Tony Nelson wrote:
On 09-12-01 13:01:47, Dan Thurman wrote:
> Which is the preferred "backup" solution?
>
...
> I am trying to get data off of disk1 which is failing (via smartd)
> and wish to use the correct backup and restore method getting the
> data off of disk1 onto disk2 without "integrity loss", whatever that
> means.
>
You don't seem to be doing a backup, but rather making a copy of an
existing drive. You should probably do that and then also make a
backup some other way.
To copy a disk, I always use dd and then expand the last partition as
needed (it's usually LVM2, so I then expand some of the LVs). The disk
I usually do this to has WinXP (and Win98) as well as Linux /boot and
LVM2 partitions.
> In the case of dd, it falls flat, if there are sector errors and this
> would not work, as in my case - so backup programs that do byte copy
> would perhaps also fail.
>
...
ddrescue
I tried ddrescue and it seems to "work", except that there was
4 errors reported. When I went to look at the mount, it seems
to indicate that the partition was not readable, perhaps left in
some unknown state. Are there any ddrescue options that I
need to be aware of? The command I used was:
ddrescue /dev/sda2 /dev/sdb2
I tried to go into a working OS (XP) and tried to use the
chkdsk /F E: and it says that it could not locate the master
tables and kills chkdsk. It also says it is not a NTFS partition
either.
This of course was on a Vista partition.
Thanks-
Dan