Very Computer

by **My De** » Fri, 06 Jun 2003 08:46:25

I have 2 drives in a system and I backup the first on IDE1 to the
second on IDE2 using Ghost, which I switch off after the backup is
complete.

If I need to switch to the second one in the case where the first one
fails will Linux work normally ie will all the drives be mounted
properly, or will I have to plug it the 2nd one into IDE1 for the
drives to be mounted properly?

by **Clive Dov** » Fri, 06 Jun 2003 09:02:50

> I have 2 drives in a system and I backup the first on IDE1 to the
> second on IDE2 using Ghost, which I switch off after the backup is
> complete.

> If I need to switch to the second one in the case where the first one
> fails will Linux work normally ie will all the drives be mounted
> properly, or will I have to plug it the 2nd one into IDE1 for the
> drives to be mounted properly?

Whatever is in the MBR will have to be able to find the standby system
and the standby system has to be capable of accepting a jump from the
mbr.
You might try setting it up such that the standby system would have its
lilo installed in its boot partition (/boot or / depending on the
setup) instead of the mbr and the lilo installed in the mbr should then
have an "other" stanza with an appropriate label pointing to the boot
partition.

by **Keith Robert** » Fri, 06 Jun 2003 10:09:50

Also if you try to boot the backup drive in the machine on ide2 all the
details the system needs of where to mount pations will be wrong. You will
need to edit the fstab if it is to boot properly. ie not /dev/hda1 etc but
/dev/hdc1.

You might find that lilo wont work properly if you put the drive as ide1 if
it is not exactly the same model/make/size - if so you might have to boot it
with a recovery disk or instalation cd options, mount the filesystem and run
lilo to install it to the mbr.

It should work. It should teach you a lot about how Linux boots the system.
Usefull in the future when things go wrong.

Had to do similar after loading M$ Windoze and couldnt boot Linux anymore.
M$ dosent want other OS on system.

Good luck.

>> I have 2 drives in a system and I backup the first on IDE1 to the
>> second on IDE2 using Ghost, which I switch off after the backup is
>> complete.

>> If I need to switch to the second one in the case where the first one
>> fails will Linux work normally ie will all the drives be mounted
>> properly, or will I have to plug it the 2nd one into IDE1 for the
>> drives to be mounted properly?

> Whatever is in the MBR will have to be able to find the standby system
> and the standby system has to be capable of accepting a jump from the
> mbr.
> You might try setting it up such that the standby system would have
> its lilo installed in its boot partition (/boot or / depending on the
> setup) instead of the mbr and the lilo installed in the mbr should
> then have an "other" stanza with an appropriate label pointing to the
> boot partition.

Very Computer

What happens to Linux when duplicated drive is on IDE2?

What happens to Linux when duplicated drive is on IDE2?

What happens to Linux when duplicated drive is on IDE2?

What happens to Linux when duplicated drive is on IDE2?