On Wednesday 12 September 2012 08:50:49 Hans Bezemer wrote: > > Sorry for the obvious typos and inefficiencies, but it was kinda late ;-) I > enhanced and optimized the procedure a little - without the "dirty" boot. > You can now do most of the procedure in the comfort of your host OS. > > (1) For that I took a kernel from > http://people.debian.org/~aurel32/qemu/mipsel/ > (2) I made a raw disk (ben.img) of 512 megs, partitioned it and made a > Linux partition; > under an ARM(!) emulated Linux (it's much easier that way than a looped > device). Exit the emulation and enter your host system again.
I'm not sure I completely understand how using QEMU is easier for this part. I can see that it's awkward to use fdisk to add information to the disk image, and using mkfs on an image file with a partition table probably involves some work telling it where to start writing - I've only ever used it on devices or on image files that aren't partitioned (for User Mode Linux) - but is there anything else? > (3) Mount it with "mount -o loop,offset=31232 -t ext2 ben.img /mnt" > (4) wgetted the openwrt*-rootfs.tar.gz > (5) cd /mnt; tar -xzvf <path>openwrt*-rootfs.tar.gz > (6) cd /mnt/dev; mknod console c 5 1 > (7) Populated /dev a bit more (disk, null and tty - see below); chmod 777 * > (8) cd /mnt/etc; mv inittab inittab.old; cd init.d; mv rcS rcS.old > (9) vi rcS; lines "#!/bin/sh<cr>mount -t proc proc /proc" added > (10) umount /mnt > (11) Booted with: qemu-system-mipsel -m 32 -kernel vmlinux-qemu -hda > ben.img -append "root=/dev/sda1 rw console=tty0" -no-reboot > (12) BTW, "halt" works at this stage. > > Population of /dev: > > crwxrwxrwx 1 root root 5, 1 1970-01-01 01:01 console > crwxrwxrwx 1 root root 1, 3 2012-09-11 21:38 null > brw-r--r-- 1 root root 8, 0 2012-09-11 21:46 sda > brw-r--r-- 1 root root 8, 1 2012-09-11 21:46 sda1 > crwxrwxrwx 1 root root 4, 0 1970-01-01 01:02 tty0 > crwxrwxrwx 1 root root 4, 1 1970-01-01 01:02 tty1 > crw-r--r-- 1 root root 4, 2 2012-09-11 22:08 tty2 > > Translate it to mknod commands like this: > > crwxrwxrwx 1 root root 5, 1 1970-01-01 01:01 console > > becomes: > > mknod console c 5 1 > > c = first character of first string; > 5 = number after owner > 1 = number after that > > Any comments, addititions or errors are appreciated. I looked at various documents about devices and created the basic set of devices: http://hgweb.boddie.org.uk/qi-emdebian/file/5bc2f2eb7f63/qi-emdebian-postsetup This seemed to get me going far enough to be able to configure a Debian system on the NanoNote. With the usual Debian init system running, udev takes over the show. Paul _______________________________________________ Qi Hardware Discussion List Mail to list (members only): [email protected] Subscribe or Unsubscribe: http://lists.en.qi-hardware.com/mailman/listinfo/discussion
