Re: neither masking sleep nor trying bios update havebrought joy, any help?

Is there an EFI or legacy boot option in the current BIOS?


On Monday 09/03/2020 at 11:27 am, gregrwm  wrote:
>
>
>
> On Mon, Mar 9, 2020 at 7:55 AM Andrew Lunn <[email protected]> wrote:
>>
>> Yes i had this problem. And a BIOS update did help.
>
>
> good to know.  but this bios iso seems pretty mysterious to me, i 
> downloaded it a second time, they compare equal, neither memdisk nor 
> the bios boot it, and ls doesn't even show anything, tho dir and type 
> did (see OP).
>
> $  wget https://download.lenovo.com/pccbbs/mobiles/j9uj28wd.iso
> --2020-03-09 10:38:05--  
> https://download.lenovo.com/pccbbs/mobiles/j9uj28wd.iso
> Resolving download.lenovo.com (download.lenovo.com)... 23.13.226.129
> Connecting to download.lenovo.com 
> (download.lenovo.com)|23.13.226.129|:443... connected.
> HTTP request sent, awaiting response... 200 OK
> Length: 17149952 (16M) [application/octet-stream]
> Saving to: ?j9uj28wd.iso?
> j9uj28wd.iso                                         
> 100%[=======...=======>]  16.36M  2.94MB/s    in 5.2s
> 2020-03-09 10:38:12 (3.15 MB/s) - ?j9uj28wd.iso? saved 
> [17149952/17149952]
>  $  l *so
> -rw-rw-r-- 1 g greg 17149952 2018-06-26 Tue 01:52:45 
> e540firmwarej9uj28wd.iso
> -rw-rw-r-- 1 g greg 17149952 2018-06-26 Tue 01:52:45 j9uj28wd.iso
> *  0$  cmp *so
>  0$
>>
>> dd if=e540firmwarej9uj28wd.iso of=/dev/sdb
>
>
> seems to have written properly.  both the iso itself, and /dev/sdb, 
> appear to be an iso9660 filesystem, both mount without error, but ls 
> shows no contents:
>
>  #  dd if=e540firmwarej9uj28wd.iso of=/dev/sdb
> 33496+0 records in
> 33496+0 records out
> 17149952 bytes (17 MB, 16 MiB) copied, 5.95615 s, 2.9 MB/s
>  0#  mkdir /mnt/{i,j}
>  0#  mount j9uj28wd.iso /mnt/i
> mount: /mnt/i: WARNING: device write-protected, mounted read-only.
>  0#  mount /dev/sdb /mnt/j
> mount: /mnt/j: WARNING: device write-protected, mounted read-only.
>  0#  dfm
> Filesystem      Type 1M-blocks  Used Available Use% Mounted on
> /dev/sda1       ext4    937872  8855    881308   1% /
> /dev/loop18  iso9660        17    17         0 100% /mnt/i
> /dev/sdb     iso9660        17    17         0 100% /mnt/j
>  0#  ls -la /mnt/?
> /mnt/i:
> total 6
> dr-xr-xr-x 1 root root 2048 Jun 19  2018 .
> drwxr-xr-x 4 root root 4096 Mar  9 10:53 ..
>
> /mnt/j:
> total 6
> dr-xr-xr-x 1 root root 2048 Jun 19  2018 .
> drwxr-xr-x 4 root root 4096 Mar  9 10:53 ..
>  0#
>>
>> and then see if it will boot.
>>
>> FYI: This laptop has a small M2 slot you can insert an SSD into. The
>> official Lenovo documentation says an SSD placed into this slot should
>> only be used for Microsofts way of caching the spinning rust HD, not
>> as an independent disk. But it works fine as a standalone disk. I've
>> had my root filesystem on it all the time i've had the machine. And it
>> gives a significant performance boost.
>
> when i select USB HDD and hit enter, the screen goes blank for a half 
> second, shows no message, and simply shows the boot menu again:
>
> Boot Menu
> =========
> ATAPI CD0: MATSHITADVD-RAM UJ8E2
> ATA HDD0: SAMSUNG HN-M101MBB
> USB HDD: Generic Flash Disk
> PCI LAN: Realtek PXE B03 D00
>
> i'm clueless...
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