Format and Mount

Installing and Using OpenWrt
1

Hi,
I have MikroTik RouterBOARD 760iGS. I want to format a new SD Card.

Regards

2

No one's stopping you.

2 Likes
3

Lol. My question is how we can format and mount the sdcard?

4

Less details might help (hint, there is more than one filesystem).

But in short (and equally unspecific), fdisk, mkfs, mount, ..., profit, ... umount, eject.

2 Likes
5

Depends on the filesystem you wish to use. For e.g. ext4 you'd need to install kmod-fs-ext4 and e2fsprogs and you also need to install kmod-sdhci-whatever_is_appropriate_for_your_device. Then format it as usual.

1 Like
6

I can not see any device in /dev/

7 
root@OpenWrt:~# ls /dev/
bus              mtd3ro           mtdblock5        ttyS13
console          mtd4             mtdblock6        ttyS14
cpu_dma_latency  mtd4ro           mtdblock7        ttyS15
full             mtd5             mtdblock8        ttyS2
gpiochip0        mtd5ro           mtdblock9        ttyS3
gpiochip1        mtd6             null             ttyS4
gpiochip2        mtd6ro           port             ttyS5
hwrng            mtd7             ppp              ttyS6
i2c-0            mtd7ro           ptmx             ttyS7
kmsg             mtd8             pts              ttyS8
log              mtd8ro           random           ttyS9
mtd0             mtd9             shm              ubi_ctrl
mtd0ro           mtd9ro           tty              urandom
mtd1             mtdblock0        ttyS0            watchdog
mtd1ro           mtdblock1        ttyS1            watchdog0
mtd2             mtdblock2        ttyS10           zero
mtd2ro           mtdblock3        ttyS11
mtd3             mtdblock4        ttyS12
8

@WereCatf is right, incorrect info removed.

1 Like
9

It's not a USB-device.

10

You need both kmod-sdhci and kmod-sdhci-whatever-is-appropriate-for-your-SoC. It's not enough to just install kmod-sdhci.

11

it was kmod-sdhci-mt7620 to be installed. Now working fine. created partition including swap.

Device         Boot     Start       End   Sectors   Size Id Type
/dev/mmcblk0p1           2048 246417407 246415360 117.5G 83 Linux partition1
/dev/mmcblk0p2      246417408 249737215   3319808   1.6G 83 Linux partition2

I want OpenWrt to use partition(sdcard) storage rather than internal 16MB storage. Is this possible?

12

Kind of, yes: https://openwrt.org/docs/guide-user/additional-software/extroot_configuration

1 Like
13

you were told the same by @WereCatf three days ago already ...

1 Like
14

sorry, I'm new to Linux.

15

guess you're a quick learner, since you fixed it three days later ... :wink:

1 Like
16

Nope. I have purchased a router from India and I'm in Canada right now. The power supply plug is different so order a plug adapter which arrive today. So get late to follow up on the steps.

17

Thanks. Get finally to move overlay to sdcard.

root@OpenWrt:~# df -h
Filesystem                Size      Used Available Use% Mounted on
/dev/root                 2.5M      2.5M         0 100% /rom
tmpfs                   123.1M     72.0K    123.0M   0% /tmp
/dev/mmcblk0p1          115.2G     65.6M    109.2G   0% /overlay
overlayfs:/overlay      115.2G     65.6M    109.2G   0% /
tmpfs                   512.0K         0    512.0K   0% /dev
/dev/mtdblock9           10.9M      2.8M      8.1M  25% /rwm