fdisk warning: (Extended) Partition does not start on physical sector boundary











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0
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is there a problem if an Extended Partition does not start on physical sector boundary?




Partition 4 does not start on physical sector boundary.




  ...

 /dev/sda4        639635454 1953521663 1313886210 626.5G  f W95 Ext'd (LBA)

 /dev/sda5        639635456  954208255  314572800   150G  7 HPFS/NTFS/exFAT

 ...



 Partition 4 does not start on physical sector boundary.


See also https://wiki.hetzner.de/index.php/Partition_Alignment:



On an Extended Partition no data will written, so is there any problem that it does not match the physical sector boundary?




Hint:



The Question
fdisk warning message: (Extended) Partition does not start on physical sector boundary
does not ask for the title info and answers only to




Partition table entries are not in disk order







fdisk







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  • I think that out-dated operating systems such as Microsoft's Windows, will have problems. I don't know if they have fixed this bug.
    – ctrl-alt-delor
    2 days ago















up vote
0
down vote

favorite












is there a problem if an Extended Partition does not start on physical sector boundary?




Partition 4 does not start on physical sector boundary.




  ...

 /dev/sda4        639635454 1953521663 1313886210 626.5G  f W95 Ext'd (LBA)

 /dev/sda5        639635456  954208255  314572800   150G  7 HPFS/NTFS/exFAT

 ...



 Partition 4 does not start on physical sector boundary.


See also https://wiki.hetzner.de/index.php/Partition_Alignment:



On an Extended Partition no data will written, so is there any problem that it does not match the physical sector boundary?




Hint:



The Question
fdisk warning message: (Extended) Partition does not start on physical sector boundary
does not ask for the title info and answers only to




Partition table entries are not in disk order







fdisk







share|improve this question









New contributor




User8461 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.




















  • I think that out-dated operating systems such as Microsoft's Windows, will have problems. I don't know if they have fixed this bug.
    – ctrl-alt-delor
    2 days ago













up vote
0
down vote

favorite









up vote
0
down vote

favorite











is there a problem if an Extended Partition does not start on physical sector boundary?




Partition 4 does not start on physical sector boundary.




  ...

 /dev/sda4        639635454 1953521663 1313886210 626.5G  f W95 Ext'd (LBA)

 /dev/sda5        639635456  954208255  314572800   150G  7 HPFS/NTFS/exFAT

 ...



 Partition 4 does not start on physical sector boundary.


See also https://wiki.hetzner.de/index.php/Partition_Alignment:



On an Extended Partition no data will written, so is there any problem that it does not match the physical sector boundary?




Hint:



The Question
fdisk warning message: (Extended) Partition does not start on physical sector boundary
does not ask for the title info and answers only to




Partition table entries are not in disk order







fdisk







share|improve this question









New contributor




User8461 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











is there a problem if an Extended Partition does not start on physical sector boundary?




Partition 4 does not start on physical sector boundary.




  ...

 /dev/sda4        639635454 1953521663 1313886210 626.5G  f W95 Ext'd (LBA)

 /dev/sda5        639635456  954208255  314572800   150G  7 HPFS/NTFS/exFAT

 ...



 Partition 4 does not start on physical sector boundary.


See also https://wiki.hetzner.de/index.php/Partition_Alignment:



On an Extended Partition no data will written, so is there any problem that it does not match the physical sector boundary?




Hint:



The Question
fdisk warning message: (Extended) Partition does not start on physical sector boundary
does not ask for the title info and answers only to




Partition table entries are not in disk order







fdisk




fdisk






share|improve this question









New contributor




User8461 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











share|improve this question









New contributor




User8461 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









share|improve this question




share|improve this question








edited 2 days ago









Rui F Ribeiro

38.2k1475123




38.2k1475123






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asked 2 days ago









User8461

243




243




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User8461 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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New contributor





User8461 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.






User8461 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.












  • I think that out-dated operating systems such as Microsoft's Windows, will have problems. I don't know if they have fixed this bug.
    – ctrl-alt-delor
    2 days ago


















  • I think that out-dated operating systems such as Microsoft's Windows, will have problems. I don't know if they have fixed this bug.
    – ctrl-alt-delor
    2 days ago
















I think that out-dated operating systems such as Microsoft's Windows, will have problems. I don't know if they have fixed this bug.
– ctrl-alt-delor
2 days ago




I think that out-dated operating systems such as Microsoft's Windows, will have problems. I don't know if they have fixed this bug.
– ctrl-alt-delor
2 days ago










1 Answer
1






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oldest

votes

















up vote
2
down vote













It depends on aligning logical blocks and physical sectors in new partition. If disk has 4K logical blocks that not aligned with 4K physical sectors, it can cause visible loss of performance. So fdisk just warns you not to do so.

In most cases no other problems will arise.






share|improve this answer





















  • yes, but does it cause a loss of performance because it is a extended partition?
    – User8461
    2 days ago










  • In an extended partition no data will stored. /dev/sda5 is aligned correctly!
    – User8461
    2 days ago










  • @User8461, fdisk knows nothing about your plans for this partition, fdisk only warns you. If you won't store any data in extended partition it won't affect performance of your system in any way.
    – Ivan Olshansky
    2 days ago











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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

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active

oldest

votes








up vote
2
down vote













It depends on aligning logical blocks and physical sectors in new partition. If disk has 4K logical blocks that not aligned with 4K physical sectors, it can cause visible loss of performance. So fdisk just warns you not to do so.

In most cases no other problems will arise.






share|improve this answer





















  • yes, but does it cause a loss of performance because it is a extended partition?
    – User8461
    2 days ago










  • In an extended partition no data will stored. /dev/sda5 is aligned correctly!
    – User8461
    2 days ago










  • @User8461, fdisk knows nothing about your plans for this partition, fdisk only warns you. If you won't store any data in extended partition it won't affect performance of your system in any way.
    – Ivan Olshansky
    2 days ago















up vote
2
down vote













It depends on aligning logical blocks and physical sectors in new partition. If disk has 4K logical blocks that not aligned with 4K physical sectors, it can cause visible loss of performance. So fdisk just warns you not to do so.

In most cases no other problems will arise.






share|improve this answer





















  • yes, but does it cause a loss of performance because it is a extended partition?
    – User8461
    2 days ago










  • In an extended partition no data will stored. /dev/sda5 is aligned correctly!
    – User8461
    2 days ago










  • @User8461, fdisk knows nothing about your plans for this partition, fdisk only warns you. If you won't store any data in extended partition it won't affect performance of your system in any way.
    – Ivan Olshansky
    2 days ago













up vote
2
down vote










up vote
2
down vote









It depends on aligning logical blocks and physical sectors in new partition. If disk has 4K logical blocks that not aligned with 4K physical sectors, it can cause visible loss of performance. So fdisk just warns you not to do so.

In most cases no other problems will arise.






share|improve this answer












It depends on aligning logical blocks and physical sectors in new partition. If disk has 4K logical blocks that not aligned with 4K physical sectors, it can cause visible loss of performance. So fdisk just warns you not to do so.

In most cases no other problems will arise.







share|improve this answer












share|improve this answer



share|improve this answer










answered 2 days ago









Ivan Olshansky

1314




1314












  • yes, but does it cause a loss of performance because it is a extended partition?
    – User8461
    2 days ago










  • In an extended partition no data will stored. /dev/sda5 is aligned correctly!
    – User8461
    2 days ago










  • @User8461, fdisk knows nothing about your plans for this partition, fdisk only warns you. If you won't store any data in extended partition it won't affect performance of your system in any way.
    – Ivan Olshansky
    2 days ago


















  • yes, but does it cause a loss of performance because it is a extended partition?
    – User8461
    2 days ago










  • In an extended partition no data will stored. /dev/sda5 is aligned correctly!
    – User8461
    2 days ago










  • @User8461, fdisk knows nothing about your plans for this partition, fdisk only warns you. If you won't store any data in extended partition it won't affect performance of your system in any way.
    – Ivan Olshansky
    2 days ago
















yes, but does it cause a loss of performance because it is a extended partition?
– User8461
2 days ago




yes, but does it cause a loss of performance because it is a extended partition?
– User8461
2 days ago












In an extended partition no data will stored. /dev/sda5 is aligned correctly!
– User8461
2 days ago




In an extended partition no data will stored. /dev/sda5 is aligned correctly!
– User8461
2 days ago












@User8461, fdisk knows nothing about your plans for this partition, fdisk only warns you. If you won't store any data in extended partition it won't affect performance of your system in any way.
– Ivan Olshansky
2 days ago




@User8461, fdisk knows nothing about your plans for this partition, fdisk only warns you. If you won't store any data in extended partition it won't affect performance of your system in any way.
– Ivan Olshansky
2 days ago










User8461 is a new contributor. Be nice, and check out our Code of Conduct.










 

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