Re: lost partition table
On Fri, 2006-03-24 at 13:55 +, [EMAIL PROTECTED] wrote: > Hello folks. > > i am using slackware linux(2.6.14 with reiser4 patch) on x86_64 and was > trying to install free_bsd on a separate partition. > well, during that instalation , accedentualy i have pressed a wrong key , so > my partition table is owerriten by something else , but i realized this > streight away and stopped the instalation process . I once did this by running fsck.reiser4 on the whole disk, instead of on the first partition. luckily, I wrote down what was in /proc/partitions, and reconstructed the partition table with help from hexedit to check the exact alignment of the partitions. As for the first partition on the disk, I had let fsck.reiser4 run to completion, fixing thousands of errors, with the various rebuild options turned on. Obviously this had caused a lot of damage to the file system, with it being off-set from the beginning of the disk. Amazingly re-running fsck.reiser4 on the actual partition seemed to do the trick, leaving only a few libraries corrupt. Quick tip: I found that about 0x11044 bytes in from the beginning of a Reiser4 partition, you find the string "ReIsEr40FoRmAt". I am sure other file systems have similar magic strings which can be searched for using hexedit, enabling the partition table to be fixed. -- Craig Shelley EMail: [EMAIL PROTECTED] Jabber: [EMAIL PROTECTED] signature.asc Description: This is a digitally signed message part
Re: lost partition table
On 24-Mar-06, at 8:55 AM, [EMAIL PROTECTED] wrote: Hello folks. i am using slackware linux(2.6.14 with reiser4 patch) on x86_64 and was trying to install free_bsd on a separate partition. well, during that instalation , accedentualy i have pressed a wrong key , so my partition table is owerriten by something else , but i realized this streight away and stopped the instalation process . so in fac rigth now i ve got around 200GiB of data , all mushed up . there were 11 linux partitions without raid. many of thoes were reiserfs and reiser4. I have located Reiser3 partitions after overwriting a partition table. I imagine Reiser4 would be similar. The method I used is described here: http://slashdot.org/~toby/ journal/110587 Once you have starting sector locations, you can write a new partition table. Tedious but it will work. --Toby i have found on some linux distro's mailing list that the boot sector's backup made by the LILO should contain the table . i'm not 100% sure of that , but i believe it must do . so basicaly i have this backup file, but it exists somewhere in betweent all that mess on my drive . now the question is how to recover that file ? obviously i have tried gpart , wich was updated last time back in 1999 , so could find only my swap part'ion :) i also read about magicrescue on this list's archive ..but the file i need seems to be binary and i'm still not sure dies it contain the table or just the LILO code . Can anybody help please , because i think that this 99.(9)% recoveriable ! . thank you anyway.!
Re: lost partition table
Hi On 13:55 Fri 24 Mar , [EMAIL PROTECTED] wrote: > now the question is how to recover that file ? I had a similar problem. For me TestDisk saved the day. It can recover most, if not all, partitions even without the partition table: http://www.cgsecurity.org/wiki/TestDisk Last update was March 2nd. Really a great tool. Hope this helps -Andreas ps: anyway, you do have a backup, don't you? If not, none of the data is vital, right?
Re: lost partition table
Hello On Fri, 2006-03-24 at 13:55 +, [EMAIL PROTECTED] wrote: > Hello folks. > > i am using slackware linux(2.6.14 with reiser4 patch) on x86_64 and was > trying to install free_bsd on a separate partition. > well, during that instalation , accedentualy i have pressed a wrong key , so > my partition table is owerriten by something else , but i realized this > streight away and stopped the instalation process . > > so in fac rigth now i ve got around 200GiB of data , all mushed up . there > were 11 linux partitions without raid. > many of thoes were reiserfs and reiser4. > > i have found on some linux distro's mailing list that the boot sector's > backup made by the LILO should contain the table . i'm not 100% sure of that > , but i believe it must do . > > so basicaly i have this backup file, but it exists somewhere in betweent all > that mess on my drive . > > now the question is how to recover that file ? > > obviously i have tried gpart , wich was updated last time back in 1999 , so > could find only my swap part'ion :) > You might want to try newer gpart > i also read about magicrescue on this list's archive ..but the file i need > seems to be binary and i'm still not sure dies it contain the table or just > the LILO code . > > Can anybody help please , because i think that this 99.(9)% recoveriable ! > . > thank you anyway.! > >
Re: lost partition table
On Friday 24 March 2006 14:55, [EMAIL PROTECTED] wrote: > Hello folks. > > obviously i have tried gpart , wich was updated last time back in 1999 , so > could find only my swap part'ion :) Actually, the homepage says it is updated in 2001, and that it should support Reiser. Not sure how much that helps, but it should be better than starting from scratch :-) Perhaps someone can patch gpart to find reiser4 partitions? -- Regards, Christian Iversen
