Tag Archives: Network

Disk BLK_ update_ request: I/O error

1. Try 1:
Blk_update_request: I/O error, dev fd0, Sector 0 error resolved

Reference document:

https://bbs.archlinux.org/viewtopic.php?pid=1166918#p1166918
http://www.cyberciti.biz/faq/linux-end_request-ioerror-dev-fd0-sector0/

blk_update_request: I/O error, dev fd0, sector 0 when booting Linux on hardware with floppy drive controller on
Resolve the error message by closing the floppy drive module:
#
# /etc/modprobe.d/modprobe.conf
#
blacklist floppy
Try 2:

< strong> When dMESg occurs, the following message indicates a problem with the disk. /strong> < br> < br> Info fld=0x139066d0

end_request: I/O error, dev sda, sector 328230608

The I/O error Buffer
The on
device sda, logical block 41028826

sd 0:0:0:0: SCSI error:
The return
code = 0x08000002

sda: Current: sense key: Medium Error


Add. Sense: Unrecovered read error

 

Info fld=0x139066d0

end_request: I/O error, dev sda, sector 328230608

The I/O error Buffer
The on
device sda, logical block 41028826

sd 0:0:0:0: SCSI error:
The return
code = 0x08000002

sda: Current: sense key: Medium Error


Add. Sense: Unrecovered read error

 

Info fld=0x139066d0

end_request: I/O error, dev sda, sector 328230608

The I/O error Buffer
The on
device sda, logical block 41028826

sd 0:0:0:0: SCSI error:
The return
code = 0x08000002

sda: Current: sense key: Medium Error


Add. Sense: Unrecovered read error

 

Info fld=0x139066d0

end_request: I/O error, dev sda, sector 328230608

The I/O error Buffer
The on
device sda, logical block 41028826

sd 0:0:0:0: SCSI error:
The return
code = 0x08000002

sda: Current: sense key: Medium Error


Add. Sense: Unrecovered read error

1. First detect the failure
Badblock-s-v-o /root/bb.log /dev/sda save the results to bb.log

[root@logging ~]# badblocks -s -v -o /root/badblocks.log /dev/sda
Checking blocks 0 to 586061784
Checking for bad blocks (read-only test): done                                
Pass completed, 173 bad blocks found.

 
Smartctl-a /dev/sda3 (Quickly detect errors after read and write)
2. Repair method of logical bad path

, badblock-s-w /dev/sda END START (END stands for the END of the sector to be repaired, START stands for the beginning of the sector to be repaired)
, fsck-a /dev/sda
After the repair, badblock-s-v-o /root/bb.log /dev/sda will be used to monitor for bad tracks. If there are bad tracks, it is a bad hard drive. Hard disk bad way to use the isolation method, first of all, the monitoring of the hard disk bad way and then partition when the hard disk bad way in the sector is divided in a partition (size is generally greater than the size of the bad sector), the partition of the bad way partition can achieve the purpose of isolation
3. 0 Bad track and hard drive (ready to replace hard drive)
The repair method of bad track of 0 track is to isolate track of 0 track. When using FDSK to divide the area, divide the area from track of 1.
If it's a bad drive, it can only be quarantined and not repaired
 

Reproduced in: https://www.cnblogs.com/wangjq19920210/p/9238910.html

Securityerror: error ᦇ 2148: SWF file (SWF file cannot access local resources)

SecurityError: Error # 2148: SWF file file:///F:/work2010/tiger/rmpublisher.air/bin-debug/index.swf file:///F:/work2010/tiger/rmpublisher.air/bin-debug/plugins/plugins.xml cannot access the local resources. Only file system-limited SWF files and trusted local SWF files can access local resources.
at flash.net: : URLStream/load ()
at flash.net: : the URLLoader/load ()
the at com. Edlt. Utils: : Settings/loadSettings () [D:
Solutions:
The first:
Right click on flex project –& GT; properties–> ActionscriptCompiler–> Additional compiler arguments
plus “-use-network=false” is OK
SWF will not be able to access network resources such as socket communications.
So it’s better not to use it that way.
The second:
I have found a lot of articles on security sandbox on the Internet, most of which are about how to solve the problem of network resource access, which is different from what I want in this article. Although these articles do not address the issue of local resource access. The solution to this problem should be similar, with the network adding a trusted domain name in a cross or something file to allow access, then the local resource should also be able to add a local resource path somewhere to allow access.
The details are as follows: find system32\Macromed\Flash\FlashPlayerTrust in the Windows installation directory, create a text file in this directory, enter the detailed path of Flash to access local resources in the file, and save. Execute SWF, no more errors. OK
For example: in C:\WINDOWS\ System32 \Flash\FlashPlayerTrust directory to add a file, such as: 1. TXT (file name can be arbitrarily started), the file content is: “D:\demo\test\” that is the project path, of course, can also be set to “D:\”

ARP – s in win7 (ARP binding under win7)

1. Want to use arp-s to add static binding MAC and IP address

2. OS Windows 7 English

3. (1) prompt The ARP entry addition failed: The requested operation requires elevation

solution, use the administrator identity to run cmd.exe

4.(2) arp-s, still error.

prompt: The ARP entry addition failed: Access is denied

reason: win 7 does not support binding to an existing arp address, that is, the ip-mac you want to add already exists in the arp table.

5. In win7 to achieve the binding according to the following operation

(1) using netsh I I show in

C:/Windows/system32 & gt; netsh i i show in

(2) view the idx

of the network card being used

independence Idx Met MTU State Name
— — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
1 50 4294967295 connected Loopback The Pseudo – Interface 1
13 25 1500 connected Wireless Network Connection
11 May 1500 disconnected Local Area Connection

(2) use the command (where 13 is the idx of the network card being used)

note the space bar, each symbol is followed by a space

C:/Windows/system32> Nesh-c “I I” add neighbors 13 “192.168.0.1” “00-22-b0-f8-0
d-6e”

(3) using arp-a

to see if

is successful

C:/Windows/system32 & gt; arp -a

Interface: 192.168.0.99-0 xd
Internet Address Physical Address Type
192.168.0.1 00-22 – b0 – f8-0-6 d e static

type static


6. Use netsh I I reset

is cancelled. Restart is required to take effect

Job for network.service Failed because the control process exited with error code. See “SystemC

problem overview

about this problem, the blogger encountered in the process of virtual machine migration. After the migration, the network needs to be reallocated. After the configuration is completed, when the network service is restarted, the error is reported: “Job for network. Service failed because the control process exited with error code. See “systemctl status network. Service” and “journalctl-xe” for details

as follows:

to check the network status, enter the command “systemctl status net.service”, as shown in the figure below:

network service failed to start!!

solution

check for a while, finally found is an extra network configuration file, as shown in the figure below:

the reason is caused by the old file web services launch failure, delete the old file, found again to restart the network service, altogether OK
1. Delete old file and enter the command “rm-rf ifcfg-ens33.old”;

2. Restart the network service, enter the command “systemctl restart net.service”;

3. To check whether the network service has been started successfully, enter the command “systemctl status net.service”, as shown in the figure below:

supplement

on December 16, 2019

the usual virtual machine network mode is NAT bridging mode, so the virtual machine related services need to be started, as shown in the figure below:

the first one is automatically assigned IP address, the second one is network bridging NAT, these two must be started, otherwise the virtual machine network will not be able to use.

well, the solution for Job for network. Service failed because the control process exited with error code. See “systemc “has been written here.
.
.

The

as:

hua wang

contact the author:

[email protected]

to source:

CSDN (Chinese Software Developer Network)

the original article:

https://blog.csdn.net/Hello_World_QWP/article/details/101162295

copyright statement: this article is the original blogger article, please be sure to indicate the source of the blog when reprinting!