Hi. I have on my old Gateway 500, 3 harddrives, and 3 ROM drives. hda, and hdb (both harddrives) are on the first IDE controller on the mobo. hdc, and hdd (cdrom, and cdwriter) are on the 2nd IDE controller on the mobo. hde (harddrive) is on the first IDE controller of the PCI adaptor card, and. hdg (dvdrom) is on the 2nd IDE controller of the PCI adaptor card. FC2's (hdb) Grub is in the MBR of hda, (Win ME is on hda). FC3, and 2 instances of FC5 are on other partitions of hda, and hdb, with their Grub bootloaders in their respective / partitions, and I can chainload from Grub in the MBR to these other Grub's, and everyone boots up ok. The problem is with FC1 (hde) on the IDE PCI adaptor card. Again it's Grub is in FC1's / partition, but I cannot set up a chainloader to it like the other OS's. When I bootup, and select FC1 on Grubs menu, I get a "no such disc" returned. Incidentally I can boot FC1 from a floppy ok, and is the way I've been booting it since 2003. Also when any of the other OS's is booted up, I have no problem with the dvdrom drive, or hde, and can mount it, transfer files back and forth from it, and so on. I saw some posts about Grubs drive map, but there is hardly any info about it on the Grub site. Anyway I looked at the drive map of Grub (in the MBR) and see that it only has 3 entries. fd0, hda, and hdb (no hde). I admit i'm poking around in the dark, but added and entry for hde to the drive map. Rebooted, but still getting a "no such disc" for FC1 on hde. If this missing hde from the drive map is the problem, am I supposed to reinstall Grub to the MBR after making changes to the map? lspci -v is below for the Silicon Graphics card, and a link to their site. Any help is really appreciated. Nigel. /sbin/lspci -v 00:10.0 Unknown mass storage controller: Silicon Image, Inc. (formerly CMD Technology Inc) PCI0680 Ultra ATA-133 Host Controller (rev 02) Subsystem: Silicon Image, Inc. (formerly CMD Technology Inc) PCI0680 Ultra ATA-133 Host Controller Flags: bus master, medium devsel, latency 64, IRQ 9 I/O ports at 1410 I/O ports at 1404 [size=4] I/O ports at 1408 [size=8] I/O ports at 1400 [size=4] I/O ports at 10f0 [size=16] Memory at f0000400 (32-bit, non-prefetchable) [size=256] Capabilities: <available only to root> Model: MRI-PCI/A133 http://www.mri.co.uk