Recover Data from Crashed Disks with ddrescue command
How to save and recover Data from Crashed Disks with ddrescue command? This is program is useful to rescue data in case I/O error. How to solve problem “wrong fs type, bad option, bad superblock” error? mount: wrong fs type, bad option, bad superblock on 192.168.1.155:/home/shared, missing codepage or helper program, or other error (for several filesystems (e.g. nfs, cifs) you might need a /sbin/mount.<type> helper program) In some cases useful info is found in syslog - try dmesg | tail or so. My server OS: Centos 7 HDD1: /dev/sda1 HDD2: /dev/sdb1 ( mount point /mnt) HDD2: /dev/sdb1 is crash, not mount pint /mnt. How to do it! I attach a new HDD3 disk: /dev/sdc1 on my system. use ddrescue command. Install ddrescue on centos # yum install ddrescue How do I use ddrescue command rescue a partition in /dev/sdb1 to /dev/sdc1 ## is damaged, you will need to recreate it somehow on /dev/sdb. ## ddrescue -f -n /dev/sdb /dev/sdc logfile ddrescue -d -f -r3 /dev/sdb /dev/s