[SOLVED] Different partition sizes by 'df' and 'fdisk', No space left

Feature · 2020-05-11 13:04:53

My storage ran out. I had two partitions of Arch. Using cfdisk. I removed one of them and extended current to maximal size. Now cfdisk and fdisk -l tell me that I have a much space left, but eventually I catch errors "No space left on device" and df -h tells it's really no space left. New partition 67G I made recently, it doesn't affect anything
df -h:

Filesystem      Size  Used Avail Use% Mounted on
dev             3.9G     0  3.9G   0% /dev
run             3.9G  1.1M  3.9G   1% /run
/dev/sda2        85G   73G  7.7G  91% /
tmpfs           3.9G   97M  3.8G   3% /dev/shm
tmpfs           3.9G     0  3.9G   0% /sys/fs/cgroup
tmpfs           4.0G  6.8M  4.0G   1% /tmp
tmpfs           788M   36K  788M   1% /run/user/1000

df -hi:

Filesystem     Inodes IUsed IFree IUse% Mounted on
dev              983K   468  982K    1% /dev
run              985K   765  985K    1% /run
/dev/sda2        5.5M  598K  4.9M   11% /
tmpfs            985K   125  985K    1% /dev/shm
tmpfs            985K    18  985K    1% /sys/fs/cgroup
tmpfs            985K    25  985K    1% /tmp
tmpfs            985K    51  985K    1% /run/user/1000

fdisk -l:

Disk /dev/sda: 465.78 GiB, 500107862016 bytes, 976773168 sectors
Disk model: Hitachi HTS54505
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x097093b2

Device     Boot     Start       End   Sectors   Size Id Type
/dev/sda1  *       104448 210029362 209924915 100.1G  7 HPFS/NTFS/exFAT
/dev/sda2       350472192 976773167 626300976 298.7G 83 Linux

cfdisk:

                                                                    Disk: /dev/sda
                                                Size: 465.78 GiB, 500107862016 bytes, 976773168 sectors
                                                          Label: dos, identifier: 0x097093b2

    Device               Boot                         Start                 End            Sectors            Size          Id Type
    Free space                                         2048              104447             102400             50M
    /dev/sda1            *                           104448           210029362          209924915          100.1G           7 HPFS/NTFS/exFAT
    Free space                                    210030592           350472191          140441600             67G
>>  /dev/sda2                                     350472192           976773167          626300976          298.7G          83 Linux

Last edited by Feature (2020-05-11 14:05:54)

seth · 2020-05-11 13:17:00

"Free space" in cfdisk is space on the disk that's not occupied by any partition.
"Avail" in df is space that the filesystem allows you to address on the partition.

I assume you wanted to grow the sda2 partition by those 67GB (which are *NOT* allocated by any partition right now!)
That's gonna be tricky and essentiall require you to backup the data on sda2, repartition the disk, create a new filesystem and restore the backup onto the bigger disk.
Growing the partition to the other side is much simpler but not an option here.

Alternatively you could just make a new partition for those 67GB and move the OS there (then make sda2 /home and mount into the new root partition because /home is likely what consumes most of the disk)

Awebb · 2020-05-11 13:17:07

How did you extend /dev/sda2? I suspect that the partition has the right size, but the filesystem doesn't know about it.

In addition and for science, post lsblk.

EDIT: seth, check the numbers again, something doesn't add up here, no matter the free space.

Last edited by Awebb (2020-05-11 13:18:34)

seth · 2020-05-11 13:22:34

Ah, sda2 is only at 85GB - well in that case it's gonna be easy indeed.

Feature · 2020-05-11 13:38:26

seth wrote:

"Free space" in cfdisk is space on the disk that's not occupied by any partition.
"Avail" in df is space that the filesystem allows you to address on the partition.
I assume you wanted to grow the sda2 partition by those 67GB (which are *NOT* allocated by any partition right now!)
That's gonna be tricky and essentiall require you to backup the data on sda2, repartition the disk, create a new filesystem and restore the backup onto the bigger disk.
Growing the partition to the other side is much simpler but not an option here.
Alternatively you could just make a new partition for those 67GB and move the OS there (then make sda2 /home and mount into the new root partition because /home is likely what consumes most of the disk)

You can not mention 67G free space, I've made it after I had troubles with /dev/sda2

seth · 2020-05-11 13:40:47

Well, *you* mentioned it ;-)

It's actually what threw me off, but I've already conceded that the problem is just that you forgot to resize the FS:
https://wiki.archlinux.org/index.php/Pa … partitions

Feature · 2020-05-11 13:47:55

Awebb wrote:

How did you extend /dev/sda2? I suspect that the partition has the right size, but the filesystem doesn't know about it.
In addition and for science, post lsblk.
EDIT: seth, check the numbers again, something doesn't add up here, no matter the free space.

I used cfdisk to extend /dev/sda2. If I remember right, a while ago a partition structure was

/dev/sda1    167G   HPFS/NTFS/exFAT
/dev/sda2   ~215G   Linux
/dev/sda3    85G    Linux(current /dev/sda2)

So using cfdisk I freed that ^ /dev/sda2 that was before my current partition. Then I extended them. It's risky, but before I had no troubles with such operation

lsblk

NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda      8:0    0 465.8G  0 disk 
├─sda1   8:1    0 100.1G  0 part 
└─sda2   8:2    0 298.7G  0 part /
sr0     11:0    1  1024M  0 rom

Feature · 2020-05-11 13:59:40

seth wrote:

Well, *you* mentioned it ;-)
It's actually what threw me off, but I've already conceded that the problem is just that you forgot to resize the FS:
https://wiki.archlinux.org/index.php/Pa … partitions

I thought cfdisk should be performed this operation.
Probably, you're right. I think it's not safe to resize fs partition when it's your operation one. I did it via resize2fs and df -h now shows I have 197G avail. I try to populate data to ensure it works. Report in next post whether it working or not

Feature · 2020-05-11 14:03:10

Yes, it works. Thank you Awebb. Thank you Seth. I mark it as solved. I really thought cfdisk will do all the work

Awebb · 2020-05-11 14:11:07

I used to teach some sort of an "IT for dummies" class.

HDD = backyard
partition = trash can
file system = trash can liner

They then spent the rest of the evening debating what the data equivalent of a raccoon might be.

seth · 2020-05-11 14:13:25

Bleach bit.

Arch Linux

#1 2020-05-11 13:04:53

[SOLVED] Different partition sizes by 'df' and 'fdisk', No space left

#2 2020-05-11 13:17:00

Re: [SOLVED] Different partition sizes by 'df' and 'fdisk', No space left

#3 2020-05-11 13:17:07

Re: [SOLVED] Different partition sizes by 'df' and 'fdisk', No space left

#4 2020-05-11 13:22:34

Re: [SOLVED] Different partition sizes by 'df' and 'fdisk', No space left

#5 2020-05-11 13:38:26

Re: [SOLVED] Different partition sizes by 'df' and 'fdisk', No space left

#6 2020-05-11 13:40:47

Re: [SOLVED] Different partition sizes by 'df' and 'fdisk', No space left

#7 2020-05-11 13:47:55

Re: [SOLVED] Different partition sizes by 'df' and 'fdisk', No space left

#8 2020-05-11 13:59:40

Re: [SOLVED] Different partition sizes by 'df' and 'fdisk', No space left

#9 2020-05-11 14:03:10

Re: [SOLVED] Different partition sizes by 'df' and 'fdisk', No space left

#10 2020-05-11 14:11:07

Re: [SOLVED] Different partition sizes by 'df' and 'fdisk', No space left

#11 2020-05-11 14:13:25

Re: [SOLVED] Different partition sizes by 'df' and 'fdisk', No space left

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