Arch Linux

archdom

Member

Registered: 2018-09-12

Posts: 96

[SOLVED]Partition table entries are not in disk order

Hi guys,

when i run fdisk -l i get the following message:

Partition table entries are not in disk order.

Some solved it by running fdisk with the f (fix partitions order) option.
They say that if you don't have references with /dev/nvmeXX but UUID references of the partitions there shouldn't be any problems.

fstab

# Static information about the filesystems.
# See fstab(5) for details.

# <file system> <dir> <type> <options> <dump> <pass>
# /dev/nvme0n1p9
UUID=b177476c-53c0-4a8f-bac2-3955040ce0b3	/         	ext4      	rw,relatime	0 1

# /dev/nvme0n1p7
UUID=B26C-A1E5      	/boot     	vfat      	rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,utf8,errors=remount-ro	0 2

# /dev/nvme0n1p10
UUID=a25a996b-c90a-4597-9fb6-cdaa2ebf6de3	/home     	ext4      	rw,relatime	0 2

# /dev/nvme0n1p8
UUID=3915a4f1-d3de-4ada-964a-09fef8733b5f	none      	swap      	defaults  	0 0

partial grub.cfg

menuentry 'Arch Linux' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-b177476c-53c0-4a8f-bac2-3955040ce0b3' {
	load_video
	set gfxpayload=keep
	insmod gzio
	insmod part_gpt
	insmod fat
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root  B26C-A1E5
	else
	  search --no-floppy --fs-uuid --set=root B26C-A1E5
	fi
	echo	'Loading Linux linux ...'
	linux	/vmlinuz-linux root=UUID=b177476c-53c0-4a8f-bac2-3955040ce0b3 rw  intel_iommu=on video=1920x1080 resume=UUID=3915a4f1-d3de-4ada-964a-09fef8733b5f verbose
	echo	'Loading initial ramdisk ...'
	initrd	/intel-ucode.img /initramfs-linux.img
}

As you can see there are references only to UUIDs.
If they change the name of the various / dev / nvmeXX there should be no problems with booting (grub) and mounting (fstab).
Can you confirm?

nb: that message annoys me

Last edited by archdom (2020-03-06 09:24:00)

frostschutz

Member

Registered: 2013-11-15

Posts: 1,503

Re: [SOLVED]Partition table entries are not in disk order

even though it's just a comment and won't affect functionality, I'd still remove those device names from comment (or update them accordingly). bad documentation can be confusing, and confusion can lead to errors...

also run a grep just in case, as there might be other files (like crypttab, mdadm.conf, smartd.conf, ...) that might also reference to devices by name instead of UUID

in general UUID has exactly this purpose... identify things by content, regardless of device name. only causes problems when you duplicate content (like dd cloning). two devices with same uuid, it can't pick the correct one.

Last edited by frostschutz (2020-03-05 22:51:18)

archdom

Member

Registered: 2018-09-12

Posts: 96

Re: [SOLVED]Partition table entries are not in disk order

it worked! 
I had to regenerate grub.cfg beacuse arch boot was missing via arch-chroot command.
Before run arch-chroot command, i have regenerate fstab file so now i have also correct name of partitions.
Mark as solved

archdom

Member

Registered: 2018-09-12

Posts: 96

Re: [SOLVED]Partition table entries are not in disk order

I want to remind all users that it is a modification that requires manual intervention.
see you next time