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Érico Rolim
e4257ed76d
On systems with musl libc, hostid(1) always prints "00000000", which will cause improper behavior when the 90zfs module is configured in a dracut initramfs. Work around this by copying the host /etc/hostid if the file exists, and otherwise only write /etc/hostid if hostid(1) returns something meaningful. This avoids zgenhostid creating a random /etc/hostid for the initramfs, which could lead to errors when trying to import the pool if spl_hostid isn't defined in the kernel command line. Furthermore, tag the /etc/hostid file as hostonly, since it is system specific and shouldn't be taken into account when trying to use an initramfs generated in one system to boot into a different system. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Georgy Yakovlev <gyakovlev@gentoo.org> Co-authored-by: Andrew J. Hesford <ajh@sideband.org> Signed-off-by: Érico Rolim <erico.erc@gmail.com> Closes #11174 Closes #11189