[Cerowrt-devel] [LEDE-DEV] lede integration issues remaining from the detrius of cerowrt

[Dirk Neukirchen]

On 11.06.2016 19:44, Dave Taht wrote:
> E) https://github.com/dtaht/ceropackages-3.10/tree/master/utils/gdisk
> 
> The principal problem with fdisk nowadays is that very large (> 2TB, I
> think) devices are not supported by it, and require a GPT capable
> tool. Is there a replacement in lede that handles GPT? If not - this
> is an old gdisk port to openwrt that I used to use.

util-linux w. fdisk/cfdisk etc. should work - i just tested your case in a malta VM w. virtual 3TB qemu disk:

qemu-img create test.disk 3T
Formatting 'test.disk', fmt=raw size=3298534883328

qemu-system-mipsel -M malta -hda lede-malta-le-root.ext4 -hdb test.disk -kernel lede-malta-le-vmlinux.elf -nographic -append "root=/dev/sda console=ttyS0 debug ignore_loglevel loglevel=7 verbose "

root@(none):/# lsblk
[    9.429150] random: nonblocking pool is initialized
NAME      MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
sda         8:0    0   48M  0 disk /
sdb         8:16   0    3T  0 disk 
mtdblock0  31:0    0    1M  1 disk 
mtdblock1  31:1    0  2.9M  0 disk 
mtdblock2  31:2    0  128K  1 disk 

cfdisk /dev/sdb
i create 3 partitions there

root at lede:/# fdisk -l /dev/sdb
Disk /dev/sdb: 3 TiB, 3298534883328 bytes, 6442450944 sectors
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: gpt
Disk identifier: 5F5FA543-8EEB-47B1-A6D0-F0E24A4C544D

Device          Start        End    Sectors  Size Type
/dev/sdb1        2048 2147485695 2147483648    1T Linux filesystem
/dev/sdb2  2147485696 4294969343 2147483648    1T Linux filesystem
/dev/sdb3  4294969344 6442450910 2147481567 1024G Linux filesystem
root at lede:/# lsblk
NAME      MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
sda         8:0    0   48M  0 disk /
sdb         8:16   0    3T  0 disk 
├─sdb1      8:17   0    1T  0 part 
├─sdb2      8:18   0    1T  0 part 
└─sdb3      8:19   0 1024G  0 part