Parse network related variables in cmdline options and add hostname fallback function #3
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Fail only if tcrypt insmod failed.
When dropped to emergency shell, for example, use rd.break=pre-pivot,
the PS1 won't correctly show current directory we're in:
pre-pivot:/# cd /sysroot/
pre-pivot:/#
(still shows "/")
Let's take a look at PS1 variable:
(I'm adding prefix/suffix 'x' to make it clear):
pre-pivot:/# echo x${PS1}x
xpre-pivot:/# x
(PS1 isn't dynamic)
Regarding the current dracut code, it should be:
pre-pivot:/# cd /sysroot/etc
pre-pivot:/sysroot/etc#
With this patch:
pre-pivot:/# echo x${PS1}x
xpre-pivot:${PWD}# x
(Now PS1 is dynamic, it will show the directory correctly)
I tested for both normal boot and kdump boot.
Signed-off-by: WANG Chao <chaowang@redhat.com>
zfcp_cfdc will go away in the future tt
* Provides net_add_parse_vars function to install net_parse_vars hook when an interface comes online * Provides net_parse_vars function to search and replace network related variables in a string
… executable of this name
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Can you please rebase and add documentation, what can be accomplished with this patch? |
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We dismantled the system this was intended for a long time ago. |
johannbg
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dracut-install
pvalena
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to pvalena/dracut
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Feb 15, 2022
…ctions ci: drop the hardcoded repo owner name
runsisi
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to runsisi/dracut
that referenced
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Aug 6, 2022
in install_dependent_modules we use &path[kerneldirlen] as the key for inserting, let's do the same for checking. otherwise installing kernel module has circular dependency from a custom kernel module directory will cause infinite recursion and segfault. $ grep ipmi kbuilt/lib/modules/5.10.121/modules.dep kernel/drivers/char/ipmi/ipmi_msghandler.ko: kernel/drivers/char/ipmi/ipmi_devintf.ko: kernel/drivers/char/ipmi/ipmi_msghandler.ko $ grep ipmi kbuilt/lib/modules/5.10.121/modules.softdep softdep ipmi_msghandler post: ipmi_devintf $ ./dracut-install -D /tmp --kerneldir ~/working/kernel/linux-5.10.121/kbuilt/lib/modules/5.10.121 -m ipmi-devintf Segmentation fault (core dumped) (gdb) b install_dependent_modules Breakpoint 1 at 0x7db0: file src/install/dracut-install.c, line 1513. (gdb) bt #0 install_dependent_modules (modlist=0x0) at src/install/dracut-install.c:1513 dracutdevs#1 0x000055555555c027 in install_dependent_modules (modlist=modlist@entry=0x555555579e90) at src/install/dracut-install.c:1553 dracutdevs#2 0x000055555555bf1c in install_dependent_modules (modlist=0x5555555799d0) at src/install/dracut-install.c:1548 dracutdevs#3 0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x55555557a3f0) at src/install/dracut-install.c:1554 dracutdevs#4 0x000055555555bf1c in install_dependent_modules (modlist=0x555555579d60) at src/install/dracut-install.c:1548 dracutdevs#5 0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x55555557b170) at src/install/dracut-install.c:1554 dracutdevs#6 0x000055555555bf1c in install_dependent_modules (modlist=0x55555557a0f0) at src/install/dracut-install.c:1548 dracutdevs#7 0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x555555575320) at src/install/dracut-install.c:1554 dracutdevs#8 0x000055555555bf1c in install_dependent_modules (modlist=0x55555557ab30) at src/install/dracut-install.c:1548 dracutdevs#9 0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x55555557dd60) at src/install/dracut-install.c:1554 dracutdevs#10 0x000055555555bf1c in install_dependent_modules (modlist=0x55555557b640) at src/install/dracut-install.c:1548 dracutdevs#11 0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x55555557e0f0) at src/install/dracut-install.c:1554 dracutdevs#12 0x000055555555bf1c in install_dependent_modules (modlist=0x55555557b9d0) at src/install/dracut-install.c:1548 dracutdevs#13 0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x555555574340) at src/install/dracut-install.c:1554 dracutdevs#14 0x000055555555bf1c in install_dependent_modules (modlist=0x55555557cf70) at src/install/dracut-install.c:1548 dracutdevs#15 0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x5555555768d0) at src/install/dracut-install.c:1554 dracutdevs#16 0x000055555555bf1c in install_dependent_modules (modlist=0x55555557d750) at src/install/dracut-install.c:1548 dracutdevs#17 0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x55555557e700) at src/install/dracut-install.c:1554 dracutdevs#18 0x000055555555bf1c in install_dependent_modules (modlist=0x55555557de90) at src/install/dracut-install.c:1548 dracutdevs#19 0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x555555581c90) at src/install/dracut-install.c:1554 dracutdevs#20 0x000055555555bf1c in install_dependent_modules (modlist=0x555555571e60) at src/install/dracut-install.c:1548 dracutdevs#21 0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x55555556b620) at src/install/dracut-install.c:1554 dracutdevs#22 0x000055555555bf1c in install_dependent_modules (modlist=0x555555583000) at src/install/dracut-install.c:1548 dracutdevs#23 0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x55555556b640) at src/install/dracut-install.c:1554 dracutdevs#24 0x000055555555bf1c in install_dependent_modules (modlist=0x555555571b40) at src/install/dracut-install.c:1548 dracutdevs#25 0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x555555574100) at src/install/dracut-install.c:1554 dracutdevs#26 0x000055555555c4b0 in install_module (mod=mod@entry=0x555555573bc0) at src/install/dracut-install.c:1617 dracutdevs#27 0x000055555555c93d in install_modules (argc=argc@entry=1, argv=argv@entry=0x7fffffffd6e0) at src/install/dracut-install.c:1952 dracutdevs#28 0x000055555555862a in main (argc=<optimized out>, argv=0x7fffffffd6a8) at src/install/dracut-install.c:2090 Signed-off-by: runsisi <runsisi@hust.edu.cn>
johannbg
pushed a commit
that referenced
this pull request
Aug 15, 2022
in install_dependent_modules we use &path[kerneldirlen] as the key for inserting, let's do the same for checking. otherwise installing kernel module has circular dependency from a custom kernel module directory will cause infinite recursion and segfault. $ grep ipmi kbuilt/lib/modules/5.10.121/modules.dep kernel/drivers/char/ipmi/ipmi_msghandler.ko: kernel/drivers/char/ipmi/ipmi_devintf.ko: kernel/drivers/char/ipmi/ipmi_msghandler.ko $ grep ipmi kbuilt/lib/modules/5.10.121/modules.softdep softdep ipmi_msghandler post: ipmi_devintf $ ./dracut-install -D /tmp --kerneldir ~/working/kernel/linux-5.10.121/kbuilt/lib/modules/5.10.121 -m ipmi-devintf Segmentation fault (core dumped) (gdb) b install_dependent_modules Breakpoint 1 at 0x7db0: file src/install/dracut-install.c, line 1513. (gdb) bt #0 install_dependent_modules (modlist=0x0) at src/install/dracut-install.c:1513 #1 0x000055555555c027 in install_dependent_modules (modlist=modlist@entry=0x555555579e90) at src/install/dracut-install.c:1553 #2 0x000055555555bf1c in install_dependent_modules (modlist=0x5555555799d0) at src/install/dracut-install.c:1548 #3 0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x55555557a3f0) at src/install/dracut-install.c:1554 #4 0x000055555555bf1c in install_dependent_modules (modlist=0x555555579d60) at src/install/dracut-install.c:1548 #5 0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x55555557b170) at src/install/dracut-install.c:1554 #6 0x000055555555bf1c in install_dependent_modules (modlist=0x55555557a0f0) at src/install/dracut-install.c:1548 #7 0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x555555575320) at src/install/dracut-install.c:1554 #8 0x000055555555bf1c in install_dependent_modules (modlist=0x55555557ab30) at src/install/dracut-install.c:1548 #9 0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x55555557dd60) at src/install/dracut-install.c:1554 #10 0x000055555555bf1c in install_dependent_modules (modlist=0x55555557b640) at src/install/dracut-install.c:1548 #11 0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x55555557e0f0) at src/install/dracut-install.c:1554 #12 0x000055555555bf1c in install_dependent_modules (modlist=0x55555557b9d0) at src/install/dracut-install.c:1548 #13 0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x555555574340) at src/install/dracut-install.c:1554 #14 0x000055555555bf1c in install_dependent_modules (modlist=0x55555557cf70) at src/install/dracut-install.c:1548 #15 0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x5555555768d0) at src/install/dracut-install.c:1554 #16 0x000055555555bf1c in install_dependent_modules (modlist=0x55555557d750) at src/install/dracut-install.c:1548 #17 0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x55555557e700) at src/install/dracut-install.c:1554 #18 0x000055555555bf1c in install_dependent_modules (modlist=0x55555557de90) at src/install/dracut-install.c:1548 #19 0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x555555581c90) at src/install/dracut-install.c:1554 #20 0x000055555555bf1c in install_dependent_modules (modlist=0x555555571e60) at src/install/dracut-install.c:1548 #21 0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x55555556b620) at src/install/dracut-install.c:1554 #22 0x000055555555bf1c in install_dependent_modules (modlist=0x555555583000) at src/install/dracut-install.c:1548 #23 0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x55555556b640) at src/install/dracut-install.c:1554 #24 0x000055555555bf1c in install_dependent_modules (modlist=0x555555571b40) at src/install/dracut-install.c:1548 #25 0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x555555574100) at src/install/dracut-install.c:1554 #26 0x000055555555c4b0 in install_module (mod=mod@entry=0x555555573bc0) at src/install/dracut-install.c:1617 #27 0x000055555555c93d in install_modules (argc=argc@entry=1, argv=argv@entry=0x7fffffffd6e0) at src/install/dracut-install.c:1952 #28 0x000055555555862a in main (argc=<optimized out>, argv=0x7fffffffd6a8) at src/install/dracut-install.c:2090 Signed-off-by: runsisi <runsisi@hust.edu.cn>
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These commits add functions to parse network related variables from Kernel cmdline options (e.g.
var=%{hostname}) and a bare-bones implementation for hostname, in case the executable is not available.I will follow this up (once it is accepted) with commits that actually make use of it to allow mounting of NFS paths with variables in them. (My feature/nfsmounts branch.)