Mount UFS drive from DVD player

T

tadcan

I'm a total noob with BSD. A friend has a Sony DVD player with an internal harddrive. The drive was stuck in a loop, trying to consolidate. The drive has been formatted with UFS. After running desktopBSD the drive was recognized but gave an error 'Mounting the file system failed'.

If the drive can be accessed, files can be retrieved. Any advice?
 
I understand what you write as :

You have a device that contains a DVD player and an internal hard drive.

You believe the hard drive is UFS formatted.

Why would it be UFS formatted ? have your friend run a "newfs" or "mkfs" command
on the drive ?
In order for that to work the drive needs to have a (e)SATA connection to a unix
computer. Most portable DVD players are USB connected.

Anyway if it has a crashed UFS filesystem made by a BSD computer
I would try to run a file system check on it. program is named "fsck"

basic kommand syntax is :

# fsck -y [devicename]

You need to find the devicename for the unit in the /dev directory.

After a successfull fsck run you can again try to mount the file system .

If its a SOLARIS ufs file system you will need a computer with SOLARIS installed
because SUN made a lot of their own changes to the UFS file system
compared to Kirk McKusick's code.

//Lars
 
tunla said:
I understand what you write as :

You have a device that contains a DVD player and an internal hard drive.

You believe the hard drive is UFS formatted.

Why would it be UFS formatted ? have your friend run a "newfs" or "mkfs" command
on the drive ?
In order for that to work the drive needs to have a (e)SATA connection to a unix
computer. Most portable DVD players are USB connected.

Anyway if it has a crashed UFS filesystem made by a BSD computer
I would try to run a file system check on it. program is named "fsck"

basic kommand syntax is :

# fsck -y [devicename]

You need to find the devicename for the unit in the /dev directory.

After a successfull fsck run you can again try to mount the file system .

If its a SOLARIS ufs file system you will need a computer with SOLARIS installed
because SUN made a lot of their own changes to the UFS file system
compared to Kirk McKusick's code.

//Lars
Click to expand...


What about external USB HDD? Mine works fine.

do a $ tail -f /var/log/messages and plug the device in and post any relevant output here.
 
I used spinrite to identify the drive, it said it was a BSD based OS. The drive has been taken out and put into my desktop. With DesktopBSD there is a list of all the drives and one is called UFS. I didn't know that solaris also uses UFS. Is there a way to tell the difference.

On a video tutorial a drive was called da0s1d, Is da0 the naming convention for H/Ds. In /dev there is da0 and da0s1.
 
Hi,

what device name the drive recives is dependent on what other equipment is installed in the PC. The command:

# dmesg

will list the devices as they appear. You can boot you system with and without your disc attached and run "dmesg" after each boot to compare the devicenames and find out which one
applies to the possibly damaged disk.

the correspnding device node should appear in the /dev directory.

//Lars
 
I tried that with the live cd and compared the results without putting the hard drive back in. Dmesg gave up different results. I presume your advice only works with a permanent install, to keep the assigned names permanent.
 
Your video tutorial (for the device?) suggests there are partitions: da0 is the drive, da0s1 is the first (fdisk style) slice and da0s1d is the d-partittion (bsd style). If you don't see /dev/da0s1d then you likely do not have that partition.

What does

# gpart show

display for da0?

You might check the filesystem with

# fsck -t ufs /dev/da0s1d
 
Using the liveCD gpart show doesn't give any output and fsck -t ufs /dev/da0s1d gives the following.

Code: 
desktopbsd# fsck -t ufs /dev/da0s1
** /dev/da0s1
Cannot find file system superblock
ioctl (GCINFO): Inappropriate ioctl for device
fsck_ufs: /dev/da0s1: can't read disk label
desktopbsd#

The video was a general freeBSD tutorial on youtube. Thats why I was asking if daO was the standard way to describe a hard drive partition. The drive was partitioned by Sony. I can't find any information online about how they setup the DVD player, a DRD-AT100. Its not even listed on the Sony ehelp website. IF Sony has altered the system to any any standard BSD or other OS using UFS, I suspect its not possible to access the drive without their inhouse software.
 
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