On Tue, May 08, 2012 at 06:13:10PM +0530, pcuser p wrote: > Thanks all for ur replies. > I gave a try to create a new rootfile system (ext2) by following the procedure > in free-electrons.com and examples in the busybox folder. > Surprisingly, it got built properly and run upto the same point and doesn't > accept any commands i'm typing. > I haven't added serial related stuff (gettty) in the inittab/rcS file as I am > still not much clear about it. > > My query is: > At later point after file system mounted, is this same console used for login? > (i'm having only one UART port in my board -> ttySAC0) > Am I getting this err (/bin/sh: can't access tty; job control turned off) > because console is locked already for printk's? > What changes are needed in the inittab & /etc/init.d/rcS file to get the > working shell prompt for this scenario? Because *your* /bin/sh is running on /dev/console > below are the console messages: > RAMDISK: ext2 filesystem found at block 0 > RAMDISK: Loading 3072KiB [1 disk] into ram disk... \ > done. > VFS: Mounted root (ext2 filesystem) readonly on device 1:0. > Freeing init memory: 80K > /bin/sh: can't access tty; job control turned off > / # > > /etc/inittab file contents > # This is run first script > ::sysinit:/etc/init.d/rcS > # Start an "askfirst" shell on the console > ::askfirst:/bin/sh > # Stuff to do when restarting the init process > ::restart:/sbin/init > # Stuff to do before rebooting > ::ctrlaltdel:/sbin/reboot > ::shutdown:/bin/umount a r > > /etc/init.d/rcS file contents > #!/bin/sh > mount t proc none /proc > mount t sysfs none /sys > exec /sbin/sh > /bin/sh Remove the last two lines and add a line "exec /bin/sh" might works. And, I suggest you write rcS as examples/bootfloppy/etc/inittab in busybox src tree, and do not drop sh lines in rcS # examples/bootfloppy/etc/inittab: ::sysinit:/etc/init.d/rcS ::respawn:-/bin/sh tty2::askfirst:-/bin/sh ::ctrlaltdel:/bin/umount -a -r -- Regards, Adam Lee -------------------------------- E-mail: adam8157@xxxxxxxxx Website: http://adam8157.info -------------------------------- _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
