[Bug 915079] Re: Extended Partition misaligned by 1024 bytes
Nathan Haines, If that is the case , then can some one update the Disk Utility software not to give the WARNING your partition is MISALIGNED and may result in POOR PERFORMANCE when the Extended partition is misaligned. I mean, if misalignment is the intent to save disk space then why give a warning that confuses the user. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/915079 Title: Extended Partition misaligned by 1024 bytes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/915079/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 915079] Re: Extended Partition misaligned by 1024 bytes
Hi, I have the same problem with my Ubuntu 12.04 on my HP Pavilion (I changed the hard disk with Western Digital too). I think this is the reason why, sometimes, my sistem crashes with a message like: Could not write bytes: broken pipes. This appens while running Chrome or Steam. With Firefox things work It's a bug of the Disk Manager, or partitioning with Anvanced Format doesn't work? I have to reinstall Ubuntu? (sorry for my poor english) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/915079 Title: Extended Partition misaligned by 1024 bytes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/915079/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 915079] Re: Extended Partition misaligned by 1024 bytes
/dev/sda2 is your extended partition, which does not contain any data, just a linked list of logical partitions. This allows for more than 4 partitions using the MBR (msdos) partition table format. Since the partition is never accessed directly, it does not need to be aligned. It is misaligned by 1KB to maximize the usable space on your drive. /dev/sda1 is the partition containing your root file system and it is positioned at 1MB, which is properly aligned with your Advanced Format drive. /dev/sda5 is the partition containing your swap space and it is also properly aligned. Per Ubuntu bug guidelines, please do not confirm your own bugs--this should be done by another individual who can reproduce the bug on another system. Thank you for reporting this bug. In this case, as we've discussed, it looks like everything is working fine. Therefore, I am marking this bug as invalid because it appears that your hard drive was partitioned properly. Feel free to respond to this bug if new information arises. ** Changed in: ubuntu Status: Confirmed = Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/915079 Title: Extended Partition misaligned by 1024 bytes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/915079/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 915079] Re: Extended Partition misaligned by 1024 bytes
Boot Info Script 0.60from 17 May 2011
= Boot Info Summary: ===
= Grub2 (v1.99) is installed in the MBR of /dev/sda and looks at sector 1 of
the same hard drive for core.img. core.img is at this location and looks
for on this drive.
sda1:
__
File system: ext4
Boot sector type: -
Boot sector info:
Operating System: Ubuntu precise (development
branch)
Boot files:/boot/grub/grub.cfg /etc/fstab /boot/grub/core.img
sda2:
__
File system: Extended Partition
Boot sector type: -
Boot sector info:
sda5:
__
File system: swap
Boot sector type: -
Boot sector info:
Drive/Partition Info:
=
Drive: sda
_
Disk /dev/sda: 750.2 GB, 750156374016 bytes
255 heads, 63 sectors/track, 91201 cylinders, total 1465149168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
Partition Boot Start SectorEnd Sector # of Sectors Id System
/dev/sda1* 2,048 1,448,554,495 1,448,552,448 83 Linux
/dev/sda2 1,448,556,542 1,465,147,39116,590,850 5 Extended
/dev/sda5 1,448,556,544 1,465,147,39116,590,848 82 Linux swap /
Solaris
blkid output:
Device UUID TYPE LABEL
/dev/sda15540c75a-9b98-4b39-833f-833fd8448aaf ext4
/dev/sda5f1ff6783-b8d3-4780-88b2-b24c88f347f2 swap
Mount points:
=
Device Mount_Point Type Options
/dev/sda1/ext4 (rw,errors=remount-
ro,user_xattr)
=== sda1/boot/grub/grub.cfg: ===
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#
### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
set have_grubenv=true
load_env
fi
set default=0
if [ ${prev_saved_entry} ]; then
set saved_entry=${prev_saved_entry}
save_env saved_entry
set prev_saved_entry=
save_env prev_saved_entry
set boot_once=true
fi
function savedefault {
if [ -z ${boot_once} ]; then
saved_entry=${chosen}
save_env saved_entry
fi
}
function recordfail {
set recordfail=1
if [ -n ${have_grubenv} ]; then if [ -z ${boot_once} ]; then save_env
recordfail; fi; fi
}
function load_video {
insmod vbe
insmod vga
insmod video_bochs
insmod video_cirrus
}
insmod part_msdos
insmod ext2
set root='(hd0,msdos1)'
search --no-floppy --fs-uuid --set=root 5540c75a-9b98-4b39-833f-833fd8448aaf
if loadfont /usr/share/grub/unicode.pf2 ; then
set gfxmode=auto
load_video
insmod gfxterm
insmod part_msdos
insmod ext2
set root='(hd0,msdos1)'
search --no-floppy --fs-uuid --set=root 5540c75a-9b98-4b39-833f-833fd8448aaf
set locale_dir=($root)/boot/grub/locale
set lang=en_US
insmod gettext
fi
terminal_output gfxterm
if [ ${recordfail} = 1 ]; then
set timeout=10
else
set timeout=10
fi
### END /etc/grub.d/00_header ###
### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
if background_color 44,0,30; then
clear
fi
### END /etc/grub.d/05_debian_theme ###
### BEGIN /etc/grub.d/10_linux ###
if [ ${recordfail} != 1 ]; then
if [ -e ${prefix}/gfxblacklist.txt ]; then
if hwmatch ${prefix}/gfxblacklist.txt 3; then
if [ ${match} = 0 ]; then
set linux_gfx_mode=keep
else
set linux_gfx_mode=text
fi
else
set linux_gfx_mode=text
fi
else
set linux_gfx_mode=keep
fi
else
set linux_gfx_mode=text
fi
export linux_gfx_mode
if [ $linux_gfx_mode != text ]; then load_video; fi
menuentry 'Ubuntu, with Linux 3.2.0-10-generic' --class ubuntu --class
gnu-linux --class gnu --class os {
recordfail
set gfxpayload=$linux_gfx_mode
insmod gzio
insmod part_msdos
insmod ext2
set root='(hd0,msdos1)'
search --no-floppy --fs-uuid --set=root
5540c75a-9b98-4b39-833f-833fd8448aaf
linux /boot/vmlinuz-3.2.0-10-generic
root=UUID=5540c75a-9b98-4b39-833f-833fd8448aaf ro quiet splash vt.handoff=7
initrd /boot/initrd.img-3.2.0-10-generic
}
menuentry 'Ubuntu, with Linux 3.2.0-10-generic (recovery mode)' --class ubuntu
--class gnu-linux --class gnu --class
[Bug 915079] Re: Extended Partition misaligned by 1024 bytes
NOTE: Partition 2 does not start on physical sector boundary. ** Changed in: ubuntu Status: New = Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/915079 Title: Extended Partition misaligned by 1024 bytes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/915079/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 915079] Re: Extended Partition misaligned by 1024 bytes
** Description changed: Machine: Make: Asus u46e-bal6 Processor: core i7 2.4 quad core - Memory: 8 GB + Memory: 8 GB HDD: Western Digital WDC WD7500BPKT-80PK4T0 (advanced format) firmware version 01.01A10 - lucid would not install, Natty would not work, Oeniric would not work, + lucid would not work, Natty would not work, Oeniric would not work, running Precise alpha: The following partitions were set up automatically by ubuntu: swap: 8.5 GB (8,494,514,176 bytes) extended: 8.5 GB (8,494,515,200 bytes) OS: 742 GB (741,658,853,376 bytes) i receive the following error message regarding extended partition: 'WARNING: The partition is misaligned by 1024 bytes. This may result in very poor performance. Repartitioning is suggested' NOTE: (i know this is obvious) but 515,200-514,176 = 1024 I have tried using GParted from boot disk as suggested with no success. I have tried the manual install method 'something else' from live CD which only recognizes /sda1 (os) and /sda5 (swap), /sda2 (extended) does not appear. Bug affects the following releases: lsb_release -rd Description: Ubuntu precise (development branch) Release: 12.04 also affects: lsb_release -rd Description: Ubuntu 11.10 Release: 11.10 also affects: lsb_release -rd Description: Ubuntu 11.04 Release: 11.04 - I have attached screenshots from my disk utility: -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/915079 Title: Extended Partition misaligned by 1024 bytes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gedit/+bug/915079/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 915079] Re: Extended Partition misaligned by 1024 bytes
** Attachment added: screenshot of disk utility https://bugs.launchpad.net/bugs/915079/+attachment/2668668/+files/bad_partition.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/915079 Title: Extended Partition misaligned by 1024 bytes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gedit/+bug/915079/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 915079] Re: Extended Partition misaligned by 1024 bytes
** Package changed: gedit (Ubuntu) = ubuntu -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/915079 Title: Extended Partition misaligned by 1024 bytes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/915079/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
