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Old 10th June 2019
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Default Power failure and now no boot

This happened before, and I was able to fix it with fsck, but don't remember exactly what I did. Seems like I did post here, before, but can not find the thread or post in any of my posts, so any way, There was a power failure, and now I can not boot.
I did manage to run fsck, on all the other partitions, except c:, some repairs were made, and if my memory is correct, the other time, it was c: that needed repairs, but I can not get it to work.
Code:
parrot# disklabel -h sd0
# /dev/rsd0c:
type: SCSI
disk: SCSI disk
label: HUA721075KLA330 
duid: e0f8625185a016ed
flags:
bytes/sector: 512
sectors/track: 21
tracks/cylinder: 199
sectors/cylinder: 4179
cylinders: 350598
total sectors: 1465149168 # total bytes: 698.6G
boundstart: 32
boundend: 1465149042
drivedata: 0 

16 partitions:
#                size           offset  fstype [fsize bsize   cpg]
  a:             1.0G               32  4.2BSD   2048 16384 12958 
  b:             3.2G          2097184    swap                    
  c:           698.6G                0  unused                    
  d:             4.0G          8802336  4.2BSD   2048 16384 12958 
  e:             9.9G         17190912  4.2BSD   2048 16384 12958 
  f:             2.0G         37941216  4.2BSD   2048 16384 12958 
  g:             1.0G         42135520  4.2BSD   2048 16384 12958 
  h:            10.0G         44232672  4.2BSD   2048 16384 12958 
  i:             2.0G         65204192  4.2BSD   2048 16384 12958 
  j:             6.0G         69398496  4.2BSD   2048 16384 12958 
  k:           500.0G         81981440  4.2BSD   4096 32768 26062 
parrot# fsck -f /dev/rsd0
fsck: /dev/rsd0: unknown special file or file system.
parrot# fsck -f  /dev/rsd0c
fsck: /dev/rsd0c: unknown special file or file system.
parrot#
I am using a usb Drive to boot with, it is sd1. Any way, thanks for any suggestions
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Old 10th June 2019
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The "c" partition is not a filesystem, Garry. It is the special partition of-the-entire-drive.

If you were able to fsck(8) partition a, and then partitions d - k, then a "dirty" filesystem is not your problem.
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Old 10th June 2019
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If I understand correctly you've booted on another OpenBSD installation from a USB drive.

From there you can try to mount your partitions to determine which one is corrupted (if the boot message is not providing enough information). From there you can also backup your data.

fsck should be used on partitions holding a file system: in your case rsd0a and rsd0d to rsd0k.

If nothing of this works, once you have a backup of your data, you can remove your usb drive and boot from bsd.rd (from the boot prompt). Then you can choose to (U)pgrade your system. It's gonna rewrite all the system files leaving your data untouched.
You may have to reapply the system paches with syspatch after rebooting.
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Old 10th June 2019
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Writing at the same time as jggimi, once again.
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Old 10th June 2019
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Heh. We don't know what Garry's problem actually is, because we haven't seen an error message.

Garry:
  • On boot, the rc(8) script will run fsck with -p (preen mode) on any dirty filesystem. Preening does not cause data loss. It recovers integrity from writes-in-progress, such as cleaning up free space, and incomplete writes-in-progress. Partially written data is saved for review in each filesystem's "lost-and-found" directory. Only the superuser has access to these directories.
  • When a preen (-p) fails, due to more complex inconsistencies, rc(8) posts errors to the console, and stops further processing, leaving the OS in single-user mode.
  • Admins can issue fsck(8) commands while in single-user mode, but to get to a clean filesystem, data loss is likely to occur. By default, the admin is prompted to delete the problem files and directories.
  • If the admin answers "No" to any deletion, the filesystem remains dirty, and the admin can then do a backup of the broken bits, mounting the filesystem read-only.
  • Answering "Yes" without care may cause devastating data loss, depending on what is being deleted.
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Old 10th June 2019
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Ok, there is no error message, when it starts to boot, I do get the "boot> " but then it just shuts down, as if I shut off the PC, it (the PC) then starts again, but never get's any further the the boot> , I see normally when I turn the PC on, I did try: boot> boot -s which should boot as single user, and it does not, it just shuts off again.
Quote:
If nothing of this works, once you have a backup of your data, you can remove your usb drive and boot from bsd.rd (from the boot prompt). Then you can choose to (U)pgrade your system. It's gonna rewrite all the system files leaving your data untouched.
I will give this a try,...thanks
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Old 10th June 2019
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From your symptoms, you have boot blocks and the bootloader is running. You likely do not have a bootable default kernel on that root filesystem, sd0a. Mount that partition, and see what files are in that filesystem. Example:# mount /dev/sd0a /mnt then $ ls -lh /mnt

The default kernel file is "bsd". Do you have one? If not, you may have other files that begin with bsd, such as "bsd.sp" - the single-processor GENERIC kernel, or "bsd.booted", the last successful randomized kernel, and perhaps "bsd.rd", the RAMDISK kernel.

You can boot any of these alternative kernels at the boot> prompt, by name.
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Old 10th June 2019
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Thanks again, using "bsd.rd", and "U", (upgrade) worked, it boots as expected now. I all ready had Upgraded, to 6.5, just recently and all my packages, do you think I need to do all the packages again as well, it does not seem like I should need to,...

Yes I do have the "bsd" as well, now, I had not yet read your post, so to be honest, I did not check, there should have been one, at least there was before the power failure,.. never have has this occur before when there was a power failure. I need to get one of those surge protectors, that have a battery and give you a chance to shutdown properly when there is a power failure. Thanks,
everything seems fine now.
==== edited ===
P.S. The device I was using to boot with, is also my back up, and then I have the K: /home partition also copied to another storage device, for extra, I 'rsync' the /home every so often to keep it up to date.
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Old 10th June 2019
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Congratulations on your recovery!!

To check your package database (/var/db/pkg/*) and package files (/usr/local/*) for consistency, use pkg_check(8).
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Old 10th June 2019
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Well done!
You could also make sure your disk is not damaged by using, from ports, smartmontools (or gsmartcontrol if you want a gui).
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Old 11th June 2019
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Thanks again, every one. Everything seems fine now.How ever I really need to do something about protecting my PC from the power outages, they are very common, and sooner or later I might not be so lucky, guess that is another topic though.
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Old 11th June 2019
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Garry,

There shouldn't be a situation where you would "lose" the /bsd kernel file from the root filesystem, barring catastrophic filesystem failure followed by answering "yes" to fsck(8) to force removal of the kernel.

During a normal boot, a new kernel is randomly ordered and then written to the root filesystem. This process, Kernel Address Randomized Link (KARL), is initiated by rc(8) as it completes, and runs in background. The KARL process uses the following command strings to move the file from the staging directory into the root directory, replacing the old kernel. These steps are designed to be power-failure-proof:
Code:
umask 077 && cp bsd /nbsd && mv /nbsd /bsd && \
               sha256 -h /var/db/kernel.SHA256 /bsd
In atomic steps:
  1. The new kernel is copied from the working directory to the root directory as "/nbsd".
  2. The new file is renamed, replacing the old. When on the same filesystem, mv(1) calls rename(2), which guarantees that the "/bsd" file will always exist, even with a crash in the middle of the operation.
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Old 11th June 2019
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Interesting, I mentioned earlier, the power failures here occur pretty often, and yes, this is the first time anything like this occured. Usually, when the power fails, and then when it is back and I turn the PC on again, no big deal, it will boot, and yes it will say something like "Not shutdown properly, or clean, checking file systems", and it will take longer then normal because it runs checks on all the file systems, then boots.
I am not sure that I actually lost the /bsd file, I did not think to look at that when I booted with the USB drive.
I have not installed the smartmontools, as suggested, yet,...however I do have some reasons to think there may be some problems with the HD on this old PC, it is a Dell, :
Code:
OpenBSD 6.5 (GENERIC.MP) #3: Sat Apr 13 14:48:43 MDT 2019
    deraadt@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 3164598272 (3017MB)
avail mem = 3059122176 (2917MB)
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.5 @ 0xf0450 (82 entries)
bios0: vendor Dell Inc. version "A06" date 11/03/2010
bios0: Dell Inc. OptiPlex 780
acpi0 at bios0: rev 2
acpi0: TCPA checksum error
acpi0: sleep states S0 S3 S4 S5
acpi0: tables DSDT FACP SSDT APIC BOOT ASF! MCFG HPET TCPA DMAR SLIC SSDT SSDT SSDT
acpi0: wakeup devices VBTN(S4) PCI0(S5) PCI4(S5) PCI3(S5) PCI1(S5) PCI5(S5) PCI6(S5) USB0(S3) USB1(S3) USB2(S3) USB3(S3) USB4(S3) USB5(S3)
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Intel(R) Core(TM)2 Duo CPU E8400 @ 3.00GHz, 2992.90 MHz, 06-17-0a
cpu0: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,DTES64,MWAIT,DS-CPL,VMX,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,XSAVE,NXE,LONG,LAHF,PERF,SENSOR,MELTDOWN
cpu0: 6MB 64b/line 16-way L2 cache
cpu0: smt 0, core 0, package 0
mtrr: Pentium Pro MTRR support, 7 var ranges, 88 fixed ranges
cpu0: apic clock running at 332MHz
cpu0: mwait min=64, max=64, C-substates=0.2.2.2.2, IBE
cpu1 at mainbus0: apid 1 (application processor)
cpu1: Intel(R) Core(TM)2 Duo CPU E8400 @ 3.00GHz, 2992.50 MHz, 06-17-0a
cpu1: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,DTES64,MWAIT,DS-CPL,VMX,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,XSAVE,NXE,LONG,LAHF,PERF,SENSOR,MELTDOWN
cpu1: 6MB 64b/line 16-way L2 cache
cpu1: smt 0, core 1, package 0
ioapic0 at mainbus0: apid 8 pa 0xfec00000, version 20, 24 pins, remapped
acpimcfg0 at acpi0
acpimcfg0: addr 0xf8000000, bus 0-63
acpihpet0 at acpi0: 14318179 Hz
acpiprt0 at acpi0: bus 4 (PCI4)
acpiprt1 at acpi0: bus 2 (PCI2)
acpiprt2 at acpi0: bus 3 (PCI3)
acpiprt3 at acpi0: bus 1 (PCI1)
acpiprt4 at acpi0: bus -1 (PCI5)
acpiprt5 at acpi0: bus -1 (PCI6)
acpiprt6 at acpi0: bus 0 (PCI0)
acpicpu0 at acpi0: C1(1000@1 mwait.1), PSS
acpicpu1 at acpi0: C1(1000@1 mwait.1), PSS
acpibtn0 at acpi0: VBTN
"*pnp0c14" at acpi0 not configured
acpipci0 at acpi0 PCI0: _OSC failed
acpicmos0 at acpi0
cpu0: Enhanced SpeedStep 2992 MHz: speeds: 3000, 2667, 2333, 2000 MHz
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "Intel Q45 Host" rev 0x03
ppb0 at pci0 dev 1 function 0 "Intel Q45 PCIE" rev 0x03: msi
pci1 at ppb0 bus 1
inteldrm0 at pci0 dev 2 function 0 "Intel Q45 Video" rev 0x03
drm0 at inteldrm0
intagp0 at inteldrm0
agp0 at intagp0: aperture at 0xe0000000, size 0x10000000
inteldrm0: msi
inteldrm0: 1440x900, 32bpp
wsdisplay0 at inteldrm0 mux 1: console (std, vt100 emulation)
wsdisplay0: screen 1-5 added (std, vt100 emulation)
"Intel Q45 Video" rev 0x03 at pci0 dev 2 function 1 not configured
em0 at pci0 dev 25 function 0 "Intel ICH10 D BM LM" rev 0x02: msi, address f0:4d:a2:27:86:49
uhci0 at pci0 dev 26 function 0 "Intel 82801JD USB" rev 0x02: apic 8 int 16
uhci1 at pci0 dev 26 function 1 "Intel 82801JD USB" rev 0x02: apic 8 int 17
uhci2 at pci0 dev 26 function 2 "Intel 82801JD USB" rev 0x02: apic 8 int 22
ehci0 at pci0 dev 26 function 7 "Intel 82801JD USB" rev 0x02: apic 8 int 22
usb0 at ehci0: USB revision 2.0
uhub0 at usb0 configuration 1 interface 0 "Intel EHCI root hub" rev 2.00/1.00 addr 1
azalia0 at pci0 dev 27 function 0 "Intel 82801JD HD Audio" rev 0x02: msi
azalia0: codecs: Analog Devices AD1984A
audio0 at azalia0
ppb1 at pci0 dev 28 function 0 "Intel 82801JD PCIE" rev 0x02: msi
pci2 at ppb1 bus 2
ppb2 at pci0 dev 28 function 1 "Intel 82801JD PCIE" rev 0x02: msi
pci3 at ppb2 bus 3
uhci3 at pci0 dev 29 function 0 "Intel 82801JD USB" rev 0x02: apic 8 int 23
uhci4 at pci0 dev 29 function 1 "Intel 82801JD USB" rev 0x02: apic 8 int 17
uhci5 at pci0 dev 29 function 2 "Intel 82801JD USB" rev 0x02: apic 8 int 18
ehci1 at pci0 dev 29 function 7 "Intel 82801JD USB" rev 0x02: apic 8 int 23
usb1 at ehci1: USB revision 2.0
uhub1 at usb1 configuration 1 interface 0 "Intel EHCI root hub" rev 2.00/1.00 addr 1
ppb3 at pci0 dev 30 function 0 "Intel 82801BA Hub-to-PCI" rev 0xa2
pci4 at ppb3 bus 4
pcib0 at pci0 dev 31 function 0 "Intel 82801JDO LPC" rev 0x02
ahci0 at pci0 dev 31 function 2 "Intel 82801JD AHCI" rev 0x02: msi, AHCI 1.2
ahci0: port 0: 3.0Gb/s
ahci0: port 1: 1.5Gb/s
ahci0: PHY offline on port 2
ahci0: PHY offline on port 3
scsibus1 at ahci0: 32 targets
sd0 at scsibus1 targ 0 lun 0: <ATA, HUA721075KLA330, GK8O> SCSI3 0/direct fixed naa.5000cca215d1cacf
sd0: 715404MB, 512 bytes/sector, 1465149168 sectors
cd0 at scsibus1 targ 1 lun 0: <HL-DT-ST, DVD+-RW GH50N, B104> ATAPI 5/cdrom removable
ichiic0 at pci0 dev 31 function 3 "Intel 82801JD SMBus" rev 0x02: apic 8 int 18
iic0 at ichiic0
spdmem0 at iic0 addr 0x50: 2GB DDR3 SDRAM PC3-10600
spdmem1 at iic0 addr 0x52: 1GB DDR3 SDRAM PC3-10600
usb2 at uhci0: USB revision 1.0
uhub2 at usb2 configuration 1 interface 0 "Intel UHCI root hub" rev 1.00/1.00 addr 1
usb3 at uhci1: USB revision 1.0
uhub3 at usb3 configuration 1 interface 0 "Intel UHCI root hub" rev 1.00/1.00 addr 1
usb4 at uhci2: USB revision 1.0
uhub4 at usb4 configuration 1 interface 0 "Intel UHCI root hub" rev 1.00/1.00 addr 1
usb5 at uhci3: USB revision 1.0
uhub5 at usb5 configuration 1 interface 0 "Intel UHCI root hub" rev 1.00/1.00 addr 1
usb6 at uhci4: USB revision 1.0
uhub6 at usb6 configuration 1 interface 0 "Intel UHCI root hub" rev 1.00/1.00 addr 1
usb7 at uhci5: USB revision 1.0
uhub7 at usb7 configuration 1 interface 0 "Intel UHCI root hub" rev 1.00/1.00 addr 1
isa0 at pcib0
isadma0 at isa0
com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
pckbc0 at isa0 port 0x60/5 irq 1 irq 12
pckbd0 at pckbc0 (kbd slot)
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
lpt0 at isa0 port 0x378/4 irq 7
vmm0 at mainbus0: VMX (using slow L1TF mitigation)
uhidev0 at uhub2 port 2 configuration 1 interface 0 "Primax Electronics USB Optical Mouse" rev 2.00/2.00 addr 2
uhidev0: iclass 3/1
ums0 at uhidev0: 3 buttons, Z and W dir
wsmouse0 at ums0 mux 0
uhidev1 at uhub3 port 2 configuration 1 interface 0 "Dell Dell USB Entry Keyboard" rev 1.10/1.15 addr 2
uhidev1: iclass 3/1
ukbd0 at uhidev1: 8 variable keys, 6 key codes
wskbd1 at ukbd0 mux 1
wskbd1: connecting to wsdisplay0
vscsi0 at root
scsibus2 at vscsi0: 256 targets
softraid0 at root
scsibus3 at softraid0: 256 targets
root on sd0a (e0f8625185a016ed.a) swap on sd0b dump on sd0b
arp info overwritten for 192.168.8.1 by 3c:cd:5d:2b:a7:57 on em0
error: [drm:pid78231:intel_pipe_update_start] *ERROR* Potential atomic update failure on pipe A
error: [drm:pid78231:intel_pipe_update_start] *ERROR* Potential atomic update failure on pipe A
It is not clear to me , should I run the code you show, ? would that help prevent this from happening again in the future ?
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Old 11th June 2019
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Quote:
Originally Posted by GarryR View Post
Thanks again, every one. Everything seems fine now.How ever I really need to do something about protecting my PC from the power outages, they are very common, and sooner or later I might not be so lucky, ...
The battery back-up devices you mentioned are usually called a UPS, Uninterruptible Power Supply. Sounds like a good idea to get one.
Quote:
... guess that is another topic though.
Yes I think so, for further discussion.
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Old 11th June 2019
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Garry, as I mentioned in post #5 above, rc(8) uses fsck -p. When you boot, you see those lovely blue and white kernel messages, and then, immediately following, you see this white text on black, userland message:
Quote:
Automatic boot in progress: starting file system checks.
That's the first message rc(8) sends to you, the admin. It's right there in /etc/rc, followed immediately by a call to the subroutine do_fsck:
Code:
echo "Automatic boot in progress: starting file system checks."
do_fsck
Let's look at that subroutine, with the fsck(8) highlighted.
Each of the actions that follow the fsck() are based on the return code from fsck().
Code:
# Check filesystems, optionally by using a fsck(8) flag.
# Usage: do_fsck [-flag]
do_fsck() {
	fsck -p "$@"
	case $? in
	0)	;;
	2)	exit 1
		;;
	4)	echo "Rebooting..."
		reboot
		echo "Reboot failed; help!"
		exit 1
		;;
	8)	echo "Automatic file system check failed; help!"
		exit 1
		;;
	12)	echo "Boot interrupted."
		exit 1
		;;
	130)	# Interrupt before catcher installed.
		exit 1
		;;
	*)	echo "Unknown error; help!"
		exit 1
		;;
	esac
}
The fsck(8) man page refers us to the fsck_ffs(8) man page, which is specific to the FFS filesystem used by OpenBSD. Within that page, it discusses preen mode in some detail:
Quote:
The kernel takes care that only a restricted class of innocuous file system inconsistencies can happen unless hardware or software failures intervene. These are limited to the following:

Unreferenced inodes
Link counts in inodes too large
Missing blocks in the free map
Blocks in the free map also in files
Counts in the super-block wrong

These are the only inconsistencies that fsck_ffs with the -p option will correct; if it encounters other inconsistencies, it exits with an abnormal return status...
So, the rc() script ends whenever a preen is insufficient. In most cases, the system will be left in single-user mode. Any filesystem that fails a preen check will not be mounted, excepting the root file system, which if it fails will still be available read/only. The admin must run fsck(8) manually, but with due care. These damaged filesystems can usually be mounted read/only, and if so, their contents can be backed up. For very large filesystems, such as your 1/2 TB filesystem, the fsck(8) utility can be used to determine the extent of data loss that will occur through correction -- without executing those corrections -- in order to determine the extent of any partial backups that may be needed.
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Ok, thanks for taking the time to give the additional details.
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