grub install failed on XSP m1730 raid striping

[Lukav]

Don't know where the error was exactly.
This was my second try since the first didn't manage to install grub

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: ubiquity 2.8.7
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic x86_64
ApportVersion: 1.23-0ubuntu3
Architecture: amd64
CasperVersion: 1.287
Date: Tue Oct 18 23:11:44 2011
LiveMediaBuild: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
ProcEnviron:
 LANGUAGE=bg_BG.UTF-8
 PATH=(custom, no user)
 LANG=bg_BG.UTF-8
 SHELL=/bin/bash
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)

[Ubuntu Foundations Team Bug Bot (crichton)]

Exception during installation:
Oct 18 23:11:39 ubuntu plugininstall.py: Traceback (most recent call last):
Oct 18 23:11:39 ubuntu plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 1641, in <module>
Oct 18 23:11:39 ubuntu plugininstall.py: install.run()
Oct 18 23:11:39 ubuntu plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 55, in wrapper
Oct 18 23:11:39 ubuntu plugininstall.py: func(self)
Oct 18 23:11:39 ubuntu plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 199, in run
Oct 18 23:11:39 ubuntu plugininstall.py: self.configure_bootloader()
Oct 18 23:11:39 ubuntu plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 944, in configure_bootloader
Oct 18 23:11:39 ubuntu plugininstall.py: old_bootdev = self.db.get('grub-installer/bootdev')
Oct 18 23:11:39 ubuntu plugininstall.py: File "/usr/lib/python2.7/dist-packages/debconf.py", line 60, in <lambda>
Oct 18 23:11:39 ubuntu plugininstall.py: lambda *args, **kw: self.command(command, *args, **kw))
Oct 18 23:11:39 ubuntu plugininstall.py: File "/usr/lib/python2.7/dist-packages/debconf.py", line 65, in command
Oct 18 23:11:39 ubuntu plugininstall.py: self.write.flush()
Oct 18 23:11:39 ubuntu plugininstall.py: IOError: [Errno 32] Broken pipe
Oct 18 23:11:39 ubuntu plugininstall.py:

[Brian Murray (brian-murray)]

Oct 18 23:11:34 ubuntu grub-installer: info: architecture: amd64/generic
Oct 18 23:11:34 ubuntu ubiquity: grub-probe: error:
Oct 18 23:11:34 ubuntu ubiquity:
Oct 18 23:11:34 ubuntu ubiquity: cannot find a device for / (is /dev mounted?)
Oct 18 23:11:34 ubuntu ubiquity: .
Oct 18 23:11:34 ubuntu ubiquity: grub-probe: error:
Oct 18 23:11:34 ubuntu ubiquity: cannot find a device for /boot (is /dev mounted?).
Oct 18 23:11:35 ubuntu grub-installer: info: Identified partition label for /dev/mapper/isw_hbdhabjcj_Volume0p1: loop
Oct 18 23:11:36 ubuntu grub-installer: dpkg: предупреждение: there's no installed package matching grub
Oct 18 23:11:36 ubuntu grub-installer: dpkg: предупреждение: there's no installed package matching grub-legacy
Oct 18 23:11:36 ubuntu grub-installer: dpkg: предупреждение: there's no installed package matching grub-efi
Oct 18 23:11:36 ubuntu grub-installer: dpkg: предупреждение: there's no installed package matching grub-efi-amd64-bin
Oct 18 23:11:36 ubuntu grub-installer: dpkg: предупреждение: there's no installed package matching grub-efi-amd64
Oct 18 23:11:36 ubuntu grub-installer: dpkg: предупреждение: there's no installed package matching grub-efi-ia32-bin
Oct 18 23:11:36 ubuntu grub-installer: dpkg: предупреждение: there's no installed package matching grub-efi-ia32
Oct 18 23:11:37 ubuntu grub-installer: info: Installing grub on '/dev/mapper/isw_hbdhabjcj_Volume0'
Oct 18 23:11:37 ubuntu grub-installer: info: grub-install supports --no-floppy
Oct 18 23:11:37 ubuntu grub-installer: info: Running chroot /target grub-install --no-floppy --force "/dev/mapper/isw_hbdhabjcj_Volume0"
Oct 18 23:11:37 ubuntu grub-installer: /usr/sbin/grub-probe: error:
Oct 18 23:11:37 ubuntu grub-installer:
Oct 18 23:11:37 ubuntu grub-installer: cannot find a device for /boot/grub (is /dev mounted?)
Oct 18 23:11:37 ubuntu grub-installer: .
Oct 18 23:11:37 ubuntu grub-installer: error: Running 'grub-install --no-floppy --force "/dev/mapper/isw_hbdhabjcj_Volume0"' failed.