Gentoo Archives: gentoo-user

From: Grant <emailgrant@×××××.com>
To: Gentoo mailing list <gentoo-user@l.g.o>
Subject: [gentoo-user] USB crucial file recovery
Date: Sun, 28 Aug 2016 18:49:55
Message-Id: CAN0CFw3UD63KTsWdvbSvd_273-gXtfMtB9E1aj-9DOopq0fGiw@mail.gmail.com
I have a USB stick with a crucial file on it (and only an old backup
elsewhere).  It's formatted NTFS because I wanted to be able to open
the file on various Gentoo systems and my research indicated that NTFS
was the best solution.

I decided to copy a 10GB file from a USB hard disk directly to the USB
stick this morning and I ran into errors so I canceled the operation
and now the file manager (thunar) has been stuck for well over an hour
and I'm getting errors like these over and over:

[ 2794.535814] Buffer I/O error on dev sdc1, logical block 2134893,
lost async page write
[ 2794.535819] Buffer I/O error on dev sdc1, logical block 2134894,
lost async page write
[ 2794.535822] Buffer I/O error on dev sdc1, logical block 2134895,
lost async page write
[ 2794.535824] Buffer I/O error on dev sdc1, logical block 2134896,
lost async page write
[ 2794.535826] Buffer I/O error on dev sdc1, logical block 2134897,
lost async page write
[ 2794.535828] Buffer I/O error on dev sdc1, logical block 2134898,
lost async page write
[ 2794.535830] Buffer I/O error on dev sdc1, logical block 2134899,
lost async page write
[ 2794.535832] Buffer I/O error on dev sdc1, logical block 2134900,
lost async page write
[ 2794.535835] Buffer I/O error on dev sdc1, logical block 2134901,
lost async page write
[ 2794.535837] Buffer I/O error on dev sdc1, logical block 2134902,
lost async page write
[ 2842.568843] sd 9:0:0:0: [sdc] tag#0 FAILED Result:
hostbyte=DID_ERROR driverbyte=DRIVER_SENSE
[ 2842.568849] sd 9:0:0:0: [sdc] tag#0 Sense Key : Hardware Error [current]
[ 2842.568852] sd 9:0:0:0: [sdc] tag#0 Add. Sense: No additional sense
information
[ 2842.568857] sd 9:0:0:0: [sdc] tag#0 CDB: Write(10) 2a 00 01 04 a4
58 00 00 f0 00
[ 2842.568859] blk_update_request: I/O error, dev sdc, sector 17081432
[ 2842.568862] buffer_io_error: 20 callbacks suppressed

nmon says sdc is 100% busy but doesn't show any reading or writing.  I
once pulled the USB stick in a situation like this and I ended up
having to reformat it which I need to avoid this time since the file
is crucial.  What should I do?

- Grant

Replies

Subject Author
Re: [gentoo-user] USB crucial file recovery Neil Bothwick <neil@××××××××××.uk>
Re: [gentoo-user] USB crucial file recovery Mick <michaelkintzios@×××××.com>
Re: [gentoo-user] USB crucial file recovery R0b0t1 <r030t1@×××××.com>