Linux gentoo-xen 2.6.18-xen-r12 #3 SMP Tue Oct 5 09:28:53 PDT 2010 x86_64 Intel(R) Xeon(R) CPU E5506 @ 2.13GHz GenuineIntel GNU/Linux
我有 6 个 1 TB 的磁盘，但我看不到全部，只有 4 个，有人能告诉我该怎么办吗？
Filesystem Size Used Avail Use% Mounted on
rootfs 886G 4.4G 836G 1% /
/dev/sda3 886G 4.4G 836G 1% /
rc-svcdir 1.0M 44K 980K 5% /lib64/rc/init.d
shm 7.9G 0 7.9G 0% /dev/shm
/dev/sdb1 917G 200M 871G 1% /home2
/dev/sdc1 917G 200M 871G 1% /home3
/dev/sdd1 917G 200M 871G 1% /home4
硬件是双至强E5506处理器，搭载超微X8DTL主板
4.346585] ata3.00: ATA-8, max UDMA/133, 1953525168 sectors: LBA48 NCQ (depth 0/32)
[ 4.346588] ata3.00: ata3: dev 0 multi count 16
[ 4.352861] ata3.00: configured for UDMA/133
[ 4.352867] scsi3 : ata_piix
[ 4.352875] PM: Adding info for No Bus:host3
[ 4.510584] ata4.00: ATA-8, max UDMA/133, 1953525168 sectors: LBA48 NCQ (depth 0/32)
[ 4.510587] ata4.00: ata4: dev 0 multi count 16
[ 4.516848] ata4.00: configured for UDMA/133
[ 4.516861] PM: Adding info for No Bus:target2:0:0
[ 4.516905] Vendor: ATA Model: SAMSUNG HD103SJ Rev: 1AJ1
[ 4.516910] Type: Direct-Access ANSI SCSI revision: 05
[ 4.516920] PM: Adding info for scsi:2:0:0:0
[ 4.517452] SCSI device sde: 1953525168 512-byte hdwr sectors (1000205 MB)
[ 4.517460] sde: Write Protect is off
[ 4.517461] sde: Mode Sense: 00 3a 00 00
[ 4.517478] SCSI device sde: drive cache: write back
[ 4.517514] SCSI device sde: 1953525168 512-byte hdwr sectors (1000205 MB)
[ 4.517521] sde: Write Protect is off
[ 4.517522] sde: Mode Sense: 00 3a 00 00
[ 4.517532] SCSI device sde: drive cache: write back
[ 4.517534] sde: sde1
[ 4.524551] sd 2:0:0:0: Attached scsi disk sde
[ 4.524855] sd 2:0:0:0: Attached scsi generic sg4 type 0
[ 4.524874] PM: Adding info for No Bus:target3:0:0
[ 4.524928] Vendor: ATA Model: SAMSUNG HD103SJ Rev: 1AJ1
[ 4.524933] Type: Direct-Access ANSI SCSI revision: 05
[ 4.524946] PM: Adding info for scsi:3:0:0:0
[ 4.525216] SCSI device sdf: 1953525168 512-byte hdwr sectors (1000205 MB)
[ 4.525227] sdf: Write Protect is off
[ 4.525228] sdf: Mode Sense: 00 3a 00 00
[ 4.525242] SCSI device sdf: drive cache: write back
[ 4.525280] SCSI device sdf: 1953525168 512-byte hdwr sectors (1000205 MB)
[ 4.525286] sdf: Write Protect is off
[ 4.525289] sdf: Mode Sense: 00 3a 00 00
[ 4.525301] SCSI device sdf: drive cache: write back
[ 4.525302] sdf: sdf1
[ 4.532691] sd 3:0:0:0: Attached scsi disk sdf
[ 4.533010] sd 3:0:0:0: Attached scsi generic sg5 type 0
[ 4.977669] scsi: <fdomain> Detection failed (no card)
[ 5.030479] GDT-HA: Storage RAID Controller Driver. Version: 3.05
[ 5.030635] GDT-HA: Found 0 PCI Storage RAID Controllers
[ 5.372350] Fusion MPT base driver 3.04.01
[ 5.372358] Copyright (c) 1999-2005 LSI Logic Corporation
[ 5.579176] Fusion MPT SPI Host driver 3.04.01
[ 5.881777] ieee1394: Initialized config rom entry `ip1394'
[ 6.166745] ieee1394: sbp2: Driver forced to serialize I/O (serialize_io=1)
[ 6.166748] ieee1394: sbp2: Try serialize_io=0 for better performance
[ 6.428866] md: md driver 0.90.3 MAX_MD_DEVS=256, MD_SB_DISKS=27
[ 6.428872] md: bitmap version 4.39
[ 6.431518] md: raid0 personality registered for level 0
[ 6.495979] md: raid1 personality registered for level 1
[ 6.570270] raid5: automatically using best checksumming function: generic_sse
[ 6.575523] generic_sse: 6608.000 MB/sec
[ 6.575526] raid5: using function: generic_sse (6608.000 MB/sec)
[ 6.596226] raid6: int64x1 1835 MB/s
[ 6.613231] raid6: int64x2 1773 MB/s
[ 6.630256] raid6: int64x4 1675 MB/s
[ 6.647296] raid6: int64x8 1027 MB/s
[ 6.664267] raid6: sse2x1 3578 MB/s
[ 6.681268] raid6: sse2x2 4207 MB/s
[ 6.698280] raid6: sse2x4 4625 MB/s
[ 6.698281] raid6: using algorithm sse2x4 (4625 MB/s)
[ 6.698285] md: raid6 personality registered for level 6
[ 6.698286] md: raid5 personality registered for level 5
[ 6.698288] md: raid4 personality registered for level 4
[ 6.781090] md: raid10 personality registered for level 10
[ 7.007043] Intel(R) PRO/1000 Network Driver - version 7.1.9-k4
[ 7.007046] Copyright (c) 1999-2006 Intel Corporation.
[ 9.229465] kjournald starting. Commit interval 5 seconds
[ 9.229476] EXT3-fs: mounted filesystem with ordered data mode.
答案1
除了驱动器未安装之外，内核是否还能看到它们？检查 dmesg 输出以查看 BIOS 报告了多少个驱动器。我过去曾遇到过几次这个问题，我承认我忘了检查主板或控制器的 BIOS 设置，而且我遇到过安装不正确的硬盘驱动器出现这种情况。
如果它们在 BIOS 中被报告并且 dmesg 在启动时拾取它们，它们是否有有效的分区/文件系统，它们是否有适当的 /etc/fstab 条目？
您怀疑 Xen 内核与此有关，如果您使用标准内核启动系统，您看到驱动器吗？