Jim Cornette ha scritto/wrote il giorno/on 20/03/2005 11:13:
Antonio Montagnani wrote:
I installed FC3 (fresh install) on external USB hard disk (see different post) , now i moved the HD to another Fedora machine (that is un upgrade from FC2)
USB hard disk is immediately connected to the system but I see only a /boot(2) partition.
I suppose that other directories are LVM type.-How can I see other partitions??
Using Felipe's directions from an earlier discussion, I had to do this myself. The labels were the same, so /dev/mapper did not recognize them on startup.
Here is what I did to see the lvm volume from the other disk.
Directions from Felipe: (This works with secondary drive mounts also)
Once booted into text-mode rescue, invoke the following commands:
lvm lvscan lvm vgchange -ay
This will scan for all LVM volumes and then will make them active and accessible.
lvm vgchange -an
will deactivate them all.
Additional steps that I had to do; Perform the step above to activate the lvm.
Make a mounting point directory, such as /mnt/logvol mkdir /mnt/logvol
mount the volume with your resulting device name, for me it was mount /dev/VolGroup00/LogVol00 /mnt/logvol
Change to the /mnt/logvol directory and you should see the content of the disk there.
When done with disk, change to a different directory to allow the drive to be unmounted, then:
umount /dev/VolGroup00/LogVol00 /mnt/volg
If you have other volumes with similar names, I don't think this would work.
On my new system, I changed to using conventional partitioning. There were no duplicate lvms to deal with.
This disk was a laptop disk mounted in a USB to IDE bookdrive device. I was able to transfer desired information from the drive mounted above using this method. If you have lvm on the new installation also, you might need to use lvm help for other options.
lvm help
should list the other options.
Jim
Tnx Jim
As now it is too late to start this task, let me resume what I am aiming to and what is my experience...
1) I am trying to set up a Fedora on an external USB hard disk
2) I do want that the system will start Fedora immediately if the external disk is connected (otherwise Windows should run)
During installation I decided not to install Grub as my goal is to have a system booting Linux when the external HD i sconnected otherwise Windows must be started. No choices to the user....and I want to be connect to any system (mainly laptops) and use Linux
Therefore I installed Fedora on this HD issuing the command: Linux expert noacpi
When I rebooted the system, of course it didn't boot (USB booting is available).
I tried to follow instructions at www.simonf.com/usb but I got lost.
When I issued the command
mkinitrd --preload=ehci-hcd --preload=usb-storage --preload=scsi_mod --preload=sd_mod /boot/usbinitrd.img 2.6.9-1.667
But the system didn't boot !!!
So I decided to check what was in the /boot directory and I didn't find the usbinitrd.img file.
I suppose that I will have to issue the modified command mkinitrd.
At this point I realized that I couldn't see other directories..
What is your suggestion?? to play a fresh installation with standard partitions (how do you manage them???) or making them active following your instructions?
Tnx
--
Antonio M.
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