Hi,
Coherent 4.2.10 boots fine in newest version 4.1.8r75467 running in XP.
PC Platform is DELL Optiplex 755 2.6 GHZ with Core 2Duo
Floppy image can be downloaded from my page
http://main4.amu.edu.pl/~apopiele/crescue.dd
After download of the image rename it to crescue.img
Then add it as virtual floppy diskette to floppy controller in virtual box settings.
During creation of the new machine set the virtual disk type to vdi and choose for example 100 or 400 MB as a size etc.
After booting floppy image You will be prompted , choose cohat as kernel name.
Then being in booted system create the Coherent partition using fdisk
fdisk /dev/at0x
You will be prompted and I hope You will succeed . Choose the whole space for the partition, or create more partitions.
Now You have at least one partition. We have to make filesystem on it.
For example
/etc/mkfs /dev/at0a 2000000
where 200000 means the specific number of 512 byte sectors. The number of sectors can be seen in fdisk during creation of the partition.
And now we mount it
/etc/mount /dev/at0a /mnt
Then we have to copy all files from out floppy , it means from / to /mnt.
Because the /etc/mnttab is corrupted do the following
mkdir /mnt/etc
cp /etc/* /mnt/etc
cp .lastlogin /mnt/etc/mnttab
directories can be copied with cpdir ( and dev must be, because it contains special files )
mkdir /mnt/dev
cpdir /dev /mnt/dev
etc
after copying all files
/etc/umount /dev/at0a
cp ./lastlogin /etc/mnttab
sync
/etc/reboot
After rebooting choose cohat0 as a kernel name
Now the root device will be the disk (11,0), not floppy (4,15). (major,minor)
Remark : It is very fast on Optiplex box. On standard P4 ThinkCentre system, without Core2 Duo is NOT.
Perhaps it is multicore which makes it so fast or perhaps SATA , which is present on Optiplex and not on my ThinKCentre.
Have a fun.
Andrzej