boot时读取硬盘问题 Hi,   我有一块IBM的40g硬盘在Redhat Advanced Server3下启动特别慢，以下是   dmesg |grep hd的输出，其中提示dma超时，是不是bios设置有问题？     ide0: BM-DMA at 0xd800-0xd807, BIOS settings: hda:DMA, hdb:pio     ide1: BM-DMA at 0xd808-0xd80f, BIOS settings: hdc:pio, hdd:DMA hda: IC35L040AVER07-0, ATA DISK drive hdd: SHARK 52X CD-ROM, ATAPI CD/DVD-ROM drive hda: attached ide-disk driver. hda: host protected area =>; 1 hda: 80418240 sectors (41174 MB) w/1916KiB Cache, CHS=5005/255/63, UDMA(33) hda:<4>;hda: dma_timer_expiry: dma status == 0x21 hda: error waiting for DMA hda: dma timeout retry: status=0x58 { DriveReady SeekComplete DataRequest } hda: dma_timer_expiry: dma status == 0x21 hda: error waiting for DMA hda: dma timeout retry: status=0x58 { DriveReady SeekComplete DataRequest } hda1 hda2 hda3 hda4 <<4>;hda: dma_timer_expiry: dma status == 0x21 hda: error waiting for DMA hda: dma timeout retry: status=0x58 { DriveReady SeekComplete DataRequest } hda: dma_timer_expiry: dma status == 0x21 hda: error waiting for DMA hda: dma timeout retry: status=0x58 { DriveReady SeekComplete DataRequest } hda5 hda6 hda7 hda8 hda9 hda10 hda11 hda12 >; hdd: attached ide-cdrom driver. hdd: ATAPI 52X CD-ROM drive, 128kB Cache, UDMA(33) [ 关闭窗口 ]