Hello,
I think I now understand the way to use fsck_hfs and I'm very pleased with it. I wish I would have known it in the past, when I first began to work on the HFS media.
But back to the reason of my message:
I use the df command to know which symbolic name to use when launching the utility. Is there a way to know wich symbolic name to use when the volume is not mounted?
For instance, I have a HFS+ image, burned on a CD-ROM, which doesn't mount. The Disk Utility says that the node size is incorrect. I would like to check what fsck_hfs says indeed. However, since the unmounted CD-ROM is not listed by rge df command, which symbolic name should I use?
Thanks in advance for any information.
On Jun 11, 2004, at 8:38 AM, Pierre Duhem wrote:
I use the df command to know which symbolic name to use when launching the utility. Is there a way to know wich symbolic name to use when the volume is not mounted?
If you are on Mac OS X, you can use "diskutil list" to see the list of disks and partitions that Disk Arbitration knows about. The problem disk may or may not show up in that list. I don't know whether diskutil is part of Darwin.
I often just do a combination of "ls /dev/disk*" to see all the disk devices, and "mount" or "df" to see which of those are mounted. Then it is a matter of guessing which of the unmounted disk devices is the right one. It's usually easy to spot since none of the /dev/diskNsX devices will be mounted for some N. The HFS volume is probably the one with the largest X.
For instance, I have a HFS+ image, burned on a CD-ROM, which doesn't mount. The Disk Utility says that the node size is incorrect. I would like to check what fsck_hfs says indeed. However, since the unmounted CD-ROM is not listed by rge df command, which symbolic name should I use?
If you're using Disk Utility, then fsck_hfs isn't going to give you much more information. The output you see in Disk Utility is actually coming from fsck_hfs (it execs fsck_hfs and displays the output in its window, formatted a bit differently).
-Mark
Mark,
For instance, I have a HFS+ image, burned on a CD-ROM, which doesn't mount. The Disk Utility says that the node size is incorrect. I would like to check what fsck_hfs says indeed. However, since the unmounted CD-ROM is not listed by rge df command, which symbolic name should I use?
MD> If you're using Disk Utility, then fsck_hfs isn't going to give you MD> much more information. The output you see in Disk Utility is actually MD> coming from fsck_hfs (it execs fsck_hfs and displays the output in its MD> window, formatted a bit differently).
Thanks for the information.
Not much more information, but more precisely, since fsck_hfs displays a line stating which part of the disk it is testing. For some problems occuring in a B-tree, for instance, it is better to know which one.
-
Mark Day -
Pierre Duhem