On Friday 13 February 2009 15:25:08 Leslie Katz wrote: > Thanks for replying so quickly, Jake. > > After posting, I kept looking. I found a document on the web called > "Accessing a Fedora Logical Volume from Ubuntu". > > You were right about the need to install software. I did. > > The document next told me to load the dm-mod module. I did. > > It next told me to run vgscan. I did. > > I was told that all physical volumes for the volume group VolGroup00 > couldn't be found. That confirms your point about needing both disks > connected. > > I think I might get a second gadget and see what happens when both > physical volumes comprising the logical volume group are connected. > > I think that's my best shot, because I haven't got a clue about how I > might get the CPU fan on computer A going again. If I knew that, I would > also have known enough not to accept the default installation in Fedora > 9, in so far as it used LVM!! > > Thanks again, > > Leslie > > Jake Anderson wrote: > > Leslie Katz wrote: > >> Computer A, an old computer, was running Fedora 9. It had two hard > >> drives. Unawares, when I installed Fedora 9, I set things up using > >> Logical Volume Management. > >> > >> Computer A will no longer boot up. I suspect it has something to do > >> with the fact that the fan over the CPU doesn't run. > >> > >> I got computer B, another old computer, going, running Ubuntu 8.10. > >> It has a single hard drive and no facility to add a second. > >> > >> I hoped to be able to get data off the two old hard drives, in > >> particular, photographs. I got a gadget that allowed me to plug an > >> IDE drive into a USB port. I removed one of the old drives from > >> computer A and attached it to computer B via the gadget. > >> > >> When I run fdisk -l on computer B, I'm told that the attached drive > >> is sdb1. > >> > >> However, I can't mount sdb1. When I try, I get the message "unknown > >> filesystem type 'LVM2_member'". > >> > >> Does that mean that there's no way for me to get the data from > >> computer A's drives to computer B? > >> > >> Thanks for reading this. > >> > >> Leslie > > > > You need to install the stuff to handle LVM in ubuntu, as i recall it > > doesn't come with it by default. > > if you spanned the LVM over both disks you will probably need to have > > both of them connected to use the volume effectively. > > > > If you can get the fan spinning again it'd probably be enough to get > > the other one to boot. > > -- > To see papers I've written on, among other things, literary allusions in > Australian reasons for judgment, start here: http://ssrn.com/author=1164057 > > To see photos I've taken of, among other things, Sydney, then and now, > start here: > http://www.flickr.com/photos/23623...@n03/sets/72157604225021655/ > --
You might like to try a live distro, such as PCLINUXOS, with which I have no problems mounting "foreign" drives. Basically, the live distro runs from the CD and you muck around with mount arguments (someone else may have a more structured approach here) until it can read the drives. Once you have that its pretty easy to copy precious stuff to a USB drive or etc. I have used this several times to do exactly that. It seems that the live distros are better placed to do this than installed systems. hth bruce -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
