giis-ext4 undelete

[lakshmi pathi]

My root filesystem is ext4 too, yet, but I tried to somehow convince
giis-ext4 to undeleted files from another device, mounted to /mnt/d1.

okay,mounting another ext4 device should be fine with giis-ext4.

No, I did not do that.
So that's reason for previous error message on "open_db".

giis-ext4 will be running as a cronjob, scanning
the "protected directories" and keeping a log of changes in there, to be
able to recover them later on?

giis-ext4 will run from cronjob from every "auto update time"
and scanning protected directories and keeps track of files meta-data
(inode) but not actual file contents.(data blocks)
If something deleted and assuming the deleted files contents are not
overwritten,yet. It recovers them using files meta-data.
So the disadvantage is , giis-ext4 won't recover files deleted before it's
installation.


Program received signal SIGSEGV, Segmentation fault.
strlen () at ../sysdeps/x86_64/strlen.S:31

I haven't seen this error with Fedora/Ubuntu , I'll debug more about this
and hopefully find a solution and post it here.

Thanks.

-- 
----
Cheers,
Lakshmipathi.G
www.giis.co.in

On Sun, Feb 14, 2010 at 2:50 AM, Christian Kujau <lists at nerdbynature.de>wrote:

> On Sat, 13 Feb 2010 at 20:16, lakshmi pathi wrote:
> > 1.Is your root file system (/dev/xvda1) is ext4?
>
> My root filesystem is ext4 too, yet, but I tried to somehow convince
> giis-ext4 to undeleted files from another device, mounted to /mnt/d1.
>
> > 2.Have you added the directory /mnt/d1 using "giis-ext4 --install"
> option?
>
> No, I did not do that. I have the the INSTALL file mentioning the "-i"
> switch but I did not know what it meant with "which directories to
> protect". I take it that giis-ext4 will be running as a cronjob, scanning
> the "protected directories" and keeping a log of changes in there, to be
> able to recover them later on?
>
> > Because you need to configure it to protect important directories, in
> this
> > case add /mnt/d1 before running "giis-ext4 -g".
>
> I've tried that now. However, I cannot add /mnt/d1 (which is a ext4
> mountpoint) to the list, as giis-ext4 will segfault then. When I add some
> directory from the root filesystem, --install will run successfully.
>
> Christian.
>
>
> Script started on Sat Feb 13 21:59:34 2010
> # df -h .
> Filesystem            Size  Used Avail Use% Mounted on
> /dev/mapper/vg0-lv0   485M   35M  425M   8% /mnt/d1
>
> # gdb /usr/local/src/giis-ext4/bin/giis-ext4
> GNU gdb (GDB) 7.0.1-debian
> Reading symbols from /usr/local/src/giis-ext4/bin/giis-ext4...(no debugging
> symbols found)...done.
> (gdb) run -i
> Starting program: /usr/local/src/giis-ext4/bin/giis-ext4 -i
> [Thread debugging using libthread_db enabled]
>
>  Device Found : /dev/xvda1
>  giis : Taking snapshot of current File system
> [New Thread 0x7ffff6fae910 (LWP 6592)]
>
> [Thread 0x7ffff6fae910 (LWP 6592) exited]
>  giis-ext4:Installation begins..
>  giis-ext4: header table created
>  giis-ext4: file table created
>  What's the maximum directory depth?5
>
>  Enter the dirname name,that you would like to protect(Max. 7 directories)
>  Enter dirname:/mnt/d1
>
>  Press 1 to add/protect another directory else Press 0 to complete: 0
>
>  Check for newly files every 'auto update time' minutes.
> Enter auto update time: 10
>
>  Parsing directory  : /mnt/d1
>
> Program received signal SIGSEGV, Segmentation fault.
> strlen () at ../sysdeps/x86_64/strlen.S:31
> 31      ../sysdeps/x86_64/strlen.S: No such file or directory.
>        in ../sysdeps/x86_64/strlen.S
> Current language:  auto
> The current source language is "auto; currently asm".
> (gdb) bt
> #0  strlen () at ../sysdeps/x86_64/strlen.S:31
> #1  0x0000000000402134 in giis_ext4_sqlite_insert_record ()
> #2  0x0000000000401c05 in giis_ext4_parse_dir ()
> #3  0x0000000000401ad2 in giis_ext4_parse_dir ()
> #4  0x0000000000403ae6 in giis_ext4_update_dirs ()
> #5  0x0000000000401707 in main ()
> (gdb) bt full
> #0  strlen () at ../sysdeps/x86_64/strlen.S:31
> No locals.
> #1  0x0000000000402134 in giis_ext4_sqlite_insert_record ()
> No symbol table info available.
> #2  0x0000000000401c05 in giis_ext4_parse_dir ()
> No symbol table info available.
> #3  0x0000000000401ad2 in giis_ext4_parse_dir ()
> No symbol table info available.
> #4  0x0000000000403ae6 in giis_ext4_update_dirs ()
> No symbol table info available.
> #5  0x0000000000401707 in main ()
> No symbol table info available.
> (gdb) quit
> A debugging session is active.
>
>        Inferior 1 [process 6589] will be killed.
>
> Quit anyway? (y or n) y
> # exit
>
> Script done on Sat Feb 13 22:01:05 2010
> --
> BOFH excuse #283:
>
> Lawn mower blade in your fan need sharpening
>
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