To | Debian CZ/SK project discussion list <czdebian-l zavinac debian bod cz> |
From | Jan Korbel <debian zavinac teptin bod net> |
Date | Fri, 23 Feb 2007 14:39:49 +0100 |
User-agent | Icedove 1.5.0.9 (X11/20061220) |
Btw tar taky nema rad, kdyz mu pred nosem treba umazete soubor. H. -cut- Historically, dump was *always* used on unmounted filesystems. Tools likeAMANDA break that expectation. Backing up a live filesystem sometimes causesproblems for tools like dump, depending on what is changing while the backup runs. If you see errors during a dump of a mounted filesystem, try again with
the filesystem unmounted, and see if that fixes the problem. In theory, the page cache changes in the 2.4 Linux kernel can cause problems to happen more frequently than in prior versions. Caveat emptor. -cut- a jeste: -cut- 9) Experiencing bread, lseek, and lseek2 errors. These errors are caused by inodes being changed during the backup. This is normal because dump and the Linux kernel are both acessing the filesystem and there is no consistence checking. By "calming" the system (killing unnecessary processes), you decrease the likelihood of having these errors. Read up on the bug on Sourcefourge: http://sourceforge.net/tracker/index.php?func=detail&aid=204909&group_id=1306&atid=101306 Note that the only "real" solution to this problem is to dump a unmounted filesystem or use a filesystem snapshot feature (like in LVM). -cut- Ani jednu z techto chyb jsem nikdy nevidel. Joachim Gottschalk wrote:
Na wikipedii pisou, ze: A dump of the ext3 filesystem taken while it is mounted read-write may result in corrupt data within the dump file. On 2/23/07, Ivan Hoe <markiza zavinac gmail bod com> wrote:A ako sa sprava dump v zivom systeme, ktory nemoze ist do jednouzivatelskeho modu, da sa takyto system nejako seriozne online zalohovat? Ja to robim rsyncom, ale z kopie nenabootujem(grub (ok) ael kernel zblbne), je to viac menej zaloha inych veci okrem systemu. Da sa teda i taketo nieco ruesit ? JJ Dňa Fri, 23 Feb 2007 13:23:18 +0100 Jan Korbel <debian zavinac teptin bod net> napísal:Ano. Pri restoru se da "rozbalit" kompletni dump (-rf) do aktualniho adresare nebo interaktivne prochazet obsahem (-i), vybirat soubory a adresare a pak je obnovit. Dump/restore byva celkem standardni soucasti systemu. H. Joachim Gottschalk wrote:takze tedy kdyz budu mit zalohu vytvorenou pomoci dump 0 a kdybych pak prisel o systemovy disk, jak potom probiha obnova? Vymenim poskozeny disk za novy, nabootuju nejake zachrane CD, spustim restore a obnovim system na novy disk? Pujde to takhle? diky________________________________________________ CZdebian-l maillist - CZdebian-l zavinac debian bod cz http://www.debian.cz/mailman/listinfo/czdebian-l E-mail (un)subscriptions: czdebian-l-request zavinac debian bod cz________________________________________________ CZdebian-l maillist - CZdebian-l zavinac debian bod cz http://www.debian.cz/mailman/listinfo/czdebian-l E-mail (un)subscriptions: czdebian-l-request zavinac debian bod cz________________________________________________ CZdebian-l maillist - CZdebian-l zavinac debian bod cz http://www.debian.cz/mailman/listinfo/czdebian-l E-mail (un)subscriptions: czdebian-l-request zavinac debian bod cz