On Tue, Mar 25, 2003 at 05:25:10PM -0700, Craig Coles wrote: > I am trying to create a custom boot disk for a PXE style network boot. > I can take an image of a rescue boot floppy (1.44MB or 2.88MB) and place > this on the PXE server and the PXE client will boot the image, so I know > the server is working... > > I am using the following procedure to create the boot disk image; > > - create a loopback device to build my root file system in > dd if=/dev/zero of=myroot bs=1k count=4096 > mke2fs =m 0 -N 2000 myroot > mount -o loop myroot /mnt > - create the /dev, /proc, /etc, /sbin, /bin, /lib, /usr, /var > directories > - create the /dev files > - populate the /etc, /sbin, /bin, /lib directories... > ldconfig -r /mnt > umount /mnt > dd if=myroot bs=1k | gzip -v9 > myrootfs.gz > > - build a kernel (v2.4.20) with ext2 and ramdisk support (8MB), and > other support needed > make menuconfig > make dep; make bzImage; > > - merge the two steps > dd if=bzImage of=mybootdisk bs=1k > 788+1 records in > 788+1 records out > rdev mybootdisk /dev/ram0 (the destination for the root file system > when booted) > rdev -R mybootdisk 0 > rdev -r mybootdisk 17173 (kernel offset + bit 14 set) > dd if=myrootfs.gz of=mybootdisk bs=1k seek=789 > > > When this image is booted a Kernel panic is produced: > VFS: Unable to mount root fs on 01:00 > > I think that should be the first RAM disk... On the frozen boot screen, > at the top is the message: > RAMDISK driver initialized: 16 RAM disk of 8192K size 1024 blocksize > > -- Can anyone tell me what I have done wrong here? I've rebuilt the > kernel many times to make sure I have everything included, but always > come back to this error.
I'm not sure about the specifics of how this works, but the mknbi-linux perl script is designed for combining the root and kernel onto a bootable image; maybe you could get some insight by looking at that. -- http://Www.TruthAboutWar.org Chris Tillman - Linux Rox - -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
