China DOS Union

This problem has been bothering me for several days, asking for help.
Symptoms:
A friend's machine has two hard drives, 1=120G, 1=40G. The 120G is the main working hard drive (divided into 3 partitions; I forgot the exact partition sizes; operating system win2k), and the 40G (divided into 2 partitions; operating system win98). The machine had always been working normally. A few days ago there were several accidental power outages. It was left unused for a few days, and when it was powered on again, the 120G hard drive would not boot. The screen shows (DHCP MAC ADDR :00 90 27 A8 BF 02
DHCP ..... followed by a slash cursor spinning continuously)
Booting with the other hard drive, the latter two partitions can be seen and read/write works normally, but the system partition has disappeared. After installing partition magic 8 to inspect this hard drive, there are no partitions at all, and it shows as dynamic disk.

I am asking for help here, hoping an expert can help analyze the cause and a way to fix it. Thanks!

Use DISKMAN to repair the partition table

Does diskman support hard drives larger than 8.4G? I once used it to partition a 20G hard drive, and it ended up messing up the entire hard drive...

In the 2k you installed, you may have enabled "dynamic disk". And dynamic disks can only be recognized under 2k or xp. 98 does not recognize "dynamic disk". You'd better boot your system with 2k or xp; I estimate you'll then be able to see the partitions on the 120g hard drive. You can also, in 2k, right-click "My Computer"->"Manage"->"Disk Management" and change the "dynamic disk" back to "basic disk", so that 98 can recognize it too. But be sure to back up your data, in case changing it causes data loss.