macintosh disk repair

　　We are pulling the U disk from the USB interface, if you forget to perform the uninstall operation of the USB USB drive directly out, or perform the uninstall operation is not complete, or because of the wrong operation, it may cause damage to the U disk, resulting in computer can not identify U disk. If this happens, a lot of people will think that the U

uses DMESG checks for information about disk errors, and is sure to find a large number of disk sector errors, as follows: end_request: I/O error, Dev 03:06 (SDA), Sector from the above output we may have a problem with the sector, using badblocks-s-v-o/root/badblocks.log/dev/sda Check to see if the hard drive is producing bad lanes and outputting to Badblocks.log. The log is about this patte

650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M01/71/62/wKiom1XNRmvAEc6eAANp9v5xqLM624.jpg "title=" 6.jpg " alt= "Wkiom1xnrmvaec6eaanp9v5xqlm624.jpg"/>Attempt to restart the system can not be restarted, the input command is not valid, and finally to the computer room to force shutdown, boot can not enter the system, prompted "file system cannot be found"After attempting to enter rescue mode "Linux Rescue" can not mount Sysimage, and finally solved by the following methodRepair method1.

650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M01/71/62/wKiom1XNRmvAEc6eAANp9v5xqLM624.jpg "title=" 6.jpg " alt= "Wkiom1xnrmvaec6eaanp9v5xqlm624.jpg"/>Attempt to restart the system can not be restarted, the input command is not valid, and finally to the computer room to force shutdown, boot can not enter the system, prompted "file system cannot be found"After attempting to enter rescue mode "Linux Rescue" can not mount Sysimage, and finally solved by the following methodRepair method1.

partition type (primary, extended, or logical), and generally select the primary disk partition. (Note: The following dialog boxes appear sequentially, so there is no copy of the screen here.) ) Next-Select the disk space capacity: Generally use the default size. Next-Assign a drive letter (or do not assign). Next-select "Format this partition as follows" to format (file system type, allocation unit size

Figure I First you can download the USB box, try their repair function, download successful after the main interface is opened as shown above. Direct access to U disk, mobile phone can be managed. This download small series found that the USB box optimized the main interface, the entire interface looks streamlined a lot, but also more aesthetic. Figure II Small series acces

exist, then check the directory, does not exist, manually established;Three again start CRScrsctl start crs crsctl check crsCSS appears healthyCRS appears healthyEVM appears healthyCRS,EVMD,CSSD started, but listen, the database fails to startFour can actually guess the reason behind, because it is mirror, all and 1 of the node information is changed to 2, the back is more cumbersomeCheck Alert_jkweb2.log:Syslog:cluster ready Services waiting on dependencies. Diagnostics In/tmp/crsctlModify the

mirrors the bad drive is replaced by a separate mirror operation on the 6th Drive, which adjusts the device for bad response, wait time, and skip bad sector data.After mirroring, the disks using the Winhex mirror under the Windows platform have all been mirrored, viewing the logs generated by Winhex, and discovering the IBM storage manager/ Frombyte.com and hard drive smart status, there are no errors in the number 1th, there are bad lanes, 10th and 13th, there are a large number of irregular b

Introduction of the system in the home of the U disk Tutorial article, about U disk fault Introduction to the majority of software. But in real life use, u disk hardware failures also occur frequently. For example, U disk interface is broken, this situation should do? U disk