Mounting ddrescue image after recovery (in over my head)
- by BorgDomination
I'm having problems mounting the recovery image. I've tried to mount the image multiple ways.
quark@DS9 ~ $ sudo mount -t ext4 /media/jump1/1recover/sdb1.img /mnt
mount: wrong fs type, bad option, bad superblock on /dev/loop0,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
quark@DS9 ~ $ sudo mount -r -o loop /media/jump1/1recover/sdb1.img recover
mount: you must specify the filesystem type
quark@DS9 ~ $ sudo mount /media/jump1/1recover/sdb1.img mnt
mount: you must specify the filesystem type
It doesn't even give me detailed information on the file I just made, nautilus says it's 160gb.
quark@DS9 ~ $ file /media/jump1/1recover/sdb1.img
/media/jump1/1recover/sdb1.img: data
quark@DS9 ~ $ mmls /media/jump1/1recover/sdb1.img
Cannot determine partition type
I'm not sure what I'm doing wrong or if I started this process incorrectly from the beginning. I've outlined what I've done so far below. I'm clueless, I'd appreciate if someone had some input for me.
What I have done from the beginning
My laptop has two hard drives.
One has the dual boot Win7 / Linux Mint system files.
Secondary one contained my /home folder.
The laptop was jarred and the /home disk was broken.
I tried a LiveCD recovery, it failed. Wouldn't even load a Live session with the disk installed.
So I turned to ddrescue.
quark@DS9 ~ $ sudo fdisk -l
Disk /dev/sda: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders, total 312581808 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0009fc18
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 112642047 56320000 7 HPFS/NTFS/exFAT
/dev/sda2 138033152 312580095 87273472 83 Linux
/dev/sda3 112644094 138033151 12694529 5 Extended
/dev/sda5 112644096 132173823 9764864 83 Linux
/dev/sda6 132175872 138033151 2928640 82 Linux swap / Solaris
Partition table entries are not in disk order
Disk /dev/sdb: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders, total 312581808 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0002a8ea
Device Boot Start End Blocks Id System
/dev/sdb1 * 63 312576704 156288321 83 Linux
Disk /dev/sdc: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xed6d054b
Device Boot Start End Blocks Id System
/dev/sdc1 63 1953520064 976760001 7 HPFS/NTFS/exFAT
sda - 160g internal, holds all system files and all computer
functions.
sdb - 160g internal, BROKEN, contains about 140g of data I'd like
to recover.
sdc - 1T external, contains recovery image. Only place that has space
to do all this.
From this site, https://apps.education.ucsb.edu/wiki/Ddrescue
I used this script to create an image of the broken hard drive. I changed the destination to the external USB drive.
#!/bin/sh
prt=sdb1
src=/dev/$prt
dst=/media/jump1/1recover/$prt.img
log=$dst.log
sudo time ddrescue --no-split $src $dst $log
sudo time ddrescue --direct --max-retries=3 $src $dst $log
sudo time ddrescue --direct --retrim --max-retries=3 $src $dst $log
Everything looked like it came off without a hitch:
quark@DS9 ~ $ sudo bash recover1
Press Ctrl-C to interrupt
Initial status (read from logfile)
rescued: 0 B, errsize: 0 B, errors: 0
Current status
rescued: 160039 MB, errsize: 4096 B, current rate: 35588 B/s
ipos: 3584 B, errors: 1, average rate: 22859 kB/s
opos: 3584 B, time from last successful read: 0 s
Finished
12.78user 1060.42system 1:56:41elapsed 15%CPU (0avgtext+0avgdata 4944maxresident)k
312580958inputs+0outputs (1major+601minor)pagefaults 0swaps
Press Ctrl-C to interrupt
Initial status (read from logfile)
rescued: 160039 MB, errsize: 4096 B, errors: 1
Current status
rescued: 160039 MB, errsize: 1024 B, current rate: 0 B/s
ipos: 1536 B, errors: 1, average rate: 13 B/s
opos: 1536 B, time from last successful read: 1.3 m
Finished
0.00user 0.00system 3:43.95elapsed 0%CPU (0avgtext+0avgdata 4944maxresident)k
238inputs+0outputs (3major+374minor)pagefaults 0swaps
Press Ctrl-C to interrupt
Initial status (read from logfile)
rescued: 160039 MB, errsize: 1024 B, errors: 1
Current status
rescued: 160039 MB, errsize: 1024 B, current rate: 0 B/s
ipos: 1536 B, errors: 1, average rate: 0 B/s
opos: 1536 B, time from last successful read: 3.7 m
Finished
0.00user 0.00system 3:43.56elapsed 0%CPU (0avgtext+0avgdata 4944maxresident)k
8inputs+0outputs (0major+376minor)pagefaults 0swaps
It looks like, from where I'm standing it worked perfectly. Here's the log:
# Rescue Logfile. Created by GNU ddrescue version 1.14
# Command line: ddrescue --direct --retrim --max-retries=3 /dev/sdb1 /media/jump1/1recover/sdb1.img /media/jump1/1recover/sdb1.img.log
# current_pos current_status
0x00000600 +
# pos size status
0x00000000 0x00000400 +
0x00000400 0x00000400 -
0x00000800 0x254314FC00 +
I'm not sure how to proceed. Does this mean all of my data is lost????????
Appreciate ANY input!
