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Re: NetBSD 9.0_RC1 - installation on GPT (with BIOS boot) not bootable
Hi, replying to myself here... will try this on my X220 this morning:
"Add an option to gpart(8) to location the fake GPT (0xee) entry in the
pMBR in a non-default location
Writing the 0xee entry to the 2nd partition slot, instead of the first,
allows afflicted Lenovo's (x220, t420, t520) to boot GPT in BIOS mode"
On 12/13/19 7:22 AM, Matthias Petermann wrote:
What came to mind: many years ago I installed freebsd on the same
device. That would have been around FreeBSD 9 or 10. Back then,
bsdinstall gave me a warning that there was a BIOS bug for this model
and asked if I wanted to use a fix for it. I did google this and found a
discussion in FreeBSD forum, as well a mailing list post which
appears to summarize the needed change. They are talking about setting
an "active bit" in addition to the "active flag".
I don't understand the context in detail yet, but i will take a look at
the source of gpart in FreeBSD to find out what this "lenovofix" does.
At the moment it looks to me like a problem specific to this machine,
not in general. At least with regards to NetBSD 9.0 RC1, I did not test
with current so far.
In addition to this, do you see some indication of a problem in the
provided information above (gpt show)? I am happy to provide more
details if I know exactly what you need.
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