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Accessing partitions in F21(32 bit) from F20(64 bit)

asked 2015-01-31 09:46:15 -0600

Burton gravatar image

updated 2015-02-21 02:31:43 -0600

Thanks for the enlightenment, so I rephrased my original question (given below for reference). My main problem is that I am using an old laptop, and thought that by replacing the hard-disk with an SSD I can give it a new life. So:

  • I installed F21(32 bit) on the SSD
  • I had installed F20(64 bit) in the old hard disk
  • I am now booted using the old hard disk
  • I want to access and copy some docs in the SSD to my old hard disk

As you see, I just reversed my decision to upgrade my laptop and want some files back. Now the problem is that when I connect the SSD via the USB port (using an adapter) I see only 524MB of files instead of the full 120GB. It only shows the boot files, and not the /home folder which I want.

"I had just installed the 32 bit version of F21 in my Lenovo laptop, after replacing the old hard disk which had 64 bit F20. I now want to copy the documents in the old hard disk to my laptop, but the file manager does not see the files in the 64 bit partitions. My question is, is there any package I can install to read the 64 bit partition, or do I have to reinstall the old hard disk in the laptop then boot into F20 and then copy the files to the 32 bit partition?"

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You have to boot from F20_64 bit (old hard disk) to view/copy data into a new machine. If your laptops processor is a 64 bit one, why don't you install a 64 bit F21 in the new hard disk?

anishjp gravatar imageanishjp ( 2015-01-31 14:43:46 -0600 )edit

@anishjp - that's wrong. Like @alex-sommerfeldt said, there are no 64 bit partitions.

FranciscoD_ gravatar imageFranciscoD_ ( 2015-02-03 06:05:30 -0600 )edit

@FranciscoD_: I know that there are no 64 bit partitions. I didn't say anything about 64 bit partitions in my reply.

anishjp gravatar imageanishjp ( 2015-02-03 08:42:41 -0600 )edit

What I meant was that there was no need to use a 64bit OS either, or an older OS. The files should be accessible from any OS that supports the partition file system type.

FranciscoD_ gravatar imageFranciscoD_ ( 2015-02-03 09:57:08 -0600 )edit

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answered 2015-02-23 02:19:50 -0600

dhardy gravatar image

That should be easy enough; I don't think Fedora 21 supports any new file systems. The 32-bit/64-bit thing is completely irrelevant (excepting possibly that BTRFS works better on 64-bit).

First a question: where are the block devices for your partitions? Run gparted or "KDE partition manager". Either the partitions will be in /dev/sd* or there will be one or more layers of virtual devices. Fedora often sets up LVM or you may have an encryption layer, in which you need to mount them.

Once that's done, you may be able to mount directly from whatever file browser you use or you can do it manually (as root): cd /mnt && mkdir mydata && mount -tauto /dev/MYDEVICE mydata

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I ran the command cd /mnt && mkdir mydata && mount -tauto /dev/sdb2 mydata and got the error mount: unknown filesystem type 'LVM2_member'

Burton gravatar imageBurton ( 2015-03-07 08:11:35 -0600 )edit

The output of fdisk -l is

`Disk /dev/sda: 111.8 GiB, 120034123776 bytes, 234441648 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: dos Disk identifier: 0x000d4a26

Device Boot Start End Blocks Id System /dev/sda1 * 2048 1026047 512000 83 Linux /dev/sda2 1026048 234440703 116707328 8e Linux LVM

Disk /dev/mapper/fedora-root: 50 GiB, 53687091200 bytes, 104857600 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/mapper/fedora-swap: 2 GiB, 2164260864 bytes, 4227072 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/mapper/fedora-home: 59.3 GiB, 63652757504 bytes, 124321792 sectors Units: sectors of ...(more)

Burton gravatar imageBurton ( 2015-03-07 10:21:44 -0600 )edit

I think this is a problem of mounting LVM partitions. Is the following problem connected? How to mount LVM partitions

Burton gravatar imageBurton ( 2015-03-07 11:52:00 -0600 )edit

answered 2015-03-07 11:47:56 -0600

Burton gravatar image

I think this is a problem relating to mounting LVM partitions. Am I correct? Please see the following thread:

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Asked: 2015-01-31 09:46:15 -0600

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Last updated: Mar 07 '15