Re: [gentoo-user] Is my data gone?
On Thu, 29 Apr 2010 18:43:41 -0400, dhk wrote: While setting up a new disk I accidentally ran mke2fs /dev/sda1 instead of mke2fs /dev/hda1. When I realized the mistake (about 2 seconds later) I hit Ctrl-C before mke2fs was done. Now I can't mount the drive. Is there a way to read the drive to get the data off or is it unrecoverable? The data is still there, mke2fs just reset the superblock. Photorec will recover file contents from a filesystem like this. It only recovers the contents, not the metadata, so you'll end up with files with meaningless names, but as they are video files I suspect there are not too many of them and they are fairly easy to identify. At least it's less work than importing and editing them all again. -- Neil Bothwick I am in total control, but don't tell my wife. signature.asc Description: PGP signature
Re: [gentoo-user] Is my data gone?
Am 30.04.2010 10:44, schrieb Neil Bothwick: On Thu, 29 Apr 2010 18:43:41 -0400, dhk wrote: While setting up a new disk I accidentally ran mke2fs /dev/sda1 instead of mke2fs /dev/hda1. When I realized the mistake (about 2 seconds later) I hit Ctrl-C before mke2fs was done. Now I can't mount the drive. Is there a way to read the drive to get the data off or is it unrecoverable? The data is still there, mke2fs just reset the superblock. Photorec will recover file contents from a filesystem like this. It only recovers the contents, not the metadata, so you'll end up with files with meaningless names, but as they are video files I suspect there are not too many of them and they are fairly easy to identify. At least it's less work than importing and editing them all again. It will also find files you already deleted. I had this with an SD Card once and it is a lot of work to go throu all the files and see what it is. kh
Re: [gentoo-user] Is my data gone?
On 29 Apr 2010, at 23:53, Alan McKinnon wrote: On Friday 30 April 2010 00:43:41 dhk wrote: While setting up a new disk I accidentally ran mke2fs /dev/sda1 instead of mke2fs /dev/hda1. When I realized the mistake (about 2 seconds later) I hit Ctrl-C before mke2fs was done. Now I can't mount the drive. Is there a way to read the drive to get the data off or is it unrecoverable? For all practical intents and purposes, and for all reasonable values of effectively, your data is effectively gone. Money, lots of money, could tip the sales in your favour. What? What? Photorec will recover the data. Stroller.
Re: [gentoo-user] Is my data gone?
On Fri, 30 Apr 2010 11:14:45 +0200, KH wrote: The data is still there, mke2fs just reset the superblock. Photorec will recover file contents from a filesystem like this. It only recovers the contents, not the metadata, so you'll end up with files with meaningless names, but as they are video files I suspect there are not too many of them and they are fairly easy to identify. At least it's less work than importing and editing them all again. It will also find files you already deleted. I had this with an SD Card once and it is a lot of work to go throu all the files and see what it is. Of course it will, since that is what it does, find deleted files. Whether their directory entries were deleted with rm or mke2fs is irrelevant because photorec looks for chains of blocks on the disk. -- Neil Bothwick One of the nice things about standards is that there are so many of them. signature.asc Description: PGP signature
Re: [gentoo-user] Is my data gone?
On Friday 30 April 2010 09:44:01 Neil Bothwick wrote: The data is still there, mke2fs just reset the superblock. Photorec will recover file contents from a filesystem like this. It only recovers the contents, not the metadata, so you'll end up with files with meaningless names, but as they are video files I suspect there are not too many of them and they are fairly easy to identify. At least it's less work than importing and editing them all again. There's also a program that will attempt to link together the various files that belong to each image (I assume video works in a similar way), which greatly lessens the work I don't remember its name at the moment, but Google ought to be able to find it. -- Rgds Peter.
Re: [gentoo-user] Is my data gone?
Stroller wrote: On 29 Apr 2010, at 23:53, Alan McKinnon wrote: On Friday 30 April 2010 00:43:41 dhk wrote: While setting up a new disk I accidentally ran mke2fs /dev/sda1 instead of mke2fs /dev/hda1. When I realized the mistake (about 2 seconds later) I hit Ctrl-C before mke2fs was done. Now I can't mount the drive. Is there a way to read the drive to get the data off or is it unrecoverable? For all practical intents and purposes, and for all reasonable values of effectively, your data is effectively gone. Money, lots of money, could tip the sales in your favour. What? What? Photorec will recover the data. Stroller. side note... i think we all have done this at some point... F :P
Re: [gentoo-user] Is my data gone?
On Friday 30 April 2010 00:43:41 dhk wrote: While setting up a new disk I accidentally ran mke2fs /dev/sda1 instead of mke2fs /dev/hda1. When I realized the mistake (about 2 seconds later) I hit Ctrl-C before mke2fs was done. Now I can't mount the drive. Is there a way to read the drive to get the data off or is it unrecoverable? For all practical intents and purposes, and for all reasonable values of effectively, your data is effectively gone. Money, lots of money, could tip the sales in your favour. This is why you made backups. You did make backups, right? -- alan dot mckinnon at gmail dot com
Re: [gentoo-user] Is my data gone?
On 04/29/2010 06:53 PM, Alan McKinnon wrote: On Friday 30 April 2010 00:43:41 dhk wrote: While setting up a new disk I accidentally ran mke2fs /dev/sda1 instead of mke2fs /dev/hda1. When I realized the mistake (about 2 seconds later) I hit Ctrl-C before mke2fs was done. Now I can't mount the drive. Is there a way to read the drive to get the data off or is it unrecoverable? For all practical intents and purposes, and for all reasonable values of effectively, your data is effectively gone. Money, lots of money, could tip the sales in your favour. This is why you made backups. You did make backups, right? The disk was for video so I do have the tapes around, but I lost my current edits. Finished products were burned to disk. Most of the data was stuff I finished and was trying to decide what to do with, guess that decision's been made. Hopefully I'll never have to recreate them. Anyway to pick up the disk from the middle? I really don't want to go through the tapes and download them again. Thanks, dhk
Re: [gentoo-user] Is my data gone?
On Thu, Apr 29, 2010 at 5:43 PM, dhk dhk...@optonline.net wrote: While setting up a new disk I accidentally ran mke2fs /dev/sda1 instead of mke2fs /dev/hda1. When I realized the mistake (about 2 seconds later) I hit Ctrl-C before mke2fs was done. Now I can't mount the drive. Is there a way to read the drive to get the data off or is it unrecoverable? Before attempting anything I would clone the drive to a spare and then attempt recovery on the clone. (because sometimes trying to fix it can just make things worse). You can try something like testdisk, and of course try fsck first. Or one of many commercial programs such as those listed here which probably do the same thing as testdisk: http://unformat-ext2.qarchive.org/ There's no simple unformat command or anything that I know of, though. Sorry :(
