How to recover a high capacity usb flash drive, with a hundred of files and totally unreadable in a GNU/Linux system.
The testdisk tool works fine. It is can get in the Debian/ubuntu/LinuxMint repository. Type, as a root user, the following command to install:
Add the universal repository
sudo add-apt-repository "deb http://archive.ubuntu.com/ubuntu $(lsb_release -sc) universe" and sudo add-apt-repository "deb http://archive.ubuntu.com/ubuntu $(lsb_release -sc) main universe restricted multiverse" and sudo add-apt-repository "deb http://archive.canonical.com/ubuntu $(lsb_release -sc) partner"
# sudo apt-get install testdisk
Once upon the tool has been installed, just execute as root:
# testdisk
So, the initial screen appears, with informations and an action main menu:
TestDisk 6.13, Data Recovery Utility, November 2011 Christophe GRENIERhttp://www.cgsecurity.org TestDisk is free data recovery software designed to help recover lost partitions and/or make non-booting disks bootable again when these symptoms are caused by faulty software, certain types of viruses or human error. It can also be used to repair some filesystem errors. Information gathered during TestDisk use can be recorded for later review. If you choose to create the text file, testdisk.log , it will contain TestDisk options, technical information and various outputs; including any folder/file names TestDisk was used to find and list onscreen. Use arrow keys to select, then press Enter key: >[ Create ] Create a new log file [ Append ] Append information to log file [ No Log ] Don't record anything
Let the first option (Create) to run. To do it, type
TestDisk 6.13, Data Recovery Utility, November 2011 Christophe GRENIERhttp://www.cgsecurity.org TestDisk is free software, and comes with ABSOLUTELY NO WARRANTY. Select a media (use Arrow keys, then press Enter): >Disk /dev/sda - 500 GB / 465 GiB - ST500DM002-1BD142 Disk /dev/sdb - 32 GB / 29 GiB - SanDisk Cruzer Blade Note: Disk capacity must be correctly detected for a successful recovery. If a disk listed above has incorrect size, check HD jumper settings, BIOS detection, and install the latest OS patches and disk drivers. ecover files or partitions off dead flash drives, usually fried by Windows, or any hard drive or removable media
This screen shows the options to make the recovering actions. In this case,
the better one is the second option, to verify the flash drive:
TestDisk 6.13, Data Recovery Utility, November 2011 Christophe GRENIERhttp://www.cgsecurity.org Disk /dev/sdb - 32 GB / 29 GiB - SanDisk Cruzer Blade Please select the partition table type, press Enter when done. >[Intel ] Intel/PC partition [EFI GPT] EFI GPT partition map (Mac i386, some x86_64...) [Humax ] Humax partition table [Mac ] Apple partition map [None ] Non partitioned media [Sun ] Sun Solaris partition [XBox ] XBox partition [Return ] Return to disk selection Note: Do NOT select 'None' for media with only a single partition. It's very rare for a drive to be 'Non-partitioned'.
So, choose the partition type, marked as default. Type
TestDisk 6.13, Data Recovery Utility, November 2011 Christophe GRENIERhttp://www.cgsecurity.org Disk /dev/sdb - 32 GB / 29 GiB - CHS 30532 64 32 >[ Analyse ] Analyse current partition structure and search for lost partitions [ Advanced ] Filesystem Utils [ Geometry ] Change disk geometry [ Options ] Modify options [ MBR Code ] Write TestDisk MBR code to first sector [ Delete ] Delete all data in the partition table [ Quit ] Return to disk selection Note: Correct disk geometry is required for a successful recovery. 'Analyse' process may give some warnings if it thinks the logical geometry is mismatched.
The diagnosis is a unreadable flashdrive. So, select the first option, Analyse.
TestDisk 6.13, Data Recovery Utility, November 2011 Christophe GRENIERLet's go to Quick Search:http://www.cgsecurity.org Disk /dev/sdb - 32 GB / 29 GiB - CHS 30532 64 32 Current partition structure: Partition Start End Size in sectors Warning: Incorrect number of heads/cylinder 255 (FAT) != 64 (HD) Warning: Incorrect number of sectors per track 63 (FAT) != 32 (HD) 1 P FAT32 LBA 0 1 1 30532 33 32 62530592 [NO NAME] Warning: Bad starting sector (CHS and LBA don't match) No partition is bootable *=Primary bootable P=Primary L=Logical E=Extended D=Deleted >[Quick Search] [ Backup ] Try to locate partition
TestDisk 6.13, Data Recovery Utility, November 2011 Christophe GRENIERhttp://www.cgsecurity.org Should TestDisk search for partition created under Vista or later ? [Y/N] (answer Yes if unsure)
The answer is Yes:
Original article posted in: http://www.dicas-l.com.br/arquivo/recuperacao_de_arquivos_de_pendrives_discos_rigidos_ou_qualquer_tipo_de_midia_removivel.php#.UVh32zeSoy4
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(Portuguese/Português)
Como recuperar um pendrive de alta capacidade, com centenas de arquivos, e totalmente irreconhecível no sistema GNU/Linux.
O utilitário testdisk funciona bem.O aplicativo faz parte do repositório Debian/Ubuntu/LinuxMint. Para instalar digite, como root, o seguinte comando:
# apt-get install testdiskUma vez que o software tenha sido instalado, basta executar, como root, o comando abaixo:
# testdiskAparecerá então a tela inicial do programa, com informações e um menu inicial de ações:
TestDisk 6.13, Data Recovery Utility, November 2011 Christophe GRENIERVamos deixar na primeira opção (Create). Para prosseguir, teclehttp://www.cgsecurity.org TestDisk is free data recovery software designed to help recover lost partitions and/or make non-booting disks bootable again when these symptoms are caused by faulty software, certain types of viruses or human error. It can also be used to repair some filesystem errors. Information gathered during TestDisk use can be recorded for later review. If you choose to create the text file, testdisk.log , it will contain TestDisk options, technical information and various outputs; including any folder/file names TestDisk was used to find and list onscreen. Use arrow keys to select, then press Enter key: >[ Create ] Create a new log file [ Append ] Append information to log file [ No Log ] Don't record anything
TestDisk 6.13, Data Recovery Utility, November 2011 Christophe GRENIERNesta tela temos os dispositivos para os quais poderemos efetuar ações de recuperação. Neste caso, a minha opção é por realizar uma verificação do pendrive, a segunda opção disponível.http://www.cgsecurity.org TestDisk is free software, and comes with ABSOLUTELY NO WARRANTY. Select a media (use Arrow keys, then press Enter): >Disk /dev/sda - 500 GB / 465 GiB - ST500DM002-1BD142 Disk /dev/sdb - 32 GB / 29 GiB - SanDisk Cruzer Blade Note: Disk capacity must be correctly detected for a successful recovery. If a disk listed above has incorrect size, check HD jumper settings, BIOS detection, and install the latest OS patches and disk drivers. ecover files or partitions off dead flash drives, usually fried by Windows, or any hard drive or removable media
TestDisk 6.13, Data Recovery Utility, November 2011 Christophe GRENIERSelecionamos então o tipo de partição, que já vem assinalada por padrão. Teclamoshttp://www.cgsecurity.org Disk /dev/sdb - 32 GB / 29 GiB - SanDisk Cruzer Blade Please select the partition table type, press Enter when done. >[Intel ] Intel/PC partition [EFI GPT] EFI GPT partition map (Mac i386, some x86_64...) [Humax ] Humax partition table [Mac ] Apple partition map [None ] Non partitioned media [Sun ] Sun Solaris partition [XBox ] XBox partition [Return ] Return to disk selection Note: Do NOT select 'None' for media with only a single partition. It's very rare for a drive to be 'Non-partitioned'.
TestDisk 6.13, Data Recovery Utility, November 2011 Christophe GRENIERA situação é de um pendrive ilegível, seleciono então a primeira opção, Analyse.http://www.cgsecurity.org Disk /dev/sdb - 32 GB / 29 GiB - CHS 30532 64 32 >[ Analyse ] Analyse current partition structure and search for lost partitions [ Advanced ] Filesystem Utils [ Geometry ] Change disk geometry [ Options ] Modify options [ MBR Code ] Write TestDisk MBR code to first sector [ Delete ] Delete all data in the partition table [ Quit ] Return to disk selection Note: Correct disk geometry is required for a successful recovery. 'Analyse' process may give some warnings if it thinks the logical geometry is mismatched.
TestDisk 6.13, Data Recovery Utility, November 2011 Christophe GRENIERVamos então para a busca rápida (Quick Search):http://www.cgsecurity.org Disk /dev/sdb - 32 GB / 29 GiB - CHS 30532 64 32 Current partition structure: Partition Start End Size in sectors Warning: Incorrect number of heads/cylinder 255 (FAT) != 64 (HD) Warning: Incorrect number of sectors per track 63 (FAT) != 32 (HD) 1 P FAT32 LBA 0 1 1 30532 33 32 62530592 [NO NAME] Warning: Bad starting sector (CHS and LBA don't match) No partition is bootable *=Primary bootable P=Primary L=Logical E=Extended D=Deleted >[Quick Search] [ Backup ] Try to locate partition
TestDisk 6.13, Data Recovery Utility, November 2011 Christophe GRENIERhttp://www.cgsecurity.org Should TestDisk search for partition created under Vista or later ? [Y/N] (answer Yes if unsure)
Respondo então Yes:
artigo original postado em:
http://www.dicas-l.com.br/arquivo/recuperacao_de_arquivos_de_pendrives_discos_rigidos_ou_qualquer_tipo_de_midia_removivel.php#.UVh32zeSoy4
