Partition 1 does not start on physical sector boundary.
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Partition 1 does not start on physical sector boundary.
Windows 7 and Fedora 19 dual-boot on my desktop machine.
in Fedora 19, fdisk -l outputs
Code:
Disk /dev/sda: 500.1 GB, 500107862016 bytes, 976773168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk label type: dos
Disk identifier: 0x2bd2c32a
Device Boot Start End Blocks Id System
/dev/sda1 * 63 314584829 157292383+ 7 HPFS/NTFS/exFAT
Partition 1 does not start on physical sector boundary.
/dev/sda2 314585088 874371119 279893016 7 HPFS/NTFS/exFAT
/dev/sda3 925573120 926597119 512000 83 Linux
/dev/sda4 926597120 976773167 25088024 5 Extended
/dev/sda5 926599168 934529023 3964928 82 Linux swap / Solaris
/dev/sda6 934531072 976773119 21121024 83 Linux
so, I googled about the message of Partition 1 does not start on physical sector boundary. to fix it.
the question is that
can I resize and move Partition 1 which holds Windows 7 in Fedora 19 using gparted? If I do so, Windows 7 won't boot?
so, I googled about the message of Partition 1 does not start on physical sector boundary. to fix it.
That's just a warning, it's not really a problem needing fixing. This shouldn't prevent your computer from running.
I do find it odd that partition 1 starts at sector 63. I think that if one installs Windows Vista or 7 and let the installer partition the disk, partition 1 would start at sector 2048 by default. If one installs Windows XP or earlier, partition 1 starts at sector 63 by default. Did this computer originally had XP or an older Windows OS, then later upgraded? Just curious.
I recently configured a dell laptop that dual-boots windows 8 and fedora 19. I started by installing XP on a new hard drive, then upgraded to windows 8 from the w8pro dvd, and finally installed fedora 19 from dvd.
The windows partition starts at block 63 on my machine too, but I don't get any message about not starting on a sector boundary.
Code:
[root@d620 ~]# fdisk -l
Disk /dev/sda: 160.0 GB, 160041885696 bytes, 312581808 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x0fc00fc0
Device Boot Start End Blocks Id System
/dev/sda1 * 63 122881184 61440561 7 HPFS/NTFS/exFAT
/dev/sda2 122882048 123906047 512000 83 Linux
/dev/sda3 123906048 312457215 94275584 8e Linux LVM
The difference seems to be the I/O size, I'm using 512-byte blocks
The windows partition starts at block 63 on my machine too, but I don't get any message about not starting on a sector boundary.
Code:
[root@d620 ~]# fdisk -l
Disk /dev/sda: 160.0 GB, 160041885696 bytes, 312581808 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
Your drive actually has 512 byte physical sectors.
The OP has a 4k sector drive ("advanced format") with 512 byte emulation, and his partition starts in the middle of a 4k sector. The file system blocks will be misaligned as well, which will hurt performance, especially writes.
Your drive actually has 512 byte physical sectors.
The OP has a 4k sector drive ("advanced format") with 512 byte emulation, and his partition starts in the middle of a 4k sector. The file system blocks will be misaligned as well, which will hurt performance, especially writes.
yes, that's right, it hurt performance, especially writes. in my experience, chrome, spreadsheet and other office programs frequently crash when they load two or three tasks at the same time. i suspect it is because of my partition error.
yes, that's right, it hurt performance, especially writes. in my experience, chrome, spreadsheet and other office programs frequently crash when they load two or three tasks at the same time. i suspect it is because of my partition error.
Misaligned sectors and file system fragments can make disk access (and hence the entire system) slower.
It will, however, NOT cause applications to crash or malfunction. If your system is unstable, partition alignment is not to blame.
Misaligned sectors and file system fragments can make disk access (and hence the entire system) slower.
It will, however, NOT cause applications to crash or malfunction. If your system is unstable, partition alignment is not to blame.
ohh! really? thanks for ur sharing knowledge.
so, i think i should forget about this partition error because this is office computer.
i don't wanna take risk messing partitions which can break MBR.
Your drive actually has 512 byte physical sectors.
That's what I said.
I was just trying to point out the windows installer was probably what put the NTFS partition where it is. I would guess windows wouldn't care if you moved the partition to get rid of the error message, but the windows bootloader might care.
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