[Bug 776633] Re: grub-installer fails if root is on 27th disk

[Phillip Susi]

*** This bug is a duplicate of bug 335174 ***
    https://bugs.launchpad.net/bugs/335174

** This bug has been marked a duplicate of bug 335174
   Machines with > 16 drives not supported

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Title:
  grub-installer fails if root is on 27th disk

Status in “grub-installer” package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: debian-installer

  I tried installing ubuntu-server 11.04 on a real system with 28 disks,
  where the disk I wanted to use as the root partition happened to be
  enumerated as /dev/sdaa (notice the two "a"s -- /dev/sda through
  /dev/sdaz are used, and then /dev/sdaa is the next disk).  The
  installer made it most of the way through, but the grub-installer step
  failed.

  I tried this in a virtual environment (for easier reproduction), and
  did:

      for i in $(seq -f'%02.0f' 28); do qemu-img create -f qcow2 d$i 4g;
  done

  to make 28 virtual drives (the qcow2 format means this uses minimal
  disk space), and then:

      kvm -net nic,model=virtio -net user -m 1024 -vga vmware -usbdevice tablet -smp 2 -vnc :1 \
      -drive file=/home/roland/ubuntu-11.04-server-amd64.iso,media=cdrom,if=ide,boot=on \
      -drive file=d01,if=virtio,format=qcow2 \
      -drive file=d02,if=virtio,format=qcow2 \
      -drive file=d03,if=virtio,format=qcow2 \
      -drive file=d04,if=virtio,format=qcow2 \
      -drive file=d05,if=virtio,format=qcow2 \
      -drive file=d06,if=virtio,format=qcow2 \
      -drive file=d07,if=virtio,format=qcow2 \
      -drive file=d08,if=virtio,format=qcow2 \
      -drive file=d09,if=virtio,format=qcow2 \
      -drive file=d10,if=virtio,format=qcow2 \
      -drive file=d11,if=virtio,format=qcow2 \
      -drive file=d12,if=virtio,format=qcow2 \
      -drive file=d13,if=virtio,format=qcow2 \
      -drive file=d14,if=virtio,format=qcow2 \
      -drive file=d15,if=virtio,format=qcow2 \
      -drive file=d16,if=virtio,format=qcow2 \
      -drive file=d17,if=virtio,format=qcow2 \
      -drive file=d18,if=virtio,format=qcow2 \
      -drive file=d19,if=virtio,format=qcow2 \
      -drive file=d20,if=virtio,format=qcow2 \
      -drive file=d21,if=virtio,format=qcow2 \
      -drive file=d22,if=virtio,format=qcow2 \
      -drive file=d23,if=virtio,format=qcow2 \
      -drive file=d24,if=virtio,format=qcow2 \
      -drive file=d25,if=virtio,format=qcow2 \
      -drive file=d26,if=virtio,format=qcow2 \
      -drive file=d27,if=virtio,format=qcow2 \
      -drive file=d28,if=virtio,format=qcow2

  (the first two lines can be tweaked for your ISO location and UI
  preferences).  In this VM, I chose to use whole disk on /dev/vdaa in
  the partitioner, and I got the same error with grub-installer failing.

  I'm currently poking around the grub-installer script to see what
  exactly is failing.  In /var/log/syslog (in the installer), I just
  see:

      WARNING **: Configuring 'grub-installer' failed with error code 1

  but no diagnostics from grub-installer that I can find.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: debian-installer (not installed)
  Uname: Linux 2.6.39-999-generic x86_64
  Architecture: amd64
  Date: Tue May  3 11:26:53 2011
  EcryptfsInUse: Yes
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20101206)
  MachineType: LENOVO 2901CTO
  MemoryUsage:
   total       used       free     shared    buffers     cached
   Mem:       7987000    7830544     156456          0     290636    5617776
   -/+ buffers/cache:    1922132    6064868
   Swap:      1738748        620    1738128
  ProcEnviron:
   LANGUAGE=en_US:en
   PATH=(custom, user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.39-999-generic root=UUID=ab1e5491-e40c-4113-bf20-22ecb604999a ro drm.debug=0xe
  SourcePackage: debian-installer
  UpgradeStatus: Upgraded to natty on 2011-03-24 (39 days ago)
  dmi.bios.date: 10/27/2010
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 6UET61WW (1.41 )
  dmi.board.name: 2901CTO
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvr6UET61WW(1.41):bd10/27/2010:svnLENOVO:pn2901CTO:pvrThinkPadT410s:rvnLENOVO:rn2901CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 2901CTO
  dmi.product.version: ThinkPad T410s
  dmi.sys.vendor: LENOVO

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