How to renumber GPT partitions on an umounted disk?
Solution 1
gdisk
only has the one command line option (-l
), to list the partition table and then quit. All of the other operations are conducted interactively from within gdisk
. See Rod Smith's walkthrough for some more context.
Essentially, though, you want to just use the command # gdisk /dev/sdb
and then, at the prompt, use the s
command to sort the partition entries. From man gdisk
:
s
Sort partition entries. GPT partition numbers need not match the order of partitions on the disk. If you want them to match, you can use this option. Note that some partitioning utilities sort partitions whenever they make changes. Such changes will be reflected in your device filenames, so you may need to edit /etc/fstab if you use this option.
You should also, before you begin, read Rod's page on Repairing GPT Disks, just in case things head south during the operation...
Solution 2
To sort partitions on /dev/sdX
:
#sgdisk -s /dev/sdX
Solution 3
Here a solution with using fdisk
over gdisk
, which I just tested:
To reorder the Linux drive partition numbers for device sdc, all we need to do is open a terminal…
type sudo fdisk /dev/sdc then press “x” to enter Expert Mode press “f” to fix the drive order press “i” to ignore the warning (if it shows) press “w” to write changes to the disk press “r” to leave expert mode *(forgotten by the author)* press “q” to quit fdisk
It’s that simple.
Replace
/dev/sdc
with the name of the device you wish to reorganize partition numbers on.Now check the drive partition naming order by typing
sudo fdisk -l
into a terminal.
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BillV
CEMS specialist. MoBo = Asus M5A88M / CPU = AMD AM3+ FX8350 & Zalman CNPS9900max-r cooler / RAM = 32GB (4x8) ddr3 G.Skill / GFX0 = Asus R7-240 / Disks = (1) 120GB Sandisk SSD, (2) 1TB Seagate HDDs, (1) 2TB WDC HDD / in a Thermaltake Soprano tower along with some other stuff...
Updated on September 18, 2022Comments
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BillV almost 2 years
I tried to sort (renumber) partitions on
/dev/sdb
via terminal, usinggdisk
from the operating system (running on/dev/sda
) and none of thesdb
partitions mounted but the only option I get is[-l]
which lists options the option I'm trying to use.root@arch-bill /home/bill # lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 931.5G 0 disk |-sda1 8:1 0 15.6G 0 part / |-sda2 8:2 0 915.9G 0 part /home `-sda3 8:3 0 2M 0 part sdb 8:16 0 1.8T 0 disk |-sdb1 8:17 0 2M 0 part |-sdb2 8:18 0 4G 0 part |-sdb3 8:19 0 16G 0 part |-sdb4 8:20 0 60G 0 part `-sdb6 8:22 0 1.8T 0 part sr0 11:0 1 1024M 0 rom root@arch-bill /home/bill # blkid /dev/sdb1: PARTUUID="c1073e4b-fc00-4f02-8b81-6f17b8a188c4" /dev/sdb2: LABEL="var" UUID="62921c0a-5d34-464d-8a7a-2ff46ad8f12b" TYPE="ext4" PARTUUID="c350316a-0bd8-4e82-8597-123553977f99" /dev/sdb3: LABEL="rootbkp" UUID="c245c20e-d503-4b61-aaaf-060aae1b21d4" TYPE="ext4" PARTUUID="b1f391db-de37-479c-8b44-ff27f3bd6aa5" /dev/sdb4: LABEL="snapster" UUID="8fef4e0a-efd4-455b-b484-83bd4500161f" TYPE="ext4" PARTUUID="02801cd9-3fe5-4814-9b92-c4c83b86173d" /dev/sdb6: LABEL="homebkp" UUID="51d73ac7-fd96-4ac1-b4f3-4abf6bc4936b" TYPE="ext4" PARTUUID="481ae7d0-228f-4979-8949-befbd498534b" /dev/sda1: UUID="91865df2-0841-42f5-80f3-a5133976e70f" TYPE="ext4" PARTUUID="48dc34cb-e791-4838-b9f2-2fe2b2cced33" /dev/sda2: UUID="e5743a89-13ed-4c96-b39d-78cb6478fb72" TYPE="ext4" PARTUUID="4156cbf2-2a2d-47ae-87cf-99c14cf8f2c2" /dev/sda3: PARTUUID="8669392a-663e-4e15-bc63-a6a5e95c97ad" root@arch-bill /home/bill # gdisk -s /dev/sdb GPT fdisk (gdisk) version 0.8.10 Usage: gdisk [-l] device_file 1 root@arch-bill /home/bill # gdisk -l /dev/sdb :( GPT fdisk (gdisk) version 0.8.10 Partition table scan: MBR: protective BSD: not present APM: not present GPT: present Found valid GPT with protective MBR; using GPT. Disk /dev/sdb: 3907029168 sectors, 1.8 TiB Logical sector size: 512 bytes Disk identifier (GUID): 0645408C-0374-4357-8663-D2A3512E07BD Partition table holds up to 128 entries First usable sector is 34, last usable sector is 3907029134 Partitions will be aligned on 2048-sector boundaries Total free space is 4204653 sectors (2.0 GiB) Number Start (sector) End (sector) Size Code Name 1 2048 6143 2.0 MiB EF02 2 8192 8396799 4.0 GiB 0700 3 8398848 41953279 16.0 GiB 0700 4 41955328 167786495 60.0 GiB 0700 6 167788544 3902834687 1.7 TiB 0700 1 root@arch-bill /home/bill #
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BillV about 10 yearsok, sdb is a backup drive with the partitions listed so its not bootable or written to, i manually mount a partition and then rsync to it when i need to backup sda, so filenames shouldn't be an issue correct?
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jasonwryan about 10 years@BillV That depends on what you are trying to do, but it sounds like a separate question.
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Jeremy Boden about 3 yearsBut why would you modify your partition table, just to make things look tidy?
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Tanishq-Banyal almost 3 years@Jeremy Boden Because correctly ordered partitions prevents confusion and makes it easier to remember which partition is which.