Re: What's the device name of my microSD card?
On Sun 21 Apr 2019 at 18:30:28 (+0000), Erik Josefsson wrote:
> On 4/21/19 6:14 PM, Patrick Wiseman wrote:
> > From the command line, 'df' returns free disk space and lists all
> > mounted devices by device name. (One of probably many ways to do
> > it!)
>
> On 4/21/19 6:17 PM, Paul Sutton wrote:
> > if you run lsblk it will list devices connected to the system
>
> Here's the output of both commands, not sure I can figure out which
> one(s) is(are) my usb-Generic_STORAGE_DEVICE (i.e. a microSD put into
> a USB-thingie):
>
> debian@hamlet:~$ df
> Filesystem 1K-blocks Used Available Use% Mounted on
> udev 961108 0 961108 0% /dev
> tmpfs 201708 3260 198448 2% /run
> /dev/mmcblk0p2 61214500 11372112 47335168 20% /
> tmpfs 1008520 50808 957712 6% /dev/shm
> tmpfs 5120 0 5120 0% /run/lock
> tmpfs 1008520 0 1008520 0% /sys/fs/cgroup
> tmpfs 1008520 8 1008512 1% /tmp
> tmpfs 1008520 0 1008520 0% /var/tmp
> /dev/mmcblk0p1 202277 48430 143403 26% /boot
> tmpfs 201704 24 201680 1% /run/user/1000
>
> debian@hamlet:~$ lsblk
> NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
> sda 8:0 1 29.7G 0 disk
> └─sda1 8:1 1 29.7G 0 part
> mmcblk0 179:0 0 59.5G 0 disk
> ├─mmcblk0p1 179:1 0 204M 0 part /boot
> └─mmcblk0p2 179:2 0 59.3G 0 part /
> mmcblk2 179:256 0 13.8G 0 disk
> ├─mmcblk2p1 179:257 0 50M 0 part
> └─mmcblk2p2 179:258 0 13.7G 0 part
> mmcblk2boot0 179:512 0 16M 1 disk
> mmcblk2boot1 179:768 0 16M 1 disk
>
>
> When I'm at it, here's the full ls completion from ls -al /dev/disk/by-id
>
> debian@hamlet:~$ ls -al /dev/disk/by-id/
> mmc-R1J56L_0x7da477d7
> mmc-R1J56L_0x7da477d7-part1
> mmc-R1J56L_0x7da477d7-part2
> mmc-SN64G_0x3376cd3a
> mmc-SN64G_0x3376cd3a-part1
> mmc-SN64G_0x3376cd3a-part2
> usb-Generic_STORAGE_DEVICE_000000001532-0:0
> usb-Generic_STORAGE_DEVICE_000000001532-0:0-part1
I don't understand this output from ls -al as the -l switch should
show a lot more information, viz:
lrwxrwxrwx 1 root root 13 Apr 21 14:52 mmc-SD01G_0x00c2ed5b -> ../../mmcblk0
lrwxrwxrwx 1 root root 15 Apr 21 14:52 mmc-SD01G_0x00c2ed5b-part1 -> ../../mmcblk0p1
which is showing my SD card out of a digital camera.
The first line is the card itself, the second is a single partition
containing a FAT16 filesystem.
The names you're quoting should be symbolic links created by udev, and
they should point to the /dev names assigned by the kernel.
> It's the usb-Generic storage I want to copy the gz image to.
Your instructions would appear to write to the whole device, which is
quite normal. The image itself will contain any partitioning required.
In my case, that would be to /dev/mmcblk0. It looks like you have more
choice, so take care.
Cheers,
David.
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