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Revision as of 11:25, 9 November 2013
, 11:25, 9 November 2013→Recovering SME Server with lvm drives
==Recovering SME Server with lvm drives==
==Recovering SME Server with lvm drives==
The purpose of this howto is to give to you the abilities to access to your data if the SME Server 8 is broken and can't start in a normal way.
you have several methods below, but all are done on a default Raid over LVM, therefore you might need to adapt to your configuration, if necessary.
==Method A with SystemRescueCd==
If your issue concerns a grub issue, you should look to this [[Grub|wiki page]]
===Method with the official SME Server CDROM ===
I presume that your SME Server is on a RAID over LVM, otherwise you will have to adapt this HOWTO.
* start the system with your official SME Server CDROM
* give at prompt : '''linux rescue'''
* set your language and your keyboard
* set to '''no''' the start of network interfaces
* set to '''continue''' the question about how the system is mounted in /mnt/sysimage
* set to '''ok'''
* give at prompt :
chroot /mnt/sysimage
su -
Now you have successfully mounted your LVM and you are able to read your data in a chroot environment, you can save them on a usb disk
* to exit
exit
exit
halt
===Method with SystemRescueCd===
{{note box| We go to work with [http://www.sysresccd.org/SystemRescueCd_Homepage SystemRescueCd] which is a Linux system rescue disk available as a bootable CD-ROM or USB stick for administrating or repairing your system and data after a crash.[http://www.sysresccd.org/Download Download]. The goal is to get mounted your logical volumes on /mnt where you can save them on a usb disk.}}
{{note box| We go to work with [http://www.sysresccd.org/SystemRescueCd_Homepage SystemRescueCd] which is a Linux system rescue disk available as a bootable CD-ROM or USB stick for administrating or repairing your system and data after a crash.[http://www.sysresccd.org/Download Download]. The goal is to get mounted your logical volumes on /mnt where you can save them on a usb disk.}}
lvdisplay
lvdisplay
Now you have successfully mounted your LVM and able to read your data on /mnt/recover, you can save them on a usb disk with the file browser for example.
Now you have successfully mounted your LVM and you are able to read your data on /mnt/recover, you can save them on a usb disk with the file browser for example.
==Method B==
===Method ===
Let’s try starting the raid and see what we get:
Let’s try starting the raid and see what we get:
user@user-desktop:~$
user@user-desktop:~$
==Method C with a ubuntu Cdrom==
===Method with a ubuntu Cdrom===
based on http://www.linuxjournal.com/article/8874?page=0,0
based on http://www.linuxjournal.com/article/8874?page=0,0
