some question about mdev

[loody]

hi all:

2010/5/23 loody <miloody at gmail.com>:
> hi Denys:
>
> 2010/5/23 Denys Vlasenko <vda.linux at googlemail.com>:
>> On Saturday 22 May 2010 14:33, loody wrote:
>>> Dear all:
>>> I use mdev to handle hotplug event under linux.
>>> it runs fine when I plug/unplug usb flash.
>>> But it has some problem when I plug/unplug usb HD.
>>> Below are my partions I get when I plug my USB HD.
>>>
>>> # cat /proc/partitions
>>> major minor  #blocks  name
>>>
>>>    8        0    1972224 sda
>>>    8        1    1970546 sda1
>>>    8       16  156290904 sdb
>>>    8       17          1 sdb1
>>>    8       21  156280288 sdb5
>>> #
>>>
>>> and below is my mdev.conf
>>> sd[a-zA-Z][0-9]+ 0:0 0660 * /usr/bin/autoscript.sh $MDEV $LABEL
>>>
>>> As you can see, mdev will pass sdb1 to /usr/bin/autoscript.sh for mounting.
>>> But the partion cannot be mount.( from the information in
>>> /proc/partitions, it seems some place for data saving.)
>>
>> Please show autoscript.sh, exact mount command parameters and its error message.
>> Also, what "cat /proc/filesystems" says? What is your busybox version?
>>
>> --
>> vda
>>
>
> I guess my problem comes from 2 parts:
> 1. Mdev will pass every partition to autorun.sh for mounting.
> But in my case, there is a super block partition. ( like the extension
> partition)
> 2. when mdev pass different format partitions to autorun.sh,
> autorun.sh should use different mount parameters for mounting. But it
> doesn't.
>
> my questions are:
> 1. how could I stop mdev to pass the superblock partition to autorun.sh
> 2. is there additional paramter that mdev can pass to shell such that
> they can know the format is different?
> BR,
> miloody
>
> below is my autorun.sh
>
> #! /bin/sh
> if [ "$1" == "" ]; then
> echo "parameter is none" > /tmp/error.txt
> exit 1
> fi
> mounted=`mount | grep $1 | cut -d ' ' -f 3`
>
> if [ ! -z $mounted ]; then
>        echo "R$mounted" >> /tmp/usbmnt.log
>        echo "R$mounted" > /tmp/fifo.1
>        if ! umount "$mounted"; then
>        exit 1
>        fi
>        if ! rmdir "$mounted"; then
>        exit 1
>        fi
> else
>        if [ -z "$2" ];then
>                dir=$1
>        else
>                dir=$2
>        fi
>        if ! mkdir -p "/media/$dir"; then
>        exit 1
>        fi
>
>        if ! mount -o codepage=437,iocharset=iso8859-1,utf8 "/dev/$1"
> "/media/$dir"; then
>        if ! rmdir "/media/$dir"; then
>        exit 1
>        fi
>        exit 1
>        fi
>        echo "A/media/$dir" >> /tmp/usbmnt.log
>        echo "A/media/$dir" > /tmp/fifo.1
> fi
> exit 0
>
> below is my /proc/filesystems
> # cat /proc/filesystems
> nodev   sysfs
> nodev   rootfs
> nodev   bdev
> nodev   proc
> nodev   sockfs
> nodev   pipefs
> nodev   anon_inodefs
> nodev   tmpfs
> nodev   inotifyfs
> nodev   devpts
>        ext3
>        ext2
> nodev   ramfs
>        vfat
> nodev   nfs
> nodev   cifs
>        ntfs
> nodev   rpc_pipefs
>
> and below is my dmesg scsi pops out
> sd 11:0:0:0: [sda] 312581808 512-byte hardware sectors: (160 GB/149 GiB)
> sd 11:0:0:0: [sda] Write Protect is off
> sd 11:0:0:0: [sda] Mode Sense: 03 00 00 00
> sd 11:0:0:0: [sda] Assuming drive cache: write through
> sd 11:0:0:0: [sda] Assuming drive cache: write through
>  sda: sda1 < sda5 >
> sd 11:0:0:0: [sda] Attached SCSI disk
>

I find an ungly to fix it.
just put all the different mount in my autorun.sh
like
if ! mount -t vfat -o codepage=437,iocharset=iso8859-1,utf8 "/dev/$1"
"/media/$dir"
if ! mount -t ntfs -o codepage=437,iocharset=iso8859-1,utf8 "/dev/$1"
"/media/$dir"
if ! mount -t ext3 -o codepage=437,iocharset=iso8859-1,utf8 "/dev/$1"
"/media/$dir"
but they are really silly methods.
Did the ubuntu, cenos does the same thing?
appreciate your help,
miloody