discovering
  NOTICE: /dev/sdb: lsi     discovering
  NOTICE: /dev/sdb: nvidia  discovering
  NOTICE: /dev/sdb: pdc     discovering
  NOTICE: /dev/sdb: sil     discovering
  NOTICE: /dev/sdb: via     discovering

  
  I've got this Ubuntu release:

  root at media-server:/home/admin# lsb_release -rd
  Description:    Ubuntu 18.04.2 LTS
  Release:        18.04

  I've seen these devices before the replacement and upgrade:

  /dev/mapper/sil_bjagagcbafdh3
  /dev/mapper/sil_bjagagcbafdh1
  /dev/mapper/sil_bjagagcbafdh2    

  I would like to get the device mapper back so I can utilize the raid
  functionality.

  Thanks a lot for any help.

  Tom

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