2. 列出所有被检测到的硬件 要显示所有被内核检测到的硬盘设备,你可以使用‘grep’命令搜索‘sda’关键词,如下: linuxidc@linuxidc:~/linuxidc.com$ dmesg | grep sda [ 3.323824] sd 26:0:0:0: [sda] 125829120 512-byte logical blocks: (64.4 GB/60.0 GiB) [ 3.323848] sd 26:0:0:0: [sda] W...
因此,有必要过滤出一些包含‘usb’ ‘dma’ ‘tty’ ‘memory’等字符串的日志行。grep 命令 的‘-i’选项表示忽略大小写。 [root@itcast ~]# dmesg | grep -i usb [root@itcast ~]# dmesg | grep -i dma [root@itcast ~]# dmesg | grep -i tty [root@itcast ~]# dmesg | grep...
dmesg | greperror 1 这个命令可以检索 dmesg 输出中包含 “error” 关键字的行,方便我们快速定位错误信息。 Fsck 什么是 Fsck Fsck 也叫做 File System Check,是 Linux 文件系统检查工具,用于检查和修复文件系统中的错误。 Fsck 的作用 Fsck 可以帮助我们检测文件系统中的错误、恢复损坏的文件和目录,保护数据安全。
/bin/bash # 查找并显示所有错误和警告信息 dmesg | grep -Ei "error|warn" # 查找特定设备的初始化信息 dmesg | grep -i "sda" # 清空内核环缓冲区(谨慎操作) # echo 1 > /proc/sys/kernel/sysrq # echo c > /proc/sysrq-trigger 通过上述方法,可以有效地对Linux系统的dmesg日志进行分析,从而快速...
[root@localhost ~]# uname -a Linux localhost.localdomain 4.19.90-2003.4.0.0036.oe1.aarch64 #1 SMP Mon Mar 23 19:06:43 UTC 2020 aarch64 aarch64 aarch64 GNU/Linux [root@localhost ~]# dmidecode | grep "Product Name" Product Name: TaiShan 200 (Model 2280) Product Name: BC82AMDDA [...
我们可以使用如‘more’。‘tail’, ‘less ’或者‘grep’文字处理工具来处理‘dmesg’命令的输出。由于dmesg日志的输出不适合在一页中完全显示,因此我们使用管道(pipe)将其输出送到more或者less命令单页显示。 linuxidc@linuxidc:~/linuxidc.com$ dmesg | more ...
If you do "lsdev | grep 31", you'll see that 31 is number of disk driver, so the failed device is disk.To find the disk that failed, you must look at "0x003000". I guess the disk is /dev/dsk/c3t0d0.Do, "ioscan -fnCdisk" and look at the lines that have "NO_HW" in ...
~]# dmesg | grep -i usb ~]# dmesg | grep -i tty These above commands can be merged into a single command using multiplegrepoption (-E), example is shown below, ~]# dmesg | grep -E "memory|dma|usb|tty" Output would be something like below: ...
$ dmesg | grep -i xhci [ 1.484040] xhci_hcd 0000:01:00.0: xHCI Host Controller [ 1.484077] xhci_hcd 0000:01:00.0: new USB bus registered, assigned bus number 1 [ 1.487297] xhci_hcd 0000:01:00.0: hcc params 0x002841eb hci version 0x100 quirks 0x0000030000000890 [ 1.488633] usb usb1...
1 2 3 #include <stdio.h> 4 5 void func(char *p) 6 { 7 *p = 'p'; 8 } 9 10 int main(int argc, char *argv[]) 11 { 12 char *p=NULL; 13 func(p); 14 15 return 0; 16 } [root@localhost log]# /root/xx [root@localhost log]#dmesgxx[8226]: segfault at 0 ip 00000000004...