fsck on removable optical disk?

[Liu, yuhyun Marjorie]

We have an optical jukebox with autochanger C1160M. I have used it to
format multiple optical disks and mount them, and access them by
/etc/mount /dev/ac/c0t6d0_1a /tmp_mnt/opt1a

for each disk.

For one of the disk, I have this problem,

mount /dev/ac/c0t6d0_12a /tmn_mnt/opt12a

mount: /dev/ac/c0t6d0_12a needs to be fsck'ed before mounting,
mount: warning: if device /dev/ac/c0t6d0_12a is mounted to another
system, then do not run fsck.

However, I can not do fsck because this disk is unmounted. And what
should I do about this disk, the other side 12b is mountable. Should I
reformat the 12a side? or use a new optical disk?

We have 9000/800/L2000-44. using HP-UX 11.0.

Marjorie Liu

[Jan Klier]

You typically run fsck on unmounted disks.

Try 'fsck /dev/rac/c0t6d0_12a' - not sure about the exact details on the command line.

Note the difference of /dev/rac vs. /dev/ac - this is the raw device which is typically used for operations like fsck.

[Liu, yuhyun Marjorie]

Yep!

It worked.
I use

fsck -F hfs /dev/rac/c0t6d0_12a

It marked the file system clean, now I can mount it now.

Thanks.

Marjorie Liu