----- Original Message ----- From: "Paul Lussier" <[EMAIL PROTECTED]> To: "Kyle Masters" <[EMAIL PROTECTED]> Cc: <[EMAIL PROTECTED]> Sent: Monday, October 08, 2001 10:53 AM Subject: Re: Re(1): clone a raid array
> In a message dated: Mon, 08 Oct 2001 01:28:03 EDT > "Kyle Masters" said: > > >Would dd do the trick of piling all of a single-drive's data onto a 3-disk > >array and have the ability to boot from it? > > It would definitely work, the only problem is tht using dd also > copies your partition map information. If your 2 drives are not > equal, or close to equal in size, then you'll have problems. > It doesn't have to...if you dd the whole disk, yes it will copy the partition tables. If you dd each partition individually, it will only copy the contents of each partition. This is faster because you don't have to copy swap partitions and such. Of course if you dd each partition individually, you have to make sure that the target disk is partitioned first, and that the target partition is at least as big as the source. Since most people (I hope) are moving from a small drive to a larger one, this shouldn't be a problem. :o) So in this case, I would create the raid array, partition it, and then dd the old partition contents to the new array. Oh, when you dd partitions, not only does the target have to be equal or greater than the source, but the file system IDs have to match (eg., 82 for Linux native, 83 for Linux swap, etc.) Rich Cloutier President, C*O SYSTEM SUPPORT SERVICES www.sysupport.com ********************************************************** To unsubscribe from this list, send mail to [EMAIL PROTECTED] with the following text in the *body* (*not* the subject line) of the letter: unsubscribe gnhlug **********************************************************
