求助：[已解决] LFS 6.6 启动后在/dev下无法找到硬盘设备文件。。

286708413

按照LFS 6.6的官方文档，前几天在真机上完成LFS 6.6，启动正常，但是进入系统后，无法在/dev目录下找到硬盘设备文件。而且，插上U盘启动电脑也无法在/dev下发现U盘，只有重新拨插U盘才能在/dev下发现 sdb 。启动时也检测到硬盘了，信息如下，各位大哥，帮帮小弟，这是什么原因，先谢谢各位了。。。。

Aug 19 14:12:03 1004 kernel: cpuidle: using governor ladder
Aug 19 14:12:03 1004 kernel: cpuidle: using governor menu
Aug 19 14:12:03 1004 kernel: usbcore: registered new interface driver hiddev
Aug 19 14:12:03 1004 kernel: usbcore: registered new interface driver usbhid
Aug 19 14:12:03 1004 kernel: usbhid: USB HID core driver
Aug 19 14:12:03 1004 kernel: ALSA device list:
Aug 19 14:12:03 1004 kernel:   No soundcards found.
Aug 19 14:12:03 1004 kernel: NET: Registered protocol family 26
Aug 19 14:12:03 1004 kernel: Netfilter messages via NETLINK v0.30.
Aug 19 14:12:03 1004 kernel: nf_conntrack version 0.5.0 (16384 buckets, 65536 max)
Aug 19 14:12:03 1004 kernel: ctnetlink v0.93: registering with nfnetlink.
Aug 19 14:12:03 1004 kernel: IPv4 over IPv4 tunneling driver
Aug 19 14:12:03 1004 kernel: GRE over IPv4 tunneling driver
Aug 19 14:12:03 1004 kernel: ip_tables: (C) 2000-2006 Netfilter Core Team
Aug 19 14:12:03 1004 kernel: TCP cubic registered
Aug 19 14:12:03 1004 kernel: NET: Registered protocol family 17
Aug 19 14:12:03 1004 kernel: 802.1Q VLAN Support v1.8 Ben Greear <greearb@candelatech.com>
Aug 19 14:12:03 1004 kernel: All bugs added by David S. Miller <davem@redhat.com>
Aug 19 14:12:03 1004 kernel: SCTP: Hash tables configured (established 65536 bind 65536)
Aug 19 14:12:03 1004 kernel: lib80211: common routines for IEEE802.11 drivers
Aug 19 14:12:03 1004 kernel: lib80211_crypt: registered algorithm 'NULL'
Aug 19 14:12:03 1004 kernel: Using IPI No-Shortcut mode
Aug 19 14:12:03 1004 kernel: hd: no drives specified - use hd=cyl,head,sectors on kernel command line
Aug 19 14:12:03 1004 kernel: ehci_hcd 0000:00:1d.7: GetStatus port 8 status 001403 POWER sig=k CSC CONNECT
Aug 19 14:12:03 1004 kernel: hub 1-0:1.0: port 8: status 0501 change 0001
Aug 19 14:12:03 1004 kernel: hub 2-0:1.0: state 7 ports 2 chg 0000 evt 0000
Aug 19 14:12:03 1004 kernel: hub 3-0:1.0: state 7 ports 2 chg 0000 evt 0000
Aug 19 14:12:03 1004 kernel: uhci_hcd 0000:00:1d.3: port 2 portsc 008a,00
Aug 19 14:12:03 1004 kernel: hub 4-0:1.0: state 7 ports 2 chg 0000 evt 0000
Aug 19 14:12:03 1004 kernel: ata1.00: ATA-8: WDC WD3200BEVT-00ZCT0, 11.01A11, max UDMA/133
Aug 19 14:12:03 1004 kernel: ata1.00: 625142448 sectors, multi 8: LBA48 NCQ (depth 0/32)
Aug 19 14:12:03 1004 kernel: ata1.00: configured for UDMA/133
Aug 19 14:12:03 1004 kernel: scsi 0:0:0:0: Direct-Access     ATA      WDC WD3200BEVT-0 11.0 PQ: 0 ANSI: 5
Aug 19 14:12:03 1004 kernel: sd 0:0:0:0: [sda] 625142448 512-byte logical blocks: (320 GB/298 GiB)
Aug 19 14:12:03 1004 kernel: sd 0:0:0:0: [sda] Write Protect is off
Aug 19 14:12:03 1004 kernel: sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
Aug 19 14:12:03 1004 kernel: sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
Aug 19 14:12:03 1004 kernel:  sda:
Aug 19 14:12:03 1004 kernel: hub 1-0:1.0: state 7 ports 8 chg 0100 evt 0000
Aug 19 14:12:03 1004 kernel: hub 1-0:1.0: port 8, status 0501, change 0000, 480 Mb/s
Aug 19 14:12:03 1004 kernel: ehci_hcd 0000:00:1d.7: port 8 low speed --> companion
Aug 19 14:12:03 1004 kernel:  sda1 sda2 sda3 < sda5 sda6 sda7 >
Aug 19 14:12:03 1004 kernel: ehci_hcd 0000:00:1d.7: GetStatus port 8 status 003002 POWER OWNER sig=se0 CSC
Aug 19 14:12:03 1004 kernel: hub 1-0:1.0: state 7 ports 8 chg 0000 evt 0100
Aug 19 14:12:03 1004 kernel: hub 5-0:1.0: state 7 ports 2 chg 0000 evt 0004
Aug 19 14:12:03 1004 kernel: uhci_hcd 0000:00:1d.3: port 2 portsc 01a3,00
Aug 19 14:12:03 1004 kernel: hub 5-0:1.0: port 2, status 0301, change 0001, 1.5 Mb/s
Aug 19 14:12:03 1004 kernel: sd 0:0:0:0: [sda] Attached SCSI disk
Aug 19 14:12:03 1004 kernel: hub 5-0:1.0: debounce: port 2: total 100ms stable 100ms status 0x301
Aug 19 14:12:03 1004 kernel: usb 5-2: new low speed USB device using uhci_hcd and address 2
Aug 19 14:12:03 1004 kernel: usb 5-2: skipped 1 descriptor after interface
Aug 19 14:12:03 1004 kernel: usb 5-2: default language 0x0409
Aug 19 14:12:03 1004 kernel: usb 5-2: udev 2, busnum 5, minor = 513
Aug 19 14:12:03 1004 kernel: usb 5-2: New USB device found, idVendor=093a, idProduct=2510
Aug 19 14:12:03 1004 kernel: usb 5-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
Aug 19 14:12:03 1004 kernel: usb 5-2: Product: USB OPTICAL MOUSE
Aug 19 14:12:03 1004 kernel: usb 5-2: Manufacturer: PIXART
Aug 19 14:12:03 1004 kernel: usb 5-2: usb_probe_device
Aug 19 14:12:03 1004 kernel: usb 5-2: configuration #1 chosen from 1 choice
Aug 19 14:12:03 1004 kernel: usb 5-2: adding 5-2:1.0 (config #1, interface 0)
Aug 19 14:12:03 1004 kernel: usbhid 5-2:1.0: usb_probe_interface
Aug 19 14:12:03 1004 kernel: usbhid 5-2:1.0: usb_probe_interface - got id
Aug 19 14:12:03 1004 kernel: input: PIXART USB OPTICAL MOUSE as /class/input/input5
Aug 19 14:12:03 1004 kernel: generic-usb 0003:093A:2510.0001: input,hidraw0: USB HID v1.11 Mouse [PIXART USB OPTICAL MOUSE] on usb-0000:00:1d.3-2/input0
Aug 19 14:12:03 1004 kernel: drivers/usb/core/inode.c: creating file '002'
Aug 19 14:12:03 1004 kernel: Synaptics Touchpad, model: 1, fw: 6.3, id: 0x81a0b1, caps: 0xa04713/0x200000/0x0
Aug 19 14:12:03 1004 kernel: input: SynPS/2 Synaptics TouchPad as /class/input/input6
Aug 19 14:12:03 1004 kernel: UDF-fs: No partition found (1)
Aug 19 14:12:03 1004 kernel: XFS mounting filesystem sda2
Aug 19 14:12:03 1004 kernel: Ending clean XFS mount for filesystem: sda2
Aug 19 14:12:03 1004 kernel: VFS: Mounted root (xfs filesystem) readonly on device 8:2.
Aug 19 14:12:03 1004 kernel: Freeing unused kernel memory: 420k freed
Aug 19 14:12:03 1004 kernel: usb usb2: suspend_rh (auto-stop)
Aug 19 14:12:03 1004 kernel: usb usb3: suspend_rh (auto-stop)
Aug 19 14:12:03 1004 kernel: usb usb4: suspend_rh (auto-stop)
Aug 19 14:12:03 1004 kernel: dcdbas dcdbas: Dell Systems Management Base Driver (version 5.6.0-3.2)
Aug 19 14:12:03 1004 kernel: HDA Intel 0000:00:1b.0: PCI INT A -> GSI 21 (level, low) -> IRQ 21
Aug 19 14:12:03 1004 kernel: HDA Intel 0000:00:1b.0: irq 44 for MSI/MSI-X
Aug 19 14:12:03 1004 kernel: HDA Intel 0000:00:1b.0: setting latency timer to 64
Aug 19 14:12:03 1004 kernel: iwlagn: Intel(R) Wireless WiFi Link AGN driver for Linux, in-tree:d
Aug 19 14:12:03 1004 kernel: iwlagn: Copyright(c) 2003-2010 Intel Corporation
Aug 19 14:12:03 1004 kernel: b44 0000:03:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
Aug 19 14:12:03 1004 kernel: iwlagn 0000:0c:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
Aug 19 14:12:03 1004 kernel: iwlagn 0000:0c:00.0: setting latency timer to 64
Aug 19 14:12:03 1004 kernel: iwlagn 0000:0c:00.0: Detected Intel(R) WiFi Link 5100 AGN, REV=0x54
Aug 19 14:12:03 1004 kernel: ssb: Core 0 found: Fast Ethernet (cc 0x806, rev 0x07, vendor 0x4243)
Aug 19 14:12:03 1004 kernel: ssb: Core 1 found: V90 (cc 0x807, rev 0x03, vendor 0x4243)
Aug 19 14:12:03 1004 kernel: ssb: Core 2 found: PCI (cc 0x804, rev 0x0A, vendor 0x4243)
Aug 19 14:12:03 1004 kernel: iwlagn 0000:0c:00.0: Tunable channels: 13 802.11bg, 24 802.11a channels
Aug 19 14:12:03 1004 kernel: hda-codec: No codec parser is available
Aug 19 14:12:03 1004 kernel: iwlagn 0000:0c:00.0: irq 45 for MSI/MSI-X
Aug 19 14:12:03 1004 kernel: ssb: Sonics Silicon Backplane found on PCI device 0000:03:00.0
Aug 19 14:12:03 1004 kernel: b44: b44.c:v2.0
Aug 19 14:12:03 1004 kernel: b44 ssb0:0: eth0: Broadcom 44xx/47xx 10/100BaseT Ethernet 00:15:c5:4f:7d:b2




最后，重新编译内核解决问题，但没发现是那个选项导致的。希望知道的朋友说下。。。

d00m3d

U 盤等外置設備是模擬作 SCSI 設備來使用的，所以內核除 USB 支援，還需要 SCSI 支援才行