Bug#432150: [Pkg-cryptsetup-devel] Bug#432150: /sbin/cryptsetup: repair tools needed
On 07/07/2007 [EMAIL PROTECTED] wrote: dm-crypt has data corruption issues, and this includes the luks header. a tool to repair the luks header so that you can run fsck on the fs would be useful. it might be that most of the data are ok. this could take the form of an fsck-like repair, or a similar partition's header to repair the header, or a luksRestore from a backed up luksDump. i'm sure there are issues with each of these, but it seems likely that *something* can be done. there was brief discussion on the dm-crypt mailing list about how to repair luks headers and that might be a place to start. Could you point us to more documentation regarding the data corruption issues? I found your report at the dm-crypt mailing list, but not any suggestions about how to repair headers. Maybe you even have some code to start from. greetings, jonas -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Bug#432150: [Pkg-cryptsetup-devel] Bug#432150: /sbin/cryptsetup: repair tools needed
i wish that i could help more. i do still have the corrupted partition (and the identical working one) and will try suggestions, but will have to overwrite it soon. the dm-crypt discussion was brief and afaik to the effect that the header format is well documented, so if you have a similar header on another partition, you repair the corrupted one by using dd for the homologous parts. e.g. 2007-06-08 07:41:52 GMT on the same url. a web search reveals data corruption stories. one person found that strace enabled opening (didn't work for me). there might be dm issues in addition to dm-crypt or luks issues (brief scan of dm mailing list subjects). i am physically limited in computer use else i would give you urls. thanks. -- Webmaster: do you believe that people will (a) switch browsers to view your best viewed with page or (b) go to your competitor? -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Bug#432150: /sbin/cryptsetup: repair tools needed
Package: cryptsetup Version: 2:1.0.4+svn26-1 Severity: wishlist File: /sbin/cryptsetup dm-crypt has data corruption issues, and this includes the luks header. a tool to repair the luks header so that you can run fsck on the fs would be useful. it might be that most of the data are ok. this could take the form of an fsck-like repair, or a similar partition's header to repair the header, or a luksRestore from a backed up luksDump. i'm sure there are issues with each of these, but it seems likely that *something* can be done. there was brief discussion on the dm-crypt mailing list about how to repair luks headers and that might be a place to start. data corruption reports can be found via google, and on the dm-crypt mailing list. many, including mine, are hard to reproduce. fwiw, here is mine: message 2007-07-01 02:59:28 GMT on http://news.gmane.org/gmane.linux.kernel.device-mapper.dm-crypt . there is a well-known and probably fixed issue with 2.6.18 and raid 5, and there are issues that do not involve that kernel and do not involve raid 5. i suspect that even 2.6.22rc7 is vulnerable. thanks. -- System Information: Debian Release: 4.0 Architecture: i386 (i686) Shell: /bin/sh linked to /bin/bash Kernel: Linux 2.6.18myver-2007-06-q Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968) Versions of packages cryptsetup depends on: ii dmsetup 2:1.02.08-1 The Linux Kernel Device Mapper use ii libc62.3.6.ds1-13GNU C Library: Shared libraries ii libdevma 2:1.02.08-1 The Linux Kernel Device Mapper use ii libgcryp 1.2.3-2 LGPL Crypto library - runtime libr ii libgpg-e 1.4-1 library for common error values an ii libpopt0 1.10-3 lib for parsing cmdline parameters ii libuuid1 1.39+1.40-WIP-2006.11.14+dfsg-2 universally unique id library cryptsetup recommends no packages. -- no debconf information -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
