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 <a href="http://www.giis.co.in">www.giis.co.in</a> <div class="gmail_quote">On Sun, Feb 14, 2010 at 2:50 AM, Christian Kujau <<a href="mailto:lists@nerdbynature.de">lists@nerdbynature.de</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div class="im">On Sat, 13 Feb 2010 at 20:16, lakshmi pathi wrote: > 1.Is your root file system (/dev/xvda1) is ext4? </div>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. <div class="im"> > 2.Have you added the directory /mnt/d1 using "giis-ext4 --install" option? </div>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? <div class="im"> > Because you need to configure it to protect important directories, in this > case add /mnt/d1 before running "giis-ext4 -g". </div>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 <div class="im"> giis : Taking snapshot of current File system </div>[New Thread 0x7ffff6fae910 (LWP 6592)] [Thread 0x7ffff6fae910 (LWP 6592) exited] <div class="im"> giis-ext4:Installation begins.. giis-ext4: header table created giis-ext4: file table created What's the maximum directory depth?5 </div><div class="im"> Enter the dirname name,that you would like to protect(Max. 7 directories) Enter dirname:/mnt/d1 </div><div class="im"> 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 </div> 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 </blockquote></div>