On 03/17/2011 08:52 AM, JB wrote:
> James McKenzie<jjmckenzie51<at> gmail.com> writes:
>
>> On Thu, Mar 17, 2011 at 1:41 AM, xinyou yan<yxy.716<at> gmail.com> wrote:
>>> I have a freebsd system.
>>> In my computer /dev/sda10 is a freebsd slice.
>>>
>>> I use mount -t ufs /dev/sda10 /tmp
>>> It fail.
>>>
>>> mount: wrong fs type, bad option, bad superblock on /dev/sda10,
>>> missing codepage or helper program, or other error
>>> In some cases useful info is found in syslog - try
>>> dmesg | tail or so
>>>
>>> How can i mount it?
>> Are you trying to mount this in Fedora?
>>
>> You can try the suggestions JB gave, but FreeBSD might not be using
>> the Unix File System.
>>
>> James McKenzie
> What is actually happening here ?
>
> I have FreeBSD on /dev/sda2.
>
> I do these entries from Fedora 14.
>
> # cfdisk
> Disk Drive: /dev/sda
> ...
> Name Flags Part Type FS Type [Label] Size (MB)
> ------------------------------------------------------------------------------
> sda1 Primary ntfs 41943.13
> sda2 Boot Primary ufs 15002.92
> sda3 Primary ext4 15002.92
> sda5 Logical swap 3003.68
> sda6 Logical ext3 [backup] 5999.62
> sda7 Logical ext4 [Fedora] 15002.92
>
> # cat /proc/filesystems |grep -i ufs
> ufs
>
> # lsmod |grep -i ufs
> ufs 56786 0
>
> # mount -t auto /dev/sda2 /media/
> mount: wrong fs type, bad option, bad superblock on /dev/sda2,
> missing codepage or helper program, or other error
> In some cases useful info is found in syslog - try
> dmesg | tail or so
>
> # dmesg |tail
> ...
> [170746.287197] ufs_read_super: bad magic number
> [170949.612767] ufs_read_super: bad magic number
> [170974.503724] ufs_read_super: bad magic number
> [171012.600483] ufs was compiled with read-only support, can't be mounted as
> read-write
> [171043.129655] ufs was compiled with read-only support, can't be mounted as
> read-write
> [171872.818069] ufs was compiled with read-only support, can't be mounted as
> read-write
>
> # man mount
> ...
> -t, --types vfstype
> The argument following the -t is used to indicate the filesystem
> type. The filesystem types which are currently supported
> include: ...
> ..., ufs, ...
> ...
> Mount options for ufs
> ufstype=value
> UFS is a filesystem widely used in different operating systems.
> The problem are differences among implementations. Features of
> some implementations are undocumented, so its hard to recognize
> the type of ufs automatically. That's why the user must specify
> the type of ufs by mount option. Possible values are:
>
> old Old format of ufs, this is the default, read only.
> (Don't forget to give the -r option.)
>
> 44bsd For filesystems created by a BSD-like system
> (NetBSD,FreeBSD,OpenBSD).
> ...
>
> # mount -t ufs -o ro,ufstype=44bsd /dev/sda2 /media/
> mount: wrong fs type, bad option, bad superblock on /dev/sda2,
> missing codepage or helper program, or other error
> In some cases useful info is found in syslog - try
> dmesg | tail or so
>
> # mount -v -t auto /dev/sda2 /media/
> mount: you didn't specify a filesystem type for /dev/sda2
> I will try type ufs
> mount: wrong fs type, bad option, bad superblock on /dev/sda2,
> missing codepage or helper program, or other error
> In some cases useful info is found in syslog - try
> dmesg | tail or so
>
> # mount -vf -t auto /dev/sda2 /media/
> /dev/sda2 on /media type auto (rw)
>
> # df
> Filesystem 1K-blocks Used Available Use% Mounted on
> /dev/sda7 14420896 7413796 5541976 58% /
> tmpfs 1025992 448 1025544 1% /dev/shm
> /dev/sda2 14420896 7413796 5541976 58% /media<========
>
> [root@localhost jb]# mount
> ...
> /dev/sda2 on /media type auto (rw)<========
>
> # cat /proc/mounts
> ...
> <====== ???
>
> # ls -al /media
> total 8
> drwxr-xr-x. 2 root root 4096 Mar 17 15:54 .
> dr-xr-xr-x. 23 root root 4096 Mar 14 14:01 ..
> -rw-r--r-- 1 root root 0 Mar 14 14:01 .hal-mtab
>
> JB
>
>
Hi all,
As I replied to the original OP, the UFS port in linux
might not be able to mount FreeBSD drives/partitions/slices
if the FreeBSD is sufficiently more recent than the original
UFS port to Linux. A lot of things have changed, and hardly
any attention has been given to the UFS port.
The configuration help menu says:
UFS file system support (read only) (UFS_FS)
CONFIG_UFS_FS:
BSD and derivate versions of Unix (such as SunOS, FreeBSD, NetBSD,
OpenBSD and NeXTstep) use a file system called UFS. Some System V
Unixes can create and mount hard disk partitions and diskettes using
this file system as well. Saying Y here will allow you to read from
these partitions; if you also want to write to them, say Y to the
experimental "UFS file system write support", below. Please read the
file <file:Documentation/filesystems/ufs.txt> for more information.
The recently released UFS2 variant (used in FreeBSD 5.x) is
READ-ONLY supported.
Note that this option is generally not needed for floppies, since a
good portable way to transport files and directories between unixes
(and even other operating systems) is given by the tar program ("man
tar" or preferably "info tar").
When accessing NeXTstep files, you may need to convert them from the
NeXT character set to the Latin1 character set; use the program
recode ("info recode") for this purpose.
To compile the UFS file system support as a module, choose M here: the
module will be called ufs.
If you haven't heard about all of this before, it's safe to say N.
Symbol: UFS_FS [=m]
Type : tristate
Prompt: UFS file system support (read only)
Defined at fs/ufs/Kconfig:1
Depends on: MISC_FILESYSTEMS [=y] && BLOCK [=y] && BKL [=y]
Location:
-> File systems
-> Miscellaneous filesystems (MISC_FILESYSTEMS [=y])
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