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    [ubuntu] Re: Ubuntu won't boot after updates

    Thanks for your reply, that worked!

    I'd read about using chroot, but hadn't understood how to set it up properly. I ran update-burg, and it booted it up fine. I guess this is because...
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    [ubuntu] Ubuntu won't boot after updates

    I recently installed updates from update-manager and now when I try to boot into ubuntu, I get this message "Alert /dev/disk/by-uuid=[XXX] does not exist. Dropping to a shell.". I am running Ubuntu...
  3. [ubuntu] Re: External hard drive shows up as "unallocated" in GParted

    Well, I created a new partition table, restored the partitions and I've managed to salvage all of my files.

    Thanks to everyone who responded
  4. [ubuntu] Re: External hard drive shows up as "unallocated" in GParted

    I actually tried to repair the disk using Disk Utility again, but this time I noticed the problem it detected was with the volume's bitmap.
  5. [ubuntu] Re: External hard drive shows up as "unallocated" in GParted

    Thanks for your response.

    I've emailed you the output of that command. In Disk Utility, I had previously tried to disable journaling and to "repair" one of the paritions. Both attemps failed. I...
  6. [ubuntu] Re: External hard drive shows up as "unallocated" in GParted

    Also, parted lists the partition table of the drive as "msdos" but Disk Utility says it's Apple. If I use mklabel, just I make it mac or msdos?
  7. [ubuntu] Re: External hard drive shows up as "unallocated" in GParted

    I ran testdisk on this drive and it managed to identify both lost partitions and their start and end sectors. Only it couldn't write the partitions and gave this message : "Function write_part_mac...
  8. [ubuntu] Re: External hard drive shows up as "unallocated" in GParted

    "sudo diskutil list" :

    /dev/disk0
    #: TYPE NAME SIZE IDENTIFIER
    0: GUID_partition_scheme *111.8 Gi disk0
    1: ...
  9. [ubuntu] Re: External hard drive shows up as "unallocated" in GParted

    According to "parted /dev/sdb print" the partition table is msdos, but it was created using disk utility and hfs+. Does that make sense?
  10. [ubuntu] Re: External hard drive shows up as "unallocated" in GParted

    "sudo gdisk -l /dev/sdb" :

    gdisk: /lib/libuuid.so.1: no version information available (required by gdisk)
    GPT fdisk (gdisk) version 0.6.13

    Partition table scan:
    MBR: MBR only
    BSD: not...
  11. [ubuntu] Re: External hard drive shows up as "unallocated" in GParted

    Disk utility lists them both as hfs+, one journaled and one not. Would I really need to reformat the drive? I was able to read and write to it previously with Ubuntu. Also the output of "parted...
  12. [ubuntu] External hard drive shows up as "unallocated" in GParted

    I'm about to make a clean install of my dual-booting Ubuntu and Windows 7 system, so I made some backups to an external hard drive which has two partitions, one hfs+(journaled) and one hfs+. I would...
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    [ubuntu] Re: Uncertain if quad-core processor recognised

    In post #23 I was trying to boot with acpi disabled because I'd read it could help, but this did not make a difference because I didn't know that acpi was already disabled in the BIOS. The problem...
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    [ubuntu] Re: Uncertain if quad-core processor recognised

    It's fixed. System monitor now shows all four cores. The problem was that apic wasn't disabled in the kernel line, but it was in the BIOS setup. I'd already checked the BIOS to make sure all cores...
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    [ubuntu] Re: Uncertain if quad-core processor recognised

    I'll probably try booting into a 64-bit LiveCD later today. Would compiling a new kernel possibly fix this issue?
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    [ubuntu] Re: Uncertain if quad-core processor recognised

    Would a fresh install fix the problem? Could installing 64 bit ubuntu or booting into a LiveCD help?


    Is there a way to reinstall the kernel, or something along those lines?
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    [ubuntu] Re: Uncertain if quad-core processor recognised

    The output of "sudo lshw | bzip2 -c > lshw.bz2" is attached to this post.

    Does ubuntu 8.10 use the 386 or 686 kernel? I've read that 686 is better for Intel processors. Is this true?
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    [ubuntu] Re: Uncertain if quad-core processor recognised

    I tried booting with noapic and then with acpi=off at the end of the kernel line, but it did not make a difference.

    This is the output of dmesg | grep -i cpu:
    [ 0.000000] Initializing cgroup...
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    [ubuntu] Re: Uncertain if quad-core processor recognised

    I tried booting from an 8.04 LiveCD but system monitor still didn't recognize all 4 cores. Could booting into a more recent LiveCD help?

    I've seen posts where booting with acpi off helped. Should...
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    [ubuntu] Re: Uncertain if quad-core processor recognised

    Here's the output of dmesg | grep -i cpu:
    [ 0.000000] Initializing cgroup subsys cpuset
    [ 0.000000] Initializing cgroup subsys cpu
    [ 0.000000] SMP: Allowing 1 CPUs, 0 hotplug CPUs
    [ ...
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    [ubuntu] Re: Uncertain if quad-core processor recognised

    I only have a folder named cpu0 and another named cpuidle in /sys/devices/system/cpu. I have made changes to grub. I recently installed Windows over Ubuntu and had to make some changes for it to...
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    [ubuntu] Re: Uncertain if quad-core processor recognised

    cat /proc/cpuinfo:
    processor : 0
    vendor_id : GenuineIntel
    cpu family : 6
    model : 15
    model name : Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz
    stepping : 11
    cpu MHz : 2399.950
    cache...
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    [ubuntu] Re: Uncertain if quad-core processor recognised

    mpstat -P ALL:

    Linux 2.6.27-9-generic (tristan-desktop) 07/02/09 _i686_

    01:07:05 PM CPU %user %nice %sys %iowait %irq %soft %steal %idle intr/s
    01:07:05 PM all 19.38 ...
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    [ubuntu] Re: Uncertain if quad-core processor recognised

    Here's th ouput:
    *-cpu
    description: CPU
    product: Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz
    vendor: Intel Corp.
    physical id: 4
    bus...
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    [ubuntu] Uncertain if quad-core processor recognised

    Hi,
    I've been using Ubuntu on with an Intel Quad-Core Q6600, but I am currently starting to doubt if all four cores are recognized. I noticed this when I launched Conky and it said that I was trying...
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