[Bug 1153717] Re: /usr/sbin/grub-probe: error: no such disk during preseed install

[Leonardo Borda]

** Description changed:

- 1. Description of the problem: 
+ 1. Description of the problem:
  Preseed installation using full disk encryption works on a virtual machine but fails on bare metal with the following message at the end of the syslog file.
  
  The machine used is using a Dell PERC H310 PCIe host-based RAID card
- which is considered fake-RAID.
+ which "seems" to be considered fake-RAID.
  
  Mar  7 13:41:23 grub-installer: info: Installing grub on '/dev/sda'
  Mar  7 13:41:23 grub-installer: info: grub-install supports --no-floppy
  Mar  7 13:41:23 grub-installer: info: Running chroot /target grub-install  --no-floppy --force "/dev/sda"
  Mar  7 13:41:24 grub-installer: /usr/sbin/grub-probe: error: no such disk.
  Mar  7 13:41:24 grub-installer: Auto-detection of a filesystem of /dev/mapper/vg-root failed.
  
  An output if the following command is attached to this bug.
- mount --bind /proc /target/proc 
- mount --bind /dev /target/dev 
- mount --bind /sys /target/sys 
- chroot /target 
- /usr/sbin/grub-probe --device-map="/boot/grub/device.map" --target=fs -vv /boot/grub > grub-probe.out 2>&1 
+ mount --bind /proc /target/proc
+ mount --bind /dev /target/dev
+ mount --bind /sys /target/sys
+ chroot /target
+ /usr/sbin/grub-probe --device-map="/boot/grub/device.map" --target=fs -vv /boot/grub > grub-probe.out 2>&1
  
  2. Ubuntu release, software version, Release Number and Architecture of
  the selected components.
  
  Ubuntu 12.04.2 LTS
  64-bit PC (AMD64) alternate install CD - http://releases.ubuntu.com/precise/ubuntu-12.04.2-alternate-amd64.iso

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https://bugs.launchpad.net/bugs/1153717

Title:
  /usr/sbin/grub-probe: error: no such disk during preseed install

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

Bug description:
  1. Description of the problem:
  Preseed installation using full disk encryption works on a virtual machine but fails on bare metal with the following message at the end of the syslog file.

  The machine used is using a Dell PERC H310 PCIe host-based RAID card
  which "seems" to be considered fake-RAID.

  Mar  7 13:41:23 grub-installer: info: Installing grub on '/dev/sda'
  Mar  7 13:41:23 grub-installer: info: grub-install supports --no-floppy
  Mar  7 13:41:23 grub-installer: info: Running chroot /target grub-install  --no-floppy --force "/dev/sda"
  Mar  7 13:41:24 grub-installer: /usr/sbin/grub-probe: error: no such disk.
  Mar  7 13:41:24 grub-installer: Auto-detection of a filesystem of /dev/mapper/vg-root failed.

  An output if the following command is attached to this bug.
  mount --bind /proc /target/proc
  mount --bind /dev /target/dev
  mount --bind /sys /target/sys
  chroot /target
  /usr/sbin/grub-probe --device-map="/boot/grub/device.map" --target=fs -vv /boot/grub > grub-probe.out 2>&1

  2. Ubuntu release, software version, Release Number and Architecture
  of the selected components.

  Ubuntu 12.04.2 LTS
  64-bit PC (AMD64) alternate install CD - http://releases.ubuntu.com/precise/ubuntu-12.04.2-alternate-amd64.iso

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