Hi, This is most likely a failing disk. Please post the output of: smartctl -a /dev/sda
or whatever your disk device name is, if not sda Kind Regards James On Sat, 18 Dec 2021 at 16:09, Greg Wooledge <g...@wooledge.org> wrote: > > Today I rebooted my machine for the first time in quite a while, after > the kernel update that was released along with Debian 11.2. > > When it reached the GRUB screen, I pressed Enter, and nothing happened > as far as I could see. I was initially worried that it had stopped > seeing my USB keyboard (a thing that I've experienced with GRUB and > certain USB slots on certain machines in the past). This keyboard > plugged into this same USB slot had worked in previous versions of GRUB > on this machine, though. > > The next thing I observed was that after 5 seconds, it still hadn't > booted, nor had the coundown ("will automatically boot in 5s" or whatever) > advanced. It appeared to be hung. > > I waited a bit longer, and the 5s changed to 4s. It just took a really > long time (like 15+ seconds for each second on the timer). > > Eventually, after a minute or two, the system booted. Everything is > working normally now, post-GRUB. > > Has anyone experienced this, or does anyone have ideas about how to > prevent it happening again? I am not interested in trial and error > for this, because it's far too annoying and disruptive. But if there > are well-known ideas about things I could try (e.g. "grub 2.04 is known > to have bugs on Intel motherboards, revert to 2.03") then I'm game. > > I Googled it, and the only hits I found were for people reporting slow > interactivity with GRUB on high-resolution displays. I don't think my > monitor is high resolution, and this has NEVER been a problem on ANY > previous boot, with this same computer and monitor. I have not changed > any hardware. Only software versions. (Of course, I can't rule out > hardware going bad.) > > Here's the monitor, from xdpyinfo: > > screen #0: > dimensions: 1920x1080 pixels (508x285 millimeters) > resolution: 96x96 dots per inch > > Here's the other hardware: > > unicorn:~$ lspci -nn > 00:00.0 Host bridge [0600]: Intel Corporation Xeon E3-1200 v6/7th Gen Core > Processor Host Bridge/DRAM Registers [8086:591f] (rev 05) > 00:01.0 PCI bridge [0604]: Intel Corporation 6th-10th Gen Core Processor PCIe > Controller (x16) [8086:1901] (rev 05) > 00:02.0 VGA compatible controller [0300]: Intel Corporation HD Graphics 630 > [8086:5912] (rev 04) > 00:14.0 USB controller [0c03]: Intel Corporation 200 Series/Z370 Chipset > Family USB 3.0 xHCI Controller [8086:a2af] > 00:15.0 Signal processing controller [1180]: Intel Corporation 200 Series PCH > Serial IO I2C Controller #0 [8086:a2e0] > 00:15.1 Signal processing controller [1180]: Intel Corporation 200 Series PCH > Serial IO I2C Controller #1 [8086:a2e1] > 00:16.0 Communication controller [0780]: Intel Corporation 200 Series PCH > CSME HECI #1 [8086:a2ba] > 00:17.0 SATA controller [0106]: Intel Corporation 200 Series PCH SATA > controller [AHCI mode] [8086:a282] > 00:1c.0 PCI bridge [0604]: Intel Corporation 200 Series PCH PCI Express Root > Port #5 [8086:a294] (rev f0) > 00:1d.0 PCI bridge [0604]: Intel Corporation 200 Series PCH PCI Express Root > Port #15 [8086:a29e] (rev f0) > 00:1e.0 Signal processing controller [1180]: Intel Corporation 200 > Series/Z370 Chipset Family Serial IO UART Controller #0 [8086:a2a7] > 00:1f.0 ISA bridge [0601]: Intel Corporation 200 Series PCH LPC Controller > (H270) [8086:a2c4] > 00:1f.2 Memory controller [0580]: Intel Corporation 200 Series/Z370 Chipset > Family Power Management Controller [8086:a2a1] > 00:1f.3 Audio device [0403]: Intel Corporation 200 Series PCH HD Audio > [8086:a2f0] > 00:1f.4 SMBus [0c05]: Intel Corporation 200 Series/Z370 Chipset Family SMBus > Controller [8086:a2a3] > 02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. > RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 10) > 03:00.0 Network controller [0280]: Intel Corporation Dual Band Wireless-AC > 3168NGW [Stone Peak] [8086:24fb] (rev 10) > > Here's the GRUB versions: > > unicorn:~$ dpkg -l grub\* | grep -v ^un > Desired=Unknown/Install/Remove/Purge/Hold > | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend > |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) > ||/ Name Version Architecture Description > +++-=====================-============-============-================================================================= > ii grub-common 2.04-20 amd64 GRand Unified Bootloader > (common files) > ii grub-efi-amd64 2.04-20 amd64 GRand Unified Bootloader, > version 2 (EFI-AMD64 version) > ii grub-efi-amd64-bin 2.04-20 amd64 GRand Unified Bootloader, > version 2 (EFI-AMD64 modules) > ii grub-efi-amd64-signed 1+2.04+20 amd64 GRand Unified Bootloader, > version 2 (amd64 UEFI signed by Debian) > ii grub2-common 2.04-20 amd64 GRand Unified Bootloader > (common files for version 2) > > The last time I booted, when everything was normal: > > reboot system boot 5.10.0-10-amd64 Sat Dec 18 06:17 still running > [...] > reboot system boot 5.10.0-9-amd64 Sat Oct 9 11:38 - 10:14 (69+23:36) > > According to /var/log/dpkg.log.5.gz GRUB was updated to version 2.04-20 > back in July, so the current version of GRUB was in place for both boots. > Which I guess makes this either an intermittent problem, or a failing > hardware problem, or it's caused by some package whose name doesn't > begin with "grub". >