The problem was not fixed. Here is a record of my attempts to boot a liveCD and install Kubuntu Alpha 6 (KDE4 version).
Default kernel options: file=/cdrom/preseed/kubuntu-kde4.seed boot=casper initrd=/casper/initrd.gz quiet splash -- Saved log files are in logs.tar.gz. Try 1: noapic all_generic_ide (no quiet or splash) Kernel options: file=/cdrom/preseed/kubuntu-kde4.seed boot=casper initrd=/casper/initrd.gz -- noapic all_generic_ide Notable items amid the massive amount of output: sr0: scsi3-mmc drive: 48x/48x writer cd/rw xa/form2 cdda tray It actually started to run KDE4, but then this happened: Buffer I/O error on device sr0, logical block 126235 Buffer I/O error on device sr0, logical block 126236 This was followed by a bunch of squashfs errors. Ctrl-Alt-Del from a USB keyboard successfully rebooted the computer. Try 2: noapic all_generic_ide (no splash) Kernel options: file=/cdrom/preseed/kubuntu-kde4.seed boot=casper initrd=/casper/initrd.gz quiet -- noapic all_generic_ide This happened immediately: Buffer I/O error on device sr0, logical block 355409 Buffer I/O error on device sr0, logical block 355410 Buffer I/O error on device sr0, logical block 355409 Buffer I/O error on device sr0, logical block 355410 This kept going with a few other logical block numbers (335411 - 335423) until I rebooted. Ctrl-Alt-Del from a USB keyboard successfully rebooted the computer. Try 3: noapic (no splash) Kernel options: file=/cdrom/preseed/kubuntu-kde4.seed boot=casper initrd=/casper/initrd.gz quiet -- noapic This happened immediately: hda: error code: 0x70 sense_key: 0x03 asc: 0x11 ascq: 0x05 Buffer I/O error on device hda, logical block 355273 The same hda error kept occurring, while the buffer I/O error repeated with different block numbers. Ctrl-Alt-Del from a USB keyboard successfully rebooted the computer. Try 4: acpi_use_timer_override (no splash) Kernel options: file=/cdrom/preseed/kubuntu-kde4.seed boot=casper initrd=/casper/initrd.gz quiet -- acpi_use_timer_override Lots of USB errors like the following: hub 1-5:1.0: hub_port_status failed (err = -62) hub 1-5:1.0: Cannot enable port 1. Maybe the USB cable is bad? I got the following: Buffer I/O error on device sr0, logical block 301533 Buffer I/O error on device sr0, logical block 301534 However, the machine continued to boot. X loaded. KDE4 loaded. I then opened Konsole and ran md5sum /dev/hda. It completed successfully with no new messages in /var/log/dmesg or /var/log/messages. At this point, I copied dmesg and messages to another computer (see try4/dmesg-pre.log and try4/messages-pre.log). I then attempted to install Kubuntu. The installer loaded, but upon clicking "Next", dmesg reported lots of buffer I/O errors on logical blocks around 82741, plus hda error code 0x70 with sense_key 0x03, asc 0x11, and ascq 0x05. The computer more or less locked up. I managed to switch to a VT and reboot with Ctrl-Alt-Del. Try 5: acpi_use_timer_override all_generic_ide (no splash) Kernel options: file=/cdrom/preseed/kubuntu-kde4.seed boot=casper initrd=/casper/initrd.gz quiet -- acpi_use_timer_override all_generic_ide It hung several times during boot, but seemed to work. KDE4 loaded. I ran md5sum /dev/scd0 in VT 2 while watching VT 1 for any messages. It completed successfully with no new messages in dmesg or /var/log/messages. I backed up the results of dmesg and /var/log/messages at this point (see try5/dmesg-pre.log and try5/messages-pre.log). I then switched back to X and attempted to install Kubuntu. VT 1 then reported lots buffer I/O errors from device sr0, with logical block numbers around 292284. Ctrl-Alt-Del on my USB keyboard did NOT help. I could switch to other VTs and type commands, but to no avail. SysRq-B, however, worked. I then successfully used the very same disc to install Kubuntu-KDE4 in a virtual machine on a different computer (a notebook with a SATA optical drive and an Intel chipset). ** Attachment added: "logs.tar.gz" http://launchpadlibrarian.net/12535332/logs.tar.gz -- [hardy] I/O errors at 60-70% on CD reads https://bugs.launchpad.net/bugs/187807 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
