Read Only??

Just created a new linode in another data center and cloned an existing linode to it.

When I boot it and access it via Lish so that I can set the network etc… I find that the system is in read-only mode.

Not sure how to remedy that. The fileystems look like:

Filesystem            Size  Used Avail Use% Mounted O n                                              
/dev/xvda              39G   23G   15G  60% /                                                       
tmpfs                 502M     0  502M   0% /lib/init/rw                                            
udev                   10M  112K  9.9M   2% /dev                                                    
tmpfs                 502M     0  502M   0% /dev/shm                                                
root@ulterius:~# mount                                                                              
/dev/xvda on / type ext3 (rw,noatime,errors=remount-ro)                                             
tmpfs on /lib/init/rw type tmpfs (rw,nosuid,mode=0755)                                              
proc on /proc type proc (rw,noexec,nosuid,nodev)                                                    
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)                                                   
udev on /dev type tmpfs (rw,mode=0755)                                                              
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)                                                      
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=620)   

mount: warning: /etc/mtab is not writable (e.g. read-only filesystem).                              
       It's possible that information reported by mount(8) is not                                   
       up to date. For actual information about system mount points                                 
       check the /proc/mounts file.        

cat /etc/fstab                                                                     
# /etc/fstab: static file system information.                                                       
#                                                                                                   
# Use 'blkid' to print the universally unique identifier for a                                      
# device; this may be used with UUID= as a more robust way to name devices                          
# that works even if disks are added and removed. See fstab(5).                                     
#                                                                                                   
# <file system=""><mount point=""><type><options><dump><pass>proc            /proc           proc    defaults        0       0                                   
/dev/xvda       /               ext3    noatime,errors=remount-ro 0     1                           
/dev/xvdb       none            swap    sw      0       0</pass></dump></options></type></mount></file>