I've tried to use (bootable) CD-ROM as root filesystem (I want have
this because it's good alternative of fixit.flp), but it seems that
GENERIC kernel doesn't understand where is root filesystem.
What I did are:
- make a 2.88MB boot floppy image, which contains:
* GENERIC kernel (gzipped)
* loader(8)
* configulation files for loader: device hints & 'set boot_cdrom'
- make an ISO image with, which contains:
* floppy image (mentioned above) for boot
* extracted distributions
- Burn an ISO image to a CD
- Boot...
* loader(8) works well; initializing is OK, and kicks kernel.gz
* kernel works well until all devices are attached
* kernel stops when mounting root filesystem, dmesg says:
....
acd0: CDROM <....> at ata0-slave PIO4
Mounting root from cd9660:cd0a
setrootbyname failed
iso_mountroot: can't find rootvp
Root mount failed: 6
Mounting root from cd9660:acd0a
setrootbyname failed
iso_mountroot: can't find rootvp
Root mount failed: 6
Mounting root from cd9660:wcd0a
setrootbyname failed
iso_mountroot: can't find rootvp
Root mount failed: 6
Manual root filesystem specification:
<fstype>:<device> Mount <device> using filesystem <fstype>
eg. ufs:/dev/da0s1a
? List valid disk boot devices
<empty line> Abort manual imput
mountroot>
It seems that something goes wrong in setrootbyname(). Any clues?
P.S.: I've also tried with 4-stable kernel, and it goes pretty well.
-- -
Makoto `MAR' MATSUSHITA
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