Re: resize2fs: Either the superblock or the partition table is likely to be corrupt!

[Ron Johnson <ron.l.johnson@cox.net>]

On 2009-07-21 00:21, Sven Joachim wrote:
> On 2009-07-21 05:50 +0200, Ron Johnson wrote:
>
> > On 2009-07-20 21:29, Manoj Srivastava wrote:
> >
> > > /dev/sda1				/boot		ext3	noatime,rw,defaults,noauto	0	2
> > noauto?????
>
> There is no need to mount /boot unless you install new kernels or update
> your bootloader configuration.

Very interesting.

>                                 Many people prefer to mount it
> read-only, though.
>
> > > /dev/mapper/anzu_main-usr_lv		/usr		ext3	noatime,ro,defaults		0	2
> > I understand why this is ro; why then is /boot rw?
>
> As I said, Manoj probably only mounts /boot to install new kernels, and
> then he wants to write to it.
>
> > > /dev/mapper/anzu_main-home_lv		/home		ext3	noatime,rw,nosuid,nodev		0	2
> > What does nodev mean?  (My google fu must be lacking.)  Is "Do not
> > interpret character or block special devices on the file system." just
> > extra security so that a rogue app doesn't try to create a device file
> > anywhere but /dev?
>
> It does not prevent _creating_ device files, but it prevent _accessing_
> them and the underlying hardware.

Guess I'll be adding that to /home's fstab entry...

> > > /dev/mapper/anzu_main-ulocal_lv 	/usr/local	ext3	noatime,rw,nosuid,nodev		0	2
> > > /dev/mapper/anzu_main-var_lv		/var		ext3	noatime,rw,nosuid               0	2
> > > /dev/mapper/anzu_main-spool_lv	/var/spool	ext3	noatime,rw,nosuid,nodev		0	2
> > Seems to me that this whole exercise is to ensure that /dev is in it's
> > own partition.
>
> Hardly, /dev is always on a tmpfs these days.  Unless you make your life
> hard by not using udev, that is.

Then still I don't see the real gain to separating /usr and 
/usr/local into their own partitions.

--
Scooty Puff, Sr
The Doom-Bringer