Re: resize2fs: Either the superblock or the partition table is likely to be corrupt!
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. 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.
>> /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.
Sven
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