LVM and mount unrecognized file system

[Eduardo Alfaia]

Hi all,
I get a problem with LVM and Mount. I executed this steps with LVM:
vgscan (ok)
vgchange -a y /dev/vg01 (ok)
lvchange -a y /dev/vg01/lvol(1,2,3) (ok)

But when I try mount /dev/vg01/lvol1 /sc_opt,I get this error: "/dev/vg01/lvol1: unrecognized file system" and
fstyp -v /dev/vg01/lvol1
unknown_fstyp (no matches)

but when I try
smscmao:/root# fstyp -v /dev/vg00/lvol1
hfs
f_bsize: 8192
f_frsize: 1024
f_blocks: 83733
f_bfree: 50505
f_bavail: 42131
f_files: 13440
f_ffree: 13392
f_favail: 13392
f_fsid: 1073741825
f_basetype: hfs
f_namemax: 255
f_magic: 95014
f_featurebits: 1
f_flag: 0
f_fsindex: 0
f_size: 86016

What do I do ?

Thanks

[Torsten.]

There is surely no relation between

vg00/lvol1

and

vg01/lvol1

Different VG's!

Do you remember the use of these LVOL's?

Maybe a database use them as raw devices?

[Rasheed Tamton]

Hi Eduardo,

lvchange cannot be performed if the volume group is activated in shared mode.

What was the scenario to use the lvchange command. If you provide more details you would get quick support.

Regards.

[Torsten.]

Are these LVOLs listed in /etc/fstab?

[Mridul Shrivastava]

Is this the first time you are trying to mount this LVOL ???

If yes then you have to create filesystem before proceeding with mount. use newfs for the same, read man newfs for more options.

You can check /etc/fstab as well if there is any entry for this LVOL mount point else it might be a raw vol as well, as already mentioned.

[melvyn burnard]

Your command useage says you are NOT using this vg in shared mode, and the fstyp command indicates there is an hfs file system on this lvol.
I am unsure why you needed to do lvchange, as activating the vg is enough.

Try using mount with the -F option to tell it that there is an hfs file system:
mount -F hfs /dev/vg01/lvol1 /sc_opt

#If this does not work, the question that has to be asked is whether it has ever worked.

[Torsten.]

Melvyn: "fstyp command indicates there is an hfs file system on this lvol"

Confused?

Read the first post again - it's from vg00!

VG is question is vg01!

No idea why he posted the qutput from vg00 - maybe to confuse you only ...

;-))

[Steven E. Protter]

Shalom,

Looks to me like either there is no file system (raw device database perhaps).

Perhaps its time to use newfs and format the filesystem if the previous statement is not true.

SEP

[Jeeshan]

In case of I/O errors, refer to this document:
http://docs.hp.com/en/5991-1236/When_Good_Disks_Go_Bad.pdf

[Rasheed Tamton]

Is there any possibility this one is meant for a swap device.

Just check with the below one, if a file system was created on it.

mkfs -m /dev/vg01/lvol1