[clug] ext3 hackery "permission denied"
Tony and Robyn Lewis
beakysnugger at yahoo.co.uk
Wed Aug 24 05:17:19 GMT 2005
I was trying to reset the root password on a RHEL AS box. I booted
using a convenient Ubuntu Colony 2 install disk and went to a shell,
loaded the right drivers, mounted the partition and chrooted to it.
However, I was unable to write to /etc/passwd and /etc/shadow. Vi said
readonly, and couldn't be forced with :w!; I was unable to append lines
to the file using cat, nor copy a file over the top.
Permissions and ownership on the files were normal - 644 (passwd) and
Using getfacl showed nothing out of the ordinary, but to make sure, I
explicitly mounted it "-o noacl". No diff, still unable to write.
Ubuntu's installer kernel was 2.6.12-something and the native RHEL AS
one was 2.4.21-something I think.
Why would this be?
I eventually solved it by bulk copying /etc and editing the files in
there, then renaming.
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