[Bug 52956] Invitation to connect on LinkedIn

[Dennis Gesker]

LinkedIn
------------


Bug,

I'd like to add you to my professional network on LinkedIn.

- Dennis

Dennis Gesker
Operations Manager at Alamon Telco, Inc.
Missoula, Montana Area

Confirm that you know Dennis Gesker:
https://www.linkedin.com/e/g5l3ur-h4loq05u-1i/isd/7850121594/H6zTPu7F/?hs=false&tok=1rhQxvqlNFlRk1

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https://bugs.launchpad.net/bugs/52956

Title:
  Improper Installation with Adaptec RAID 2010S

Status in “debian-installer” package in Ubuntu:
  Invalid

Bug description:
  Problem:

  Installing Dapper Server on a system with an Adaptec RAID 2010S card
  installs correctly, but when the system reboots to the installed OS,
  the kernel cannot find the RAID card, and thus, fails to find the hard
  drive.

  Cause:

  There are 2 drivers in the kernel for the Adaptec RAID card:  dpt_i2o
  and i2o_block.  If dpti2o is used, the card is seen as "/dev/sda" (ie,
  a scsi device).  If i2o_block is used, it is seen as "/dev/i2o/hda"
  (ie an i2o device).  For some reason, the install CD loads the
  i2o_block module, and thus installs the OS to "/dev/i2o/hda".
  However, when the system boots the installed OS, since it, by default,
  loads "most" drivers, it loads both drivers, beginning in alphabetical
  order with "dpt_i2o".  So, since dpt_i2o is loaded, i2o_block cannot
  be loaded afterwards (since the device is already controlled by
  dpt_i2o), and thus the installed OS looks for "/dev/i2o/hda" but
  cannot find it, because the system only knows "/dev/sda".

  Steps to reproduce:

  1.  Install dapper server to a system with hardware RAID and an Adaptec 2010S raid card.
  2.  Install should complete normally, but upon reboot you will get errors about how the device is already claimed by another driver and the boot will fail and drop you into the initramfs shell.  From there, an "lsmod" will show that the dpt_i2o module is loaded and not i2o_block.

  Suggested fix:

  1.  Either the install CD should be told to use the dpt_i2o driver, or;
  2.  The installed OS should *not* load the dpt_i2o driver.

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