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#1 2012-02-17 20:27:31

rjrjr
Member
Registered: 2010-03-22
Posts: 42

Recent kernel upgrade failures: 3.2.5 and 3.2.6

I'm just curious if anyone has any information on why it seems like a lot of people upgrading to Linux 3.2.5 and 3.2.6 have been having a lot of "Unable to find root device" errors.

I just had to chroot and rebuild the udev and mkinitcpio packages and rebuild the kernel because of a borked upgrade. Any info?

Thanks!

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#2 2012-02-17 20:30:43

karol
Archivist
Registered: 2009-05-06
Posts: 25,440

Re: Recent kernel upgrade failures: 3.2.5 and 3.2.6

rjrjr wrote:

I just had to chroot and rebuild the udev and mkinitcpio packages and rebuild the kernel because of a borked upgrade.

I've never built these packages, I just install the stock ones. Do you mean 'install'?
Was the kernel image built successfully the first time?

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#3 2012-02-17 23:22:32

rjrjr
Member
Registered: 2010-03-22
Posts: 42

Re: Recent kernel upgrade failures: 3.2.5 and 3.2.6

That's what I mean, a normal upgrade of the kernel fails, and apparently some very smart people found out that it had something to do with udev and mkinitcpio. (On boot I was just dumped to something called the rescue kernel, and had no idea what to do.) The solution involves using a rescue cd to mount the broken system and then rebuilding those packages in order to recompile the kernel. I was just curious if it was a bug or perhaps some kind of incompatibility between the relevant packages that could be tracked down and solved.

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#4 2012-02-18 00:42:49

Roken
Member
From: South Wales, UK
Registered: 2012-01-16
Posts: 1,251

Re: Recent kernel upgrade failures: 3.2.5 and 3.2.6

See here for a more detailed explanation of the fix steps required: https://bbs.archlinux.org/viewtopic.php … 3#p1059443


Ryzen 5900X 12 core/24 thread - RTX 3090 FE 24 Gb, Asus Prime B450 Plus, 32Gb Corsair DDR4, Cooler Master N300 chassis, 5 HD (1 NvME PCI, 4SSD) + 1 x optical.
Linux user #545703

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#5 2012-02-18 00:51:34

falconindy
Developer
From: New York, USA
Registered: 2009-10-22
Posts: 4,111
Website

Re: Recent kernel upgrade failures: 3.2.5 and 3.2.6

rjrjr wrote:

That's what I mean, a normal upgrade of the kernel fails, and apparently some very smart people found out that it had something to do with udev and mkinitcpio. (On boot I was just dumped to something called the rescue kernel, and had no idea what to do.) The solution involves using a rescue cd to mount the broken system and then rebuilding those packages in order to recompile the kernel. I was just curious if it was a bug or perhaps some kind of incompatibility between the relevant packages that could be tracked down and solved.

You were mislead by some people who were... not as smart? You don't need to rebuild anything. You might need to reinstall udev if you blew away your udev hooks in the recent mkinitcpio/udev upgrade. Generally, when people refer to rebuilding the kernel in a situation like this, they really mean rebuilding their initramfs images (which used to have the unfortunate name of kernel26.img). Literally, after chroot'ing...

# pacman -S udev
# mkinitcpio -p linux

That's it.

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