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June 6, 2016 14:40
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recover Ubuntu after unmount system disk
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| 我的Ubuntu 14.04.3 LTS Desktop，我把左測的Files -> Devices 中的Ubuntu System disk給 unmount之後，從公司ssh連回家後發現做什麼都 | |
| disk i/o write error。 | |
| 我強迫重開機後，進入黑白的GRUB command line，用了 set prefix=(hda2,2)/boot/grub ; insmod normal ; normal | |
| 也沒有效果。 | |
| 使用 USB Boot Disk也沒有辦法修復。 | |
| 我以為這裡面的data都毀了corrupted，救不回來了。 | |
| 後來，我把ubuntu的SSD OCZ 240GB SSD 拆開到另一台電腦，用外接硬碟連接，另一台電腦用也用Ubuntu USB boot，沒想到發現外接SSD | |
| 裡面的資料完好如初。 | |
| 後來，我把那/boot/grub/grub.cfg 中的ro都改成rw，再接回原來的電腦，沒想到就可以用了。 |
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http://askubuntu.com/questions/468846/permanent-grub-edit-from-ro-to-rw