I solved my problem : having installed ubuntu from an usb key, there was a CD-ROM entry /dev/sdb1 in my fstab, which is the usual reference of any external device I might plug.
Good luck with your problem. -- Kubuntu Live CD fails to automount hard disk partitions https://bugs.launchpad.net/bugs/139622 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs