Hi: I have an Acer Aspire One Cloudbook 14 with an eMMC 32G device instead of a hard disk. Currently I have Windows 10 running on it. However Slackware 14.2 is unable to see the device. For instance blkid does not list it, neither parted sees it. Is there any workaround to this problem? Tiny Core Linux does not see the eMMC either. Perhaps there is a Linux driver for eMMC?

Take a look at your dmesg to see if it has been recognised by the system.

The only way to boot the system is booting from an USB (flash) memory stick. So this is what I did:
(a) In the BIOS boot menu I change UEFI to legacy, only way for the macchine to boot from the stick. Otherwise it will boot from the eMMC "hard disk", i.e. it will boot windows 10.
(b) Once I get the boot prompt I write hugesmp.s noapic. Otherwise there will be a kernel panic.
(c) I write 'root' and press enter.
(d) I cd to /var/log but there is no dmesg there.

EDIT: Sorry. I ran dmesg and got

I've got an HP Stream 11 with a 32GB eMMC. Ubuntu-Mate (pre-) 18.04 (kernel-4.13.0=31-generic) sees the eMMC just fine; lsmod shows the mmc_block module loaded.

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Thanks. Is it not a little overbloated to put in a laptop with only 2GB RAM and 32GB disk space? I've seen the Ubuntu Mate page and they have a version for Raspberry Pi 2 and 3. Would not this version be better off?

I have the same machine and have ran Debian, Fedora, and Arch on it with no issues. Currently I have a Debian Stretch install that has been converted into a q4os install.

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And how about Tiny Core Linux? Does somebody know if it supports eMMC?

EDIT: Yes, it does. I have just booted it from a USB memory stick and could mount a partition from the eMMC.

Ubuntu Mate 18.04 (32-bit) runs as well as any OS on my Acer Aspire One ZG5 (Atom N270 1GB/120GB); it's even better on a system with faster processor and twice the RAM. There's no way the the N3050 in your Cloudbook or the N2840 in my Stream is ever going to be a speed demon. It all comes down to trying enough offerings to find one you like enough to keep.

The question is, does uefi present this device in legacy/csm mode?

In the menu accessed by pressing F2 immediately after turning the laptop on, in the Boot submenu there is an option to choose between UEFI and Legacy modes. When selecting UEFI an option Secure Boot also appears though it is not changeble (it is not really and option). If booting with UEFI set the machine won't boot from the pendrive. It will boot Windows. If Legacy is set instead, Windows won't boot but any Linux image in the pendrive will. Right now I'm trying Arch Linux. It mounts the Windows partition (which is the whole "disk") only read-only, so I am posting in the LQ Arch forum about this problem ("mount: Windows is hibernated, refused to mount").

Make a uefi Fedora 27 usb and try it in UEFI. There are a number of OS's that support UEFI secure boot but in some cases you may have to fool with keys. Real pain that is.

There isn't really anything wrong with moving between uefi and legacy.

Many bios's are not exactly correct. They may have a few steps to go to change out secure boot. They may not allow it. Might have to fool with uefi and it is almost an entire OS to learn.

The Acer Switch 10 I recently fixed requires a root password be set in the UEFI settings for changing certain settings, you may need to do this to disable secure boot.

The Linux kernel has had mmc support for quite some time, probably 8 years +, U3 smart drives use the same technology.

In post 17 of this thread I show how to get information about the card, if there is a problem, it will show in the output of the command below.

One thing at a time. According to Brains some of these devices incorporate a 3.5" hard drive within. So I went to the Acer site and asked for the Acer Aspire One Cloudbook whose model no., SNID and manufacture date are A01-431-C8G8, 60204157323 and 2016/01/15 respectively, printed in the back of the machine. But found no manuals for it.

For if it had one, maybe the OS can use it. I presume a 3.5" hard drive (aka hard disk) can store a lot of data. Should I care in this respect? Reading the manual should be the first step, anyways.

For what is worth: these are the CPU product specifications:
https://ark.intel.com/products/87257...up-to-2_16-GHz. Among them:A label on the machine says precisely 2GB DDR3L memory. Though of course this is RAM, may be ECC is not (nothing to do with eMMC anyway). Incredibly the wikipedia page nowhere makes it explicitly clear whether it is RAM or ROM (volatile or non volatil).

EMMC is the latest SSD technology. I pretty much doubt there is a 3.5" drive inside. I don't think it would fit. Wikipedia doesn't say "what" is ram or rom?

According to the error I quoted, that you quoted in post #3, it has an emmc drive, and it may have the same issue most of these small netbook/lappy/pads with Windows pre-installed.

They typically came with Windows 8.1 with bing in a Wimboot configuration. Wimboot saves drive space by only having pointer files in C drive pointing to the actual files in the compressed image in the recovery drive. This is how to fit an entire OS in a 32GB flash drive and still have room for data.

Most owners made the same mistake and upgraded to Windows 10 which does not do Wimboot, thus all it's files are actual size and end up using up the 32GB drive and plug it up.

The fix I did for the Switch 10 is akin to a power glitch while the drive was being written too, by disabling write reliability and re-enabling write reliability I revived it, write reliability is a feature that protects the drive in the event of a power outage, possibly also when the drive space is maxed out.

When it was disabled, before the fix, it did not show up as a boot device, partitions could not be altered, thus Linux could not be installed, dd could not harm it also as it was being protected till the partition settings were proper.

You appear to have same issue as the Switch 10 I repaired, which is the same issue most everybody has with these things.

You should read my post carefully, and download a Linux live onto USB, boot it, install mmc-utils from source or repositories, not all distros have it in repositories but Ubuntu does, once installed, a few commands and you should have it fixed.
These chips are confusing, after mmc-utils is installed, the output of fdisk -l command shows the four partitions as devices, when you look at /sys/devices you will see them there, in the mmcblk1 are the other three, and you can keep going down into the folders, it appears as an endless loop of devices in devices.

The Dell in the other thread I linked, appears to come with either a 2.5 mechanical drive "or" an emmc. Twas hard to tell based on poor description from manufacturer's specs, just like your Acer saying 32GB ssd drive. If it's only 32GB, it's emmc.