Hmm. That system doesn't run Ubuntu anymore, but I can retry the installer in order to reproduce steps. From what I recall, grub-probe is the process that was waiting on io, which would have been the one I strace'd after seeing it in top (that's why it starts in the middle). I don't know anything about the internals of grub2 to know what launches os-prober, or how to dig through what dpkg-reconfigure is doing behind the scenes other than digging through the gigantic strace log or watching top.
I double-checked on the configuration and here's what it is: The array shows up as /dev/sda, I created a GPT on there, and then used /dev/sda (NOT /dev/sda1 like I should have) as a physical volume for lvm, possibly overwriting some of the gpt so parted refuses to display it now. Then it goes through lvm... and I mount /dev/mapper/gulliver- gulliver as ext3. If you can provide what additional things you want me to check, I can go through the installation process again. # lvdisplay --- Logical volume --- LV Name /dev/gulliver/gulliver VG Name gulliver LV UUID pZhRIZ-toAC-OmOj-eag0-QQjx-cwRb-qfDyfO LV Write Access read/write LV Status available # open 1 LV Size 4.09 TiB Current LE 1072815 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 254:0 # vgdisplay --- Volume group --- VG Name gulliver System ID Format lvm2 Metadata Areas 1 Metadata Sequence No 2 VG Access read/write VG Status resizable MAX LV 0 Cur LV 1 Open LV 1 Max PV 0 Cur PV 1 Act PV 1 VG Size 4.09 TiB PE Size 4.00 MiB Total PE 1072815 Alloc PE / Size 1072815 / 4.09 TiB Free PE / Size 0 / 0 VG UUID yXEddB-w4FI-xEY3-Fv9f-HEak-rAGs-xh6Oc7 # pvdisplay --- Physical volume --- PV Name /dev/sda VG Name gulliver PV Size 4.09 TiB / not usable 243.00 MiB Allocatable yes (but full) PE Size 4.00 MiB Total PE 1072815 Free PE 0 Allocated PE 1072815 PV UUID p1FNRC-f7H6-Iv5v-5zfq-dXnt-MsgJ-AHmqse -- grub-probe does a linear scan on large drives https://bugs.launchpad.net/bugs/478794 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
