BTW the restriction is the bios not grub. Most bios will not allow you to setup to boot from all disk, but this restriction doesn't have anything to do with how many disk grub can boot from, because in reality the bios will not allow you to boot from ide device hdb but it's done all the time in fact I boot from it, but only through mbr on had.
> -----Original Message----- > From: [EMAIL PROTECTED] [mailto:redhat-list- > [EMAIL PROTECTED] On Behalf Of Marcos de Souza Trazzini > Sent: Friday, August 22, 2003 6:55 AM > To: [EMAIL PROTECTED] > Subject: RE: [Q] how to boor up from /dev/sdb2 ?? > > On Thu, 2003-08-21 at 17:50, Otto Haliburton wrote: > > You can boot to any disk as long as you boot through the mbr on the > > primary drive. See the grub manual. > > Ops.... GRUB can't boot from "any" disk. > > GRUB can "only" boot from the first 2 drives installed on the system. > In > example, if you have 3 disks (sda,sdb,sdc), the GRUB can't be > installed > at the third drive (sdc). The same rule are valid for ide disks. And > Important !!!, all IDE or SCSI Devices are mapped by GRUB (including > CDROM drives). The "device.map" file can be helpful.... > > Well.... this info came from the official RedHat 9 Documentation. > > In case, if the device.map maps like this, the system can't boot from > /dev/sdb drive: > > (hd0) /dev/hda > (hd1) /dev/sda > (hd2) /dev/sdb > > Well... if the question is only for boot from the rescue disk into the > system under /dev/sdb2, try to append root=/dev/sdb2 to the kernel > bootup line in rescue disk. > > > -- > redhat-list mailing list > unsubscribe mailto:[EMAIL PROTECTED] > https://www.redhat.com/mailman/listinfo/redhat-list -- redhat-list mailing list unsubscribe mailto:[EMAIL PROTECTED] https://www.redhat.com/mailman/listinfo/redhat-list
