bsdinstall: Filter out devices that cannot be opened
Devices that cannot be opened are most likely the install media and should not be listed as destinations. Reviewed by: allanjude Approved by: allanjude Differential Revision: https://reviews.freebsd.org/D34879 Sponsored by: Rubicon Communications, LLC ("Netgate")
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@ -135,6 +135,16 @@ boot_disk_select(struct gmesh *mesh)
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continue;
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if (strncmp(pp->lg_name, "cd", 2) == 0)
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continue;
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/*
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* Check if the disk is available to be opened for
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* write operations, it helps prevent the USB
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* stick used to boot from being listed as an option
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*/
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fd = g_open(pp->lg_name, 1);
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if (fd == -1) {
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continue;
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}
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g_close(fd);
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disks = realloc(disks, (++n)*sizeof(disks[0]));
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disks[n-1].name = pp->lg_name;
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