On Wed, 24 Dec 2008 06:39:08 -0500 (EST) "Robert P. J. Day" <rpjday@xxxxxxxxxxxxxx> wrote: > On Wed, 24 Dec 2008, Erik Mouw wrote: > > > On Tue, 23 Dec 2008 17:56:00 -0500 (EST) "Robert P. J. Day" > > <rpjday@xxxxxxxxxxxxxx> wrote: > > > after i mounted /dev/pts (rw), ssh connections started to work. > > > is this why /dev/pts was developed? to work around RO /dev > > > directories? or was there some other reason? > > > > No, that's just coincidence. The main reason is that in the old days > > the number of PTYs were limited (to 256, IIRC) so you could only > > have a limited number of remote sessions and xterms on your machine. > > /dev/pts removed that limit. > > i've never been in the situation of running out of ptys but are you > saying that if i don't mount devpts and use /dev/pts as a regular > directory, i will hit a hard limit of 256 special files that i > wouldn't hit using the mount? No, you have to use Legacy (BSD) PTY support for that: make menuconfig --> Drivers --> Character devices --> Legacy (BSD) PTY support. With that, you have to use /dev/ptyxx and /dev/ttyxx and you can specify the maximum number of PTYs to use. Of course you have to create those devices in /dev and like you already find out that needs a writeable /dev directory (you could of course use ramfs for /dev and populate that at boot time). Erik -- Erik Mouw -- mouw@xxxxxxxxxxxx GPG key fingerprint: D6AC 7F15 A26E C5C4 62E0 4A58 FCF9 551C 9B48 B68D
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