Re: Progress report Re: Invoking ddrescue

2016-11-17 Thread Pascal Hambourg
Le 14/11/2016 à 21:23, Thomas Schmitt a écrit : If the computer has EFI boot firmware, if it is in non-legacy mode Windows XP x86/x64 cannot boot in UEFI mode. Any Windows version won't boot in UEFI mode from a disk with a DOS/MBR partition table.

Re: SUCESS!!! - was [Re: Progress report Re: Invoking ddrescue]

2016-11-15 Thread tomas
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Tue, Nov 15, 2016 at 07:57:11PM +, Brian wrote: > On Mon 14 Nov 2016 at 20:49:48 -0600, Richard Owlett wrote: [...] > > writen by some one who actually read my reply to tomas? > > Reading and understanding. From this threa

Re: SUCESS!!! - was [Re: Progress report Re: Invoking ddrescue]

2016-11-15 Thread Brian
On Mon 14 Nov 2016 at 20:49:48 -0600, Richard Owlett wrote: > On 11/14/2016 5:20 PM, Brian wrote: > >On Mon 14 Nov 2016 at 16:29:52 -0600, Richard Owlett wrote: > > > >>ddrescue has run to completion without _reported_ errors for all partitions > >>of the drive. I understand that does *NOT* guaran

Re: SUCESS!!! - was [Re: Progress report Re: Invoking ddrescue]

2016-11-15 Thread Greg Wooledge
On Tue, Nov 15, 2016 at 05:18:25PM +0100, Thomas Schmitt wrote: > David Wright wrote: > > That umask looks odd. > > Using a thing named "umask" to "Set the file permission on the filesystem" > is odd. No further speculation but only experiments would give clarity. It's how fat/vfat mounts work i

Re: SUCESS!!! - was [Re: Progress report Re: Invoking ddrescue]

2016-11-15 Thread Thomas Schmitt
Hi, David Wright wrote: > That umask looks odd. Using a thing named "umask" to "Set the file permission on the filesystem" is odd. No further speculation but only experiments would give clarity. i wrote: > > Not so easy to test: > Aren't we getting carried away a bit? After suspicion arised

Re: SUC[C]ESS!!! - was [Re: Progress report Re: Invoking ddrescue]

2016-11-15 Thread David Wright
On Tue 15 Nov 2016 at 12:39:49 (+0100), Thomas Schmitt wrote: > Richard Owlett wrote: > > ddrescue has run to completion without _reported_ errors for all partitions > > of the drive. I understand that does *NOT* guarantee that the files are not > > corrupt. > > A coarse test would be to mount the

Re: SUCESS!!! - was [Re: Progress report Re: Invoking ddrescue]

2016-11-15 Thread Thomas Schmitt
Hi, i wrote: > > Does somebody know an entertaining filter in Debian, which one could put > > between tar and wc to see a progress counter ? Brian wrote: > apt-get install pv. Oh yes. Waiting is much more fun with tar cf - /mnt/partition | pv | wc -c Have a nice day :) Thomas

Re: SUCESS!!! - was [Re: Progress report Re: Invoking ddrescue]

2016-11-15 Thread Richard Owlett
Your timing was good. I woke up this morning asking myself, "How do I read the recovered data?" ;/ However, Murphy's Law rules. Something died in my laptop dedicated to this experiment and systemd complains about the drive. There other strange symptoms so I decided to reinstall Debian [yes brut

Re: SUCESS!!! - was [Re: Progress report Re: Invoking ddrescue]

2016-11-15 Thread Brian
On Tue 15 Nov 2016 at 12:39:49 +0100, Thomas Schmitt wrote: [...] > tar cf - /mnt/partition | wc -c [...] > Does somebody know an entertaining filter in Debian, which one could put > between tar and wc to see a progress counter ? apt-get install pv.

Re: SUCESS!!! - was [Re: Progress report Re: Invoking ddrescue]

2016-11-15 Thread Thomas Schmitt
Hi, Richard Owlett wrote: > ddrescue has run to completion without _reported_ errors for all partitions > of the drive. I understand that does *NOT* guarantee that the files are not > corrupt. A coarse test would be to mount the partitions and to let some archiver crawl the tree to read the conte

Re: SUCESS!!! - was [Re: Progress report Re: Invoking ddrescue]

2016-11-14 Thread Richard Owlett
On 11/14/2016 5:20 PM, Brian wrote: On Mon 14 Nov 2016 at 16:29:52 -0600, Richard Owlett wrote: ddrescue has run to completion without _reported_ errors for all partitions of the drive. I understand that does *NOT* guarantee that the files are not corrupt. I've read the man page of su with rec

Re: SUCESS!!! - was [Re: Progress report Re: Invoking ddrescue]

2016-11-14 Thread Brian
On Mon 14 Nov 2016 at 16:29:52 -0600, Richard Owlett wrote: > ddrescue has run to completion without _reported_ errors for all partitions > of the drive. I understand that does *NOT* guarantee that the files are not > corrupt. > > I've read the man page of su with recent experiences in mind. > I

SUCESS!!! - was [Re: Progress report Re: Invoking ddrescue]

2016-11-14 Thread Richard Owlett
ddrescue has run to completion without _reported_ errors for all partitions of the drive. I understand that does *NOT* guarantee that the files are not corrupt. I've read the man page of su with recent experiences in mind. I agree with tomas that some of my recent problems relate to the differ

Re: Progress report Re: Invoking ddrescue

2016-11-14 Thread Richard Owlett
On 11/14/2016 2:27 PM, to...@tuxteam.de wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Mon, Nov 14, 2016 at 01:09:51PM -0600, Richard Owlett wrote: There is light at the end of the tunnel which doesn't appear to be an oncoming train ;/ This is a manually created transcript of what I'v

Re: Progress report Re: Invoking ddrescue

2016-11-14 Thread Richard Owlett
On 11/14/2016 2:23 PM, Thomas Schmitt wrote: Hi, Richard Owlett wrote: /dev/sdc3 extended This one does not need to be copied because it is a container around the "logical" partitions sd5, sdc6, sdc7. Back in the day I was involved in QA/QC and bailing out our field service peo

Re: Progress report Re: Invoking ddrescue

2016-11-14 Thread Richard Owlett
On 11/14/2016 2:16 PM, Jonathan Dowland wrote: On Mon, Nov 14, 2016 at 01:09:51PM -0600, Richard Owlett wrote: There is light at the end of the tunnel which doesn't appear to be an oncoming train ;/ This is a manually created transcript of what I've done this morning. I physically can *NOT* do

Re: Progress report Re: Invoking ddrescue

2016-11-14 Thread tomas
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Mon, Nov 14, 2016 at 01:09:51PM -0600, Richard Owlett wrote: > There is light at the end of the tunnel which doesn't appear to be > an oncoming train ;/ > > This is a manually created transcript of what I've done this morning. > I physically can *N

Re: Progress report Re: Invoking ddrescue

2016-11-14 Thread Thomas Schmitt
Hi, Richard Owlett wrote: > /dev/sdc3 extended This one does not need to be copied because it is a container around the "logical" partitions sd5, sdc6, sdc7. > ddrescue has been running for 1/2 and > reports rescuing ~47GB without any _reported_ errors. That's unexpected as > the parti

Re: Progress report Re: Invoking ddrescue

2016-11-14 Thread Jonathan Dowland
On Mon, Nov 14, 2016 at 01:09:51PM -0600, Richard Owlett wrote: > There is light at the end of the tunnel which doesn't appear to be an > oncoming train ;/ > > This is a manually created transcript of what I've done this morning. > I physically can *NOT* do a copy-n-paste of what's happening as it

Progress report Re: Invoking ddrescue

2016-11-14 Thread Richard Owlett
There is light at the end of the tunnel which doesn't appear to be an oncoming train ;/ This is a manually created transcript of what I've done this morning. I physically can *NOT* do a copy-n-paste of what's happening as it is currently in progress on a separate _intentionally isolated_ laptop.

Re: Invoking ddrescue

2016-11-13 Thread Richard Owlett
On 11/13/2016 9:01 AM, Thomas Schmitt wrote: Hi, Richard: You may as well use /media instead of /mnt. I think it makes no decisive difference for your purpose. I'll use /mnt as it is empty and I will thus be able to distinguish between what Debian does and what I'm responsible for. Now to r

Re: Invoking ddrescue

2016-11-13 Thread Thomas Schmitt
Hi, Richard: You may as well use /media instead of /mnt. I think it makes no decisive difference for your purpose. The following discussion wanders away from the request for help into the field of best practices with system administration: I quoted: > > > > http://www.pathname.com/fhs/pub/fhs

Re: Invoking ddrescue

2016-11-13 Thread Brian
On Sat 12 Nov 2016 at 21:05:17 -0600, Richard Owlett wrote: > On my left hand I have a defective hard disk - AKA /dev/sdc . > On my right hand I have a partitioned device waiting for data - AKA > /dev/sdb6 . [...Snip...] > How do I prepare to invoke >ddrescue /dev/sdc /mnt/repaired.img /mnt/

Re: Invoking ddrescue

2016-11-13 Thread Pascal Hambourg
Le 13/11/2016 à 14:35, Thomas Schmitt a écrit : Old school is: http://www.tldp.org/LDP/Linux-Filesystem-Hierarchy/html/mnt.html "This is a generic mount point under which you mount your filesystems or devices. [...] This directory usually contains mount points or sub-directories where

Re: Invoking ddrescue

2016-11-13 Thread Thomas Schmitt
Hi, i wrote: > > Check whether there is really no filesystem on /dev/sdb6 ! Pascal Hambourg wrote: > How ? I may suggest amongst others : file -sk /dev/sdb6 Good proposal. Richard: Add this to mine. An empty partition should report /dev/sdb6: data whereas a recognizable filesystem should

Re: Invoking ddrescue

2016-11-13 Thread Nicolas George
Le tridi 23 brumaire, an CCXXV, Pascal Hambourg a écrit : > >Check whether there is really no filesystem on /dev/sdb6 ! > How ? Try to mount it? It could be dangerous in theory if the device came from a malicious source, but not in this instance. > My understanding of the FHS was that /mnt was in

Re: Invoking ddrescue

2016-11-13 Thread Pascal Hambourg
Le 13/11/2016 à 13:29, Thomas Schmitt a écrit : Check whether there is really no filesystem on /dev/sdb6 ! How ? I may suggest amongst others : file -sk /dev/sdb6 wipefs /dev/sdb6 blkid /dev/sdb6 Only if not, create one by mkfs -t ext3 /dev/sdb6 Why use an obsolete filesystem type as ex

Re: Invoking ddrescue

2016-11-13 Thread Thomas Schmitt
Hi, Richard Owlett wrote: > > > How do I prepare to invoke i wrote: > > ddrescue -p /dev/sdc1 /mnt/my_sdb6/my_sdc1 /mnt/my_sdb6/sdc1_log tomas wrote: > his "big" disk > (where the backup is going to) has already a file system and is mounted. Meanwhile i began to doubt this. (Why would Richard n

Re: Invoking ddrescue

2016-11-13 Thread tomas
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Sun, Nov 13, 2016 at 12:53:20PM +0100, Thomas Schmitt wrote: > Hi, > > Richard Owlett wrote: > > I'm tangled up !! I plead for 5 or 6 lines to copy-n-paste. > > My proposal deviates from some aspects of your original plan. Ah, Thomas, you're the

Re: Invoking ddrescue

2016-11-13 Thread tomas
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Sat, Nov 12, 2016 at 09:05:17PM -0600, Richard Owlett wrote: > On 11/12/2016 2:57 PM, to...@tuxteam.de wrote: > >[*SNIP*] > >Those steps are a rough sketch. Many details already flew back > >and forth in this thread, so I didn't want to bloat the th

Re: Invoking ddrescue

2016-11-13 Thread Thomas Schmitt
Hi, Richard Owlett wrote: > I'm tangled up !! I plead for 5 or 6 lines to copy-n-paste. My proposal deviates from some aspects of your original plan. I would try something like ddrescue -p /dev/sdc1 /mnt/my_sdb6/my_sdc1 /mnt/my_sdb6/sdc1_log Details: /dev/sdc1 is a partition