This utility makes a disk (typically removable disk) bootable on UEFI and non-UEFI systems and on UEFI systems with 32-bit or 64-bit EFI loaders.
This program must be run as root.
Running sudo ./multiboot_create.py with no arguments will show
you the useage - similar to what is below.
Usage: multiboot_create.py dev_path
dev_path: full path to disk (e.g. /dev/sdh}
Following are available disks
Disk path RM Model-Serial-Rev
/dev/nvme0n1 N Samsung_SSD_960_EVO_250GB S3ESNX0HB04042L 1B7QCXE7
/dev/sda N Hitachi_HDS72105 A3EA
/dev/sdb N Hitachi_HUA72302 A840
/dev/sdp Y Store_n_Go_Drive 1100
Upon choosing a disk (example below), you will be presented with a screen like the following:
#./multiboot_create.py /dev/sds
Scanning partitions on /dev/sds
Confirm destroying all partitions and data on /dev/sds
Model: Verbatim Store n Go Drive (scsi)
Disk /dev/sds: 8023MB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:Disk /dev/sds: 15669248 sectors, 7.5 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): F2DFF9D2-62A4-4688-B6A2-C052F4B2B871
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 15669214
Partitions will be aligned on 2048-sector boundaries
Total free space is 2014 sectors (1007.0 KiB)
Removable: True
Disk Model-Rev: Store_n_Go_Drive 1100
Num Start End Size Code Name FS Path
1 2048 43007 21.0MB EF02 BIOSGRUB /dev/sds1
2 43008 206847 83.9MB EF00 EFI vfat /dev/sds2
3 206848 15669214 7917MB 8300 BOOT ext4 /dev/sds3
Enter "YES" to confirm:
If the disk that you chose had a DOS MBR partition table (and not a GPT partition table), you would seel output that resembles the following:
# ./multiboot_create.py /dev/sds
Scanning partitions on /dev/sds
Confirm destroying all partitions and data on /dev/sds
Model: Corsair Voyager (scsi)
Disk /dev/sds: 8020MB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags:***************************************************************
Found invalid GPT and valid MBR; converting MBR to GPT format
in memory.
***************************************************************
Removable: True
Disk Model-Rev: Voyager 1100
Num Start End Size Code Name FS Path
1 62 15663103 8019MB 0700 Microsoft basic data vfat /dev/sds1
Enter "YES" to confirm:
If the disk you chose had an ISO image or in some other way, did NOT have a valid partition table, the output would look like the following:
Scanning partitions on /dev/sds
Confirm erase of ALL data and partitions on device /dev/sds
Enter YES to continue
In all cases, enter YES (full word, all CAPS) to continue, anything
else to abort.
On continuing, output will look like the following:
Scanning partitions on /dev/sds
80+0 records in
80+0 records out
10485760 bytes (10 MB, 10 MiB) copied, 0.00996069 s, 1.1 GB/s
Creating new GPT entries.
GPT data structures destroyed! You may now partition the disk using fdisk or
other utilities.
Creating new GPT entries.
The operation has completed successfully.
Scanning partitions on /dev/sds
Setting name!
partNum is 0
REALLY setting name!
The operation has completed successfully.
Scanning partitions on /dev/sds
Created BIOS partition
Model: Corsair Voyager (scsi)
Disk /dev/sds: 8020MB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:Disk /dev/sds: 15663104 sectors, 7.5 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): A262EA6C-78C0-4EAE-9A5A-406F685D4C6C
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 15663070
Partitions will be aligned on 2048-sector boundaries
Total free space is 15622077 sectors (7.4 GiB)
Removable: True
Disk Model-Rev: Voyager 1100
Num Start End Size Code Name FS Path
1 2048 43007 21.0MB EF02 BIOSGRUB /dev/sds1
None
Setting name!
partNum is 1
REALLY setting name!
The operation has completed successfully.
Scanning partitions on /dev/sds
Created EFI partition
Model: Corsair Voyager (scsi)
Disk /dev/sds: 8020MB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:Disk /dev/sds: 15663104 sectors, 7.5 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): A262EA6C-78C0-4EAE-9A5A-406F685D4C6C
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 15663070
Partitions will be aligned on 2048-sector boundaries
Total free space is 2014 sectors (1007.0 KiB)
Removable: True
Disk Model-Rev: Voyager 1100
Num Start End Size Code Name FS Path
1 2048 43007 21.0MB EF02 BIOSGRUB /dev/sds1
2 43008 15663070 7997MB EF00 EFI /dev/sds2
None
Scanning partitions on /dev/sds
mkfs.fat 3.0.28 (2015-05-16)
Created VFAT FS on /dev/sds2
Model: Corsair Voyager (scsi)
Disk /dev/sds: 8020MB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:Disk /dev/sds: 15663104 sectors, 7.5 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): A262EA6C-78C0-4EAE-9A5A-406F685D4C6C
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 15663070
Partitions will be aligned on 2048-sector boundaries
Total free space is 2014 sectors (1007.0 KiB)
Removable: True
Disk Model-Rev: Voyager 1100
Num Start End Size Code Name FS Path
1 2048 43007 21.0MB EF02 BIOSGRUB /dev/sds1
2 43008 15663070 7997MB EF00 EFI /dev/sds2
Model: Corsair Voyager (scsi)
Disk /dev/sds: 8020MB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:Disk /dev/sds: 15663104 sectors, 7.5 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): A262EA6C-78C0-4EAE-9A5A-406F685D4C6C
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 15663070
Partitions will be aligned on 2048-sector boundaries
Total free space is 2014 sectors (1007.0 KiB)
Removable: True
Disk Model-Rev: Voyager 1100
Num Start End Size Code Name FS Path
1 2048 43007 21.0MB EF02 BIOSGRUB /dev/sds1
2 43008 15663070 7997MB EF00 EFI /dev/sds2
MountedDir: Executing: mount /dev/sds2 /media/tmp_MountedDir_3MNek3
MountedDir: Executing: umount /media/tmp_MountedDir_3MNek3
MountedDir: Executing: mount /dev/sds2 /media/tmp_MountedDir_lGAH9o
MountedDir: Executing: umount /media/tmp_MountedDir_lGAH9o
MountedDir: Executing: mount /dev/sds2 /media/tmp_MountedDir_0JSr6q
Installing for i386-pc platform.
Installation finished. No error reported.
MountedDir: Executing: umount /media/tmp_MountedDir_0JSr6q