Sorry for this full-quote; I think it might be useful if you could add your information to the bug reported as #404927 (http://bugs.debian.org/404927) for udev people to work around this or kernel folks fix this.
Best,
Michael
[...]
>
> I get the same problem here on an IBM 3950, my sda device belongs to
> group floppy.
> I use a Lenny nfsroot.
>
> there is something about that in the udev rules : (91-permissions.rules)
> # default permissions for block devices
> SUBSYSTEM=="block", GROUP="disk"
> # the aacraid driver is broken and reports that disks removable (see
> #404927)
> SUBSYSTEM=="block", ATTRS{removable}=="1", \
> DRIVERS!="aacraid", GROUP="floppy"
>
> but I doesn't seems to work well...
>
> # udevinfo -a -p `udevinfo -q path -n /dev/sda` |less
>
> Udevinfo starts with the device specified by the devpath and then
> walks up the chain of parent devices. It prints for every device
> found, all possible attributes in the udev rules key format.
> A rule to match, can be composed by the attributes of the device
> and the attributes from one single parent device.
>
> looking at device '/block/sda':
> KERNEL=="sda"
> SUBSYSTEM=="block"
> DRIVER==""
> ATTR{range}=="16"
> ATTR{removable}=="1"
> ATTR{size}=="715776000"
> ATTR{capability}=="13"
> ATTR{stat}==" 18411 8485 38139 8224 8355 468795
> 2432659 946228 0 13240 954448"
>
> looking at parent device
> '/devices/pci0000:01/0000:01:02.0/host0/target0:0:0/0:0:0:0':
> KERNELS=="0:0:0:0"
> SUBSYSTEMS=="scsi"
> DRIVERS=="sd"
> ATTRS{device_blocked}=="0"
> ACTION!="add|change", GOTO="permissions_end"
>
> SUBSYSTEMS=="scsi"
> DRIVERS=="sd"
> ATTRS{device_blocked}=="0"
> ATTRS{type}=="0"
> ATTRS{scsi_level}=="3"
> ATTRS{vendor}=="IBM "
> ATTRS{model}=="A "
> ATTRS{rev}=="V1.0"
> ATTRS{state}=="running"
> ATTRS{timeout}=="45"
> ATTRS{iocounterbits}=="32"
> ATTRS{iorequest_cnt}=="0x6b48"
> ATTRS{iodone_cnt}=="0x6b48"
> ATTRS{ioerr_cnt}=="0x1"
> ATTRS{modalias}=="scsi:t-0x00"
> ATTRS{evt_media_change}=="0"
> ATTRS{queue_depth}=="256"
> ATTRS{queue_type}=="ordered"
> ATTRS{level}=="RAID5"
>
> looking at parent device
> '/devices/pci0000:01/0000:01:02.0/host0/target0:0:0':
> KERNELS=="target0:0:0"
> SUBSYSTEMS==""
> DRIVERS==""
>
> looking at parent device '/devices/pci0000:01/0000:01:02.0/host0':
> KERNELS=="host0"
> SUBSYSTEMS==""
> DRIVERS==""
>
> looking at parent device '/devices/pci0000:01/0000:01:02.0':
> KERNELS=="0000:01:02.0"
> SUBSYSTEMS=="pci"
> DRIVERS=="aacraid"
> ATTRS{vendor}=="0x9005"
> ATTRS{device}=="0x0285"
> ATTRS{subsystem_vendor}=="0x1014"
> ATTRS{subsystem_device}=="0x02f2"
> ATTRS{class}=="0x010400"
> ATTRS{irq}=="28"
> ATTRS{local_cpus}=="0000ffff"
> ATTRS{local_cpulist}=="0-15"
>
> ATTRS{modalias}=="pci:v00009005d00000285sv00001014sd000002F2bc01sc04i00"
> ATTRS{numa_node}=="0"
> ATTRS{enable}=="1"
> ATTRS{broken_parity_status}=="0"
> ATTRS{msi_bus}==""
>
> looking at parent device '/devices/pci0000:01':
> KERNELS=="pci0000:01"
> SUBSYSTEMS==""
> DRIVERS==""
>
>
>
> My workaround for now is to accept devices recognised as "floppy"...
> /srv/fai/nfsroot/lenny-i386/live/filesystem.dir/usr/lib/fai/disk-info
>
> [ `stat -c %G /dev/$device` = "disk" ] || [ `stat -c %G /dev/$device` =
> "floppy" ] || isdisk=0
>
> It's not the best way, but it do the trick...
>
> --
> Mathieu Alorent
> Shell&Core Sophia-Antipolis
> AUSY
> Pour France Telecom – OPF/PORTAILS/DOP/HEBEX/SOPHIA
>
> Tél: 04 97 12 6226
>
> malorent....@orange-ftgroup.com
>
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