Zhang Weiwu wrote:
> Ferris McCormick wrote:
>> So you have two questions:
>> 1. Will Gentoo boot of the floppy? And if so,
>> 2. Can you take enough out of the kernel & put it into modules
>> to fit the kernel + the boot loader onto a floppy?
>> I am sure your situation is addressed somewhere, but I've never run
>> across it.
>> Good luck, keep trying, and come back with questions. Eventually
>> someone who knows the answer will get tired of reading my responses
>> and will feed you better information.
> I think I ran into new problems. After lots of work to shink kernel
> down to 1.2MB and teste the kernel is bootable, according to silo(1),
> these steps should create bootable floppy:
> genromfs -d directory/ -f device -a 512 -A 2048,/..
> mount -t romfs device mountpoint
> silo -r mountpoint -i /boot/fd.b -F
> umount mountpoint
> This is what I did:
> root # fdisk /dev/fd0
> Command (m for help): s
> Building a new sun disklabel. Changes will remain in memory only,
> until you decide to write them. After that, of course, the previous
> content won't be recoverable.
> Command (m for help): w
> The partition table has been altered!
> Calling ioctl() to re-read partition table.
> WARNING: Re-reading the partition table failed with error 22: Invalid
> The kernel still uses the old table.
> The new table will be used at the next reboot.
> Syncing disks.
> root # genromfs -d /boot/ -f /dev/fd0 -a 512 -A 2048,/..
> root # mount -t romfs /dev/fd0 /boot
> root # silo -r /boot -i /boot/fd.b -F
> silo.conf seems to be valid
> root # umount /boot
> And start the computer:
> [Enter OBP]
> ok boot floppy
> Boot device: /pci@1f,0/pci@1,1/ebus@1/fdthree File and args:
> Bad magic number in disk label
> Can't open disk label package
> Can't open boot device
> So I failed to make a bootable floppy. What do I miss?
God, I don't think its my problem any more! I created a sparc boot
floppy image using dd(1) with the image I got from:
This image, said should be able to boot, still produce the above error
in OBP. I also googled around, lots of people are asking the same
question (why cannot boot from floppy) and given no satisfying answer.
Perhaps this is an UltraSparc problem
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