Error Message:
Fatal error: Certificate verification: Not trusted
How to Solve:
This problem may be due to untrusted certificates Edit /etc/lftp.conf and add the following. set ssl:verify-certificate no or Type: set ssl:verify-certificate no at the lftp command prompt to solve the problem of no trust
Error Messages:
#
# No change to .config
#
CALL scripts/atomic/check-atomics.sh
CALL scripts/checksyscalls.sh
CHK include/generated/compile.h
fatal: not a git repository (or any of the parent directories): .git
LZ4C arch/arm64/boot/Image.lz4
Incorrect parameters
Usage :
lz4 [arg] [input] [output]
input : a filename
with no FILE, or when FILE is - or stdin, read standard input
Arguments :
-1 : Fast compression (default)
-9 : High compression
-d : decompression (default for .lz4 extension)
-z : force compression
-f : overwrite output without prompting
-h/-H : display help/long help and exit
arch/arm64/boot/Makefile:31: recipe for target 'arch/arm64/boot/Image.lz4' failed
make[2]: *** [arch/arm64/boot/Image.lz4] Error 1
make[2]: *** Deleting file 'arch/arm64/boot/Image.lz4'
arch/arm64/Makefile:170: recipe for target 'Image.lz4' failed
make[1]: *** [Image.lz4] Error 2
make[1]: *** Waiting for unfinished jobs....
arch/arm64/Makefile:214: recipe for target 'rk3588-evb2-lp4-v10-edp-linux.img' failed
make: *** [rk3588-evb2-lp4-v10-edp-linux.img] Error 2
ERROR: Running build_kernel failed!
ERROR: exit code 2 from line 656:
make ARCH=$RK_ARCH $RK_KERNEL_DTS.img -j$RK_JOBS
1.error
fatal: not a git repository (or any of the parent directories): .git
2.solution
sudo git init
2.About the lz4 error, I think the version can not keep up with it, I was solved by the following methods.
sudo apt-get remove liblz4-tool
sudo git clone https://github.com/lz4/lz4.git
cd /lz4
sudo make
sudo make install
When using springboot + Dubbo, the startup project reports an error
All error information is as follows:
org.apache.dubbo.rpc.RpcException: Fail to start server(url: dubbo://192.168.0.9:20880/service.UserInfoService?anyhost=true&application=user-login-service&bind.ip=192.168.0.9&bind.port=20880&channel.readonly.sent=true&codec=dubbo&deprecated=false&dubbo=2.0.2&dynamic=true&generic=false&heartbeat=60000&interface=service.UserInfoService&metadata-type=remote&methods=selectUesers,deleteUser,registerUser,updateUser,selectUser,findAllUsers&pid=83072&qos.accept.foreign.ip=false&qos.enable=false&release=2.7.8&side=provider×tamp=1641785798014) Failed to bind NettyServer on /192.168.0.9:20880, cause: Address already in use: bind
at org.apache.dubbo.rpc.protocol.dubbo.DubboProtocol.createServer(DubboProtocol.java:348) ~[dubbo-2.7.8.jar:2.7.8]
at org.apache.dubbo.rpc.protocol.dubbo.DubboProtocol.openServer(DubboProtocol.java:320) ~[dubbo-2.7.8.jar:2.7.8]
at org.apache.dubbo.rpc.protocol.dubbo.DubboProtocol.export(DubboProtocol.java:303) ~[dubbo-2.7.8.jar:2.7.8]
at org.apache.dubbo.rpc.protocol.ProtocolListenerWrapper.export(ProtocolListenerWrapper.java:64) ~[dubbo-rpc-api-2.7.8.jar:2.7.8]
at org.apache.dubbo.rpc.protocol.ProtocolFilterWrapper.export(ProtocolFilterWrapper.java:155) ~[dubbo-rpc-api-2.7.8.jar:2.7.8]
at org.apache.dubbo.qos.protocol.QosProtocolWrapper.export(QosProtocolWrapper.java:66) ~[dubbo-2.7.8.jar:2.7.8]
at org.apache.dubbo.rpc.Protocol$Adaptive.export(Protocol$Adaptive.java) ~[dubbo-common-2.7.8.jar:2.7.8]
at org.apache.dubbo.registry.integration.RegistryProtocol.lambda$doLocalExport$2(RegistryProtocol.java:255) ~[dubbo-registry-api-2.7.8.jar:2.7.8]
at java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1660) ~[na:1.8.0_302]
at org.apache.dubbo.registry.integration.RegistryProtocol.doLocalExport(RegistryProtocol.java:253) ~[dubbo-registry-api-2.7.8.jar:2.7.8]
at org.apache.dubbo.registry.integration.RegistryProtocol.export(RegistryProtocol.java:205) ~[dubbo-registry-api-2.7.8.jar:2.7.8]
at org.apache.dubbo.rpc.protocol.ProtocolListenerWrapper.export(ProtocolListenerWrapper.java:62) ~[dubbo-rpc-api-2.7.8.jar:2.7.8]
at org.apache.dubbo.rpc.protocol.ProtocolFilterWrapper.export(ProtocolFilterWrapper.java:153) ~[dubbo-rpc-api-2.7.8.jar:2.7.8]
at org.apache.dubbo.qos.protocol.QosProtocolWrapper.export(QosProtocolWrapper.java:64) ~[dubbo-2.7.8.jar:2.7.8]
at org.apache.dubbo.rpc.Protocol$Adaptive.export(Protocol$Adaptive.java) ~[dubbo-common-2.7.8.jar:2.7.8]
at org.apache.dubbo.config.ServiceConfig.doExportUrlsFor1Protocol(ServiceConfig.java:492) ~[dubbo-2.7.8.jar:2.7.8]
at org.apache.dubbo.config.ServiceConfig.doExportUrls(ServiceConfig.java:325) ~[dubbo-2.7.8.jar:2.7.8]
at org.apache.dubbo.config.ServiceConfig.doExport(ServiceConfig.java:300) ~[dubbo-2.7.8.jar:2.7.8]
at org.apache.dubbo.config.ServiceConfig.export(ServiceConfig.java:206) ~[dubbo-2.7.8.jar:2.7.8]
at org.apache.dubbo.config.bootstrap.DubboBootstrap.lambda$exportServices$15(DubboBootstrap.java:1103) ~[dubbo-2.7.8.jar:2.7.8]
at java.util.HashMap$Values.forEach(HashMap.java:981) ~[na:1.8.0_302]
at org.apache.dubbo.config.bootstrap.DubboBootstrap.exportServices(DubboBootstrap.java:1090) ~[dubbo-2.7.8.jar:2.7.8]
at org.apache.dubbo.config.bootstrap.DubboBootstrap.start(DubboBootstrap.java:901) ~[dubbo-2.7.8.jar:2.7.8]
at org.apache.dubbo.config.spring.context.DubboBootstrapApplicationListener.onContextRefreshedEvent(DubboBootstrapApplicationListener.java:59) ~[dubbo-2.7.8.jar:2.7.8]
at org.apache.dubbo.config.spring.context.DubboBootstrapApplicationListener.onApplicationContextEvent(DubboBootstrapApplicationListener.java:52) ~[dubbo-2.7.8.jar:2.7.8]
at org.apache.dubbo.config.spring.context.OneTimeExecutionApplicationContextEventListener.onApplicationEvent(OneTimeExecutionApplicationContextEventListener.java:40) ~[dubbo-2.7.8.jar:2.7.8]
at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:176) ~[spring-context-5.3.14.jar:5.3.14]
at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:169) ~[spring-context-5.3.14.jar:5.3.14]
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:143) ~[spring-context-5.3.14.jar:5.3.14]
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:421) ~[spring-context-5.3.14.jar:5.3.14]
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:378) ~[spring-context-5.3.14.jar:5.3.14]
at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:938) ~[spring-context-5.3.14.jar:5.3.14]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:586) ~[spring-context-5.3.14.jar:5.3.14]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:145) ~[spring-boot-2.6.2.jar:2.6.2]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:730) [spring-boot-2.6.2.jar:2.6.2]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:412) [spring-boot-2.6.2.jar:2.6.2]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:302) [spring-boot-2.6.2.jar:2.6.2]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1301) [spring-boot-2.6.2.jar:2.6.2]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1290) [spring-boot-2.6.2.jar:2.6.2]
at com.clc.userlogin7000.demo.UserLoginApplication.main(UserLoginApplication.java:12) [classes/:na]
Caused by: org.apache.dubbo.remoting.RemotingException: Failed to bind NettyServer on /192.168.0.9:20880, cause: Address already in use: bind
at org.apache.dubbo.remoting.transport.AbstractServer.<init>(AbstractServer.java:77) ~[dubbo-remoting-api-2.7.8.jar:2.7.8]
at org.apache.dubbo.remoting.transport.netty4.NettyServer.<init>(NettyServer.java:77) ~[dubbo-2.7.8.jar:2.7.8]
at org.apache.dubbo.remoting.transport.netty4.NettyTransporter.bind(NettyTransporter.java:35) ~[dubbo-2.7.8.jar:2.7.8]
at org.apache.dubbo.remoting.Transporter$Adaptive.bind(Transporter$Adaptive.java) ~[dubbo-common-2.7.8.jar:2.7.8]
at org.apache.dubbo.remoting.Transporters.bind(Transporters.java:56) ~[dubbo-remoting-api-2.7.8.jar:2.7.8]
at org.apache.dubbo.remoting.exchange.support.header.HeaderExchanger.bind(HeaderExchanger.java:44) ~[dubbo-remoting-api-2.7.8.jar:2.7.8]
at org.apache.dubbo.remoting.exchange.Exchangers.bind(Exchangers.java:70) ~[dubbo-remoting-api-2.7.8.jar:2.7.8]
at org.apache.dubbo.rpc.protocol.dubbo.DubboProtocol.createServer(DubboProtocol.java:346) ~[dubbo-2.7.8.jar:2.7.8]
... 39 common frames omitted
Caused by: java.net.BindException: Address already in use: bind
at sun.nio.ch.Net.bind0(Native Method) ~[na:1.8.0_302]
at sun.nio.ch.Net.bind(Net.java:463) ~[na:1.8.0_302]
at sun.nio.ch.Net.bind(Net.java:455) ~[na:1.8.0_302]
at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:233) ~[na:1.8.0_302]
at io.netty.channel.socket.nio.NioServerSocketChannel.doBind(NioServerSocketChannel.java:134) ~[netty-transport-4.1.72.Final.jar:4.1.72.Final]
at io.netty.channel.AbstractChannel$AbstractUnsafe.bind(AbstractChannel.java:562) ~[netty-transport-4.1.72.Final.jar:4.1.72.Final]
at io.netty.channel.DefaultChannelPipeline$HeadContext.bind(DefaultChannelPipeline.java:1334) ~[netty-transport-4.1.72.Final.jar:4.1.72.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeBind(AbstractChannelHandlerContext.java:506) ~[netty-transport-4.1.72.Final.jar:4.1.72.Final]
at io.netty.channel.AbstractChannelHandlerContext.bind(AbstractChannelHandlerContext.java:491) ~[netty-transport-4.1.72.Final.jar:4.1.72.Final]
at io.netty.channel.DefaultChannelPipeline.bind(DefaultChannelPipeline.java:973) ~[netty-transport-4.1.72.Final.jar:4.1.72.Final]
at io.netty.channel.AbstractChannel.bind(AbstractChannel.java:260) ~[netty-transport-4.1.72.Final.jar:4.1.72.Final]
at io.netty.bootstrap.AbstractBootstrap$2.run(AbstractBootstrap.java:356) ~[netty-transport-4.1.72.Final.jar:4.1.72.Final]
at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:164) ~[netty-common-4.1.72.Final.jar:4.1.72.Final]
at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:469) ~[netty-common-4.1.72.Final.jar:4.1.72.Final]
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:503) ~[netty-transport-4.1.72.Final.jar:4.1.72.Final]
at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:986) ~[netty-common-4.1.72.Final.jar:4.1.72.Final]
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.72.Final.jar:4.1.72.Final]
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[netty-common-4.1.72.Final.jar:4.1.72.Final]
at java.lang.Thread.run(Thread.java:853) ~[na:1.8.0_302]
Solution:
application.yaml or application.properties configuration file port from 20880 to 20881 can be modified because I have configured 20880 in other modules, so here again configuration will report a duplicate binding exception ~ ~
1: Running jar package in Linux environment, unable to find main
Reason: pom is missing configuration
Add the following to the pom file
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>Cause of the problem: since the so file is a binary file, it is ignored by default. You need to modify the configuration before uploading
Solution:
find / -name .subversion # find SVN configuration file path
cd to find the path of .subversion
VIM config finds these two lines:
#global-ignores = *.o *.lo *.la *.al .libs *.so *.so.[0-9]* *.a *.pyc *pyo
# *.rej *~#*# .#* .*.swp.DS_StoreModified as:
###global-ignores = *.o *.lo *.la *.al .libs *.so *.so.[0-9]* *.a *.pyc *pyo
### *.rej *~#*# .#* .*.swp.DS_Store
global-ignores = .*.swp.DS_StoreIt can be solved after saving!
1. Download the zip package from the official website.
2. After decompression, enter the directory to execute the script:
sudo sh setup.shIf the following error is encountered, the corresponding dependency package is missing and cannot be found by the current system:
E: Package 'libwebkitgtk-1.0-0' has no installation candidateSolution:
sudo getdit /etc/apt/sources.list # Open the list of mirror sources
deb http://cz.archive.ubuntu.com/ubuntu bionic main universe # Add the following image source to the file
sudo apt-get update # update
sudo sh setup.sh # re-execute3. Run
Enter the XMind_amd64 directory and execute the script “./xmind” to run successfully
Environment
Start centos7 in VMware 15.5 on win10, and the following error is reported:
entering emergency mode Exit the shell to continue
Cause analysis
According to the CentOS file system fault, the root causes of the fault are:
Repair method:
Please enter the following command to repair:
xfs_repair -v -L /dev/sda3
Parameter Description:
– L: use the xfs_repair command to clear the log (even if dirty data is included, this will change the metadata information)
After modification, print the log as follows:
after that, execute reboot, restart centos7, and observe whether it can be started normally.
1. Cause
When I run Ubuntu through k8s, I execute the following script
#!/bin/bash
service ssh start
echo root:$1|chpasswd
After the container is started, there is no resident foreground process inside the container, which causes the container to exit after the container is started successfully, thus continuing to restart.
2. Solution
At startup, perform a task that will never be completed
command: ["/bin/bash", "-ce", "tail -f /dev/null"]
Add the following to the script above:
#!/bin/bash
service ssh start
echo root:$1|chpasswd
tail -f /dev/null
Successfully solved, this script can be executed successfully, and the container can be started successfully
mount error(22): Invalid argument Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)
Check the Log:
No dialect specified on mount. Default has changed to a more secure dialect, SMB2.1 or later (e.g. SMB3), from CIFS (SMB1). To use the less secure SMB1 dialect to access old servers which do not support SMB3 (or SMB2.1) specify vers=1.0 on mount.
Reason and Solution:No cifs share version specified, cifs are divided into smb1.0/2.0/3.0/3.1
mount -t cifs //ip/data /test -o username=test,password=test,vers=3.0
The following problems occurred when logging on the server today:
Phenomenon
1. Remote CRT login
[root@fast70 ~]# vim /etc/security/limits.d/20-nproc.conf
# Default limit for number of user's processes to prevent
# accidental fork bombs.
# See rhbz #432903 for reasoning.
* soft nproc 65535
root soft nproc unlimited
2. You can log in from other accounts. There is no problem to view the process and load on top
switch to root, and then switch to the fast account
[ root@fast70 ~]# su – fast
last login: May 12 00:32:45 CST 2020 from 192.168.0.9pts/2
Su: warning: cannot change to/home/fast Directory: there is no file or directory
Su: failed to execute/bin/bash: the resource is temporarily unavailable
Solution:
enter the root user
Modify /etc/security/limits.d/20-nproc.conf
expand the maximum value of * user connection (4096 -> 65535)
[root@fast70 ~]# vim /etc/security/limits.d/20-nproc.conf
# Default limit for number of user's processes to prevent
# accidental fork bombs.
# See rhbz #432903 for reasoning.
* soft nproc 65535
root soft nproc unlimited
After modification, remote login and account switching can be used normally
however, I always feel that the root cause has not been found. It must be related to resource occupation, but I can’t find the specific location
I have contacted watchdog to kill the process several times before. I doubt that it is still a symptom rather than a root cause
Environment: Center OS 7.6 virtual machine
Log error: kernel: BLK_ update_ request: I/O error, dev fd0, sector 0
Query the error information and find that there may be no floppy disk, and the floppy disk drive is loaded when the system is started.
Verification: lsmod | grep float
Step 1: (Not Work)
Try creating nofloppy.conf in the /etc/modprobe.d/ directory to disable the floppy module from loading on boot
vim /etc/modprobe.d/blacklist.conf
#Add command line
blacklist floppy
Or
echo "blacklist floppy" | tee /etc/modprobe.d/blacklist-floppy.conf reboot
Step 2: The use of blacklist does not disable the way, and finally choose to add the following code in grub to boot disable
vim /boot/grub2/grub.cfg #Add code modprobe.blacklist=floppy #Disable floppy drive reboot
After rebooting and checking the logs, no errors were reported.
When you enter the kernel directory, compile the kernel, and execute make menuconfig, you are prompted as follows:
*** Unable to find the ncurses libraries or the *** required header files. *** 'make menuconfig' requires the ncurses libraries. *** *** Install ncurses (ncurses-devel) and try again. *** scripts/kconfig/Makefile:202: recipe for target 'scripts/kconfig/dochecklxdialog' failed make[1]: *** [scripts/kconfig/dochecklxdialog] Error 1 Makefile:520: recipe for target 'menuconfig' failed make: *** [menuconfig] Error 2
How to Solve:
1. Check out .bashrc
2… Solve according to the error: apt-get install ncurses-devel , again with the error.
E: Unable to locate package ncurses-devel
3. The above reason is because the system lacks libncurses library, so install it: sudo apt-get install libncurses-dev
4. Make menuconfig again, successfully: sudo apt-get install libncurses-dev