e2fscking problem after using ext2ifs
lo all,
i have been using ext2ifs for 10 months, and after 500gb drive got full i got few I/O errors. i booted linux, unmounted, and fsck'ed. after 4-5 days of cloning multiple blocks i got to optimizing dirs and got segfault. after that i stupidly run fsck with -y option and it deleted my journal and superblock :D after that i used differend available superblocks (-b x), and drive got more corruputed... errors are currently so numerous that looking errors and pressing yes to questions would take many many hours. fsck with -p option usually fails to cloning multiple blocks or error reading block x (Attempt to read block from filesystem resulted in short read) while reading indirect blocks of inode y. now i agree that fscking can be dangerous, for my mood & drive. my plans are buying another 500gb drive for raw backup and searching/learning few weeks about data-backup, journal-backup and fscking. is this really necessary? any good links would be nice 2 have. thanks. t: teh_stupid1 p.s some info # uname -a Linux c-laptop 2.6.22-14-generic #1 SMP Tue Feb 12 02:46:46 UTC 2008 x86_64 GNU/Linux # fdisk -l | grep sda4 /dev/sda4 974 60801 480568410 83 Linux # dmesg | tail -n 3 [23871.163659] attempt to access beyond end of device [23871.163668] sda: rw=0, want=753308173, limit=690022279 [23871.163674] Buffer I/O error on device sda4, logical block 184419231 # lsusb | grep West Bus 003 Device 002: ID 1058:1001 Western Digital Technologies, Inc. |
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Here is a good in depth discussion of backup: http://en.wikipedia.org/wiki/Backup ------------------ Steve Stites |
In addition to what Jailbait already wrote here's a different take on things. Not that the conclusion is different though...
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While what you've written does not allow anyone to have an objective or conclusive fix on the fscked up state of your data, I do seriously doubt you'll be recovering much partial data, let alone items in full. The question "is it necessary" can IMHO only be answered by you: it'll take time learning, it'll take time recovering and even then there's absolutely no guarantee at all. |
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