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Martin Hope
Raymond
Asked: 2023-12-22 05:11:19 +0800 CST
  • 6

我有一个专用的远程网络服务器。我通过添加搞乱了/root/.bashrc文件source /root/.bash_profile。它在 sudo su 上进行核心转储。

$ sudo su
Segmentation fault (core dumped)

我也无法使用 root 通过 ssh 登录服务器。

我做不到sudo su。

我可以将服务器重新启动到救援模式。

如何恢复 .bashrc 文件？

sudo
Martin Hope
Raymond
Asked: 2022-01-17 16:09:47 +0800 CST
  • 2

WiFi 不工作。不知道如何修复它。我的旧电脑上有相同的 WiFi 芯片，它通过禁用快速启动来工作。我确实禁用了快速启动，但没有运气。我已经完成更新。

如何解决？

一些命令和输出：

$uname -r
5.11.0-46-generic

$ lsmod | grep iwlwifi
iwlwifi               372736  1 iwlmvm
cfg80211              888832  3 iwlmvm,iwlwifi,mac80211
    
$ ls /sys/class/net
enp3s0  lo

$cat /etc/netplan/01-network-manager-all.yaml
# Let NetworkManager manage all devices on this system
network:
  version: 2
  renderer: NetworkManager


$ inxi -Fxz
....
Network:   Device-1: Intel vendor: Micro-Star MSI driver: igc v: kernel port: 5000 bus ID: 03:00.0 
           IF: enp3s0 state: up speed: 1000 Mbps duplex: full mac: <filter> 
           Device-2: Intel driver: iwlwifi v: kernel port: 5000 bus ID: 04:00.0 
...


$ sudo dmesg | grep iwl
[    6.394823] iwlwifi 0000:04:00.0: enabling device (0000 -> 0002)
[    6.403106] iwlwifi 0000:04:00.0: api flags index 2 larger than supported by driver
[    6.403125] iwlwifi 0000:04:00.0: TLV_FW_FSEQ_VERSION: FSEQ Version: 93.8.63.28
[    6.403475] iwlwifi 0000:04:00.0: loaded firmware version 59.601f3a66.0 ty-a0-gf-a0-59.ucode op_mode iwlmvm
[    6.426172] iwlwifi 0000:04:00.0: Detected Intel(R) Wi-Fi 6 AX210 160MHz, REV=0x420
[    6.574747] iwlwifi 0000:04:00.0: loaded PNVM version 0x324cd670
[    6.823134] iwlwifi 0000:04:00.0: Timeout waiting for PNVM load!
[    6.823138] iwlwifi 0000:04:00.0: Failed to start RT ucode: -110
[    6.823142] iwlwifi 0000:04:00.0: iwl_trans_send_cmd bad state = 1
[    7.027062] iwlwifi 0000:04:00.0: firmware didn't ACK the reset - continue anyway
[    7.039125] iwlwifi 0000:04:00.0: Failed to run INIT ucode: -110
[   66.840923] Modules linked in: rfcomm cmac algif_hash algif_skcipher af_alg bnep nvidia_uvm(PO) nvidia_drm(PO) nvidia_modeset(PO) snd_sof_pci snd_sof_intel_hda_common snd_sof_intel_hda snd_sof_intel_byt intel_rapl_msr snd_sof_intel_ipc intel_rapl_common snd_sof snd_sof_xtensa_dsp snd_soc_hdac_hda x86_pkg_temp_thermal intel_powerclamp snd_hda_ext_core nvidia(PO) i915 snd_hda_codec_hdmi snd_soc_acpi_intel_match snd_soc_acpi ledtrig_audio i2c_algo_bit snd_hda_intel snd_intel_dspcfg soundwire_intel soundwire_generic_allocation iwlmvm soundwire_cadence snd_hda_codec snd_hda_core soundwire_bus coretemp snd_usb_audio mac80211 snd_soc_core mei_hdcp snd_usbmidi_lib snd_compress ac97_bus snd_hwdep kvm_intel mc snd_pcm_dmaengine libarc4 snd_pcm kvm snd_seq_midi snd_seq_midi_event snd_rawmidi nls_iso8859_1 crct10dif_pclmul btusb iwlwifi ghash_clmulni_intel btrtl aesni_intel snd_seq btbcm btintel snd_seq_device crypto_simd bluetooth snd_timer drm_kms_helper cryptd ecdh_generic glue_helper wmi_bmof
networking