System only boots to read-only

[Doll, Margaret Ann]

My computer is up and running again.

These instructions did the trick.

mount -n -o remount,rw /

This will remount root as read-write and you should be able to edit the
fstab. After you finish, do a control-d to reboot.

I then had a problem with the NVIDIA display.  I found that
/usr/lib64/xorg/modules/libwfb.so had become a link to
libnvidia-wfb.so.1.   Looking at my identical setup on another computer, I
copied the libwfb.so from the second computer to the one with the video
problem.   With a reboot, the display is working again.

Thanks for all the help including reviewing the commands for logical
volumes, UUIDs and the remount.




On Wed, Oct 16, 2013 at 10:47 PM, Abhishek Tyagi <
abhishektyagi.dba at gmail.com> wrote:

> mount -n -o remount,rw /
>
> This will remount root as read-write and you should be able to edit the
> fstab. After you finish, do a control-d to reboot.
>
>
> On Thu, Oct 17, 2013 at 12:53 AM, Doll, Margaret Ann <
> margaret_doll at brown.edu> wrote:
>
> > I can
> >
> > fsck.ext4 /dev/sdan  while the compute is up readonly where "n" is a
> > variety of partitions.
> > Except for /dev/sda6.  I am assuming that this partition contains the
> > Volume group of / and swap.
> >
> > lvdisplay, vgdisplay and pvdisplay  give me the error message
> >
> > files base locking initialization failed.
> >
> > If I come up with the repair cd, fsck -c on any of the devices fails.
> >
> >
> > On Wed, Oct 16, 2013 at 2:16 PM, mark <m.roth at 5-cent.us> wrote:
> >
> > > On 10/16/13 14:10, Doll, Margaret Ann wrote:
> > >
> > >> Sorry.   I moving between buildings.  Below is the data.
> > >>
> > >> df
> > >> /dev/mapper/VolGroup00-**LogVol00        34%    /
> > >> tmpfs                     0%    /dev.shm
> > >> /dev/sda3                45%    /boot
> > >> /dev/sda5                92%    /home
> > >> /dev/sdb1                 1%    /tycho-1
> > >> /dev/sde1                37%    /raid
> > >>
> > >> I had to mount everything except / by hand
> > >>
> > >> service network start
> > >> Bringing up loopback interface:
> > >> Bringing up interface eth0:
> > >> Determining IP information for eth0...Can't create
> > >> /var/run/chclient-eth0.pid:
> > >>              Read-only file system.
> > >> ...
> > >>
> > >> fdisk /dev/sda
> > >> p
> > >> /dev/sda1    1    5    40131    de    Dell Utility
> > >> /dev/sda2    6    789    6290480  c    W95 FAT32 (LBA)
> > >> /dev/sda3    790    815     204800    83    Linux
> > >> Parition 3 does not end on cylinder boundary.
> > >> /dev/sda4    815    121602    970218496 5    Extended
> > >> /dev/sda5    815      1337      4194304 83    Linux
> > >> /dev/sda6    1338    121602    966022144 8e    Linux LVM
> > >>
> > >> mount /dev/sda6  /tmp
> > >> mount:  unknown filessystem type 'LVM2_member'
> > >>
> > >
> > > Ok, the rescue doesn't seem to understand LVM2.
> > >
> > >
> > >> fstab
> > >> /dev/mapper/VolGroup-LogVol100  /        ext4
> > >> UUID=f1fa....466        /boot    ext4
> > >> UUID=13a6e...eb5        /home    ext4
> > >> /dev/mapper/VolGroup00-**LogVol101 swap    swap
> > >> tmpfs
> > >> devpts
> > >> sysfs
> > >> proc
> > >>
> > >> /dev/sdb1            /tycho-1 ext4
> > >> /dev/sdd1            /raid    ext4
> > >>
> > >>  Ahhhh.... when you boot via rescue, or if you've brought it up
> > manually,
> > > check the UUID of the drives. If they've changed, both /etc/fstab *AND*
> > > /boot/grub/grub.conf need to be changed.
> > >
> > > Or you can use e2label to label the filesystem, and then change
> > /etc/fstab
> > > to
> > > LABEL=/boot     /boot...
> > > etc.
> > >
> > >
> > >         mark
> > >
> > > --
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>
> --
> Abhishek tyagi
> abhishektyagi.dba at gmail.com
> 09873924446
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