ch-ch-chaaanges
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README.md
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README.md
@ -31,20 +31,6 @@ netcat \
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unzip
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```
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### Total disk wipe
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_This is an excerpt from a comment I made on the original [thread](https://www.reddit.com/r/linuxquestions/comments/g88hhs/need_help_installing_ubuntu/)._
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1. Launch a live usb
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2. Launch a terminal and run “sudo gdisk -l” and find and note down the name of your main disk, use this in step 2
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3. On the assumption your disk is “/dev/nvme0n1” (your screenshots suggest this is the device name) run “sudo gdisk /dev/nvme0n1”
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4. In gdisk, press “x” (expert mode)
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5. In gdisk, press “z” (zap) and respond yes to all questions- this will remove both gpt and mbr partition tables
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6. Quit gdisk
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7. Reboot
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Your disk should now be as blank as is possible without writing zeroes across the whole disk.
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### Logs
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__Please make sure to install [Required packages](#required-packages) before following this process.__
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@ -78,14 +64,80 @@ curl https://seashells.io/p/s5SeWhbp > journalctl.log
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* [journalctl.log](./logs/journalctl.log)
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* [lspci.log](./logs/lspci.log)
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### Confirming hardware Model
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To confirm the machine is an L490, we used output from [dmidecode.log](./logs/dmidecode.log). The pertinent excerpt is here:
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```
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Handle 0x0012, DMI type 1, 27 bytes
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System Information
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Manufacturer: LENOVO
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Product Name: 20Q5S0M600
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Version: ThinkPad L490
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Serial Number: PG01TCJ4
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UUID: 8dd060cc-26f9-11b2-a85c-f3a05d5236c9
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Wake-up Type: Power Switch
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SKU Number: LENOVO_MT_20Q5_BU_SMB_FM_ThinkPad L490
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Family: ThinkPad L490
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```
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### Total disk wipe
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_This is an excerpt from a comment I made on the original [thread](https://www.reddit.com/r/linuxquestions/comments/g88hhs/need_help_installing_ubuntu/)._
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1. Launch a live usb
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2. Launch a terminal and run “sudo gdisk -l” and find and note down the name of your main disk, use this in step 2
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3. On the assumption your disk is “/dev/nvme0n1” (your screenshots suggest this is the device name) run “sudo gdisk /dev/nvme0n1”
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4. In gdisk, press “x” (expert mode)
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5. In gdisk, press “z” (zap) and respond yes to all questions- this will remove both gpt and mbr partition tables
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6. Quit gdisk
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7. Reboot
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Your disk should now be as blank as is possible without writing zeroes across the whole disk.
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### Firmware Updates
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To ensure BIOS firmware was not the issue, we chose to perform a bios update.
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To ensure firmware was not the issue, we chose to attempt a bios + ssd firmware update.
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#### Thinkpad L490 BIOS Updates
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__Please make sure to install [Required packages](#required-packages) before following this process.__
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To confirm what version was currently running we used output from [dmidecode.log](./logs/dmidecode.log). The pertinent excerpt is here:
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```
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Handle 0x0011, DMI type 0, 26 bytes
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BIOS Information
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Vendor: LENOVO
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Version: R0ZET40W (1.18 )
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Release Date: 03/24/2020
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Address: 0xE0000
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Runtime Size: 128 kB
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ROM Size: 32 MB
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Characteristics:
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PCI is supported
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PNP is supported
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BIOS is upgradeable
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BIOS shadowing is allowed
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Boot from CD is supported
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Selectable boot is supported
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EDD is supported
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3.5"/720 kB floppy services are supported (int 13h)
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Print screen service is supported (int 5h)
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8042 keyboard services are supported (int 9h)
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Serial services are supported (int 14h)
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Printer services are supported (int 17h)
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CGA/mono video services are supported (int 10h)
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ACPI is supported
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USB legacy is supported
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BIOS boot specification is supported
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Targeted content distribution is supported
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UEFI is supported
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BIOS Revision: 1.18
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Firmware Revision: 1.15
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```
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The last two lines indicate the firmware versions, prior to an update they were at 1.11 and 1.12 respectively.
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The L490 does not have a CD drive, and yet the only way Lenovo provide to update firmware outside of Windows is a non-USB iso file available (available at time of writing [here](https://download.lenovo.com/pccbbs/mobiles/r0zuj12wd.iso)). Thanks Lenovo.
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_Before blindly following this guide, you should ensure you have downloaded the correct iso for your hardware by entering your serial on lenovo's website, and be VERY careful with the dd command listed below_
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@ -105,7 +157,7 @@ sync
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This successfully updated the BIOS, however did not resolve the issue.
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#### Intel nvme SSD790 firmware Updates
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#### Intel nvme SSD 790 firmware Updates
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_Unfortunately, the same bug that we are trying to fix seemingly causes the linux-based updater to fail. If you have access to another machine with a spare m.2 nvme slot available, however, this step may still be useful in resolving your issue and so will be left here._
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@ -123,3 +175,12 @@ sudo dd if=issdfut_64_3.0.8.iso of=/dev/sdb bs=1m
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# sync disk before unplugging
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sync
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```
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#### NVME quirks kernel flag
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According to this [bug report](https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=910069)
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## Sources
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### Bug report about Intel 790 SSD on linux
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https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=910069
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images/ubuntu_20_04_initial.png
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