strange behavior

QNX Newsgroups (Archives) qnx.evaluation
1

Hi all,

I saw some strange behaviors from the Momentics 6.3,

  1. nfs mount a file system while fs-nfs2 was not started, the mount command
    returned OK without mounting anything.
  2. /.boot couldn’t be removed even if root has rwx permission on /.
  3. copy a new kernel into /.boot, /.boot would not appear as changed (using
    ls -l), although it was. The new size of /.boot only appeared after a
    reboot.

Thanks for your comments.

Phungte

2

Phungte <phungte@decru.com> wrote:

Hi all,

I saw some strange behaviors from the Momentics 6.3,

  1. nfs mount a file system while fs-nfs2 was not started, the mount command
    returned OK without mounting anything.

That shouldn’t have happened – if fs-nfs2 is not running, the mount
should fail.

So, exactly what mount command did you issue?

  1. /.boot couldn’t be removed even if root has rwx permission on /.

This is expected and documented (somewhere) behaviour.

There are some special files in / that can not be removed. They include
…boot, .altboot, .bitmap, and .inodes.

  1. copy a new kernel into /.boot, /.boot would not appear as changed (using
    ls -l), although it was. The new size of /.boot only appeared after a
    reboot.

I have never seen this behaviour. Any copy to/from /.boot has always
resulted in the size changing appropriately, and the date changing
appropriately.

-David

David Gibbs
QNX Training Services
dagibbs@qnx.com

3

David Gibbs <dagibbs@qnx.com> wrote:

  1. /.boot couldn’t be removed even if root has rwx permission on /.

This is expected and documented (somewhere) behaviour.

Neutrino User’s Guide
Controlling How Neutrino Starts
Loading a Neutrino image

Steve Reid stever@qnx.com
TechPubs (Technical Publications)
QNX Software Systems

4

David Gibbs <dagibbs@qnx.com> wrote:

Phungte <> phungte@decru.com> > wrote:
Hi all,

I saw some strange behaviors from the Momentics 6.3,

  1. nfs mount a file system while fs-nfs2 was not started, the mount command
    returned OK without mounting anything.

That shouldn’t have happened – if fs-nfs2 is not running, the mount
should fail.

I tested with 6.3.0 SP1, apparently PR 19039 fixed this issue with
SP1, and it was broken under 6.3.0.

-David

David Gibbs
QNX Training Services
dagibbs@qnx.com