Re: [zfs-discuss] cannot mount 'mypool': Input/output error

[Eric Ham]

On Nov 15, 2007 9:42 AM, Nabeel Saad [EMAIL PROTECTED] wrote:
 I am sure I will not use ZFS to its fullest potential at all.. right now I'm 
 trying to recover the dead disk, so if it works to mount a single disk/boot 
 disk, that's all I need, I don't need it to be very functional.  As I 
 suggested, I will only be using this to change permissions and then return 
 the disk into the appropriate Server once I am able to log back into that 
 server.

(Sorry, forgot to CC the list.)

Ok, so assuming that all you want to do is mount your old Solaris disk
and change some permissions, then there is probably an easier solution
which is to put the hard drive back in the original machine and boot
from a (Open)Solaris CD or DVD.  This eliminates the whole Linux/FUSE
issues you're getting into.  Your easiest option might be to try the
new OpenSolaris Developer Preview distribution since it's actually a
Live CD which would give you a full GUI and networking to play with.

http://www.opensolaris.org/os/downloads/

Once the Live CD boots, you should be able to mount your drive to an
alternate path like /a and then change permissions.  If you boot from
a regular Solaris CD or DVD it will start the install process, but
then you should be able to simply cancel the install and get to a
command line and work from there.

Good luck!

Regards,
-Eric
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Re: [zfs-discuss] cannot mount 'mypool': Input/output error

[Nabeel Saad]

I appreciate the different responses that I have gotten.  As some of you may 
have realized I am not a guru in Linux / Solaris... 

I have been trying to figure out what file system my Solaris box was using... I 
got a comment from Paul that from the fdisk command he could see that most 
likely the partitions are Solaris UFS... I don't see that information anywhere, 
so I'm wondering if I missed something, or if you are assuming this Paul?

I am sure I will not use ZFS to its fullest potential at all.. right now I'm 
trying to recover the dead disk, so if it works to mount a single disk/boot 
disk, that's all I need, I don't need it to be very functional.  As I 
suggested, I will only be using this to change permissions and then return the 
disk into the appropriate Server once I am able to log back into that server.

I will try the zfs import just to give it a go.  I have done modprobe fuse and 
have it loaded... but the fact that allow is not available in the latest 
version clears up why that wasn't working...

Sorry Darren, I was not sure what the CC Forums really did and I just chose 
ones that I thought might be related to ZFS not realized that Crypto is 
probably another project...

I got another suggestion that the file system is UFS, which would make me think 
that mount -t ufs /dev/sda1 /mnt/mymount should work, but given that that fails 
with 

mount: wrong fs type, bad option, bad superblock on /dev/sda1,
   or too many mounted file systems

some thing is not right... but that's probably more a linux community 
discussion topic... thanks thought.

Thanks for your suggestion Mark, I will look in the linux FUSE although I do 
have a feeling we downloaded the Solaris FUSE software and put it on a linux 
box... I'll have to look into that some more.

Thank you for your responses...
 
 
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