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gdisk
[root@Llawyr mnt]# gdisk --help
GPT fdisk (gdisk) version 0.8.8
Problem opening --help for reading! Error is 2.
The specified file does not exist!
[root@Llawyr mnt]# gdisk -l /dev/sdb
GPT fdisk (gdisk) version 0.8.8
Partition table scan:
MBR: MBR only
BSD: not present
APM: not present
GPT: not present
***************************************************************
Found invalid GPT and valid MBR; converting MBR to GPT format
in memory.
***************************************************************
Warning! Secondary partition table overlaps the last partition by
33 blocks!
You will need to delete this partition or resize it in another utility.
Disk /dev/sdb: 15673344 sectors, 7.5 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): 31830E5B-93A9-4CCE-BD90-FD5D8359AFA5
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 15673310
Partitions will be aligned on 2048-sector boundaries
Total free space is 2014 sectors (1007.0 KiB)
Number Start (sector) End (sector) Size Code Name
1 2048 15673343 7.5 GiB 8300 Linux filesystem
[root@Llawyr mnt]# gdisk /dev/sdb
GPT fdisk (gdisk) version 0.8.8
Partition table scan:
MBR: MBR only
BSD: not present
APM: not present
GPT: not present
***************************************************************
Found invalid GPT and valid MBR; converting MBR to GPT format
in memory. THIS OPERATION IS POTENTIALLY DESTRUCTIVE! Exit by
typing 'q' if you don't want to convert your MBR partitions
to GPT format!
***************************************************************
Warning! Secondary partition table overlaps the last partition by
33 blocks!
You will need to delete this partition or resize it in another utility.
Command (? for help): p
Disk /dev/sdb: 15673344 sectors, 7.5 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): 73F98452-9BD6-4406-8859-7000C170E64F
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 15673310
Partitions will be aligned on 2048-sector boundaries
Total free space is 2014 sectors (1007.0 KiB)
Number Start (sector) End (sector) Size Code Name
1 2048 15673343 7.5 GiB 8300 Linux filesystem
Command (? for help): p
Disk /dev/sdb: 15673344 sectors, 7.5 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): A8D6F725-BE37-488B-9F6E-0EEBCE6CA483
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 15673310
Partitions will be aligned on 2048-sector boundaries
Total free space is 2014 sectors (1007.0 KiB)
Number Start (sector) End (sector) Size Code Name
1 2048 15673343 7.5 GiB 8300 Linux filesystem
Command (? for help): d
Using 1
Command (? for help): p
Disk /dev/sdb: 15673344 sectors, 7.5 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): A8D6F725-BE37-488B-9F6E-0EEBCE6CA483
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 15673310
Partitions will be aligned on 2048-sector boundaries
Total free space is 15673277 sectors (7.5 GiB)
Number Start (sector) End (sector) Size Code Name
Command (? for help): n
Partition number (1-128, default 1):
First sector (34-15673310, default = 2048) or {+-}size{KMGTP}:
Last sector (2048-15673310, default = 15673310) or {+-}size{KMGTP}: +1G
Current type is 'Linux filesystem'
Hex code or GUID (L to show codes, Enter = 8300): L
0700 Microsoft basic data 0c01 Microsoft reserved 2700 Windows RE
4100 PowerPC PReP boot 4200 Windows LDM data 4201 Windows LDM metadata
7501 IBM GPFS 7f00 ChromeOS kernel 7f01 ChromeOS root
7f02 ChromeOS reserved 8200 Linux swap 8300 Linux filesystem
8301 Linux reserved 8302 Linux /home 8400 Intel Rapid Start
8e00 Linux LVM a500 FreeBSD disklabel a501 FreeBSD boot
a502 FreeBSD swap a503 FreeBSD UFS a504 FreeBSD ZFS
a505 FreeBSD Vinum/RAID a580 Midnight BSD data a581 Midnight BSD boot
a582 Midnight BSD swap a583 Midnight BSD UFS a584 Midnight BSD ZFS
a585 Midnight BSD Vinum a800 Apple UFS a901 NetBSD swap
a902 NetBSD FFS a903 NetBSD LFS a904 NetBSD concatenated
a905 NetBSD encrypted a906 NetBSD RAID ab00 Apple boot
af00 Apple HFS/HFS+ af01 Apple RAID af02 Apple RAID offline
af03 Apple label af04 AppleTV recovery af05 Apple Core Storage
be00 Solaris boot bf00 Solaris root bf01 Solaris /usr & Mac Z
bf02 Solaris swap bf03 Solaris backup bf04 Solaris /var
bf05 Solaris /home bf06 Solaris alternate se bf07 Solaris Reserved 1
bf08 Solaris Reserved 2 bf09 Solaris Reserved 3 bf0a Solaris Reserved 4
bf0b Solaris Reserved 5 c001 HP-UX data c002 HP-UX service
ea00 Freedesktop $BOOT eb00 Haiku BFS ed00 Sony system partitio
ef00 EFI System ef01 MBR partition scheme ef02 BIOS boot partition
Press the <Enter> key to see more codes: 8300
fb00 VMWare VMFS fb01 VMWare reserved fc00 VMWare kcore crash p
fd00 Linux RAID
Hex code or GUID (L to show codes, Enter = 8300):
Changed type of partition to 'Linux filesystem'
Command (? for help): p
Disk /dev/sdb: 15673344 sectors, 7.5 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): A8D6F725-BE37-488B-9F6E-0EEBCE6CA483
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 15673310
Partitions will be aligned on 2048-sector boundaries
Total free space is 13576125 sectors (6.5 GiB)
Number Start (sector) End (sector) Size Code Name
1 2048 2099199 1024.0 MiB 8300 Linux filesystem
Command (? for help): n
Partition number (2-128, default 2):
First sector (34-15673310, default = 2099200) or {+-}size{KMGTP}:
Last sector (2099200-15673310, default = 15673310) or {+-}size{KMGTP}: +1G
Current type is 'Linux filesystem'
Hex code or GUID (L to show codes, Enter = 8300):
Changed type of partition to 'Linux filesystem'
Command (? for help): n
Partition number (3-128, default 3):
First sector (34-15673310, default = 4196352) or {+-}size{KMGTP}:
Last sector (4196352-15673310, default = 15673310) or {+-}size{KMGTP}: +1G
Current type is 'Linux filesystem'
Hex code or GUID (L to show codes, Enter = 8300):
Changed type of partition to 'Linux filesystem'
Command (? for help): n
Partition number (4-128, default 4):
First sector (34-15673310, default = 6293504) or {+-}size{KMGTP}:
Last sector (6293504-15673310, default = 15673310) or {+-}size{KMGTP}: +1G
Current type is 'Linux filesystem'
Hex code or GUID (L to show codes, Enter = 8300):
Changed type of partition to 'Linux filesystem'
Command (? for help): n
Partition number (5-128, default 5):
First sector (34-15673310, default = 8390656) or {+-}size{KMGTP}:
Last sector (8390656-15673310, default = 15673310) or {+-}size{KMGTP}: +1G
Current type is 'Linux filesystem'
Hex code or GUID (L to show codes, Enter = 8300):
Changed type of partition to 'Linux filesystem'
Command (? for help): p
Disk /dev/sdb: 15673344 sectors, 7.5 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): A8D6F725-BE37-488B-9F6E-0EEBCE6CA483
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 15673310
Partitions will be aligned on 2048-sector boundaries
Total free space is 5187517 sectors (2.5 GiB)
Number Start (sector) End (sector) Size Code Name
1 2048 2099199 1024.0 MiB 8300 Linux filesystem
2 2099200 4196351 1024.0 MiB 8300 Linux filesystem
3 4196352 6293503 1024.0 MiB 8300 Linux filesystem
4 6293504 8390655 1024.0 MiB 8300 Linux filesystem
5 8390656 10487807 1024.0 MiB 8300 Linux filesystem
Command (? for help): i
Partition number (1-5): 4
Partition GUID code: 0FC63DAF-8483-4772-8E79-3D69D8477DE4 (Linux filesystem)
Partition unique GUID: CC687F82-26A4-45F7-8463-B24EAF22861F
First sector: 6293504 (at 3.0 GiB)
Last sector: 8390655 (at 4.0 GiB)
Partition size: 2097152 sectors (1024.0 MiB)
Attribute flags: 0000000000000000
Partition name: 'Linux filesystem'
Command (? for help): l
0700 Microsoft basic data 0c01 Microsoft reserved 2700 Windows RE
4100 PowerPC PReP boot 4200 Windows LDM data 4201 Windows LDM metadata
7501 IBM GPFS 7f00 ChromeOS kernel 7f01 ChromeOS root
7f02 ChromeOS reserved 8200 Linux swap 8300 Linux filesystem
8301 Linux reserved 8302 Linux /home 8400 Intel Rapid Start
8e00 Linux LVM a500 FreeBSD disklabel a501 FreeBSD boot
a502 FreeBSD swap a503 FreeBSD UFS a504 FreeBSD ZFS
a505 FreeBSD Vinum/RAID a580 Midnight BSD data a581 Midnight BSD boot
a582 Midnight BSD swap a583 Midnight BSD UFS a584 Midnight BSD ZFS
a585 Midnight BSD Vinum a800 Apple UFS a901 NetBSD swap
a902 NetBSD FFS a903 NetBSD LFS a904 NetBSD concatenated
a905 NetBSD encrypted a906 NetBSD RAID ab00 Apple boot
af00 Apple HFS/HFS+ af01 Apple RAID af02 Apple RAID offline
af03 Apple label af04 AppleTV recovery af05 Apple Core Storage
be00 Solaris boot bf00 Solaris root bf01 Solaris /usr & Mac Z
bf02 Solaris swap bf03 Solaris backup bf04 Solaris /var
bf05 Solaris /home bf06 Solaris alternate se bf07 Solaris Reserved 1
bf08 Solaris Reserved 2 bf09 Solaris Reserved 3 bf0a Solaris Reserved 4
bf0b Solaris Reserved 5 c001 HP-UX data c002 HP-UX service
ea00 Freedesktop $BOOT eb00 Haiku BFS ed00 Sony system partitio
ef00 EFI System ef01 MBR partition scheme ef02 BIOS boot partition
Press the <Enter> key to see more codes:
fb00 VMWare VMFS fb01 VMWare reserved fc00 VMWare kcore crash p
fd00 Linux RAID
Command (? for help): o
This option deletes all partitions and creates a new protective MBR.
Proceed? (Y/N): y
Command (? for help): p
Disk /dev/sdb: 15673344 sectors, 7.5 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): F2552AB7-74CD-414B-841B-CD0CD6DD6459
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 15673310
Partitions will be aligned on 2048-sector boundaries
Total free space is 15673277 sectors (7.5 GiB)
Number Start (sector) End (sector) Size Code Name
Command (? for help): r
Recovery/transformation command (? for help): ?
b use backup GPT header (rebuilding main)
c load backup partition table from disk (rebuilding main)
d use main GPT header (rebuilding backup)
e load main partition table from disk (rebuilding backup)
f load MBR and build fresh GPT from it
g convert GPT into MBR and exit
h make hybrid MBR
i show detailed information on a partition
l load partition data from a backup file
m return to main menu
o print protective MBR data
p print the partition table
q quit without saving changes
t transform BSD disklabel partition
v verify disk
w write table to disk and exit
x extra functionality (experts only)
? print this menu
Recovery/transformation command (? for help): m
Command (? for help): n
Partition number (1-128, default 1): 3
First sector (34-15673310, default = 2048) or {+-}size{KMGTP}:
Last sector (2048-15673310, default = 15673310) or {+-}size{KMGTP}: +1G
Current type is 'Linux filesystem'
Hex code or GUID (L to show codes, Enter = 8300):
Changed type of partition to 'Linux filesystem'
Command (? for help): n
Partition number (1-128, default 1): 5
First sector (34-15673310, default = 2099200) or {+-}size{KMGTP}:
Last sector (2099200-15673310, default = 15673310) or {+-}size{KMGTP}: +1G
Current type is 'Linux filesystem'
Hex code or GUID (L to show codes, Enter = 8300):
Changed type of partition to 'Linux filesystem'
Command (? for help): n
Partition number (1-128, default 1): 1
First sector (34-15673310, default = 4196352) or {+-}size{KMGTP}:
Last sector (4196352-15673310, default = 15673310) or {+-}size{KMGTP}: +1G
Current type is 'Linux filesystem'
Hex code or GUID (L to show codes, Enter = 8300):
Changed type of partition to 'Linux filesystem'
Command (? for help): p
Disk /dev/sdb: 15673344 sectors, 7.5 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): F2552AB7-74CD-414B-841B-CD0CD6DD6459
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 15673310
Partitions will be aligned on 2048-sector boundaries
Total free space is 9381821 sectors (4.5 GiB)
Number Start (sector) End (sector) Size Code Name
1 4196352 6293503 1024.0 MiB 8300 Linux filesystem
3 2048 2099199 1024.0 MiB 8300 Linux filesystem
5 2099200 4196351 1024.0 MiB 8300 Linux filesystem
Command (? for help): s
You may need to edit /etc/fstab and/or your boot loader configuration!
Command (? for help): p
Disk /dev/sdb: 15673344 sectors, 7.5 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): F2552AB7-74CD-414B-841B-CD0CD6DD6459
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 15673310
Partitions will be aligned on 2048-sector boundaries
Total free space is 9381821 sectors (4.5 GiB)
Number Start (sector) End (sector) Size Code Name
1 2048 2099199 1024.0 MiB 8300 Linux filesystem
2 2099200 4196351 1024.0 MiB 8300 Linux filesystem
3 4196352 6293503 1024.0 MiB 8300 Linux filesystem
Command (? for help): v
No problems found. 9381821 free sectors (4.5 GiB) available in 2
segments, the largest of which is 9379807 (4.5 GiB) in size.
Command (? for help): x
Expert command (? for help): ?
a set attributes
c change partition GUID
d display the sector alignment value
e relocate backup data structures to the end of the disk
g change disk GUID
h recompute CHS values in protective/hybrid MBR
i show detailed information on a partition
l set the sector alignment value
m return to main menu
n create a new protective MBR
o print protective MBR data
p print the partition table
q quit without saving changes
r recovery and transformation options (experts only)
s resize partition table
t transpose two partition table entries
u Replicate partition table on new device
v verify disk
w write table to disk and exit
z zap (destroy) GPT data structures and exit
? print this menu
Expert command (? for help): m
Command (? for help): w
Final checks complete. About to write GPT data. THIS WILL OVERWRITE EXISTING
PARTITIONS!!
Do you want to proceed? (Y/N): y
OK; writing new GUID partition table (GPT) to /dev/sdb.
The operation has completed successfully.
[root@Llawyr mnt]# gdisk -l
GPT fdisk (gdisk) version 0.8.8
Problem opening -l for reading! Error is 2.
The specified file does not exist!
[root@Llawyr mnt]# gdisk -l /dev/sdb
GPT fdisk (gdisk) version 0.8.8
Partition table scan:
MBR: protective
BSD: not present
APM: not present
GPT: present
Found valid GPT with protective MBR; using GPT.
Disk /dev/sdb: 15673344 sectors, 7.5 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): F2552AB7-74CD-414B-841B-CD0CD6DD6459
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 15673310
Partitions will be aligned on 2048-sector boundaries
Total free space is 9381821 sectors (4.5 GiB)
Number Start (sector) End (sector) Size Code Name
1 2048 2099199 1024.0 MiB 8300 Linux filesystem
2 2099200 4196351 1024.0 MiB 8300 Linux filesystem
3 4196352 6293503 1024.0 MiB 8300 Linux filesystem
[root@Llawyr mnt]# mkfs -t ext4 /dev/sdb3
mke2fs 1.42.9 (28-Dec-2013)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
65536 inodes, 262144 blocks
13107 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=268435456
8 block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376
Allocating group tables: done
Writing inode tables: done
Creating journal (8192 blocks): done
Writing superblocks and filesystem accounting information: done
[root@Llawyr mnt]# mount -t auto /dev/sdb3 /mnt
[root@Llawyr mnt]# mount
proc on /proc type proc (rw,relatime)
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
.
.
.
/dev/sda3 on /home type ext4 (rw,noatime,data=ordered)
/dev/sda1 on /boot type ext4 (rw,noatime,data=ordered)
/dev/sdb3 on /mnt type ext4 (rw,relatime,data=ordered)
