Problems mounting linux partition as rw

OtisLinux · 10-27-2010, 10:30 AM

Ok, I have a dual boot netbook with Ubuntu and Windows 7 on it. I want to access and change some information on my Ubuntu partition from another distro of linux.

I am running tinycore off of a flash drive and trying to mount my linux partition with write permission.

When I try to do
mount -o rw /dev/sda3 I get the error "Invalid Argument"

It will however let me mount it as read only.

I have also tried to boot in single user mode so that I can change a file, but again it only boots in read-only.

Any thoughts?

fbobraga · 10-27-2010, 10:46 AM

the target mount point is missing:

Code:

mount -o rw /dev/sda3 /<some_path>

OtisLinux · 10-27-2010, 10:51 AM

Tried that, get the same error "invalid argument"
If i change it to mount -o ro /dev/sda3 /<some path> it works

fbobraga · 10-27-2010, 10:56 AM

don't use the -o rw switch - try to adjust the permissions with chmod (with root, or in Ubuntu with the regular user)

fbsduser · 10-27-2010, 11:00 AM

Did you run fsck on it? It could be that the filesystem is dirty (improperly unmounted). Also is your partition formatted to ext4? some mini-distros lack ext4 support and tend to choke in funny ways when trying to mount an ext4 partition.

OtisLinux · 10-27-2010, 11:07 AM

AHH it was the fsck, it did not unmount properly. I fixed the errors and was able to mount just fine. Thanks all. I've been working on that for a bit now.