Backup your life data

I’m switching to English as the main language for this blog, one reason is try to improve my English writing, so please excuse my poor English.

This story begins when I was in visiting US. I just take my laptop and one external HDD with me, so all my photos taken in US are stored in my external HDD without any backup. Once, I managed installing win 7 on my laptop, I accidentally format one of my drive, and failed to recover them. (The detail story is I changed the partition scheme which change the partition table, then a lot of copy/write to the HDD, so it is impossible to recover the data) That accident cost me about over 100 photos which I taken at downtown seattle, from then on, I became extremely serious about backup.

So what to backup. Generally, your life data is the most important and should be first priority for backup. Almost all other data can be retrieve via different ways. E.g. you can buy the music/movie you lost from store, softwares maybe more expensive, but you still can make it. But for the data about you or created by you, most likely you can not retrieve them via commercial purchase.

Back up all the materials created by you, your documents, diary, photo, family video. maybe more like your game score, email archieve etc.

Backup now, because there are some data in your computer is the only copy of that digitalized information in the world.

TestDisk : A FANTASIC FREE Data Recovery Tool

I’ve been working on installing a Mac OS X 10.6 Snow Leopard on my Dell Mini 9. (also trying Dual boot) I’ve rapidly format, and change the partition of my USB-Key and also USB-HDD. And I deleted the partition table of my USB-HDD which contains lots of important data (about 200G). During the panic finding solutions, I’ve tried lots of recovery tools including some commercial softwares, but unfortunately some of them won’t work at all, some of them take hours of time and had to recover the data to an external disk (because they lack the function to reconstruct partition table).

Testdisklogo_clear_100

Finally, I got TestDisk a handy command line tool.  Analysis, find the lost partition table, reconstruct — IT WORKS! — only take less than 5 minutes and recovery the entire partition.  It ROCKS, a fantastic tool 🙂

前些日子一直在尝试在DellMini 9 上面装Mac OS X Snow Leopard (另外还在尝试双启动)。因此,难免的要经常的进行格式化硬盘的操作。然后呢,一不小心,把我的一个USB移动硬盘给格式化了,分区表丢失,上面有不少的重要数据,包括一些照片,文档以及Galgame若干(该硬盘的Galgame目录曾经就不小心被我删过一次,辛苦恢复回来的)。慌乱之中找了不少恢复软件,其中还包括一些商业软件,但是,有些不是不能找到丢失的数据,就是需要非常长的扫描时间,然后还必须将数据恢复到另外一块盘上(主要是因为不支持重建分区表)

最终我找到了TestDisk,一个简单强大的命令行工具,分析,寻找丢失的分区表,找到之后直接原盘上重建分区表,整个分区就恢复了,总共不超过5分钟。TestDisk真的是一个相当优秀的数据恢复软件。

官僚机构与死锁

最近一边在申请参加EGSR的事情,另外一方面在申请去Redmond实习。两边都是要申请Visa,在这其中要经历无数的官僚机构以及复杂的操作,而最最严重的是,这里面有好多嵌套甚至死锁的麻烦事情…..

首先,最猥琐的就是EGSR的注册与学校经费支持的申请。

根据清华大学的规定,申请参加国际会议经费支持(包括注册费用),需要国际会议开具正式邀请函。而且这是申请审批的流程,而非最终给以经费支持时所需要出具。也就是说,即使申请了也会有得不到支持的情况。
然则,根据EGSR的规定,开具正式邀请函需要正式注册EGSR,缴纳注册费(在开会前30天之内取消注册也不能还钱)。

于是死锁,如果要申请经费,就需要先注册。即使不一定能够申请下来。

当然,这个问题还算是很好的解决了。EGSR的人很nice,还是例外的给我先开了邀请函来(不幸的是,据说那个邀请函开的有问题….)。否则,我就要白花注册费了,因为最后学校的审批因为种种原因没搞定……

Redmond的实习也是。

实习的时间是要视签证的情况而定的,如果签证签不到只好推迟。
H3签证需要Redmond开相关表单,表单上写明出国时间。
Redmond需要学校开具出派函
清华大学规定,开出派函需要先填写申请表,写明出国时间。然则,这个时间是有可能受到签证的情况制约的。

于是乎,只好先大概估计一个实习时间,然后,学校填表,拿到相关东西,到Redmond,约签证(一切东西都串行化…..低效率的典范)

sigh 但愿别出啥问题吧…