On Wed, Apr 21, 2010 at 1:20 PM, chris (fool) mccraw <gen...@gmail.com> wrote: >> If someone knows how to create such an issue, I'm curious to hear about it. > > did you read the rest of my message? i explicitly told you how to do > it SAFELY in the part immediately following the part you replied to.
Yes, I saw this: On Wed, Apr 21, 2010 at 12:12 PM, chris (fool) mccraw <gen...@gmail.com> wrote: > the best way to force an fsck is to make a temporary filesystem, add > it to fstab, and intentionally screw *it* up--then you won't lose > stuff that you might someday need. it can be a tiny filesystem and > your dd methodology is sound, just start 512 bytes in and write for > awhile to make sure you hit the inode table. Here is my interpretation of those instructions: $ sudo dd if=/dev/zero of=/just-for-fun bs=1M count=100 $ sudo mkfs.ext3 -F /just-for-fun $ sudo mkdir /media/jff $ echo "/just-for-fun /media/jff ext3 loop 0 1" | sudo tee -a /etc/fstab $ sudo reboot It mounted just fine. So we now have a temporary filesystem. Now to mess it up: $ sudo umount /media/jff $ sudo dd if=/dev/zero bs=1 count=200 \ of=/just-for-fun seek=50000 conv=notrunc $ sudo reboot Again, booted just fine. No prompting for root password. Now to really trash the filesystem: $ sudo umount /media/jff $ sudo dd if=/dev/zero of=/just-for-fun bs=1M count=100 $ sudo reboot Boots but halts at trying to mount the /just-for-fun filesystem. Still no prompting for root password. I guess I need to rephrase my request: if anyone has some commands or code or a test-case that causes Ubuntu to prompt for a root password at startup, please post. Regards, - Robert _______________________________________________ PLUG mailing list PLUG@lists.pdxlinux.org http://lists.pdxlinux.org/mailman/listinfo/plug
