re: HELP!! Slice info disappeared
Hello Niall and Josef, Thanks for your great help. Finally I get all data on the disk back after the struggle on the weekend :) I run the program you sent me, but I got nothing from it. I guess the reason as follows: (1) The program fetches each chunks of 16 blocks from the disk and check if they are superblocks. (2) My disk is sliced into 3 parts. The fist one is for MS-DOS (FAT format), and the rest of them are FFS. It's highly possible that the offset block of the beginning of FFS slice is not a multiple of 16. (3) So I did: # for i in 0 1 2 3 ... 15; do # ./findsb /dev/wd2 $[ (estimated end of block for FAT slice)*512 + $i*512 ] # done After I got the info from the superblocks, getting back data was easy. Again, thanks much for your great help. You saved a lot of my time to reconstruct the data from scratch. Sincerely yours, -- Kazukiyo Ueda From: Josef Karthauser [EMAIL PROTECTED] Subject: re: HELP!! Slice info disappeared Date: Fri, 9 Jul 1999 10:01:16 +0100 Hi Kazukiyo, This is certainly possible. I've enclosed a hack from Niall Smart that should generated enough information to for you to reconstruct it. I'm working on a general solution to this for inclusion FreeBSD as shipped, but it's at home and I'm at work, that said it's Niall's basic code saved my harddisk a few weeks ago :) Joe To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-hackers" in the body of the message
re: HELP!! Slice info disappeared
Hello Niall and Josef, Thanks for your great help. Finally I get all data on the disk back after the struggle on the weekend :) I run the program you sent me, but I got nothing from it. I guess the reason as follows: (1) The program fetches each chunks of 16 blocks from the disk and check if they are superblocks. (2) My disk is sliced into 3 parts. The fist one is for MS-DOS (FAT format), and the rest of them are FFS. It's highly possible that the offset block of the beginning of FFS slice is not a multiple of 16. (3) So I did: # for i in 0 1 2 3 ... 15; do # ./findsb /dev/wd2 $[ (estimated end of block for FAT slice)*512 + $i*512 ] # done After I got the info from the superblocks, getting back data was easy. Again, thanks much for your great help. You saved a lot of my time to reconstruct the data from scratch. Sincerely yours, -- Kazukiyo Ueda From: Josef Karthauser j...@pavilion.net Subject: re: HELP!! Slice info disappeared Date: Fri, 9 Jul 1999 10:01:16 +0100 Hi Kazukiyo, This is certainly possible. I've enclosed a hack from Niall Smart that should generated enough information to for you to reconstruct it. I'm working on a general solution to this for inclusion FreeBSD as shipped, but it's at home and I'm at work, that said it's Niall's basic code saved my harddisk a few weeks ago :) Joe To Unsubscribe: send mail to majord...@freebsd.org with unsubscribe freebsd-hackers in the body of the message
HELP!! Slice info disappeared
Hi hackers, I need your helps, please. I have two IDE drives. They have two slices for FreeBSD and Windows on each. Last night I tried to install Windows 95 on the first IDE drive where FreeBSD 3.1.0-Stable has installed. I executed fdisk program on MS-DOS and created an active slice to make it C: on the first drive. I successfully installed windows, and then rebooted FreeBSD. It's the beginning of my nightmare. On the boot time, kernel said there were no disklabel on the second IDE drive or something like that (sorry, I was so in panic that I didn't write them down on paper), and the system fall into single user mode. I checked the information for slices written on the second IDE, but it was almost the same as the first one. That is, each slices on second IDE have the same size on the first one. I didn't know what happened but I guess fdisk program changed the slice info not only for first IDE, but also the second one. I suppose (or wish) that the only slice information on the second IDE was overwritten, and the data on the second IDE are still there without any changes. Is there any way to retrieve the slice info? Any help is much appreciated. Thanks in advance, -- Kazukiyo UEDA To Unsubscribe: send mail to majord...@freebsd.org with unsubscribe freebsd-hackers in the body of the message
