Linx 7 Tablet

Question

Link: http://www.linx-tablets.com/linx-7.html
Install Notes:
- Enter BIOS by holding Del-key on boot (e.g. for disabling Secure Boot, boot priority, etc.)
- Using Kernel 4.0 Mainline (x64): (config)
fix-rpmb.patch: (credits: https://dev-nell.com/rpmb-emmc-errors-under-linux.html)
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -2264,7 +2264,7 @@
return 0;
for (idx = 0; idx < card->nr_parts; idx++) {
- if (card->part[idx].size) {
+ if (card->part[idx].size && !(card->part[idx].area_type & MMC_BLK_DATA_AREA_RPMB)) {
ret = mmc_blk_alloc_part(card, md,
card->part[idx].part_cfg,
card->part[idx].size >> 9,
- eMMC should be partitioned as follow:
/dev/mmcblk0p1 (type: ef00, size: 100M~, fs: FAT32, mount: /boot/efi)
/dev/mmcblk0p2 (type: 8300, size: 100M~, fs: ext4, mount: /boot) <= Note: tried without, but doesn't boot for some reason
/dev/mmcblk0p3 (type: 8300, size: max, fs: everything you like, mount: /)
- EFI is 32-bit, so you need to install a custom UEFI-bootloader.
Grub2 i386-efi seems to be only one that works. Build a standalone version or download these files and place in /boot (untested).
/boot/grub/grub.cfg
set timeout=5
set debug=video
insmod efi_gop
insmod efi_uga
insmod font
insmod gfxterm
set gfxmode=800x600x32
set gfxpayload=800x600
terminal_output gfxterm
insmod part_gpt
insmod part_msdos
insmod fat
insmod video_bochs
insmod video_cirrus
menuentry "Arch Linux x64" {
# boot partition
set=root --fs-uuid 6e1af556-ca91-4734-9b71-85e46f79187b
linux /vmlinuz-linux-mainline root=UUID=7e80c04f-db4b-4150-bbef-8af8f16f9538 rw acpi=strict reboot=pci,force irqpoll add_efi_memmap intel_iommu=on
initrd /initramfs-linux-mainline.img
- WiFi:
https://github.com/hadess/rtl8723bs
Issues:
- Touchscreen isn't response and a bit laggy, it should be possible to tweak this.
Intel HD performance a bit weak.
Last edited by beta990 (2015-05-14 19:57:51)

Answer 1

tritonas00 wrote:
Thank you for the info.
Maybe using i686 may help on bootlader and boot issues? (because of 32bit efi)
Found the problem! By forcing Grub to use a resolution/mode of 800x600x32 it now boots without any issues!
Don't ask why.. think because there are so many issues with EFI and only Windows get checked for booting (normally).
And no.. not going back to i686! x64 is the way to go!
progandy wrote:
- EFI is 32-bit, so you need to install a custom UEFI-bootloader.
Grub2 i386-efi seems to be only one that works. Build a standalone version or download these files and place in /boot (untested).
Did you try syslinux? The arch package should contain binaries for bios, efi32 and efi64.
Edit: The same goes for grub.
Thanks for the tip!
For now I stick with Grub2-i686-efi, don't want to rebuild again.
Last edited by beta990 (2015-04-03 16:15:02)