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maxim wexler wrote:
> Previously I had a problem with hard drive that turned out was a
> faulty IDE controller, not the drive, not the cable.
>
> Now I can't use /dev/hdb but /dev/hdc is OK. So my set up is
> /dev/hda(WinXP) and /dev/hdc(gentoo), ie, WinXP is on the first IDE
> as master and gentoo is on the sec IDE also as master. hdd is the
> CDROM(sec IDE,slave), to complete the setup.
>
> So far I've tried every possible permutation of root, rootnoverify
> and map. I've tried installing the boot loader on /dev/hda and
> /dev/hdc. On hda nothing works(error 21). On hdc the boot menu
> appears and I can boot gentoo but not WinXP
title=Windows XP
root=(hd0)
chainloader +1
>
> Error messages: "selected disk does not exist", "not found or not a
> block device", "could not find device for boot". Sorry, I can't
> recall the exact context for these messages but this will give a
> flavor hopefully.
Are you sure you're selecting the correct disk? Don't just assume
since it's hdc in Linux it's hd2, use tab-completion when you're
setting up grub., Have you tried using grub console
w/tab-completion? Hit 'c' when you're booted to grub, and try
grub> root (hd {hit tab to see what's there}
It's all the same syntax as grub.conf
>
> I've tried changing the boot order in the BIOS.
>
> I can get gentoo to boot if I tell grub it's on (hd0,0)(?!?!) but
> WinXP won't boot unless I remove the HD w/gentoo on it and bypass
> grub altogether.
Where is grub installed currently? The easiest way I've gotten it to
work is to install over Window's MBR and use a chainloader +1 line to
chainload windows.
Lastly What partitions are marked as active/bootable? I assume the xp
one is (hda), but what about hdc when you're trying to install grub
there? Also, I don't _think_ you can have more than 1 active/bootable
disk.
>
> fdisk can see both drives OK. Both drives appear in dmesg w/o
> errors. Both drives appear in the POST screen -- first drive as
> '0', second drive as '1'
Again, this leads me to believe that grub is seeing the second disk as
hd1. Granted; you never said what you called it but that might be your
problem.
>
>
> Maxim
>
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