building if the machine crashes

brian_31 — Sun, 31 Dec 2006 10:08:40 GMT

i wanted to know the options available in case if the machine crashes and not recoverable..since we have two platforms (one HP-UX and other Linux) and since we are new to Linux, I have this concern.HP-UX, we take the ignite so works like a charm. what shd i do for linux in that situation? here is a listing from the /boot and /root. this linux box runs redhat AS 3.

#cd /boot
# ll
total 10887
lrwxrwxrwx 1 root root 30 Nov 15 00:30 System.map -> System.map-2.4.21-47.0.1.ELsmp
-rw-r--r-- 1 root root 580154 Oct 13 15:12 System.map-2.4.21-47.0.1.EL
-rw-r--r-- 1 root root 607622 Oct 13 15:04 System.map-2.4.21-47.0.1.ELsmp
-rw-r--r-- 1 root root 48951 Oct 13 15:12 config-2.4.21-47.0.1.EL
-rw-r--r-- 1 root root 49066 Oct 13 15:04 config-2.4.21-47.0.1.ELsmp
drwxr-xr-x 2 root root 1024 Nov 15 00:25 grub
-rw-r--r-- 1 root root 317967 Nov 15 00:22 initrd-2.4.21-47.0.1.EL.img
-rw-r--r-- 1 root root 327354 Nov 15 00:22 initrd-2.4.21-47.0.1.ELsmp.img
-rw-r--r-- 1 root root 547 Oct 27 19:02 kernel.h
drwx------ 2 root root 12288 Oct 27 18:51 lost+found
-rw-r--r-- 1 root root 23108 Sep 11 2003 message
-rw-r--r-- 1 root root 21282 Sep 11 2003 message.ja
-rwxr-xr-x 1 root root 2912724 Oct 13 15:12 vmlinux-2.4.21-47.0.1.EL
-rwxr-xr-x 1 root root 3551892 Oct 13 15:04 vmlinux-2.4.21-47.0.1.ELsmp
-rw-r--r-- 1 root root 1260061 Oct 13 15:12 vmlinuz-2.4.21-47.0.1.EL
-rw-r--r-- 1 root root 1368127 Oct 13 15:04 vmlinuz-2.4.21-47.0.1.ELsmp
[/boot] 06:59:55
# cd /root
[~] 07:00:09
# ll
total 64
-rw-r--r-- 1 root root 2284 Oct 27 18:58 anaconda-ks.cfg
-rw-r--r-- 1 fchodack ibmaod 1259 Dec 17 12:53 csdpWasKeyFile.jks
-rwxrwxrwx 1 root root 0 Dec 18 12:47 exportLTPAkey.0
-rw-r--r-- 1 root root 31725 Oct 27 18:58 install.log
-rw-r--r-- 1 root root 5230 Oct 27 18:58 install.log.syslog
-rw-r--r-- 1 root root 2352 Oct 27 18:59 kickstart.log
-rwxrwxrwx 1 root root 960 Dec 18 12:46 ltpa.key
-rwxr-xr-x 1 root root 960 Dec 18 14:20 ltpakey.txt
-rw-r--r-- 1 root root 2804 Nov 29 11:05 vpd.properties
[~] 07:00:11
#

Happy new year!!!! and thanks in advance

Best Regards

brian

Re: building if the machine crashes

Ivan Krastev — Sun, 31 Dec 2006 11:25:54 GMT

Hi brian,

one of the ways is with backup - after crash install base OS with same partitions and mount points and after that restore complete OS from backup. I use that many times and make full recover for about 20-25 min. Another way is with clonning disk images - http://sourceforge.net/projects/g4l

regards,
ivan

Re: building if the machine crashes

Emil Velez — Sun, 31 Dec 2006 21:51:55 GMT

Using kickstart and RPM you can create a floppy or DHCP server that can boot a system and install a standard image on a linux box. This provides a standard OS image in a very short time and then ftp, nfs or data protector can be used to restore application data.

Emil

Re: building if the machine crashes

Vitaly Karasik_1 — Mon, 01 Jan 2007 01:35:11 GMT

If you have many custom applications/configuration using full disk image will be preferable, IMHO.

You can use Norton Ghost or Mondo/Mindi rescue (http://www.mondorescue.org/), for example.

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building if the machine crashes

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