Re: CVS commit: src/etc

[christos%astron.com@localhost (Christos Zoulas)]

In article <120908030745.M0127733%mirage.ceres.dti.ne.jp@localhost>,
Izumi Tsutsui  <tsutsui%ceres.dti.ne.jp@localhost> wrote:
>martin@ wrote:
>
>> On Sat, Sep 08, 2012 at 01:34:37AM +0900, Izumi Tsutsui wrote:
>> > Probably we should also remove ipty from MAKEDEV "init" target
>> > and also add the above "mount -t ptyfs ..." line into
>> > src/distrib/{amd64,i386}/cdroms/etc.rc and
>> > src/distrib/sparc64/cdroms/installcd/etc.rc
>> > because third party live CDs would use tmpfs based /dev
>> > created by init(8) as installcd.
>> 
>> I am not sure. Since the init created /dev tmpfs is an emergency
>> measure, it can't realy rely on the presence of ptyfs.
>
>I guess only /dev/console (and some "std" devices) are required
>and nothing relys on ptyfs to get single user prompt, so
>administrators can invoke MAKEDEV(8) or mount_ptyfs(8) by hand
>on the prompt for emergency ops if necessary.
>(actually previous sparc64.iso failed in sysinst, not bootstrap)
>
>tmpfs /dev created by init(8) is also useful on systems
>using "read only root" environment, and such systems already
>have customized fstab(5) (or rc script like installcd) so
>it's quite easy to add ptyfs into such files.
>
>> We can, however, use a modified MAKEDEV script for install cdroms (and then
>> use ptyfs).
>
>MAKEDEV is a generated file so I'm afraid it is a bit annoying
>to sync modified version with standard one.

but MAKEDEV can just run mkdir /dev/pts, the rest can be done in rc scripts.
Hell, the rc script can run mkdir -p /dev/pts before mounting.

christos