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 <andrew at lunn.ch> 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... > _______________________________________________ > TCLUG Mailing List - Minneapolis/St. Paul, Minnesota > tclug-list at mn-linux.org > http://mailman.mn-linux.org/mailman/listinfo/tclug-list -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mailman.mn-linux.org/pipermail/tclug-list/attachments/20200309/e6eb0cc3/attachment.htm>