BUILDROOT ip: 找不到设备 eth0
BUILDROOT ip: can't find device eth0
我的 VirtualMachine 上的 buildroot 网络有问题。当我输入 ifconfig 时，我得到答案：
eth0：获取接口信息时出错：找不到设备
在控制台上加载 buildroot 时我看到：
ip: 找不到设备 eth0
ip: SI0CGIFFALGS : 没有这样的设备
我找不到解决此问题的方法。
你的问题不是Buildroot问题，而是内核配置问题
# make linux-menuconfig
Device drivers —>
Network device support —>
Ethernet driver support—>
Select:
<*> Intel(R) PRO/100+ support
<*> Intel(R) PRO/1000 Gigabit Ethernet support
<*> Intel(R) PRO/1000 PCI-Express Gigabit Ethernet support
<*> Intel(R) 82575/82576 PCI-Express Gigabit Ethernet support
[*] Intel(R) PCI-Express Gigabit adapters HWMON support
<*> Intel(R) 82576 Virtual Function Ethernet support
并且现在应该可以使用 VM。
从引导日志的最后一行开始，您可以添加 Intel(R) PRO/1000 PCI-Express Gigabit Ethernet support，如 @TadejP 所述。
[ 0.204512] e1000: Intel(R) PRO/1000 Network Driver - version 7.3.21-k8-NAPI
[ 0.205444] e1000: Copyright (c) 1999-2006 Intel Corporation.
[ 0.220165] ACPI: PCI Interrupt Link [LNKC] enabled at IRQ 11
[ 0.362077] ata1.00: ATA-7: QEMU HARDDISK, 2.5+, max UDMA/100
[ 0.362908] ata1.00: 4280320 sectors, multi 16: LBA48
[ 0.364110] ata2.00: ATAPI: QEMU DVD-ROM, 2.5+, max UDMA/100
[ 0.365246] ata2.00: configured for MWDMA2
[ 0.366176] ata1.00: configured for MWDMA2
[ 0.366846] scsi 0:0:0:0: Direct-Access ATA QEMU HARDDISK 2.5+ PQ: 0 ANSI: 5
[ 0.368118] sd 0:0:0:0: [sda] 4280320 512-byte logical blocks: (2.19 GB/2.04 GiB)
[ 0.369219] sd 0:0:0:0: [sda] Write Protect is off
[ 0.369916] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 0.371218] sd 0:0:0:0: Attached scsi generic sg0 type 0
[ 0.372213] scsi 1:0:0:0: CD-ROM QEMU QEMU DVD-ROM 2.5+ PQ: 0 ANSI: 5
[ 0.387384] sda: sda1 sda2 sda3
[ 0.388409] sr 1:0:0:0: [sr0] scsi3-mmc drive: 4x/4x cd/rw xa/form2 tray
[ 0.389298] cdrom: Uniform CD-ROM driver Revision: 3.20
[ 0.390163] sd 0:0:0:0: [sda] Attached SCSI disk
[ 0.390976] sr 1:0:0:0: Attached scsi generic sg1 type 5
[ 0.548201] e1000 0000:00:03.0 eth0: (PCI:33MHz:32-bit) 52:54:00:12:34:56
[ 0.549265] e1000 0000:00:03.0 eth0: Intel(R) PRO/1000 Network Connection
我的 VirtualMachine 上的 buildroot 网络有问题。当我输入 ifconfig 时，我得到答案：
eth0：获取接口信息时出错：找不到设备
在控制台上加载 buildroot 时我看到：
ip: 找不到设备 eth0
ip: SI0CGIFFALGS : 没有这样的设备
我找不到解决此问题的方法。
你的问题不是Buildroot问题，而是内核配置问题
# make linux-menuconfig
Device drivers —>
Network device support —>
Ethernet driver support—>
Select:
<*> Intel(R) PRO/100+ support
<*> Intel(R) PRO/1000 Gigabit Ethernet support
<*> Intel(R) PRO/1000 PCI-Express Gigabit Ethernet support
<*> Intel(R) 82575/82576 PCI-Express Gigabit Ethernet support
[*] Intel(R) PCI-Express Gigabit adapters HWMON support
<*> Intel(R) 82576 Virtual Function Ethernet support
并且现在应该可以使用 VM。
从引导日志的最后一行开始，您可以添加 Intel(R) PRO/1000 PCI-Express Gigabit Ethernet support，如 @TadejP 所述。
[ 0.204512] e1000: Intel(R) PRO/1000 Network Driver - version 7.3.21-k8-NAPI
[ 0.205444] e1000: Copyright (c) 1999-2006 Intel Corporation.
[ 0.220165] ACPI: PCI Interrupt Link [LNKC] enabled at IRQ 11
[ 0.362077] ata1.00: ATA-7: QEMU HARDDISK, 2.5+, max UDMA/100
[ 0.362908] ata1.00: 4280320 sectors, multi 16: LBA48
[ 0.364110] ata2.00: ATAPI: QEMU DVD-ROM, 2.5+, max UDMA/100
[ 0.365246] ata2.00: configured for MWDMA2
[ 0.366176] ata1.00: configured for MWDMA2
[ 0.366846] scsi 0:0:0:0: Direct-Access ATA QEMU HARDDISK 2.5+ PQ: 0 ANSI: 5
[ 0.368118] sd 0:0:0:0: [sda] 4280320 512-byte logical blocks: (2.19 GB/2.04 GiB)
[ 0.369219] sd 0:0:0:0: [sda] Write Protect is off
[ 0.369916] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 0.371218] sd 0:0:0:0: Attached scsi generic sg0 type 0
[ 0.372213] scsi 1:0:0:0: CD-ROM QEMU QEMU DVD-ROM 2.5+ PQ: 0 ANSI: 5
[ 0.387384] sda: sda1 sda2 sda3
[ 0.388409] sr 1:0:0:0: [sr0] scsi3-mmc drive: 4x/4x cd/rw xa/form2 tray
[ 0.389298] cdrom: Uniform CD-ROM driver Revision: 3.20
[ 0.390163] sd 0:0:0:0: [sda] Attached SCSI disk
[ 0.390976] sr 1:0:0:0: Attached scsi generic sg1 type 5
[ 0.548201] e1000 0000:00:03.0 eth0: (PCI:33MHz:32-bit) 52:54:00:12:34:56
[ 0.549265] e1000 0000:00:03.0 eth0: Intel(R) PRO/1000 Network Connection