[Date Prev][Date Next] [Thread Prev][Thread Next] [Date Index] [Thread Index]

Re: Get rid of /etc/mtab ?

Wichert Akkerman <wichert@wiggy.net> writes:

> Previously Goswin Brederlow wrote:
> > Can someone summarise the reasons against
> > 
> > ln -s /proc/mounts /etc/mtab
> * Not everymount mounts /proc

They don't have to use the link

> * /proc is not mounted early in the boot sequence

Doesn't seem to hurt anything. Also one can provide a /proc/mtab file
on / for mount (and others) to fall back to until /proc is mounted.

> * not all mount options are listed in /proc/mounts

Which options are missing and where does that matter?

> * Not all operating systems have /proc (afaik only Linux has /proc/mounts)

Again, you don't have to use the link.

> * Using /proc/mounts in a chroot means leaking lots of information about
>   the host system into the chroot (the info is there anyway via /proc
>   but with different paths which don't exist in the chroot. Also chroots
>   don't always have /proc mounted but may very well mount other things)

Again, use /etc/mtab in a chroot. Also /proc in a chroot should be
fixed to show only information from inside the chroot. I would
consider the leakage a kernel bug thats there anyway and not a problem
with the link.

> Now someone please summarise the reasons not to have a seperate /etc/mtab
> file. 

/ and thus /etc read only.

The link would be optional and apart from the missing options in
/proc/mounts (of wich I only know of problems with loopback mounts) I
don't see any reason against supporting the link along with the normal
mtab file.


To UNSUBSCRIBE, email to debian-devel-request@lists.debian.org
with a subject of "unsubscribe". Trouble? Contact listmaster@lists.debian.org

Reply to: