[drm:i810_wait_ring] *ERROR* space: 65520 wanted 65528

[Fedon Kadifeli]

Recently I changed my boot disk on a Linux box. I created new partitions (with different sizes and minor number order) and copied all the root partition's files to the new root partition using the commands:

# cd /oldroot
# find . -xdev | cpio -pduvlm /newroot

I had some problems with booting, but finally doing grub_install, etc, I managed to boot from the new disk and remove the old disk from the system completely.

Now, when I boot I get several errors:

(1) named doesn't start (not important!):
named[2412]: none:0: open: /etc/named.conf: permission denied
named[2412]: loading configuration: permission denied

I checked the file '/etc/named.conf'. There is nothing wrong with the file. It is same as the original on the old boot disk.

(2) lpd doesn't start (not important either):

lpd: 2003-09-30-14:21:24.995 tstws2 Read_file_list: cannot stat required or included file '/etc/printcap' - Permission denied

I checked '/etc/printcap'. Nothing wrong with this file.

(3) X doesn't start (important). It gives the following error messages on the console:

[drm:i810_wait_ring] *ERROR* space: 65520 wanted 65528
[drm:i810_wait_ring] *ERROR* lockup

I tried to reconfigure X (using redhat-config-xfree86) and specifying standard VGA 640x480 mode, but I still get the same errors.

Some help (especially for the 3rd case) will be highly appreciated...

[Mark Grant · Accepted solution]

You might want to check the permissions on the /etc directory itself, it should be 755 root:root

Hope it helps

[Fedon Kadifeli]

Yes! It really seems a like directory permission problem. I ran the following commands:

# mount ... /oldroot
# cd /oldroot
# find . -type d -exec chmod --reference='{}' /'{}' \;
# find . -type d -exec chown --reference='{}' /'{}' \;

and all the problems are solved.

Now, another question: Since the command sequence:

# cd /oldroot
# find . -xdev | cpio -pduvlm /newroot

failed to replicate permission information on directories, what is the best command sequence to move (actually copy) files from one filesystem to another?

[Mark Grant]

The only way I have done this is as follows.

cd /
tar cvf - * | (cd /newplace; tar xpf -)

But, this won't copy device files as far as I know.

Did you aready have an "etc" directory in the filesystem you were copying to because then the permsiions could well end up wrong.

[Fedon Kadifeli]

cpio did copied the device files. The only problem was in the permission (and maybe the ownership) of *some* directories. The destination disk was a newly formatted (vie mkfs) filesystem, there was no /etc directory; I think the combination of find | cpio resulted in *some* directories created by cpio (due to the -d option of cpio) with default permissions.