Date: Thu, 05 Jul 2018 10:50:56 -0400 From: David Mimms <mentalbarcode@fastest.cc> To: freebsd-current@freebsd.org Subject: Re: EFI booting from external USB pen drive Message-ID: <2965305.K7DBhPY28l@fenix> In-Reply-To: <F2FA85B0-75AB-4F6A-BF79-93D74F00102C@lists.zabbadoz.net> References: <F2FA85B0-75AB-4F6A-BF79-93D74F00102C@lists.zabbadoz.net>
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Bjoern, I had this problem earlier this week while using FreeBSD-12.0-CURRENT-amd64= =2D20180628-r335760-memstick.img on my ThinkPad P50. I had used `dd` to place the img file on a partition (e.g. /dev/sdb1) of th= e USB pen drive and it wouldn't boot properly. After I used `dd` to place the img on the entire device (e.g. /dev/sdb), I = noticed that it had its own partition scheme with three partitions, and tha= t booted just fine. DM On Thursday, July 5, 2018 10:30:51 AM -04 Bjoern A. Zeeb wrote: > Hi, >=20 > while I can boot memstick images just fine (which are created using=20 > makefs/mkimg), doing the same thing using gpart/newfs_msdos -F 12/.. I=20 > am not able to get anything that boots. >=20 > On a Thinkpad (secure boot is off) from the =E2=80=9Cboot device chooser = from=20 > =E2=80=98BIOS=E2=80=99=E2=80=9D I get a quick blank screen and am back at= the chooser. =20 > I=E2=80=99ve tried the gpart =E2=80=9Cthinkpad hack=E2=80=9D as well as t= rying an MBR (why=20 > that should work I don=E2=80=99t know but the memstick one does) and GPT= =20 > options of various kinds. >=20 >=20 > Anyone successfully done this lately? >=20 >=20 > /bz > _______________________________________________ > freebsd-current@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" >=20
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