How to check if partition is Extended/Primary in Linux
0
Below is the info I get using (g)parted or fdisk command.
Device Boot Start End Sectors Size Id Type
/dev/sda1 * 2048 196265983 196263936 93.6G 83 Linux
/dev/sda2 196268030 229468159 33200130 15.9G 5 Extended
/dev/sda5 196268032 229468159 33200128 15.9G 82 Linux swap / Solaris
Is there a system call or filesystem(/sys/block, etc) based info available to know if a partition is extended/primary and the hierarchy sda5 under sda2, etc?
If yes, is there a way to know if what logical partitions lie under the selected extended partition?
I want to avoid parsing output of command(s). I have tried to read the code of fdisk but it is too complex for me to understand it.
filesystems partition fdisk gparted partition-table
asked 1 hour ago
Nilesh ChateNilesh Chate
1
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0
Below is the info I get using (g)parted or fdisk command.
Device Boot Start End Sectors Size Id Type
/dev/sda1 * 2048 196265983 196263936 93.6G 83 Linux
/dev/sda2 196268030 229468159 33200130 15.9G 5 Extended
/dev/sda5 196268032 229468159 33200128 15.9G 82 Linux swap / Solaris
Is there a system call or filesystem(/sys/block, etc) based info available to know if a partition is extended/primary and the hierarchy sda5 under sda2, etc?
If yes, is there a way to know if what logical partitions lie under the selected extended partition?
I want to avoid parsing output of command(s). I have tried to read the code of fdisk but it is too complex for me to understand it.
filesystems partition fdisk gparted partition-table
asked 1 hour ago
Nilesh ChateNilesh Chate
1
New contributor
Nilesh Chate is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
First thought is "why do you want to know?"
– icarus
1 hour ago
I have a client who needs to know the disk partition hierarchy of his servers. The servers would be with minimal OS, os no fdisk/parted will be available
– Nilesh Chate
1 hour ago
Related: unix.stackexchange.com/q/136187/117549
– Jeff Schaller
49 mins ago
Thanks, so if partition size is 1 block in/proc/partitions, that partition is extended but how about the hierarchy ? how to find out which partitions come under this extended partition
– Nilesh Chate
46 mins ago
/sys/block/sda/sda1has the filesstartandsize. By looking at those files for all the partitions you can build a map of the partition offsets. From that you can figure out which logical partition is inside which extended partition.
– Emmanuel Rosa
38 mins ago
|
show 1 more comment
0
0
0
Below is the info I get using (g)parted or fdisk command.
Device Boot Start End Sectors Size Id Type
/dev/sda1 * 2048 196265983 196263936 93.6G 83 Linux
/dev/sda2 196268030 229468159 33200130 15.9G 5 Extended
/dev/sda5 196268032 229468159 33200128 15.9G 82 Linux swap / Solaris
Is there a system call or filesystem(/sys/block, etc) based info available to know if a partition is extended/primary and the hierarchy sda5 under sda2, etc?
If yes, is there a way to know if what logical partitions lie under the selected extended partition?
I want to avoid parsing output of command(s). I have tried to read the code of fdisk but it is too complex for me to understand it.
filesystems partition fdisk gparted partition-table
asked 1 hour ago
Nilesh ChateNilesh Chate
1
New contributor
Nilesh Chate is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Below is the info I get using (g)parted or fdisk command.
Device Boot Start End Sectors Size Id Type
/dev/sda1 * 2048 196265983 196263936 93.6G 83 Linux
/dev/sda2 196268030 229468159 33200130 15.9G 5 Extended
/dev/sda5 196268032 229468159 33200128 15.9G 82 Linux swap / Solaris
Is there a system call or filesystem(/sys/block, etc) based info available to know if a partition is extended/primary and the hierarchy sda5 under sda2, etc?
If yes, is there a way to know if what logical partitions lie under the selected extended partition?
I want to avoid parsing output of command(s). I have tried to read the code of fdisk but it is too complex for me to understand it.
filesystems partition fdisk gparted partition-table
filesystems partition fdisk gparted partition-table
asked 1 hour ago
Nilesh ChateNilesh Chate
1
New contributor
Nilesh Chate is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 1 hour ago
Nilesh ChateNilesh Chate
1
New contributor
Nilesh Chate is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 1 hour ago
Nilesh ChateNilesh Chate
1
New contributor
Nilesh Chate is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 1 hour ago
Nilesh ChateNilesh Chate
1
asked 1 hour ago
Nilesh ChateNilesh Chate
1
1
New contributor
Nilesh Chate is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Nilesh Chate is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Nilesh Chate is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
First thought is "why do you want to know?"
– icarus
1 hour ago
I have a client who needs to know the disk partition hierarchy of his servers. The servers would be with minimal OS, os no fdisk/parted will be available
– Nilesh Chate
1 hour ago
Related: unix.stackexchange.com/q/136187/117549
– Jeff Schaller
49 mins ago
Thanks, so if partition size is 1 block in/proc/partitions, that partition is extended but how about the hierarchy ? how to find out which partitions come under this extended partition
– Nilesh Chate
46 mins ago
/sys/block/sda/sda1has the filesstartandsize. By looking at those files for all the partitions you can build a map of the partition offsets. From that you can figure out which logical partition is inside which extended partition.
– Emmanuel Rosa
38 mins ago
|
show 1 more comment
First thought is "why do you want to know?"
– icarus
1 hour ago
I have a client who needs to know the disk partition hierarchy of his servers. The servers would be with minimal OS, os no fdisk/parted will be available
– Nilesh Chate
1 hour ago
Related: unix.stackexchange.com/q/136187/117549
– Jeff Schaller
49 mins ago
Thanks, so if partition size is 1 block in/proc/partitions, that partition is extended but how about the hierarchy ? how to find out which partitions come under this extended partition
– Nilesh Chate
46 mins ago
/sys/block/sda/sda1has the filesstartandsize. By looking at those files for all the partitions you can build a map of the partition offsets. From that you can figure out which logical partition is inside which extended partition.
– Emmanuel Rosa
38 mins ago
First thought is "why do you want to know?"
– icarus
1 hour ago
First thought is "why do you want to know?"
– icarus
1 hour ago
I have a client who needs to know the disk partition hierarchy of his servers. The servers would be with minimal OS, os no fdisk/parted will be available
– Nilesh Chate
1 hour ago
I have a client who needs to know the disk partition hierarchy of his servers. The servers would be with minimal OS, os no fdisk/parted will be available
– Nilesh Chate
1 hour ago
Related: unix.stackexchange.com/q/136187/117549
– Jeff Schaller
49 mins ago
Related: unix.stackexchange.com/q/136187/117549
– Jeff Schaller
49 mins ago
Thanks, so if partition size is 1 block in
/proc/partitions, that partition is extended but how about the hierarchy ? how to find out which partitions come under this extended partition– Nilesh Chate
46 mins ago
Thanks, so if partition size is 1 block in
/proc/partitions, that partition is extended but how about the hierarchy ? how to find out which partitions come under this extended partition– Nilesh Chate
46 mins ago
/sys/block/sda/sda1 has the files start and size. By looking at those files for all the partitions you can build a map of the partition offsets. From that you can figure out which logical partition is inside which extended partition.– Emmanuel Rosa
38 mins ago
/sys/block/sda/sda1 has the files start and size. By looking at those files for all the partitions you can build a map of the partition offsets. From that you can figure out which logical partition is inside which extended partition.– Emmanuel Rosa
38 mins ago
|
show 1 more comment
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First thought is "why do you want to know?"
– icarus
1 hour ago
I have a client who needs to know the disk partition hierarchy of his servers. The servers would be with minimal OS, os no fdisk/parted will be available
– Nilesh Chate
1 hour ago
Related: unix.stackexchange.com/q/136187/117549
– Jeff Schaller
49 mins ago
Thanks, so if partition size is 1 block in
/proc/partitions, that partition is extended but how about the hierarchy ? how to find out which partitions come under this extended partition– Nilesh Chate
46 mins ago
/sys/block/sda/sda1has the filesstartandsize. By looking at those files for all the partitions you can build a map of the partition offsets. From that you can figure out which logical partition is inside which extended partition.– Emmanuel Rosa
38 mins ago