Re: [ MOUNT ] Can not mount compact flash drive hda (ext3) with 2.6.16

[Helge Hafting]

Mario Ohnewald wrote:

> Hello List,
>
> i am booting a linux box via NFS. 
> When it boot it with a 2.4.32 kernel i CAN mount my compact flash drive
> hda.
>
> If i boot a 2.6.16 kernel i CAN NOT.
>
>
> hdaX is ext3 and ext3 is compiled into the kernel.
> Am i missing a kernel option?
>
> More infos:
>
> ~# fdisk -l
>
> Disk /dev/hda: 1024 MB, 1024450560 bytes
> 32 heads, 63 sectors/track, 992 cylinders
> Units = cylinders of 2016 * 512 = 1032192 bytes
>
>   Device Boot      Start         End      Blocks   Id  System
> /dev/hda1   *           1          73       73552+  83  Linux
> /dev/hda2              74         751      683424   83  Linux
> /dev/hda3             752         799       48384   83  Linux
> /dev/hda4             800         992      194544   83  Linux
>
> ~# mount
> rootfs on / type rootfs (rw)
> /dev/root on / type nfs
> (rw,v2,rsize=4096,wsize=4096,hard,nolock,proto=udp,addr=192.168.1.252)
> proc on /proc type proc (rw)
> sysfs on /sys type sysfs (rw)
> usbfs on /proc/bus/usb type usbfs (rw)
> /dev/root on /dev/.static/dev type nfs
> (rw,v2,rsize=4096,wsize=4096,hard,nolock,proto=udp,addr=192.168.1.252)
> none on /dev type tmpfs (rw)
> tmpfs on /tmp type tmpfs (rw)
> devpts on /dev/pts type devpts (rw)
> tmpfs on /dev/shm type tmpfs (rw)
>
>
>  
proc/mounts is the interesting one - the "mount" command
gives you /etc/mtab which may be wrong.

> ~# cat /proc/mounts
> rootfs / rootfs rw 0 0
> /dev/root / nfs
> rw,v2,rsize=4096,wsize=4096,hard,nolock,proto=udp,addr=192.168.1.252 0 0
> proc /proc proc rw 0 0
> sysfs /sys sysfs rw 0 0
> usbfs /proc/bus/usb usbfs rw 0 0
> /dev/root /dev/.static/dev nfs
> rw,v2,rsize=4096,wsize=4096,hard,nolock,proto=udp,addr=192.168.1.252 0 0
> none /dev tmpfs rw 0 0
> tmpfs /tmp tmpfs rw 0 0
> devpts /dev/pts devpts rw 0 0
> tmpfs /dev/shm tmpfs rw 0 0
>
>  
no hda in use here

> ~# lsof | grep hda
> <no result>
>
>
> ~# dmesg | grep hda
>    ide0: BM-DMA at 0xe000-0xe007, BIOS settings: hda:pio, hdb:pio
> hda: TOSHIBA THNCF1G02PG, CFA DISK drive
> hda: max request size: 128KiB
> hda: 2000880 sectors (1024 MB) w/2KiB Cache, CHS=1985/16/63
> hda: hda1 hda2 hda3 hda4
>
> ~# mount -t ext3 /dev/hda1 /mnt/
> mount: /dev/hda1 already mounted or /mnt/ busy
>  
There is a hda, it is a 1GB disk, and it has four partitions.  The
four partitions are correct?

There are other ways hda1 could be busy, such as used for swap
or member of a RAID array.  But I guess this is not the case here?

> ~# mkfs.ext3 /dev/hda1
> mke2fs 1.38 (30-Jun-2005)
> /dev/hda1 is apparently in use by the system; will not make a filesystem
> here!
>
>  
Well, you could try the -F (force) option and see what happens.
Just make sure "hda1" doesn't somehow refer to another device
in the system.


You may also want to try
cfdisk /dev/hda
and see that the partition layout is the same as with 2.4,
and you might want to check if cat /dev/hda > /dev/null works.
This is all very strange, but more data might get more people interested.

Helge Hafting
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