Problem emerging xorg

[kardal]

Calculating dependencies ...done!
Failed to open file for writedict(): //var/lib/portage/world
>>> emerge (1 of 4) x11-base/xorg-x11-6.8.2-r4 to /
Traceback (most recent call last):
File "/usr/bin/emerge", line 3200, in ?
mydepgraph.merge(mydepgraph.altlist())
File "/usr/bin/emerge", line 1904, in merge
retval=portage.doebuild(y,"clean",myroot,self.pkgsettings,edebug,cleanup=1)
File "/usr/lib/portage/pym/portage.py", line 2458, in doebuild
os.chown(mysettings["BUILD_PREFIX"],portage_uid,portage_gid)
OSError: [Errno 30] Read-only file system: '/var/tmp/portage'

got this error message when trying to merge xorg-x11, anyone had this problem before?
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[kardal]

tux ~ # mount /var -o rw,remount
mount: block device /dev/vg/var is write-protected, mounting read-only
tux ~ #


Oct 1 22:54:33 tux kernel: [ 107.389339] EXT3-fs warning (device dm-1): ext3_unlink: Deleting nonexistent file (20719), 0
Oct 1 22:54:33 tux kernel: [ 107.392215] EXT3-fs warning (device dm-1): ext3_unlink: Deleting nonexistent file (20720), 0
Oct 1 22:54:33 tux kernel: [ 107.392547] EXT3-fs warning (device dm-1): ext3_unlink: Deleting nonexistent file (20721), 0
Oct 1 22:54:33 tux kernel: [ 107.395074] EXT3-fs warning (device dm-1): ext3_unlink: Deleting nonexistent file (20722), 0
Oct 1 22:54:33 tux kernel: [ 107.395418] EXT3-fs warning (device dm-1): ext3_unlink: Deleting nonexistent file (20723), 0
Oct 1 22:54:33 tux kernel: [ 107.396722] EXT3-fs warning (device dm-1): ext3_unlink: Deleting nonexistent file (20724), 0
Oct 1 22:54:33 tux kernel: [ 107.399353] EXT3-fs warning (device dm-1): ext3_unlink: Deleting nonexistent file (20725), 0
Oct 1 22:54:33 tux kernel: [ 107.401899] EXT3-fs warning (device dm-1): ext3_unlink: Deleting nonexistent file (20726), 0
Oct 1 22:54:33 tux kernel: [ 107.403874] EXT3-fs warning (device dm-1): ext3_unlink: Deleting nonexistent file (20727), 0
Oc

tried this too, so maybe it's the disk giving up.

a good thing finding out so early in the process, just got gentoo installed. a bad thing that i've got to install it a second time.
_________________
What! I'm using a computer?