There's an interesting discussion on the Volla's github about deliberately disabled kernel crypto interface in Volla kernel.

I don't quite understand the reason why theese people advertize their commercial product as a (not literally) privacy and security enhanced and then turning off the crypto support in their custom built kernel.

Did I miss something?

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Hi,

cryptsetup is unusable because of lack of userspace cipher interface modules (algif_*).
Kernel cipher support is sufficient:

phablet@ubuntu-phablet:~$ grep name.*aes /proc/crypto|cut -d : -f 2
 cmac(aes)
 ecb(aes)
 cbc(aes)
 aes
 xts(aes)
 ctr(aes)
 cbc(aes)
 ecb(aes)
 __xts-aes-ce
 __ctr-aes-ce
 __cbc-aes-ce
 __ecb-aes-ce
 aes

but any operation fails with the same reason: "Userspace crypto wrapper cannot use cipher_name"

# Userspace crypto wrapper cannot use aes-xts-plain64 (-95).

Even the benchmarking fails:

phablet@ubuntu-phablet:~$ cryptsetup benchmark
# Tests are approximate using memory only (no storage IO).
PBKDF2-sha1       297890 iterations per second
PBKDF2-sha256     185129 iterations per second
PBKDF2-sha512     168907 iterations per second
PBKDF2-ripemd160  263196 iterations per second
PBKDF2-whirlpool   61134 iterations per second
Required kernel crypto interface not available.
Ensure you have algif_skcipher kernel module loaded.

Suggesting some specific Volla kernel config nuances...

UPD: Also APN list is not empty and contains correct data for my carrier (Vodafone CZ)

Hi everyone,

have bought a rather fresh A0001, ubports installed smoothly. But when inserted my SIM card just an empty triangle appeared in the status bar, no cellular connection whatsoever. Manual search shows carrier list, selecting any of them (or auto) makes no difference. Tried different SIMs.
Doesn't help moving into the DEV channel.

ofonod just throws several messages into syslog on the SIM card insertion:

Sep  2 12:02:24 ubuntu-phablet ofonod[1701]: Querying PIN authentication state failed
Sep  2 12:02:24 ubuntu-phablet ofonod[1701]: message repeated 3 times: [ Querying PIN authentication state failed]
Sep  2 12:02:25 ubuntu-phablet ofonod[1701]: Requested file structure differs from SIM: 6fb7
Sep  2 12:02:25 ubuntu-phablet ofonod[1701]: ril_file_info_cb: Reply failure: GENERIC_FAILURE
Sep  2 12:02:25 ubuntu-phablet ofonod[1701]: message repeated 2 times: [ ril_file_info_cb: Reply failure: GENERIC_FAILURE]
Sep  2 12:02:25 ubuntu-phablet ofonod[1701]: SMS History Probe for modem: 0xdcad00
Sep  2 12:02:25 ubuntu-phablet ofonod[1701]: Network time: Registered inteface org.ofono.NetworkTime, path /ril_0
Sep  2 12:02:25 ubuntu-phablet NetworkManager[1800]: <info>  [1599040945.9962] (/ril_0): found new ConnectionManager interface
Sep  2 12:02:26 ubuntu-phablet ofonod[1701]: Unable to read waiting messages numbers from SIM
Sep  2 12:02:26 ubuntu-phablet ofonod[1701]: Unable to read mailbox identifies from SIM

Please help!