Also experiencing this problem with 04282011 AMD64 Desktop LiveCD. Tracing the ubiquity process gives the following.
Process 17136 attached - interrupt to quit restart_syscall(<... resuming interrupted call ...>) = 0 wait4(17140, 0x7fff10d558cc, WNOHANG, NULL) = 0 stat("/proc/17140", {st_mode=S_IFDIR|0555, st_size=0, ...}) = 0 open("/proc/17140/stat", O_RDONLY) = 18 read(18, "17140 (sudo) S 17136 17140 17140"..., 8191) = 185 read(18, "", 8006) = 0 close(18) = 0 nanosleep({0, 100000000}, NULL) = 0 wait4(17140, 0x7fff10d558cc, WNOHANG, NULL) = 0 stat("/proc/17140", {st_mode=S_IFDIR|0555, st_size=0, ...}) = 0 open("/proc/17140/stat", O_RDONLY) = 18 read(18, "17140 (sudo) S 17136 17140 17140"..., 8191) = 185 read(18, "", 8006) = 0 close(18) = 0 nanosleep({0, 100000000}, NULL) = 0 wait4(17140, 0x7fff10d558cc, WNOHANG, NULL) = 0 stat("/proc/17140", {st_mode=S_IFDIR|0555, st_size=0, ...}) = 0 open("/proc/17140/stat", O_RDONLY) = 18 read(18, "17140 (sudo) S 17136 17140 17140"..., 8191) = 185 read(18, "", 8006) = 0 close(18) = 0 Which just repeats over and over and over. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/722769 Title: After prepare for installation ubiquity hang because child wget process is zombie -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs