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Re: /home directary data loss



Craig White wrote:
On Mon, 2009-01-12 at 12:35 +0800, 王召峰 wrote:
Date: Sat, 10 Jan 2009 22:09:56 -0700
From: Craig White <craigwhite azapple com>
Subject: Re: /home directary data loss
To: "Community assistance, encouragement,	and advice for using
	Fedora." <fedora-list redhat com>
Message-ID: <1231650596 4520 650 camel lin-workstation azapple com>
Content-Type: text/plain; charset="UTF-8"

On Sun, 2009-01-11 at 12:41 +0800, 王�峰 wrote:
Help!
I used "yum update" updated my system the other day, then I
 restarted
the computer, but it couldn't get in!
So I used the DVD containing Fedora ISO to rescue the system, but I
still saw nothing in /home/houghes which stores all my important
files! But then my first aim was to get the system up, and I used the DVD and
chose "update existing sytem" hoping to get back to the point where I
hadn't updated Fedora using "yum update". Though this is not the
result, I got it!
But I still couldn't see anything in /home/houghes !
And since the system start-up process is so different from before, I
covered /boot/grub/grub.conf with /boot/grub/grub.conf~ , and the
start-up is normal now!
But how Can I Get My /home/houghes data back?! Help!
----
Is it possible that /home was on a separate partition and isn't mounted?

what do you get when run
 the following commands?
fdisk -l /dev/sda
mount

Craig


following is got by running fdisk -l /dev/sda and mount:
[root joggerwang ~]# fdisk -l /dev/sda

Disk /dev/sda: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x662db0cb

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          25      200781   83  Linux
/dev/sda2              26        8948    71673997+  83  Linux
/dev/sda3            8949       10860    15358140   83  Linux
/dev/sda4           10861       19457    69055402+   5  Extended
/dev/sda5           10861       12772    15358108+  83  Linux
/dev/sda6           12773       14684    15358108+  83  Linux
/dev/sda7           14685       15703     8185086   83  Linux
/dev/sda8           15704       16340     5116671   83  Linux
/dev/sda9           16341       19457    25037271   8e  Linux LVM
[root joggerwang ~]# mount
/dev/mapper/VolGroup00-LogVol00 on / type ext3 (rw)
/proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
/dev/sda6 on /usr type ext3 (rw)
/dev/sda5 on /var type ext3 (rw)
/dev/sda3 on /opt type ext3 (rw)
/dev/sda1 on /boot type ext3 (rw)
tmpfs on /dev/shm type tmpfs (rw)
none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)
sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)
gvfs-fuse-daemon on /root/.gvfs type fuse.gvfs-fuse-daemon
(rw,nosuid,nodev)


/dev/sda2 ought to be the partition I seperated for /home,
and /dev/sda7, /dev/sda8 are seperated for /usr/local and /tmp
respectively, so I tried to  add three lines in /etc/mtab for them as
follows:
/dev/sda2 /home ext3 rw 0 0
/dev/sda7 /usr/local ext3 rw 0 0
/dev/sda8 /tmp ext3 rw 0 0
and in /etc/fstab as follows:
UUID=61b8990c-043e-4d1f-9a37-7f330cc49eb5 /home
ext3    defaults        1 1
UUID=0cf03423-386b-407b-a60b-54c076692d77 /usr/local
ext3    defaults        1 1
UUID=d8297ee9-bd48-4b2c-a81a-ba0afdf42d0d /tmp
ext3    defaults        1 1
but my files in /home/houghes still don't come out!
What should I do?
----
first, take a looksee at /dev/sda2 and see if that really is your
old /home...

mkdir /home/oldhome
mount /dev/sda2 /home/oldhome
ls -l /home/oldhome

if it is, you can figure out the UUID of /dev/sda2, probably just by
doing...

# ls -l /dev/disk/by-uuid/

and putting that UUID into /etc/fstab for a /home mount

I don't think that editing mtab is going to be useful.

May I suggest 'blkid' for stuff like this? Far easier to understand.

--
Bill Davidsen <davidsen tmr com>
  "We have more to fear from the bungling of the incompetent than from
the machinations of the wicked."  - from Slashdot


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