>Synopsis: disklabel -e says "No changes." when boundend parameter is
>changed
>Category: user
>Environment:
System : OpenBSD 6.8
Details : OpenBSD 6.8 (GENERIC.MP) #98: Sun Oct 4 18:13:26 MDT 2020
[email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
Architecture: OpenBSD.amd64
Machine : amd64
>Description:
If I run disklabel -e and edit the "boundend" part of the
disklabel but make no other changes, the program exits with "No
changes." and apparently does not make the change. However if I
also make a change to one of the partitions, it will write my
change.
I am not sure if editing boundend is exactly supported, but the
current behaviour of only writing my change as long as I make
another change doesn't seem desirable.
Some context: I'm doing this because I increased the size of a
vm's disk image, but even after expanding the OpenBSD MBR
partition, disklabel didn't want to use the extra space. (I'm
curious to know if there's a supported way to do this other than
dump/restore or using multiple disk images.)
>How-To-Repeat:
dd if=/dev/zero of=disk.img bs=1M seek=1023 count=1
vnconfig vnd0 disk.img
fdisk -iy vnd0
disklabel -AE vnd0
# w then q
vnconfig -u vnd0
dd if=/dev/zero of=disk.img bs=1M seek=2047 count=1
vnconfig vnd0 disk.img
fdisk -e vnd0
# edit 3
# press enter to accept partition ID [A6]; edit in CHS mode [n];
partition offset [128]
# Answer "*" in response to "Partition size"
# w
# q
disklabel -e vnd0
# Increase the number in the "boundend: ..." line but make no other
# changes.
# Result:
# angel# disklabel -e vnd0
# No changes.
# If I also increase the size of the last partition, disklabel
# recognizes there was a change and writes the new disklabel.
# And just to clean up...
vnconfig -u vnd0
rm disk.img
>Fix:
Make some change to one of the partitions (I increased the size
of the last one).
dmesg:
OpenBSD 6.8 (GENERIC.MP) #98: Sun Oct 4 18:13:26 MDT 2020
[email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 17161912320 (16366MB)
avail mem = 16626753536 (15856MB)
random: good seed from bootblocks
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.4 @ 0xf0100 (59 entries)
bios0: vendor Award Software International, Inc. version "F7" date 11/20/2009
bios0: Gigabyte Technology Co., Ltd. GA-MA790XT-UD4P
acpi0 at bios0: ACPI 1.0
acpi0: sleep states S0 S3 S4 S5
acpi0: tables DSDT FACP SSDT HPET MCFG TAMG APIC
acpi0: wakeup devices PCI0(S5) USB0(S3) USB1(S3) USB2(S3) USB3(S3) USB4(S3)
USB5(S3) USB6(S3) SBAZ(S4) P2P_(S5) PCE2(S4) PCE3(S4) PCE4(S4) PCE5(S4)
PCE6(S4) PCE7(S4) [...]
acpitimer0 at acpi0: 3579545 Hz, 32 bits
acpihpet0 at acpi0: 14318180 Hz
acpimcfg0 at acpi0
acpimcfg0: addr 0xe0000000, bus 0-255
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: AMD Phenom(tm) II X3 710 Processor, 2612.24 MHz, 10-04-02
cpu0:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,MWAIT,CX16,POPCNT,NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG,3DNOW2,3DNOW,LAHF,CMPLEG,SVM,EAPICSP,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,IBS,SKINIT,ITSC
cpu0: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 512KB 64b/line
16-way L2 cache, 6MB 64b/line 48-way L3 cache
cpu0: ITLB 32 4KB entries fully associative, 16 4MB entries fully associative
cpu0: DTLB 48 4KB entries fully associative, 48 4MB entries fully associative
cpu0: AMD erratum 721 detected and fixed
cpu0: smt 0, core 0, package 0
mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges
cpu0: apic clock running at 200MHz
cpu0: mwait min=64, max=64, IBE
cpu1 at mainbus0: apid 1 (application processor)
cpu1: AMD Phenom(tm) II X3 710 Processor, 2611.94 MHz, 10-04-02
cpu1:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,MWAIT,CX16,POPCNT,NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG,3DNOW2,3DNOW,LAHF,CMPLEG,SVM,EAPICSP,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,IBS,SKINIT,ITSC
cpu1: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 512KB 64b/line
16-way L2 cache, 6MB 64b/line 48-way L3 cache
cpu1: ITLB 32 4KB entries fully associative, 16 4MB entries fully associative
cpu1: DTLB 48 4KB entries fully associative, 48 4MB entries fully associative
cpu1: AMD erratum 721 detected and fixed
cpu1: smt 0, core 1, package 0
cpu2 at mainbus0: apid 2 (application processor)
cpu2: AMD Phenom(tm) II X3 710 Processor, 2611.93 MHz, 10-04-02
cpu2:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,MWAIT,CX16,POPCNT,NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG,3DNOW2,3DNOW,LAHF,CMPLEG,SVM,EAPICSP,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,IBS,SKINIT,ITSC
cpu2: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 512KB 64b/line
16-way L2 cache, 6MB 64b/line 48-way L3 cache
cpu2: ITLB 32 4KB entries fully associative, 16 4MB entries fully associative
cpu2: DTLB 48 4KB entries fully associative, 48 4MB entries fully associative
cpu2: AMD erratum 721 detected and fixed
cpu2: smt 0, core 2, package 0
ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 21, 24 pins, remapped
acpiprt0 at acpi0: bus 0 (PCI0)
acpiprt1 at acpi0: bus 4 (P2P_)
acpiprt2 at acpi0: bus 1 (PCE2)
acpiprt3 at acpi0: bus -1 (PCE3)
acpiprt4 at acpi0: bus 2 (PCE4)
acpiprt5 at acpi0: bus -1 (PCE5)
acpiprt6 at acpi0: bus -1 (PCE6)
acpiprt7 at acpi0: bus -1 (PCE7)
acpiprt8 at acpi0: bus -1 (PCE8)
acpiprt9 at acpi0: bus -1 (PCE9)
acpiprt10 at acpi0: bus 3 (PCEA)
acpiprt11 at acpi0: bus -1 (PCEB)
acpiprt12 at acpi0: bus -1 (PCEC)
acpibtn0 at acpi0: PWRB
acpipci0 at acpi0 PCI0
acpicmos0 at acpi0
"PNP0C14" at acpi0 not configured
acpicpu0 at acpi0: C1(@1 halt!), PSS
acpicpu1 at acpi0: C1(@1 halt!), PSS
acpicpu2 at acpi0: C1(@1 halt!), PSS
cpu0: 2612 MHz: speeds: 2600 1900 1400 800 MHz
pci0 at mainbus0 bus 0
0:0:0: mem address conflict 0xe0000000/0x20000000
pchb0 at pci0 dev 0 function 0 "ATI RD780 HT-PCIE" rev 0x00
ppb0 at pci0 dev 2 function 0 "ATI RD790 PCIE" rev 0x00
pci1 at ppb0 bus 1
radeondrm0 at pci1 dev 0 function 0 "ATI Radeon HD 5450" rev 0x00
drm0 at radeondrm0
radeondrm0: msi
azalia0 at pci1 dev 0 function 1 "ATI Radeon HD 5470 Audio" rev 0x00: msi
azalia0: no supported codecs
ppb1 at pci0 dev 4 function 0 "ATI RD790 PCIE" rev 0x00
pci2 at ppb1 bus 2
jmb0 at pci2 dev 0 function 0 "JMicron JMB363 IDE/SATA" rev 0x02
ahci0 at jmb0: apic 2 int 16, AHCI 1.0
scsibus1 at ahci0: 32 targets
pciide0 at jmb0: DMA, channel 0 wired to native-PCI, channel 1 wired to
native-PCI
pciide0: using apic 2 int 16 for native-PCI interrupt
pciide0: channel 0 disabled (no drives)
pciide0: channel 1 disabled (no drives)
ppb2 at pci0 dev 10 function 0 "ATI RD790 PCIE" rev 0x00
pci3 at ppb2 bus 3
re0 at pci3 dev 0 function 0 "Realtek 8168" rev 0x03: RTL8168D/8111D (0x2800),
msi, address 00:24:1d:12:df:b1
rgephy0 at re0 phy 7: RTL8169S/8110S/8211 PHY, rev. 2
ahci1 at pci0 dev 17 function 0 "ATI SBx00 SATA" rev 0x00: apic 2 int 22, AHCI
1.1
scsibus2 at ahci1: 32 targets
ohci0 at pci0 dev 18 function 0 "ATI SB700 USB" rev 0x00: apic 2 int 16,
version 1.0, legacy support
ohci1 at pci0 dev 18 function 1 "ATI SB700 USB" rev 0x00: apic 2 int 16,
version 1.0, legacy support
ehci0 at pci0 dev 18 function 2 "ATI SB700 USB2" rev 0x00: apic 2 int 17
usb0 at ehci0: USB revision 2.0
uhub0 at usb0 configuration 1 interface 0 "ATI EHCI root hub" rev 2.00/1.00
addr 1
ohci2 at pci0 dev 19 function 0 "ATI SB700 USB" rev 0x00: apic 2 int 18,
version 1.0, legacy support
ohci3 at pci0 dev 19 function 1 "ATI SB700 USB" rev 0x00: apic 2 int 18,
version 1.0, legacy support
ehci1 at pci0 dev 19 function 2 "ATI SB700 USB2" rev 0x00: apic 2 int 19
usb1 at ehci1: USB revision 2.0
uhub1 at usb1 configuration 1 interface 0 "ATI EHCI root hub" rev 2.00/1.00
addr 1
piixpm0 at pci0 dev 20 function 0 "ATI SBx00 SMBus" rev 0x3a: SMI
iic0 at piixpm0
spdmem0 at iic0 addr 0x50: 4GB DDR3 SDRAM PC3-10600
spdmem1 at iic0 addr 0x51: 4GB DDR3 SDRAM PC3-10600
spdmem2 at iic0 addr 0x52: 4GB DDR3 SDRAM PC3-10600
spdmem3 at iic0 addr 0x53: 4GB DDR3 SDRAM PC3-10600
pciide1 at pci0 dev 20 function 1 "ATI SB700 IDE" rev 0x00: DMA, channel 0
configured to compatibility, channel 1 configured to compatibility
wd0 at pciide1 channel 1 drive 0: <WDC WDS100T2B0A-00SM50>
wd0: 1-sector PIO, LBA48, 953869MB, 1953525168 sectors
wd0(pciide1:1:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 6
azalia1 at pci0 dev 20 function 2 "ATI SBx00 HD Audio" rev 0x00: apic 2 int 16
azalia1: codecs: Realtek ALC885
audio0 at azalia1
pcib0 at pci0 dev 20 function 3 "ATI SB700 ISA" rev 0x00
ppb3 at pci0 dev 20 function 4 "ATI SB600 PCI" rev 0x00
pci4 at ppb3 bus 4
"TI TSB43AB23 FireWire" rev 0x00 at pci4 dev 14 function 0 not configured
ohci4 at pci0 dev 20 function 5 "ATI SB700 USB" rev 0x00: apic 2 int 18,
version 1.0, legacy support
pchb1 at pci0 dev 24 function 0 "AMD 10h HyperTransport" rev 0x00
pchb2 at pci0 dev 24 function 1 "AMD 10h Address Map" rev 0x00
pchb3 at pci0 dev 24 function 2 "AMD 10h DRAM Cfg" rev 0x00
km0 at pci0 dev 24 function 3 "AMD 10h Misc Cfg" rev 0x00
pchb4 at pci0 dev 24 function 4 "AMD 10h Link Cfg" rev 0x00
usb2 at ohci0: USB revision 1.0
uhub2 at usb2 configuration 1 interface 0 "ATI OHCI root hub" rev 1.00/1.00
addr 1
usb3 at ohci1: USB revision 1.0
uhub3 at usb3 configuration 1 interface 0 "ATI OHCI root hub" rev 1.00/1.00
addr 1
usb4 at ohci2: USB revision 1.0
uhub4 at usb4 configuration 1 interface 0 "ATI OHCI root hub" rev 1.00/1.00
addr 1
usb5 at ohci3: USB revision 1.0
uhub5 at usb5 configuration 1 interface 0 "ATI OHCI 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
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
it0 at isa0 port 0x2e/2: IT8720F rev 5, EC port 0x228
usb6 at ohci4: USB revision 1.0
uhub6 at usb6 configuration 1 interface 0 "ATI OHCI root hub" rev 1.00/1.00
addr 1
vmm0 at mainbus0: SVM/RVI
uhub7 at uhub0 port 1 configuration 1 interface 0 "Genesys Logic USB2.0 Hub"
rev 2.00/77.63 addr 2
uhidev0 at uhub7 port 3 configuration 1 interface 0 "Kensington Kensington
Expert Mouse" rev 1.10/1.00 addr 3
uhidev0: iclass 3/1
ums0 at uhidev0: 4 buttons, Z dir
wsmouse0 at ums0 mux 0
uhidev1 at uhub7 port 4 configuration 1 interface 0 "ZSA Ergodox EZ" rev
1.10/0.01 addr 4
uhidev1: iclass 3/1
ukbd0 at uhidev1: 8 variable keys, 6 key codes
wskbd0 at ukbd0: console keyboard
uhidev2 at uhub7 port 4 configuration 1 interface 1 "ZSA Ergodox EZ" rev
1.10/0.01 addr 4
uhidev2: iclass 3/0, 5 report ids
uhid0 at uhidev2 reportid 3: input=2, output=0, feature=0
uhid1 at uhidev2 reportid 4: input=2, output=0, feature=0
ukbd1 at uhidev2 reportid 5: 128 variable keys, 0 key codes
wskbd1 at ukbd1 mux 1
vscsi0 at root
scsibus3 at vscsi0: 256 targets
softraid0 at root
scsibus4 at softraid0: 256 targets
sd0 at scsibus4 targ 1 lun 0: <OPENBSD, SR CRYPTO, 006>
sd0: 391167MB, 512 bytes/sector, 801111803 sectors
root on sd0a (676fc55ae679a444.a) swap on sd0b dump on sd0b
initializing kernel modesetting (CEDAR 0x1002:0x68F9 0x1545:0x5450 0x00).
radeondrm0: 2560x1440, 32bpp
wsdisplay0 at radeondrm0 mux 1: console (std, vt100 emulation), using wskbd0
wskbd1: connecting to wsdisplay0
wsdisplay0: screen 1-5 added (std, vt100 emulation)
usbdevs:
Controller /dev/usb0:
addr 01: 1002:0000 ATI, EHCI root hub
high speed, self powered, config 1, rev 1.00
driver: uhub0
addr 02: 05e3:0608 Genesys Logic, USB2.0 Hub
high speed, self powered, config 1, rev 77.63
driver: uhub7
addr 03: 047d:1020 Kensington, Kensington Expert Mouse
low speed, power 100 mA, config 1, rev 1.00
driver: uhidev0
addr 04: feed:1307 ZSA, Ergodox EZ
full speed, power 500 mA, config 1, rev 0.01, iSerial 0
driver: uhidev1
driver: uhidev2
Controller /dev/usb1:
addr 01: 1002:0000 ATI, EHCI root hub
high speed, self powered, config 1, rev 1.00
driver: uhub1
Controller /dev/usb2:
addr 01: 1002:0000 ATI, OHCI root hub
full speed, self powered, config 1, rev 1.00
driver: uhub2
Controller /dev/usb3:
addr 01: 1002:0000 ATI, OHCI root hub
full speed, self powered, config 1, rev 1.00
driver: uhub3
Controller /dev/usb4:
addr 01: 1002:0000 ATI, OHCI root hub
full speed, self powered, config 1, rev 1.00
driver: uhub4
Controller /dev/usb5:
addr 01: 1002:0000 ATI, OHCI root hub
full speed, self powered, config 1, rev 1.00
driver: uhub5
Controller /dev/usb6:
addr 01: 1002:0000 ATI, OHCI root hub
full speed, self powered, config 1, rev 1.00
driver: uhub6
