initrd has disappeared

patrox · #1 30th May 2008, 08:45 AM

Hi!
My grub.conf has disappeared like also my initrd-2.6.25-14.fc9.i686 file too.

I don't wanna reinstall the system. Before, on that time a rescue disk existed, I went into a chroot enviroment and from there I could made my changes. Is it possible with a F9 Live CD? Or is there other solutions out there?

/ Patrik

notageek · #2 30th May 2008, 12:56 PM

With live CD its even easier.

1. Boot to the live CD
2. Mount the F9 partition
3. chroot to the F9 partition.
4. ls /boot verify other contents are present (vmlinuz-xxx etc)
5. mkinitrd initrd.img-kernelversion kernelversion
6. reboot.

patrox · #3 30th May 2008, 03:08 PM

/boot was empty...

notageek · #4 30th May 2008, 04:23 PM

While in chroot environment can you please try the following.

1. mount -a
2. fdisk -ls
3. ifconfig

Please post the output of the above here.

patrox · #5 31st May 2008, 01:04 PM

Here is the output:

Code:

[root@localhost boot]# mount -a
mount: special device UUID=88d71295-cbeb-4c5a-9604-64fffd47a810 does not exist
mount: mount point /dev/shm does not exist
mount: mount point /dev/pts does not exist
[root@localhost boot]# /sbin/fdisk -ls
cannot open /proc/partitions
[root@localhost boot]# /sbin/ifconfig 
Warning: cannot open /proc/net/dev (No such file or directory). Limited output.
Warning: cannot open /proc/net/dev (No such file or directory). Limited output.
lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  Metric:1

Warning: cannot open /proc/net/dev (No such file or directory). Limited output.
wlan0     Link encap:Ethernet  HWaddr 00:1D:E0:B5:06:AF  
          inet addr:192.168.1.3  Bcast:192.168.1.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

[root@localhost boot]#

notageek · #6 31st May 2008, 01:16 PM

Ok its not the output I would have to liked to see

Can you please post the /etc/fstab of your system

Code:

 cat /etc/fstab

Edit:
Can you please post the output of fdisk -ls from outside the chroot environment?

patrox · #7 31st May 2008, 01:24 PM

From the chroot environment

Code:

[root@localhost boot]# cat /etc/fstab 
UUID=cc9cedeb-1f14-4cf7-8b4e-ce05acd8c4e7 /                       ext3    defaults        1 1
UUID=88d71295-cbeb-4c5a-9604-64fffd47a810 /boot                   ext3    defaults        1 2
tmpfs                   /dev/shm                tmpfs   defaults        0 0
devpts                  /dev/pts                devpts  gid=5,mode=620  0 0
sysfs                   /sys                    sysfs   defaults        0 0
proc                    /proc                   proc    defaults        0 0
UUID=d7bae448-0bed-4fdd-9026-c8928a39657a swap                    swap    defaults        0 0
[root@localhost boot]#

notageek · #8 31st May 2008, 01:30 PM

Please try the following.

Code:

findfs UUID=cc9cedeb-1f14-4cf7-8b4e-ce05acd8c4e7

findfs UUID=88d71295-cbeb-4c5a-9604-64fffd47a810

patrox · #9 31st May 2008, 01:36 PM

Code:

[root@localhost ~]# /sbin/findfs UUID=cc9cedeb-1f14-4cf7-8b4e-ce05acd8c4e7
/dev/mapper/VolGroup00-LogVol00
[root@localhost ~]# /sbin/findfs UUID=88d71295-cbeb-4c5a-9604-64fffd47a810
findfs: Unable to resolve 'UUID=88d71295-cbeb-4c5a-9604-64fffd47a810'
[root@localhost ~]#

notageek · #10 31st May 2008, 02:00 PM

The problem here is your system isn't able to find the uuid /boot

Please try the following...

1. pvdisplay
2. vgdisplay
3. lvdisplay

patrox · #11 31st May 2008, 02:05 PM

This is the output from chroot

Code:

[root@localhost ~]# /sbin/pvdisplay 
  /proc/mounts: fopen %s failed: No such file or directory
  /proc/devices: fopen failed: No such file or directory
  Failed to create lvm type filter
[root@localhost ~]# /sbin/vgdisplay 
  /proc/mounts: fopen %s failed: No such file or directory
  /proc/devices: fopen failed: No such file or directory
  Failed to create lvm type filter
[root@localhost ~]# /sbin/lvdisplay 
  /proc/mounts: fopen %s failed: No such file or directory
  /proc/devices: fopen failed: No such file or directory
  Failed to create lvm type filter
[root@localhost ~]#

This is the output from the live-cd system:

Code:

[root@localhost boot]# /sbin/pvdisplay 
  --- Physical volume ---
  PV Name               /dev/sda2
  VG Name               VolGroup00
  PV Size               111.60 GB / not usable 2.86 MB
  Allocatable           yes 
  PE Size (KByte)       32768
  Total PE              3571
  Free PE               1
  Allocated PE          3570
  PV UUID               rNZdqX-LV36-XOk2-n3y5-RdAF-yUSU-P4FNae
   
[root@localhost boot]# /sbin/vgdisplay 
  --- Volume group ---
  VG Name               VolGroup00
  System ID             
  Format                lvm2
  Metadata Areas        1
  Metadata Sequence No  3
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                2
  Open LV               2
  Max PV                0
  Cur PV                1
  Act PV                1
  VG Size               111.59 GB
  PE Size               32.00 MB
  Total PE              3571
  Alloc PE / Size       3570 / 111.56 GB
  Free  PE / Size       1 / 32.00 MB
  VG UUID               v0OC0D-dWKv-nQ2h-ffjk-jqly-01I7-KphxfD
   
[root@localhost boot]# /sbin/lvdisplay 
  --- Logical volume ---
  LV Name                /dev/VolGroup00/LogVol00
  VG Name                VolGroup00
  LV UUID                c2dx0z-Oykj-JsP1-JU9c-oWUg-vnmM-szxZkF
  LV Write Access        read/write
  LV Status              available
  # open                 1
  LV Size                109.62 GB
  Current LE             3508
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:2
   
  --- Logical volume ---
  LV Name                /dev/VolGroup00/LogVol01
  VG Name                VolGroup00
  LV UUID                0SENzY-4eaX-U2yD-TMze-wtgR-Co2n-HuCpGj
  LV Write Access        read/write
  LV Status              available
  # open                 1
  LV Size                1.94 GB
  Current LE             62
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:3
   
[root@localhost boot]#

patrox · #12 31st May 2008, 02:11 PM

This output from the live-CD environment is interesting:

Code:

[root@localhost mnt]# mount /dev/sda1 /mnt/bootmaybe/
[root@localhost mnt]# cd bootmaybe/
[root@localhost bootmaybe]# ls
config-2.6.25-14.fc9.i686      memtest86+-2.01
efi                            System.map-2.6.25-14.fc9.i686
grub                           upgrade
initrd-2.6.25-14.fc9.i686.img  vmlinuz-2.6.25-14.fc9.i686
lost+found
[root@localhost bootmaybe]#

notageek · #13 31st May 2008, 02:18 PM

Is the following command successful? Run it outside the chroot environment.

Code:

 mount  /dev/VolGroup00/LogVol01 /mnt

If the above is successful then try the following.

1. ls /mnt (should ideally list your missing /boot contents, try and locate vmlinuz and grub.conf files here)

If 1 is true then try the following...

2. Edit the fstab (of the chroot system) add the following in the fstab and remove the previous /boot entry

Code:

/dev/VolGroup00/LogVol01  /boot                   ext3    defaults        1 2

Alternative Solution:

Incase you want to keep the UUID way you'll have to regenerate uuid by following.

1. tune2fs -U random /dev/VolGroup00/LogVol01
2. tune2fs -l |grep UUID (note the id returned)
3. Edit fstab and replace the uuio of /boot with this one.

notageek · #14 31st May 2008, 02:20 PM

Quote:

Originally Posted by patrox

This output from the live-CD environment is interesting:

Code:

[root@localhost mnt]# mount /dev/sda1 /mnt/bootmaybe/
[root@localhost mnt]# cd bootmaybe/
[root@localhost bootmaybe]# ls
config-2.6.25-14.fc9.i686      memtest86+-2.01
efi                            System.map-2.6.25-14.fc9.i686
grub                           upgrade
initrd-2.6.25-14.fc9.i686.img  vmlinuz-2.6.25-14.fc9.i686
lost+found
[root@localhost bootmaybe]#

What is the output of

Code:

 tune2fs -l /dev/sda1 | grep UUID

Are you dual booting?
Can you post the output of fdisk -ls from live CD?

patrox · #15 31st May 2008, 02:36 PM

Code:

[root@localhost bootmaybe]# mount /dev/VolGroup00/LogVol01 /mnt
/dev/mapper/VolGroup00-LogVol01 looks like swapspace - not mounted
mount: you must specify the filesystem type
[root@localhost bootmaybe]#

Code:

[root@localhost bootmaybe]# /sbin/tune2fs -l /dev/sda1 | grep UUID 
Filesystem UUID:          88d71295-cbeb-4c5a-9604-64fffd47a810
[root@localhost bootmaybe]#

Quote:

Are you dual booting?
Can you post the output of fdisk -ls from live CD?

I don't dualbooting

Code:

[root@localhost bootmaybe]# /sbin/fdisk -ls

Disk /dev/sda: 120.0 GB, 120034123776 bytes
255 heads, 63 sectors/track, 14593 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x000bdb88

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          25      200781   83  Linux
/dev/sda2              26       14593   117017460   8e  Linux LVM

Disk /dev/dm-0: 4294 MB, 4294967296 bytes
255 heads, 63 sectors/track, 522 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x00000000

Disk /dev/dm-0 doesn't contain a valid partition table

Disk /dev/dm-1: 4294 MB, 4294967296 bytes
255 heads, 63 sectors/track, 522 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x00000000

Disk /dev/dm-1 doesn't contain a valid partition table

Disk /dev/dm-2: 117.7 GB, 117708947456 bytes
255 heads, 63 sectors/track, 14310 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x00000000

Disk /dev/dm-2 doesn't contain a valid partition table

Disk /dev/dm-3: 2080 MB, 2080374784 bytes
255 heads, 63 sectors/track, 252 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x30307800

Disk /dev/dm-3 doesn't contain a valid partition table
[root@localhost bootmaybe]#